Datasheet TDA5147CH Datasheet (Philips)

INTEGRATED CIRCUITS

DATA SH EET

TDA5147CH

12 V Voice Coil Motor (VCM) driver
and spindle motor drive
combination chip

Preliminary specification
File under Integrated Circuits, IC11

1997 Jul 09

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and
spindle motor drive combination chip

FEATURES
Spindle motor driver

• Internal 2 A peak current power drivers

• Low R

isolation drivers

• Induction sense start-up option

• External current sense resistor

• Soft switching on both upper and lower drivers

• Programmable linear or Pulse Width Modulation (PWM)

spindle mode

• Provide spindle active dynamic braking mode.

Voice coil motor driver

• 1.2 A VCM power driver

• Maximum of 1 V drop across the power driver at 0.8 A

• External current sense resistor, with sense amplifier

• External current control loop compensation

• 15 kHz (typ.) VCM current control loop bandwidth

• Three modes of operation:

– Enable VCM
– Retract
– Disable

• Brake after park circuitry.

Power monitor and retract circuit

• +5 V and +12 V power monitor threshold accuracy ±2%

• Hysteresis on both power monitor comparators

• Internal voltage reference: precision 2%

• Buffered reference voltage output pin

(1 Ω maximum total) for high, low and

ds(on)

TDA5147CH

• Retract circuit operates down to 2 V

• Internal thermal sense circuitry with an over temperature

shut down option

• Internal boost voltage generator

• Sleep mode.

Thermal warning circuit

• Output active 15 °C before general thermal shutdown.

APPLICATIONS

• Hard disk drive for Personal Computer products.

GENERAL DESCRIPTION

The TDA5147CH is an ASIC combination chip that
includes the following functions:

spindle motor driver
voice coil motor driver
retract

Power-on.
The circuit is contained in a 64-pin QFP package.
The TDA5147CH is controlled by a custom digital ASIC

(see Chapter “Application Information”). The custom ASIC
provides the necessary commutation sequences for the
spindle drivers via the SCNTL1, SCNTL2 and SCNTL3
inputs. Spindle speed is monitored by comparator outputs
SENU, SENV and SENWIS. Motor speed control is
accomplished by a PWM signal (input at pin SIPWM).

Control of the VCM circuits is via the V
input signals. These inputs provide control of the voice coil
current.

IPWMH

and V

IPWML

ORDERING INFORMATION

TYPE

NUMBER

TDA5147CH QFP64 plastic quad flat package; 64 leads (lead length 1.6 mm);

1997 Jul 09 2

NAME DESCRIPTION VERSION

body 14 × 14 × 2.7 mm

PACKAGE

SOT393-1

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and

TDA5147CH

spindle motor drive combination chip

QUICK REFERENCE DATA

SYMBOL PARAMETER MIN. TYP. MAX. UNIT

Supply voltage

V

CC5

V

CCA12

V

CCS12

V

CC1V12

V

CC2V12

Drivers

I

spin(max)

I

VCM(max)

analog supply voltage 1 4.5 5.0 5.5 V
analog supply voltage 2 10.8 12 13.2 V
power supply for spindle motor drivers 10.8 12 13.2 V
power supply 1 for VCM driver 10.8 12 13.2 V
power supply 2 for VCM driver 10.8 12 13.2 V

maximum spindle current − 2 − A
maximum VCM current − 1.2 − A

1997 Jul 09 3

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and
spindle motor drive combination chip

BLOCK DIAGRAMS

handbook, full pagewidth

PORNCPOR

14

POR12

VADJ

16

V

V

CCA12

CC5

UNDER

VOLTAGE

GENERATOR

V

ref

POR

DETECTOR

to spindle

section

15

V

DD

V

DD

disable

V

PCNTL

50

park

autopark

V

refout

SHPWR1

PARK

CIRCUITRY

RET

35

ADJ

SHPWR2,3

TDA5147CH

SHPWRZ

BRKTC

53

59

V

CMN

POR5

V

V

VADJ

V

refout

IPWML

IPWMH

17

52

1

PWM

2

DECODER

GNDSUBB GNDV

V

refout

3644996, 7 54, 55, 56
V

FLTINP

TDA5147CH

V

refout

V

CC1V12

V

CC2V12

V

V

CCA12

CC5

V

FLTOUT

POWER AMPLIFIERS

SENSE

474
V

CMINP

61
V

V

refout

ISENS1

51VCMP

60

V

ISENL

57VISENH

M

R

s

MGG845

Fig.1 Block diagram of voice coil motor driver.

1997 Jul 09 4

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and
spindle motor drive combination chip

handbook, full pagewidth

BSTFLT

SCNTL2

SCNTL3

29

20SCNTL1

21

22

13SMODE1

V

CC5

41 30

UPPER

BOOSTER

LOGIC

DECODER

V

CC5

V

CC5

BSTCP2BSTCP1

to the VCM
output
stages

U.H
U.L

V.H

THERMAL

V.L

SWITCH

W.H
W.L

brake
disable

TDA5147CH

l

compare

TEMP

SPWMTC

2458

PWM/LIN

PWM

U.H

U.L

V.H

V.L

DRIVER

DRIVER

DRIVER

DRIVER

disable

disable

brake

disable

disable

brake

from PORN block

V

CCS12

TDA5147CH

28

SHPWR3

5

SHPWR2

39

SDRVU

40

SHPWR1

C

clamp

23

SDRVV

R

sense

SISENL 46

SISENH 45

37SCOMP

44SIPWM

38SPWMFLT

PWM

DECODER

FILTER

AMP

19

SISINK242SISINK1

V

ref

I

sense

COMP

PWM/LIN

I

set

I

sense

COMP

I

set

I

compare

6, 7

GNDSUBB

control

amplifier

36

V

CCS12

W.H

W.L

multiplexer

8
V

CCA12

DRIVER

DRIVER

9
V

CC5

disable

disable

brake

SISINK1, SISINK2

COMP

SDRVU

COMP

SDRVV

COMP

SDRVW

54, 55, 56
GNDV

10

25

27
26
18

SDRVW

SDRVN

SENV
SENU
SENWIS

MGG844

Fig.2 Block diagram of spindle motor drivers.

1997 Jul 09 5

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and
spindle motor drive combination chip

PINNING

SYMBOL PIN I/O DESCRIPTION

V

IPWML

V

IPWMH

V

FLTINP

V

FLTOUT

SHPWR2 5 O capacitor for park supply

GNDSUBB 6 − analog ground 2
GNDSUBB 7 − analog ground 2
V

CCA12

V

CC5

SDRVW 10 O phase 3 output for spindle

n.c. 11 − not connected
n.c. 12 − not connected
SMODE1 13 − 3 level input for spindle

CPOR 14 I/O Power-on reset delay

PORN 15 O Power-on reset digital output

POR12

POR5

VADJ

VADJ

SENWIS 18 O digital output of back EMF

SISINK2 19 O connection 2 to the sense

SCNTL1 20 I digital input 1 for spindle

SCNTL2 21 I digital input 2 for spindle

SCNTL3 22 I digital input 3 for spindle

SDRVV 23 O phase 2 output for spindle

SPWMTC 24 I/O capacitor for spindle low side

SDRVN 25 O centre TAP connection to

SENU 26 O digital output of back EMF

1 I LSB PWM input
2 I MSB PWM input
3 O voice coil motor PWM filter

capacitor

4 O PWM filter output voltage

voltage

8 − analog supply voltage 2

(+12 V)

9 − analog supply voltage 1

(+5 V)

motor

mode

capacitor

(active LOW)

16 I adjustment of PORN

threshold (for +12 V)

17 I adjustment of PORN

threshold (for +5 V)

sense 3/inductive sense

resistor

decoder

decoder

decoder

motor

PWM time off

spindle motor

sense 1

TDA5147CH

SYMBOL PIN I/O DESCRIPTION

SENV 27 O digital output of back EMF

sense 2

SHPWR3 28 O capacitor 3 for park supply

voltage
BSTFLT 29 O booster filter output
BSTCP2 30 O booster capacitor 2 output
n.c. 31 − not connected
n.c. 32 − not connected
n.c. 33 − not connected
n.c. 34 − not connected
RET

ADJ

V

CCS12

SCOMP 37 O control amplifier pole

SPWMFLT 38 I/O capacitor for spindle PWM

SDRVU 39 O phase 1 output for spindle

SHPWR1 40 O capacitor 1 for park supply

BSTCP1 41 O booster capacitor 1 output
SISINK1 42 O connection 1 to the sense

GNDSUBA 43 − analog ground 1
SIPWM 44 I digital PWM input for spindle

SISENH 45 I sense resistor for spindle

SISENL 46 I isolated ground connection

V

CMINP

n.c. 48 − not connected
V

CC2V12

V

PCNTL

V

CMP

V

refout

BRKTC 53 I input for setting brake after

35 I/O retract voltage adjustment

pin

36 − power supply of spindle

motor drivers (+12 V)

adjustment

filter

motor

voltage

resistor

current

current

for spindle sense amplifier

47 I closed loop voltage

compensation of VCM

49 − +12 V power supply of VCM

driver

50 I park enable 3-level input
51 O positive output voltage of

H-Bridge

52 O output reference for external

ADC

park time

1997 Jul 09 6

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and
spindle motor drive combination chip

SYMBOL PIN I/O DESCRIPTION

GNDV 54 − power ground 2 of voice coil

motor driver

GNDV 55 − power ground 2 of voice coil

motor driver

GNDV 56 − power ground 2 of voice coil

motor driver

V

ISENH

TEMP 58 O open collector output for

handbook, full pagewidth

57 I positive input voltage of

sense resistor amplifier

early thermal warning

CC1V12

V
64

n.c.
63

ISENS1VISENLVCMN

n.c.

V

62

61

60

TEMP

59

58

TDA5147CH

SYMBOL PIN I/O DESCRIPTION

V

CMN

V

ISENL

V

ISENS1

n.c. 62 − not connected
n.c. 63 − not connected
V

CC1V12

ISENH

V

GNDV

GNDV

GNDV

57

56

55

54

59 O negative output voltage of

H-Bridge

60 I negative input voltage of

sense resistor amplifier

61 O voltage output 1 of sense

resistor amplifier

64 − +12 V power supply of VCM

driver

refoutVCMPVPCNTLVCC2V12

BRKTC

V

53

52

51

50

V

IPWML

V

IPWMH

V

FLTINP

V

FLTOUT

SHPWR2
GNDSUBB
GNDSUBB

V

CCA12

SDRVW

SMODE1

CPOR
PORN

POR12

V

CC5

n.c.
n.c.

VADJ

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

17

VADJ

POR5

18

SENWIS

20

19

SISINK2

SCNTL1

21

22

SCNTL2

SCNTL3

TDA5147CH

23

24

25

SDRVV

SDRVN

SPWMTC

26

SENU

27

SENV

28

29

BSTFLT

SHPWR3

30

31
n.c.

BSTCP2

48

n.c.
V

47

CMINP

SISENL

46

SISENH

45

SIPWM

44

GNDSUBA

43

SISINK1

42

BSTCP1

41

SHPWR1

40

SDRVU

39

SPWMFLT

38

SCOMP

37

V

36

CCS12

RET

35

ADJ

n.c.

34
33

n.c.

32

MGG842

n.c. 49

Fig.3 Pin configuration.

1997 Jul 09 7

Philips Semiconductors Preliminary specification



12 V Voice Coil Motor (VCM) driver and
spindle motor drive combination chip

FUNCTIONAL DESCRIPTION
Spindle drivers

The spindle section (see Fig.2) contains both the low and
high side drivers (configured as H bridges) for a
three-phase DC brushless motor. Back EMF (Electro
Motive Force) sensing of the commutation rate
(pin SENWIS) is an output to an external digital ASIC
circuit. This circuit should provide the input commutation
control as well. Consequently, all speed control, start-up
routine and commutation control will be generated by the
external digital circuit.

The SIPWM signal from the digital circuit is used to control
the spindle current. This PWM signal is internally filtered.
The output of this filter depends solely on the duty factor.
The pole location of this first order low-pass filter is
controlled by an external capacitor at pin SPWMFLT.

Dynamic braking is possible only during non power-down
situations and must be initiated by the digital circuit.

A 3- level mode line (pin SMODE1) allows for:

• Induction sensing in pre-start-up (SMODE1 = 0.5V
or high impedance)

• PWM control during start-up (SMODE1 = 0 V)

• Linear control (SMODE1 = V

CC5

).

CC5

TDA5147CH

mode is to drive the low drivers into saturation, because
saturation reduces the power dissipation during start-up.

When the spindle current reaches the value destined by
the duty factor of the signal at pin SIPWM, a one-shot is
fired. The output of the one-shot remains HIGH for the
programmed off-time (t
pin SPWMTC. The one-shot is not retriggerable for
approximately 10% of the off-time, giving a minimum for
the on-time of 0.1t
output drivers are switched off. The on-time of the drivers
is determined by the charging time of the coil current.

The turn-off time follows: t
With R = 68 kΩ and C = 220 pF, t

The minimum on-time is:

INEAR MODE

L
The linear mode is used when the motor is near to its

intended speed. It can also be used at start-up, but higher
power dissipation will occur. In the linear mode the drivers
are controlled by a sensing amplifier. A Miller network is
used to obtain soft switching on the lower drivers. This
prevents large voltage spikes on the motor coils when the
lower drivers are switching. The high drivers are switched
into the linear (resistive) region.

) set by the RC-network at

off

. During the off-time, the lower spindle

off

=R×C

off

t

=

on

CV

-------­I

off

ln(2)

= 10.4 µs

S

ENSING MODE

The induction sensing mode can be used to sense the
rotor position and to spin-up with high current.

To sense the rotor position, one of the BEMF sensor
outputs (pin SENWIS) will be shared with the voltage
comparator that is used for the induction sensing function.
Prior to start-up each phase is excited for a short period of
time. The current from each coil can be monitored via the
multiplexed output (SENWIS). By comparing the rise times
of each phase the rotor position can be determined.

In cases where the spindle motor requires more current to
spin-up, the sensing mode is used with the exception that
the output SENWIS is ignored. The output drivers are
operated in saturation in the sensing mode, so the motor
current is only limited by the power supply. This condition
of induction sense mode can be used to overcome the
head friction and must only be used when needed.

PWM M

ODE

The PWM mode is normally used during the start-up
phase. Maximum drive voltage is applied to the low drivers
to obtain high start-up torque. The purpose of the PWM

The transconductance gain of the low driver current to filter
voltage can be calculated as follows:

G

m

I

coil

--------------------------- ­V

SPWMFLT

V

1

SISENH



------

--------------------------- ­V

R



s

SPWMFLT

1

1

-----­R

s

A/V=====

-- ­5

For a 100% duty factor at SIPWM, the nominal voltage at
SPWMFLT = 1.74 V. The calculated coil current for a
100% duty factor (sense resistors R

1

1

I

coil

-----------

0.33

1.74 1.05 A=××=

-- ­5

= 0.33 Ω) is:

s

Referencing to the duty factor, the coil current is:

I

coil

-----­R

1

1

-- ­5

s

1.74

0% duty

××

--------------------­100

1

0.348()

-----­R

s

0% duty

×===

--------------------­100

The duty factor is arranged so that at 100%, the voltage
SPWMFLT = 1.74 V and at a 5% duty factor
SPWMFLT = 0 V. This is to ensure that at 0% duty factor
the current will be zero (allowances for circuit tolerances).

The input decoder is driven by three lines which define the
windings to be energized. The input decoder must then
translate these lines to six lines to drive the six output
drivers. The truth table is given in Table 1. The status of
each block in the spindle drive section during the possible
modes of operation is given in Table 4

1997 Jul 09 8

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and

TDA5147CH

spindle motor drive combination chip

Table 1 Input decoder truth table for spindle motor drivers

CONDITION SCNTL1 SCNTL2 SCNTL3 SDRVU

(1)

SDRVV

Disable LOW LOW LOW x x x
Dynamic brake HIGH HIGH HIGH HIGH HIGH HIGH
State 1 HIGH HIGH LOW LOW x HIGH
State 2 HIGH LOW LOW x LOW HIGH
State 3 HIGH LOW HIGH HIGH LOW x
State 4 LOW LOW HIGH HIGH x LOW
State 5 LOW HIGH HIGH x HIGH LOW
State 6 LOW HIGH LOW LOW HIGH x
Under voltage −−−xxx

Note

1. x = high impedance.

VCM driver

The VCM driver (see Fig.1) is a linear, class AB, H-bridge
type power driver with all power devices internal to the IC.
In addition to the power stage a sense resistor enables the
VCM current to be measured. The VCM current is
controlled (see Fig.5) via two PWM signals, V
V

, that are generated by the digital circuit. The signal

IPWML

at pin V
pin V

IPWML

factor of (V

weights 32 times more than the signal at

IPWMH

, thus the current is proportional to the duty

IPWML

+32×V

). These PWM signals are

IPWMH

IPWMH

and

filtered by using an internal 3rd-order low-pass filter
(Butterworth filter).The bandwidth of this low-pass filter is

nominally 40 kHz (less than 2 degrees lag at 500 Hz), but
the real pole may be adjusted by an external capacitor
connected to pin V

. The filter output (pin V

FLTINP

depends on the duty factor of the PWM signals only.
A 3-level mode line (V

• Enable VCM drivers; V

• Disable VCM drivers; V

) has been included that will:

PCNTL

PCNTL=VCC5

= 0.5V

PCNTL

impedance

• Park (soft retract the actuator); V
See Table 2 for the truth table of the VCM driver modes.

(normal)

CC5

PCNTL

(1)

or high

=0V.

SDRVW

FLTOUT

(1)

)

Table 2 V

MODES OF OPERATION AT

POWER GOOD (PORN = HIGH)

VCM enable V
VCM disable 0.5V

and SCNTL modes

PCNTL

V

INPUT STATE

PCNTL

CC5

or high impedance X X X

CC5

(1)

SCNTL1 SCNTL2 SCNTL3

SCNTL INPUT STATES

XXX

(1)

Park 0 V X X X
Spindle enable X see Table 3 see Table 3 see Table 3
Spindle disable X LOW LOW LOW
Spindle brake X HIGH HIGH HIGH
Spindle mode 0.5V

or high impedance LOW LOW LOW

CC5

Note

1. X = don't care.

1997 Jul 09 9

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and
spindle motor drive combination chip

ENABLE VCM DRIVERS
When V

by V

IPWMH

voltage at pin V
voltage is approximately 1 V above V
factor the V
V

. At a 50% duty factor, the voltage level is equal to

refout

V

(typically 4 V). The V

refout

filtered and output at V
varies between ±2 V about V
conjunction with the sense resistor amplifier, drives the
two VCM drivers as illustrated in Fig.4. The equation
describing the transconductance from V

handbook, full pagewidth

PCNTL

and V

equals V

IPWML

FLTOUT

voltage is approximately 1 V below

FLTINP

, the VCM drivers are controlled

CC5

. Their duty factor is converted to a

. At a 100% duty factor the V

refout

voltage is amplified,

FLTINP

. The voltage at V

FLTOUT

. The V

refout

. At a 0% duty

FLTOUT

voltage, in

FLTOUT

to I

FLTINP

coil

FLTINP

is:

TDA5147CH

I

G

=

--------------------------------------------

m

V

=

----------------------------------------------------­V

VFLTOUTVrefout

2

=

In a typical application:

I

-------------------------------------------­V

coil

FLTINPVrefout

The transconductance is variable by selecting external
resistors R2/R1 and sense resistors RS.

V

refout

coil

2I

–

coil

VFLTINPVrefout

–()

1

R2

---------- -

------- -

gain

R1

2

–

-- ­4

1

-------­RS

×

A/V×××

6.6 kΩ

-----------------­10 kΩ

× 1 A/V==

1

-----------

0.33

R2

V

IPWML

V

IPWMH

V

FLTINP

V

CMINP

V

ISENS1

1
2

3

V

45

61

refout

PWM

DEC

4R

V1
V1

0.5 V

4R

BUFFER

R1

R

CCV12

V

refout

R

R

R

R

V

FLTOUT

4

V

CMN

59

R

V

CMP

51

V

ISENL

60

V

ISENH

57

I

COIL

RS

MGG846

voice

M

coil

motor

Fig.4 Transconductance model.

1997 Jul 09 10

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and
spindle motor drive combination chip

DISABLE VCM DRIVERS
With the V

disabled while the rest of the circuits remain enabled.
A sleep mode is initiated when the spindle and VCM are
disabled (this places the TDA5147CH in its lowest power
setting).

A

CTUATOR PARK

Retracting the actuator can be accomplished by driving
V

LOW in conjunction with either the spindle turning

PCNTL

or a brake voltage has been applied. An adjustable retract
voltage of 1.2 V (max.) is applied between the V
V

outputs. The retract circuit obtains its retract current

CMP

from the spindle BEMF (pins SHPWR2 and SHPWR3).
The retract voltage is determined by two external resistors.

One end is connected to pin V
The common point is connected to pin RET
for additional information).

signal at 0.5VCC the VCM drivers are

PCNTL

and the other to ground.

CMN

CMN

(see Fig.8

ADJ

and

TDA5147CH

The calculation of V

V

RETRACT

V

= 0.65 V at 25 °C and ∆VBE/∆T=−2 mV/°C, 50 kΩ

BE

V

BE

RETRACT

can vary by±30%. It should be noted that R2 has to be less
than 10 kΩ.

Pin RET

can be pulled to ground by applying 0.7 V

ADJ

(VBE) on pin BRKTC. This is used to perform spindle brake
during power down.

When pin 35 (RET
the V

is taking place, but the V

CMN

ADJ

LOW. In that case, the SHPWR2 and SHPWR3 lines are
loaded with the VCM motor by means of an internal MOS
transistor.

is as follows:

R1 R2+



×=

----------------------



R1

+

---------------­50 kΩ

R2

) is pulled to ground, no regulation of

output is still kept

CMP

V

handbook, full pagewidth

V

IPWMH

V

IPWML

ref

LEVEL

CONVERTOR

LEVEL

CONVERTOR

32 : 1

ATTENUATION

SUM

UNITY

GAIN

LOW-PASS

MBH019

V

FLTOUT

Fig.5 Block diagram of the VCM driver PWM filter.

Table 3 Booster, spindle drivers, comparator, decoder, amplifier and filter modes

FUNCTION

UPPER

BOOSTER

UPPER

DRIVERS

LOWER

DRIVERS

COMPARATOR

CONTROL

AMPLIFIER

Spindle enable ON ON ON ON ON
Spindle disable ON ON ON ON ON
PORN LOW OFF OFF ON ON OFF
Sleep OFF OFF ON ON OFF

1997 Jul 09 11

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and
spindle motor drive combination chip

Power-on reset

The Power-on reset circuit monitors the voltage levels of
both the +5 V and the +12 V supply voltages as shown in
Fig.6. The PORN (active LOW) logic line is set HIGH
following a supply voltage rise above a specified voltage
threshold plus a hysteresis, and delayed by a time t

is controlled by an external capacitor. This PORN signal
should remain HIGH until either the +5 or +12 V supplies
drop below the voltage threshold, at which point thePORN
line should be asserted LOW.
The t

timing is set by the following equation:

C

CV

×

t

=

C

Where V

th

-----------------­I

= 2.5 V and I is 12 µA (typ.).

th

A negative going pulse width of 5 µs on either the
+5 or +12 V rail will provide a full output pulse. If another
trigger pulse occurs before the output is completed a new
output pulse will be originated. This implies the Power-on
reset circuit is a retriggerable one-shot with a maximum
trigger pulse of 5 µs (see Fig.7).

C

that

TDA5147CH

During a power-down situation the Power-on reset circuit
must not only generate a PORN output signal, but must
also activate the VCM retract circuitry. In doing so, the
VCM driver draws power from SHPWR2 and SHPWR3
during spin-down, and uses this power to bias the VCM
against one of the hard stops of the actuator. This prevents
the heads from landing on data zones. This BEMF supply
is isolated from the supply voltage for the drive, and is
half-wave rectified. An external retract capacitor is used to
provide the supply voltage for the retract circuit
(SHPWR1).

It should be noted that in both power-down retract and
command retract situations, the voltage across the VCM
can be adjusted (RET
actuator.

The status of both the VCM driver blocks and the spindle
driver blocks is shown in Tables 5 and 6.

pin) to limit the velocity of the

ADJ

handbook, full pagewidth

V

CC

0.8 V

PORN

V

hys

t

C

t

C

MGG848

threshold

t

t

Fig.6 Power-on reset timing.

1997 Jul 09 12

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and
spindle motor drive combination chip

V

CC

PORN

threshold

1 V

5 µs

Fig.7 Trigger pulse requirement.

hysteresis

slopes 1 µs/V

t

C

MGG849

TDA5147CH

SLEEP MODE
A sleep mode is used to save power when the spindle

drivers and the VCM drivers are in a disabled state. These
two conditions automatically turn off all drivers and
amplifiers that are not required. The total power dissipation
is approximately 100 mW. The sleep mode is activated
when both the spindle (SCNTL1, 2 and 3 are LOW) and
the VCM are disabled (V

T

HERMAL SHUTDOWN

When the TDA5147CH junction temperature is greater
than 150 °C all power drivers will be automatically
disabled. This is to ensure that no fire hazard occurs due
to chip overheating.

left open-circuit).

PCNTL

1997 Jul 09 13

1997 Jul 09 14

Table 4 One-shot, comparators, filter, amplifier and logic decoder modes

FUNCTION ONE-SHOT

CURRENT

COMPARATOR

PWM DECODER

FILTER

SMODE

COMPARATOR

CURRENT SENSE

AMPLIFIER

Spindle enable ON ON ON ON ON ON
Spindle disable ON ON ON ON ON ON
PORN LOW ON ON ON ON OFF ON
Sleep ON ON ON ON OFF ON

LOGIC DECODER

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and

spindle motor drive combination chip

Table 5 V

FUNCTION V

, PWM, power, PORN and retract modes

ISREF

BUFFER PWM DECODER

ISREF

12 V AND 5 V

COMPARATOR

FILTER

AMPLIFIER

PORN DETECTOR RETRACT CIRCUIT

VCM enable ON ON ON ON ON OFF
VCM disable ON ON ON ON ON OFF
Park ON ON ON ON ON ON
Sleep OFF OFF ON OFF ON OFF
PORN LOW OFF OFF ON OFF ON ON

Table 6 Reference, sense, thermal, voltage and sleep modes

V

FUNCTION

3 LEVEL

VOLTAGE

ref

OUTPUT
BUFFER

V

ref

OUTPUT

SENSE2 SENSE1

VCM POWER

AMPLIFIER

VOLTAGE

GENERATOR

THERMAL

SHUTDOWN

SLEEP

FUNCTION

VCM enable ON ON ON ON ON ON ON ON OFF
VCM disable ON ON ON ON ON OFF ON ON OFF

(1)

Park

ON ON ON ON ON OFF ON ON OFF
Sleep ON OFF OFF OFF OFF OFF ON ON ON
PORN LOW ON OFF OFF OFF OFF OFF ON ON ON

Notes

1. Park will provide adjustable retract if the spindle brake is on, or if the spindle brake is enabled.

2. If SP disable is OFF.

3. Requires SP disable and VCM disable to be ON.

(2)

(3)

TDA5147CH

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and

TDA5147CH

spindle motor drive combination chip

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

V

CC5

V

CCA12

V
V

VSDRVN

V
T
T
T

SDRVU
SDRVW

n
stg
j
amb

, V

and

SDRVV

HANDLING

Inputs and outputs are protected against electrostatic discharge in normal handling. However, to be totally safe, it is
desirable to take normal precautions appropriate to handling MOS devices.

analog supply voltage 1 indefinite time period −0.3 +6.0 V

−0.3 +7.0 V

analog supply voltage 2 indefinite time period −0.3 +13.5 V

−0.3 +15.0 V

,

output voltage spindle motor driver −0.3 +20 V

output voltage on other pins −0.3 − V
IC storage temperature −55 +125 °C
maximum junction temperature − +150 °C
operating ambient temperature 0 +70 °C

THERMAL CHARACTERISTICS

SYMBOL PARAMETER CONDITIONS VALUE UNIT

R

th j-a

thermal resistance from junction to ambient in free air 28 K/W

1997 Jul 09 15

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and

TDA5147CH

spindle motor drive combination chip

CHARACTERISTICS
Operating characteristics

=5V; V

V

CC5

CCS12=VCCA12=VCCV12

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supplies

V

CC5

V

CCS12

analog supply voltage 1 4.5 5 5.5 V
supply voltage for spindle

motor drivers

V

CCV12

V

CCA12

supply voltage for VCM driver 10.8 12 13.2 V
analog supply voltage 2 10.8 12 13.2 V

Upper booster

C

APCP

C

CAPFLT

external output capacitor connected between

charge pump capacitor connected between

Spindle low side; pin SPWMTC

C

sl

R

sl

capacitor for spindle low side − 220 − pF
resistor for spindle low side − 68 − kΩ

Capacitors for park voltage supply; pins SHPWR2 and SHPWR3

C

clamp

clamp capacitor − 22 −µF

Digital PWM input; pin SIPWM

V

IH

V

IL

HIGH level input voltage 3 5 5.5 V
LOW level input voltage −0.3 0 +2 V

Digital inputs of spindle decoder; pins SCNTL1, SCNTL2 and SCNTL3

V

IH

HIGH level input voltage see Table 1; V

3 level input; pin SMODE1

V

oh

voltage level for current sense
in non PWM mode

V

TRI

voltage level for BEMF sense
and PWM switch control

V

ol

voltage level for BEMF sense
and linear control

=12V; T

BSTCP1 and BSTCP2

BSTFLT and ground

state also achieved
with floating input

= 0 to 70 °C.

amb

10.8 12 13.2 V

− 10 − nF

− 22 − nF

= 5 V 3.5 −− V

CC5

0.75V

CC5

+

−− V

0.15

0.25V

0.15

−−0.25V

CC5

+

0.50V

CC5

0.75V

0.15

CC5

CC5

−

V

−

V

0.15

Control amplifier; pin SCOMP

C

SCOMP

Park enable; pin V

V

oh

V

TRI

control loop capacitor − 47 − nF

PCNTL

voltage level for enable 0.75V

voltage level for disable state also achieved

with floating input

V

ol

voltage level for retract −−0.25V

1997 Jul 09 16

0.15

0.25V

0.15

CC5

CC5

+

−− V

+

0.50V

CC5

0.75V

CC5

−

V

0.15

−

CC5

V

0.15

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and

TDA5147CH

spindle motor drive combination chip

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

PWM decoder; pins V

V

IH

V

IL

f

PWM

HIGH level input voltage 3.0 −− V
LOW level input voltage −−2.0 V
frequency range at the inputs of

the PWM

T

PWM

PWM pulse width 25 −− ns

Sense resistor amplifier; pins SISENL and SISENH

V

CS

common mode input sense
voltage

R

SENSE

spindle sense resistor − 0.33 −Ω

Power-on reset generator

C

PORN

Power-on reset capacitor see Fig.6 − 220 − nF

VCM PWM filter

C

VFLTINP

filter capacitor − 1.8 − nF

VCM driver

R

SENSE

VCM sense resistor − 0.33 −Ω

IPWML

and V

IPWMH

C

FLTINP

= 1.8 nF −−625 kHz

0 − 2V

Electrical characteristics

V

CC5

=5V; V

CCS12=VCCA2=VCCV

= 12 V; T

= 0 to 70 °C.

amb

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Analog supply current (nominal voltage)

I

CC5

analog supply current 1 linear (no spindle or VCM

− 5.0 8.0 mA

load)
sleep mode (no spindle or

− 3.0 − mA

VCM load)

I

CC12

analog supply current 2 linear (no spindle or VCM

− 15 33 mA

load)
sleep mode (no spindle or

− 2.3 − mA
VCM load) sense resistor
output

sleep mode (no spindle or

− 6.0 − mA
VCM load) sense resistor input

P

DISS

total power dissipation sleep mode −− 150 mW

Voltage booster; pin BSTFLT

V

wCP

charge pump output

nominal voltages 18.2 19.2 19.8 V

voltage

I

CHARGE

charge pump output
current

voltage drop of 100 mV across
booster

− 1.5 − mA

1997 Jul 09 17

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and

TDA5147CH

spindle motor drive combination chip

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Power monitor comparators; pins POR5

V

t12

threshold voltage level
adjustment for +12 V

V

t5

threshold voltage level
adjustment for +5 V

H

V5

hysteresis on V

CC5

hysteresis in positive direction. 30 70 110 mV

comparator

H

V12

hysteresis on V

CCA12

hysteresis in positive direction. 120 200 280 mV

comparator

V

12adj

Power-on reset 12 V
adjustable voltage

normal power supply to
resistor divider 25.4 kΩ and

9.7 kΩ

V

5adj

Power-on reset 5 V
adjustable voltage

normal power supply to
resistor divider 7.86 kΩ and
10 kΩ

Power-on reset generator; pins CPOR and PORN

V

OL

LOW level input voltage IOL= 2 mA; VCC= 5 or 12 V

(below threshold voltage)

V

OH

HIGH level input voltage VCC=5or12V

(above hysteresis voltage)

I

CPOR

source current for charging
capacitor

V

CPOR

t

dPORN

t

RPULSE

threshold voltage − 2.5 − V
Power-on reset delay capacitance = 220 nF − 45 − ms
power supply maximum

see Fig.7 − 2.5 5.0 µs

pulse duration

and POR12

VADJ

VADJ

8.7 9.0 9.3 V

4.4 4.5 4.6 V

3.25 3.32 3.39 V

2.74 2.8 2.86 V

−− 0.5 V

4.85 −− V

8.2 12 15.3

Thermal protection

T

SOFF

switch-off junction

150 − 164 °C

temperature

∆T thermal hysteresis − 30 −°C

Thermal warning; pin TEMP

T

warn

V

OL

I

IH

warning temperature gives a warning 15 °C before

T

SOFF

output voltage I
leakage current when

= 500 µA −− 1.2 V

Out

V

= 5 V 10 −− µA

Out

− T

− 15 −°C

SOFF

output collector is ‘off’

1997 Jul 09 18

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and

TDA5147CH

spindle motor drive combination chip

Spindle motor driver characteristics

V

=5V; V

CC5

CCS12=VCCA12=VCCV12

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Overvoltage protection; pins SDRU, SDRV and SDRW

V

CLP

overvoltage protection
clamping voltage

Spindle state control inputs; pins SCNTL1 SCNTL2 and SCNTL3

I

in

input current −10 − +10 µA

Back EMF comparators

V

CM

common mode input
voltage for centre tap
connection (SDRVN)

I

CLP

common mode clamping
current

V

COS

comparator offset voltage
relative to SDRVN

∆V

COS

variation in comparator
voltages

V

sink

comparators output drive
sink voltage

V

source

comparators output drive
source voltage

= 12 V; T

power supply off; apply voltage

= 0 to 70 °C.

amb

− 19 − V
to outputs; check clamping
voltage is at 100 mA

comparators will be

−0.5 − V

CCA2

+ 0.7 V
operational with other inputs at
V

− 1V

CCA2

V

SDRVN voltage range from

at 0 V −1.6 −−0.2 mA

SDRVN

−5 − +5 mV

3to10V
for the same IC −7 − +7 mV

I

=1mA −− 0.5 V

o(sink)

I

o(source)

=40µA 2.7 −− V

Spindle output drivers; pins SDRVU, SDRVV and SDRVW

R

I

DSX

ds(on)

total resistance at output
(source + sink + isolation)

off-state output leakage

I

= 1 A at T

SDRV

I

= 1 A at Tj= 125 °C − 1.3 1.7 Ω

SDRV

=25°C − 0.8 1.0 Ω

amb

disable state Tj= 125 °C − 0.3 1.0 mA

current

L

IN

recirculating diode forward

I

=1A − 0.8 1.1 V

SDRV

voltage

SRT slew rate test test for Miller network 0.11 − 0.27 V/µs

Spindle current control PWM DAC and filter; pins SIPWM and SPWMFLT

L

IN

input current at SIPWM at HIGH-to-LOW voltage

−200 − +200 mA

transition

R

SOUT

output resistance at

23 34 45 KΩ

SPWMFLT

V

SOUT

SPWMFLT voltage 100% duty factor SIPWM − 1.75 − V

50% duty factor at SIPWM − 0.85 − V
0% duty factor at SIPWM − 0 − V

1997 Jul 09 19

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and

TDA5147CH

spindle motor drive combination chip

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

PWM one-shot; pin SPWMTC

I

sk

I

sc

V

thST

V

thEND

t

OFF

t

ON(min)

Current control loop and sense amplifier; pins SISENH and SCOMP

V

i

I

SENSE

K

SP

V

SENSH

B

WD

output sink current Vo= 3 V 600 850 1100 µA
output source current Vo=1V −−12 −µA
threshold voltage start level voltage for discharging 2.0 2.56 3.0 V
threshold voltage end level voltage for charging 0 0.1 0.2 V
one-shot off time external network of R = 68 kΩ

81012 µs

and C = 220 pF

one-shot minimum on time external network of R = 68 kΩ

1 −− µs

and C = 220 pF

current sense amplifier
common mode input

current sense amplifier
operational over range

0 − 3.0 V

voltage
current sense amplifier

−10 −− µA

input current
voltage ratio between

SPWMFLT and SISENH
output voltage at SENSH for 100% duty factor;

over sense
resistance = 0.1 to 1 Ω

4.9 5.0 5.1 V/V

0.324 0.342 0.36 V

Rs= 0.33 Ω

current loop bandwidth for
SPWMFL T to motor current

for 50% duty factor;
R

= 0.33 Ω

s

for 5% duty factor; R
for 0% duty factor; R
Rs= 0.33 Ω, L

R

= 12.0 Ω

motor

motor

= 0.33 Ω 0 0.018 0.026 V

s

= 0.33 Ω 0 0 1.0 mV

s

= 1 mH,

− 0.174 − V

35 − kHz

1997 Jul 09 20

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and

TDA5147CH

spindle motor drive combination chip

Voice coil motor driver characteristics

V

=5V; V

CC5

CCS12=VCCA12=VCCV12

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Retract control voltage; pins V

I

RET

t

RET

retract voltage load current V

retract voltage hold time
(power down)

V

RET

I

BRAKE

retract voltage regulation nominal power supply at

I

BRK1

I

BRK2

VCM current control PWM DAC; pins V

I

V

LIN

FL(p)

input current
V

IPWMH,VIPWML

positive full-scale DAC
output voltage

F

LI(n)

V
negative full-scale DAC

FLTINP

− V

refout

output voltage
V

FLTINP

− V

refout

current ratio between MSB
and LSB

Z

O

output impedance from
V

FLTINP

to V

refout

CMN

= 12 V; T

and V

CMP

amb

SHPWR1

= 0 to 70 °C.

= 9 V; power supplies

− 3.0 −µA

off
retract capacitor = 2.2 µF5−− s

0.8 1.1 1.4 V

T

=25°C, pin 35 open

amb

power supply off;
V
V

SDRVU
SHPRW1

= 9 to 2 V;

= 7.5 V, pin 35 open

power supply off;

0.8 1.1 1.4 V

120 −− mA
SHPWR1 = 8 V;
SHPWR2, 3=4V;
RET
R

power supply off;

=0V;

ADJ

LOAD(VCM

)=10Ω

50 −− mA
SHPWR1 = 6.5 V;
SHPWR2, 3=2V;
RET
R

IPWMH,VIPWML

=0V;

ADJ

LOAD(VCM)

=10Ω

and V

FLTINP

voltage range 0 to 5 V −200 − +200 µA

100% duty factor − +1.0 − V

0% duty factor −−1.0 − V

31.5 32 32.5

1.40 2.0 2.6 kΩ

1997 Jul 09 21

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and

TDA5147CH

spindle motor drive combination chip

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

VCM PWM filter; pins V

I

o(VFLTOUT)

output current on V

∆Φ maximum phase shift from

V

f

co

filter cut-off frequency from
V

FLTINP

FLTINP

to V

to V

att filter attenuation at 1 MHz

measured from V
V

FLTOUT

V

FLTOUT

output voltage range
measured at V
V

IPWML

and V

Reference voltage; pin V

V

ref(o)

output reference voltage Io= 4 mA; CL= 10 nF 3.8 4.0 4.2 V

Current Sense Amplifier; pins V

I

SEN

I

sk1

I

s1

V

R1

G1

V

os1

B

W1

input current at V
V

ISENH

output sink current 1
V

ISENS1

output source current 1
V

ISENL

operating voltage range
V

, V

ISENL

ISENH

amplifier gain for

V

------------------------------------------­V

–

ISENS1Vrefout

–

ISENS1VISENL

output offset voltage V
unity gain bandwidth − 10 − MHz

PSRR power supply rejection ratio f

Brake after park function; pins BRKTC and RET

V

BRAKE

BRKTC level to perform
brake action

I

BRKTCON

BRKTC input current
during power ‘on’

I

RETADJON

RET

current during

ADJ

power ‘on’

V

RETADJOFF

low level output voltage on
RET

power ‘OFF’

ADJ

FLTINP

FLTOUT

FLTOUT

FLTOUT

IPWMH

refout

and V

FLTOUT

FLTOUT

to

FLTINP

, with

ISENS1,VISENL

,

ISENL

V

FLTOUT

measured at 500 Hz;
C

= ∆Vo+ 10 mV 500 −− µA

−− 2 deg

= 1.8 nF

filter

− 40 − kHz

− 70 − dB

0% duty factor V − 2.08 V − 2.0 V − 1.92 V
50% duty factor V − 0.06 V V + 0.06 V
100% duty factor V + 1.92 V + 2 V + 2.08 V

and V

ISENH

overvoltage range of 0 to 12 V −200 +415 +540 µA

force V

ISENH

- V

ISENL

to equal

400 −− µA

−250 mV; allow output drop of
100 mV between no load and full
load

force V

ISENH

- V

ISENL

to equal

400 −− µA

250 mV; allow output drop of
100 mV between no load and full
load

gain and offset valid 0 − 12 V

under all conditions 3.8 4.0 4.2

− V

ISENH

< 20 kHz − 60 − dB

i

ADJ

ISENL

= 0 V at 0.5V

−15 − +15 mV

CC

0.4 0.7 V

V

V

V
V

= 0.4 V 300 −− µA

BRKTC

RETADJ

CC5
CC12

= 0.4 V −− 10 µA

= 0 V; SHPWR2 = 5 V;

=0V; I

RETADJ

= 400 µA

−− 0.5 V

1997 Jul 09 22

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and

TDA5147CH

spindle motor drive combination chip

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

VCM output drivers; pins V

R

DSON25

R

DSON125

I

LK

B

W

t

cro

RATIO =

I

–

2I1

L=

--------------

–

I

1I0

I

os

I

IND

V

OS1

total output resistance
(source + sink + isolation)

output leakage current Tj= 125 °C −− 1mA
unity gain bandwidth from V
crossover distortion time ramp input V
symmetry of VCM drivers

I

2

--- -

V

, V

CMP

I

1

CMN

linearity of VCM drivers
V

, V

CMP

CMN

VCM output offset current V

input current V
input offset voltage V

CMP,VCMN

CMINP

Notes

1. V

CCA12

, V

CCV12

, V

CCS12

and V

are not loaded. Sleep mode defined by 000 as spindle code and VCM disable.

2. Switching levels with respect to SDRVU, SDRVV and SDRVW.

3. For the description of the Power-on reset see Fig.6.

4. On spindle motor drivers:
a) Zero duty factor guarantees zero current output.
b) 5% duty factor guarantees current output.
c) Maximum current will be activated at 100% duty factor.

5. 0.2 V < V

SDRVN<VCCA12

− 1V.

and V

CMINP

T

=25°C − 1.0 1.25 Ω

amb

Tj= 125 °C − 1.5 1.9 Ω

I2=I
I1=I

to V

CMINP

CMINP

at duty factor = 10%;

RVCM

at duty factor = 90%;

RCVM

CMP

, V

CMN

− 2 − MHz

=20µs − 25 µs

0.93 1 1.07

RS = 0.33 Ω; R1 = 10 kΩ,
R2 = 6.6 kΩ, RL=15Ω

I2=I
I1=I
I0=I

at duty factor = 10%;

RVCM

at duty factor = 90%;

RCVM

at duty factor = 50%;

RCVM

0.97 1 1.07

RS = 0.33 Ω; R1 = 10 kΩ,
R2 = 6.6 kΩ, RL=15Ω

IPWMH

, V

IPWML

at 50% duty

−28 0 +28 mA
factor; RS = 0.33 Ω; RL=15Ω;
R1=10kΩ, R2 = 6.6 kΩ

Vi= 0 to 10 V − 0.07 0.2 µA

CMINP

CC5

from V

are connected together; the outputs SDRVU, SDRVV, SDRVW, V

CMINP

to V

refout

−10 − +10 mV

CMP

and V

CMN

1997 Jul 09 23

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and
spindle motor drive combination chip

EQUATIONS

Gain from V

V

FLTOUTVrefout

-------------------------------------------- ­V

FLTINPVrefout

–

–

Gain from V

V

FLTOUTVrefout

-------------------------------------------- ­R1

Gain of V

ISENS1

V1 V

HAVE

---------------------------- -

1V

SUB

–

------------------------ ­4R

Transconductance equation:

G

--------------------------------------------

m

V

FLTINPVrefout

FLTINP

to V

FLTOUT

:

2=

FLTOUT

–

to V

V

-------------------------------------------

(under closed loop V

ISENS1

ISENS1Vrefout

–

R2

or

relative to ∆ Vs (voltage across Rs):

R

–

R

∆

--------- -

V1 V

–

--------------------------------­4R

V

s

×==

------------------------------------------ -

R

V

s

FLTINPVrefout

SENS1

∆

V

--------- ­R

–

4R

refout

V

refout

I

coil

ISENH

-------------------

V

ISENLVISENH

------------------------------------------- -

–

CMINP=Vrefout

V

FLTOUTVrefout

-------------------------------------------- ­V

SENS1Vrefout

s

or

–

–

V

ISENL

==

-----------------­R

V

----------------------------------------- -

–

SENS1Vrefout

∆

V

s

1

–

TDA5147CH

(1)

):

R1

==

------­R2

4===

(2)

(3)

(4)

(5)

From equation (1):

From equation (2):

G

=

m

G

m

From equation (3) and (4):

Vs∆

--------- -

-------------------------------------------- -

R

V

s

Vs∆

2

--------- ­R

s

G

m

2

FLTOUTVrefout

R2

×× V

------­R1

1

1

× 2

------

-- -

R

4

s

–

–()=

SENS1Vrefout

R2

1

××

------­R1

×

-- ­2

-----­R

R2

1

×==

------- ­R1

s

1997 Jul 09 24

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and
spindle motor drive combination chip

APPLICATION INFORMATION

handbook, full pagewidth

PORN

V

PCNTL

V

IPWML, VIPWMH

DIGITAL
CIRCUIT

SCNTL1 to 3, SIPWM

SENU, SENV, SENWIS

TDA5147CH

TDA5147CH

POWER-ON RESET

PARK

VOICE COIL

MOTOR DRIVE

ACTUATORS

SPINDLE

MGG847

No external power drivers; dynamic braking for non-power down situations; 2A spindle current; 1.2 A VCM power driver; full-wave spindle mode, PORN
monitors for both 5 and 12 V supplies; auto-park in the event of power-down; Auto-brake after park in case of power down.

Fig.8 System block diagram.

1997 Jul 09 25

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and
spindle motor drive combination chip

handbook, full pagewidth

V

CMN

V

CC5

digital
circuit

n.c.

V

refout

RET

ADJ

SPWMFLT

SPWMTC

PORN

BRKTC

SENWIS

SENV

SENU

TEMP

V

IPWML

V

IPWMH

V

PCNTL

SCNTL1
SCNTL2
SCNTL3

SMODE1

SIPWM

0.47 µF

52
35
38
24

15
53

18
27
26

58

1
2
50

20
21
22
13
44

12 V 5 V

CCA12VCC1V12VCC2V12VCCS12VCC5

V

8 64 49 36

92941 30

TDA5147CH

BSTFLT

C

FLT

BSTCP1

C

CP

BSTCP2

40372856, 754, 55, 56

17

16

14

61

47

51
60
57

59
19
42
45

10
25

23
39

46

3

4

POR5

VADJ

POR12

CPOR
V

FLTINP

V

ISENS1

V

FLTOUT

V

CMINP

V

CMP

V

ISENL

V

ISENH

V

CMN
SISINK2
SISINK1
SISENH

SDRVW
SDRVN

SDRVV
SDRVU

SISENL

VADJ

R

SENSE

TDA5147CH

C

POR

M

spindle

motor

voice
coil
motor

(1)

(1)

GNDV

(1) Optional.

SHPWR2

GNDSUBB

SHPWR3

C

CLAMP

Fig.9 Application diagram.

1997 Jul 09 26

SCOMP

SHPWR1

MGG843

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and
spindle motor drive combination chip

PACKAGE OUTLINE

QFP64: plastic quad flat package; 64 leads (lead length 1.6 mm); body 14 x 14 x 2.7 mm

c

y

X

A

48 33

49

32

Z

E

TDA5147CH

SOT393-1

e

w M

b

pin 1 index

64

1

w M

b

0.25

p

D

H

D

0.45

0.30

0.23

0.13

D

14.1

13.9

e

DIMENSIONS (mm are the original dimensions)

mm

A

max.

3.00

0.25

0.10

2.75

2.55

UNIT A1A2A3bpcE

Note

1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.

17

16

Z

D

0 5 10 mm

(1)

(1) (1)(1)

14.1

13.9

p

B

v M

scale

eH

H

17.45

0.8

16.95

v M

D

E

A

B

E

17.45

16.95

A

H

E

LLpQZywv θ

A

1.03

0.73

2

A

1

detail X

1.4

1.1

0.16 0.100.161.60

Q

(A )

3

θ

L

p

L

Z

E

D

1.2

0.8

o

7

o

0

1.2

0.8

OUTLINE
VERSION

SOT393-1 MS-022

IEC JEDEC EIAJ

REFERENCES

1997 Jul 09 27

EUROPEAN

PROJECTION

ISSUE DATE

94-06-22
96-05-21

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and
spindle motor drive combination chip

SOLDERING
Introduction

There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.

This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our

“IC Package Databook”

Reflow soldering

Reflow soldering techniques are suitable for all QFP
packages.

The choice of heating method may be influenced by larger
plastic QFP packages (44 leads, or more). If infrared or
vapour phase heating is used and the large packages are
not absolutely dry (less than 0.1% moisture content by
weight), vaporization of the small amount of moisture in
them can cause cracking of the plastic body. For more
information, refer to the Drypack chapter in our

Reference Handbook”

Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.

Several techniques exist for reflowing; for example,
thermal conduction by heated belt. Dwell times vary
between 50 and 300 seconds depending on heating
method. Typical reflow temperatures range from
215 to 250 °C.

(order code 9398 652 90011).

“Quality

(order code 9397 750 00192).

TDA5147CH

If wave soldering cannot be avoided, the following
conditions must be observed:

• A double-wave (a turbulent wave with high upward

pressure followed by a smooth laminar wave)
soldering technique should be used.

• The footprint must be at an angle of 45° to the board

direction and must incorporate solder thieves
downstream and at the side corners.

Even with these conditions, do not consider wave
soldering the following packages: QFP52 (SOT379-1),
QFP100 (SOT317-1), QFP100 (SOT317-2),
QFP100 (SOT382-1) or QFP160 (SOT322-1).

During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.

Maximum permissible solder temperature is 260 °C, and
maximum duration of package immersion in solder is
10 seconds, if cooled to less than 150 °C within
6 seconds. Typical dwell time is 4 seconds at 250 °C.

A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.

Repairing soldered joints

Fix the component by first soldering two diagonally­opposite end leads. Use only a low voltage soldering iron
(less than 24 V) applied to the flat part of the lead. Contact
time must be limited to 10 seconds at up to 300 °C. When
using a dedicated tool, all other leads can be soldered in
one operation within 2 to 5 seconds between
270 and 320 °C.

Preheating is necessary to dry the paste and evaporate
the binding agent. Preheating duration: 45 minutes at
45 °C.

Wave soldering

Wave soldering is not recommended for QFP packages.
This is because of the likelihood of solder bridging due to
closely-spaced leads and the possibility of incomplete
solder penetration in multi-lead devices.

1997 Jul 09 28

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and

TDA5147CH

spindle motor drive combination chip

DEFINITIONS

Data sheet status

Objective specification This data sheet contains target or goal specifications for product development.
Preliminary specification This data sheet contains preliminary data; supplementary data may be published later.
Product specification This data sheet contains final product specifications.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the specification.

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.

1997 Jul 09 29

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and
spindle motor drive combination chip

NOTES

TDA5147CH

1997 Jul 09 30

Philips Semiconductors Preliminary specification

12 V Voice Coil Motor (VCM) driver and
spindle motor drive combination chip

NOTES

TDA5147CH

1997 Jul 09 31

Philips Semiconductors – a worldwide company

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Tel. [phone], Fax. [phone]
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TEL AVIV 61180, Tel. [phone], Fax. [phone]
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20124 MILANO, Tel. [phone], Fax. [phone]
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Tel. [phone], Fax. [phone]
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Middle East: see Italy

Netherlands: Postbus 90050, 5600 PB EINDHOVEN, Bldg. VB,

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New Zealand: 2 Wagener Place, C.P.O. Box 1041, AUCKLAND,

Tel. [phone], Fax. [phone]
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Tel. [phone], Fax. [phone]
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106 Valero St. Salcedo Village, P.O. Box 2108 MCC, MAKATI,
Metro MANILA, Tel. [phone], Fax. [phone]

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Romania: see Italy
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TAIPEI, Taiwan Tel. [phone], Fax. [phone]

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209/2 Sanpavuth-Bangna Road Prakanong, BANGKOK 10260,
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Ukraine: PHILIPS UKRAINE, 4 Patrice Lumumba str., Building B, Floor 7,
252042 KIEV, Tel. [phone], Fax. [phone]

United Kingdom: Philips Semiconductors Ltd., 276 Bath Road, Hayes,
MIDDLESEX UB3 5BX, Tel. [phone], Fax. [phone]

United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409,
Tel. [phone]

Uruguay: see South America
Vietnam: see Singapore
Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD,

Tel. [phone], Fax.[phone]

For all other countries apply to: Philips Semiconductors, Marketing & Sales Communications,
Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. [phone]

© Philips Electronics N.V. 1997 SCA55
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.

The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.

Internet: http://www.semiconductors.philips.com

Printed in The Netherlands 297027/1200/01/pp32 Date of release: 1997 Jul 09 Document order number: 9397 750 01425