Datasheet HA13557AFH Datasheet (HIT)

HA13557AFH

Combo (Spindle & VCM) Driver

ADE-207-234A (Z)

2nd. Edition

July 1997

Description

This COMBO Driver for HDD application consists of Sensorless Spindle Driver and BTL type VCM
Driver.

Bipolar Process is applied and a “Soft Switching Circuit” for less commutation noise and a “Booster
Circuit” for smaller Saturation Voltage of Output Transistor are also implemented.

Features

• Soft Switching Driver

• Small Surface Mount Package: FP-48T (QFP48 Pin)

• Low thermal resistance: 30°C/W with 4 layer multi glass-epoxy board

• Low output saturation voltage
 Spindle 1.44 V Typ (@1.8 A)
 VCM 1.0 V Typ (@1.0 A)

Functions

• 2.2 A Max/3-phase motor driver

• 1.5 A Max BTL VCM Driver

• Auto retract

• Soft Switching Matrix

• Start up circuit

• Booster

• Speed Discriminator

• Internal Protector (OTSD, LVI)

• POR

• Power monitor

HA13557AFH

Pin Arrangement

)

+

TAB

GND

VBST
VCMP
VCMN

BC2
BC1

GND

RS

RETON

RETPOW

Vpsv

LVI2

48 47 46 45 44 43 42 41 40 39 3738

1
2
3
4
5
6

GND

TAB

7

GND

8

W

9

RNF

CT

10
11
12

V

13 14 15 16 17 18 19 20 21 22 23 24

U

C-PUMP

R1

CLREF

Vpss

GND

TAB

GND

PCOMP

*NC : No internal connection

Please note that there is no isolation check between pin 34 and pin 35
at the testing of this IC.

(Top View)

OPIN(–)

VCTL

SS

V

LVI1

RESINH

OPIN(

COMM

DELAY

VREF1

36

COMPOUT

35

NC*

34

NC*

33

GAIN

32

VCMENAB

31

GND

TAB

30

GND

29

POR

28

SPNENAB

27

READY

26

CLOCK

25

CNTSEL

POLSEL

2

HA13557AFH

Pin Description

Pin Number Pin Name Function

1 VBST Boosted voltage output to realize the low output saturation voltage
2 VCMP Output terminal on VCM driver
3 VCMN Output terminal on VCM driver
4 BC2 To be attached the external capacitor for booster circuitry
5 BC1 ditto
6, TAB, 7 GND Ground pins
8 W W phase output terminal on spindle motor driver
9 RNF Sensing input for output current on spindle motor driver
10 PCOMP To be attached the external capacitor for phase compensation of spindle

motor driver
11 CT To be attached the center tap of the spindle motor for B-EMF sensing
12 V V phase output terminal on spindle motor driver
13 U U phase output terminal on spindle motor driver
14 C-PUMP To be attached the external integral constants for speed control of spindle

motor
15 CLREF Reference voltage input for current limiter of spindle motor driver
16 R1 To be attached the external resistor for setting up the oscillation frequency of

start-up circuitry and the gain of speed control loop of spindle motor driver
17 Vpss Power supply for spindle motor driver
18, TAB, 19 GND Ground pins
20 V
21 LVI1 Sensing input for power monitor circuitry
22 DELAY To be attached the external capacitor to generate the delay time for power on

23 COMM To be attached the external capacitor for setting up the oscillation frequency
24 POLSEL To be selected the input status corresponding to the pole number of spindle

25 CNTSEL To select the count Number of Speed Discriminator
26 CLOCK Master clock input for this IC
27 READY Output of speed lock detector for spindle motor
28 SPNENAB To select the status of spindle motor driver
29 POR Output of power on reset signal for HDD system
30, TAB, 31 GND Ground pins
32 VCMENAB To select the status of VCM driver
33 GAIN To select the Transfer conductance gm of VCM driver

SS

Power supply for small signal block

reset signal

motor

3

HA13557AFH

Pin Description (cont)

Pin Number Pin Name Function

34 NC No function
35 NC No function
36 COMPOUT Comparator output to detect the direction of output current on VCM driver
37 VREF1 Regulated voltage output to be used as reference of peripheral ICs
38 RESINH Used for inhibiting the restart function of the spindle motor driver after power

down
39 OPIN (+) Non inverted input of OP.Amp. to be used for filtering the signal on PWMOUT
40 VCTL OP.Amp. output, this signal is used as control signal for VCM driver output
41 OPIN (–) Inverted input of OP.Amp. to be used for filtering the signal on PWMOUT
42, TAB, 43 GND Ground pins
44 LVI2 Sensing input for power monitor circuitry
45 Vpsv Power supply for VCM driver
46 RETPOW Power supply for retract circuitry
47 RETON To be attached the base terminal of external transistor for retracting
48 RS Sensing input for output current on VCM driver

4

Block Diagram

HA13557AFH

RESINH

COMM

C103

C-PUMP

C2

C1

CLREF

R1b

SPNENAB

POLSEL
CLOCK

(5MHz Typ)

CNTSEL

READY

VCTL

OPIN(–)
OPIN(+)

Vref1

GAIN

VCM ENAB

C104

C105

R1

R1a

NC
NC

BC1

BC2

V

VSS (+5V)

V

SS

20 17

38

23

C102

B-EMF

AMP.

START-UP
CIRCUIT

SOFT
SWITCHING
MATRIX

COMMUTATION

LOGIC

14

15

CHARGE

PUMP

CURRENT
CONTROL

16
28
24

(D1)

SPEED DISCRI.

26

1/32

(CNT)

25
27

SPEED
READY

V

BST

40

–

41
39
37

34
35

+

OPAMP.

Vref1
(=4.6V)

OTSD

+

VCM

DRIVER

–

33
32

5
4
1

BST

BOOSTER

Vss
(+5V)

V

BST

Vss

21 44 22

LVI1

R101

POWER
MONITOR

LVI2

R103

Vps

R102 R104

Vps
(+12V)

POR
Delay

DELAY

C106

V

BST

Vpss

SPINDLE
DRIVER

RETRACT
DRIVER

P

N

COMPARATOR

Vps(+12V)

U

V

W

PCOMP

Vpsv

RETPOW

RETON

VCMP

VCMN

–
+

GND

TAB
6, 7, 18, 19, 30,
31, 42, 43

C101

CT

11

13

U

12

V

8

W

9

10
45

46

47

2

3

48

RS

COMP

36

OUT

R105

29

POR
(L:RESET)

D2

D3

D4

R

C110

C111

R112

Qret2

C
R

NF

Qret1

C112

X
X

Vss(+5V)

C109

R113

R109

R

S

R

L

R111

R110

D1

5

HA13557AFH

Truth Table

Table 1 Truth Table (1)

SPNENAB Spindle Driver

HON
Open Cut off
L Braking

Table 2 Truth Table (2)

VCMENAB VCM Driver

HON
L Cut off

Table 3 Truth Table (3)

OTSD Spindle Driver VCM Driver Retract Driver POR

not Active See table 1 See table 2 Cut off X
Active Cut off Cut off ON L

Table 4 Truth Table (4)

POLSEL (D1) Comment

H — Test Mode
Open 1/12 for 8 poles motor
L 1/18 for 12 poles motor

Table 5 Truth Table (5)

Rotation Speed

CNTSEL CNT

H 2605 3,600 rpm
Open 2084 4,500 rpm
L 1736 5,400 rpm

(at CLOCK = 5 MHz)

6

HA13557AFH

Table 6 Truth Table (6)

RESINH Spindle Driver

H Inhibiting the restart after power down
L Not inhibiting the restart after power down

Table 7 Truth Table (7)

GAIN VCM Driver

H High Gain Mode
L Low Gain Mode

7

HA13557AFH

Timing Chart

1. Power on reset (1)

Vsd

Vps and
V

SS

Vhys

t

POR

1.0V

MAX

0

Note: 1. How to determine the threshold voltage Vsd and the delay time t

external components table.

t

DLY

both are shown in the

DLY

t

8

2. Power on reset (2)

HA13557AFH

VPS or
V

SS

POR

Spindle
Driver

VCM
Driver

Retract
Driver

Note: 2. Retract driver need B-EMF voltage or another power supply.

ON
OFF

ON
OFF

t

por

t

por

<1µs <1µs

Retract

9

HA13557AFH

,

3. Motor start-up seaquence

(a) Timing chart of start-up seaquence

SPNENAB

Open

No

Rotation
Speed

Synchronous
Driving

Driving by
B-EMF
sensing

0

Internal
READY

READY
(Pin 27)

Switching

t

delay

2

*

Note *1. Speed lock detection range ∆No is as follows.

∆No=1.2% when CNTSEL=H

=1.5% when CNTSEL=Open
=1.8% when CNTSEL=L

*2. READY output goes to High, if the rotation speed error keeps to be less than
∆No longer time than tdelay.

tdelay= [ms]

250 • 10
fclk [Hz]

7

*3. The turning point of driving mode from switching synchronize to the turning
point of READY output from Low to High.

Soft Switching*

3

t

No+∆No*

No–∆No*

1

1

(b) Retry circuitry for misstart-up

Motor

on

Synchronous

driving

Driving by
B-EMF
sensing

(not stop)

Motor

stop

detector

(Motor stop)

(Motor off)

The HA13557FH has the motor stop detector as shown hatching block. This function is monitoring
the situation of the motor while the motor is running by B-EMF sensing. If the motor will be caused a
misstarting up, the motor will be automatically restarted within 200 ms after the motor stopped. This
function increase the reliability for the motor starting up.

10

4. Braking & Shut down the Spindle Driver

HA13557AFH

Open

Open

SPNENAB

> 20µs

ON CUT OFF BRAKING CUT OFF

Note: The SPNENAB should be selected the open state after braking to reduce the supply current from

Vps and VSS.

5. Start-up of the Spindle motor

Open

SPNENAB

COMM

GND

SOURCE

I

U

0

SINK

t

(see External Components Table)

COMM

Vth1

Vth2

SOURCE

I

V

SOURCE

I

W

0

SINK

0

SINK

COMM4TCOMM4TCOMM4TCOMM4TCOMM4TCOMM6TCOMM8TCOMM

2T

not detecting the B-EMF detecting the B-EMF

COMM

10T

COMM

12T

COMM

14T

COMM

16T

Synchronous Driving for motor start up

COMM

Driving by
B-EMF sensing

16T

11

HA13557AFH

6. Acceleration and Running the spindle motor

+

U

BEMF

V

BEMF

W

BEMF

(1) Acceleration(switching mode)

SOURCE

Iu

SOURCE

Iv

SOURCE

Iw

0
–

+
0

–
+
0

–

0

SINK

0

SINK

0

SINK

(2) Running (soft switching mode)

SOURCE

Iu

SOURCE

Iv

SOURCE

Iw

0

SINK

0

SINK

0

SINK

12

Application

PWMIN

V

SS

(+5V)

R101

R102

R8

R7

C104

C105

C103

C2 R2

R3

R4

R105

R5

C5

C3

C102

R1aR1b

C1

C106

5

BC1

4

BC2

1

VBST

23

COMM

15

CLREF

16

14

24
25
27
26
28
32
33
38

37
41

HA13557AFH

R1
C-PUMP

POLSEL
CNTSEL
READY
CLOCK
SPNENAB
VCMENAB
GAIN
RESINH

VREF1
OPIN(–)

R6

40

VCTL

39

OPIN(+)

C4

36

COMPOUT

20

V

SS

29

POR

22

DELAY

GND

6 7 18 19 30 31 42 43 TAB

Vpss

CT

W

RNF

PCOMP

Vpsv

RETPOW

RETON

VCMP

VCMN

RS

LVl2
LVl1

HA13557AFH

V

PS

(+12V)

17

C101

11

D2

13

U

12

V

D3

8

C
R

R

C109

Qret1

X

X

NF

D4

R109

C112

R113

Qret3

D1

R

S

R103

R104

R111

RL

9

10

45

46

47

2

3

48
44

21

C110

C111

R112

Qret2

R110

13

HA13557AFH

External Components

Parts No. Recommended Value Purpose Note

R1a (R1a + R1b) ≥ 10 kΩ V/I converter 1, 4, 6
R1b (R1a + R1b) ≥ 10 kΩ
R2 — Integral constant 3
R3 to R8 — PWM filter 9
R101, R102 — Setting of LVI1 voltage 7
R103, R104 — Setting of LVI2 voltage 7
R105 5.6 kΩ Pull up
R109, R110 (R109 + R110) ≥ 10 kΩ Retout voltage adjust
R111, R112, R113 — Retract Driver
RS 1.0 Ω Current sensing for VCM Driver 10
Rnf — Current sensing for Spindle Driver 1
R

X

C1, C2 — Integral constant 3
C3 to C6 — PWM filter 9
C

X

C101 ≥ 0.1 µF Power supply by passing
C102 ≥ 0.1 µF Power supply by passing
C103 — Oscillation for start-up 6
C104 0.22 µF for booster
C105 2.2 µF for booster
C106 ≤ 0.33 µF Delay for POR 8
C109 ≥ 0.1 µF Power supply by passing
C110, C111 0.22 µF Phase compensation
C112 — Phase compensation for Retract
Qret1, Qret2, Qret3 — Retract Driver 12
D1 TBD Prevent of counter current
D2, D3, D4 Si • Diode for rectification

— Reduction for gain peaking 11

— Reduction for gain peaking 11

14

HA13557AFH

Notes: 1. Output maximum current on spindle motor driver Ispnmax is determined by following equation.

Ispnmax = [A]•

R1b

R1a + R1b

V

R1

R

NF

(1)

where, V

: Reference Voltage on Pin 16 [V] (= 1.17)

R1

2. Input clock frequency fclk on pin 26 is determined by following equation.

4

fclk = • N

5

where, N

• P • D1 • (CNT – 0.5) [Hz]

O

: Standard rotation speed [rpm]

O

P: Number of pole
D1: Dividing ratio on divider 1

D1 = 1/12 (when Pin 24 = Open) for 8 pole motor

= 1/18 (when Pin 24 = Low) for 12 pole motor

CNT:Count number on speed discriminator

CNT= 2605 (when Pin 25 = High)

= 2084 (when Pin 25 = Open)
= 1736 (when Pin 25 = Low)

3. Integral constants R2, C1 and C2 can be designed as follows.

1

ω

= [rad/s]• 2 • π •

O

10

R2 = [Ω]•

C1 = [F]

1

9.55

10 • ω

N

O

60

Rnf • J • ωO • NO • (R1a + R1b)

V

• KT • Gctl

R1

1

• R2

O

(2)

(3)

(4)

(5)

C2 = 10 • C1 [F]

where, J: Moment of inertia [kg•cm•s

K

: Torque constant [kg•cm/A]

T

2

]

(6)

Gctl: Current control amp gain from pin 14 to pin 9 (= 0.794)

4. It is notice that rotation speed error Nerror is caused by leak current Icer2 on pin 14 and this
error depend on R1a and R1b as following equation.

Nerror = Icer2 • [%]• 100

(R1a + R1b)

VR1

(7)

where, Icer2: Ieak current on pin 14 [A]

5. Oscillation period t

on pin 23 which period determine the start up characteristics, is should be

COMM

chosen as following equation.

t

COMM

1

= • [s]to

8

P • K

• Ispnmax

T

J

1

•

4

P • K

J

• Ispnmax

T

(8)

15

HA13557AFH

6. The capacitor C103 on pin 23 can be determined by t

C103 = • [F]

1
4

where, Vth

Vth

VR1

R1a + R1b

: Threshold voltage on start up circuit [V] (= 2.0)

H

: Threshold voltage on start up circuit [V] (= 0.5)

L

t

COMM

•
VthH – Vth

L

and following equation.

COMM

(9)

7. LVI operatig voltage Vsd1, Vsd2 and its hysteresis voltage Vhys1, Vhys2 can be determined by
following equations.

for V

SS

Vsd1 = 1 + • Vth4 [V]

Vhys1 = 1 + • Vhyspm [V]

R101
R102

R101
R102

(10)

(11)

for Vps

Vsd2 = 1 + • Vth3 [V]

Vhys2 = 1 + • Vhyspm [V]

R103
R104

R103
R104

(12)

(13)

where, Vth3, Vth4: Threshold voltage on pin 21 and pin 44 [V] (= 1.39)

Vhyspm: Hysteresis voltage on pin 21 and pin 44 [mV] (= 40)
Shut down voltage Vsd1, Vsd2 can be designed by the following range.
Vsd1 ≥ 4.25 [V], Vsd2 ≥ 10 [V]

8. The delay time t

C106 • Vth5

t

= [s]

DLY

of POR for power on reset is determined as follows.

DLY

I

CH3

(14)

16

where, Vth5: Threshold voltage on pin 22 [V] (= 1.4)

I

: Charge current on pin 22 [µA] (= 6)

CH3

9. The differential voltage (Vctl – V

) using for control of VCM driver depend on PWMDAC input

REF1

PWMIN as follows.

Vctl – V

where, D

REF1

– 50

= 2 • V

PWM

H

FLT(S)

REF1

: Duty cycle on PWMIN [%]

: Normalized transfer function from PWMIN to pin 40 (Vctl) as shown in

PWM

•
100

R6

•• H
R5

FLT

(s)

D

equation (17)

To be satisfied with above equation (15), it is notice that the ratio of R6 to R7 must be choosen

as shown below.

R8
R7

= 2 •

R6
R5

1

•
R6

1 –

R5

(15)

(16)

HA13557AFH

H

(s)

FLT

R6
R5

+

ωn

1

R6
R5

2

s

=

1 + s • C5 • R// – C3 • (R// + R3) • + C4 • (R// + R3 + R4)

+ s2 • C5 • C4 • R// • (R3 + R4) – C5 • C3 • R// • R3 • + C3 • C4 • R4 • (R// + R3)

3

• C3 • C4 • C5 • R// • R3 • R4

+ s

R7 • R8

R// =

where,

R7 + R8

If you choose the R// << R3, then equation (17) can be simplified as following equation.

H

(s) =

FLT

1 +

1

•

s

1 +2 • ζ •

ω

O

1

s

ωn

where,

=

O

1

C5 • R//

ω

(17)

(18)

(19)

(20)

ωn =

1

C3 • C4 • R3 • R4

C4 • (R3 + R4) – C3 • R3 •

ζ =

R6
R5

2 • C3 • C4 • R3 • R4

10.The relationship between the output current Ivcm and the input voltage (Vctl – V
driver is as follows.

Ivcm(s) = Vctl – V

REF1

• Kvcm •

1

Rs

• Hvcm(s)

where, Vctl: Input control voltage for VCM driver on pin 40 [V]

: Reference voltage on pin 37 [V] (= 4.6)

V

REF1

Kvcm: DC gain of VCM driver

(= 1.74 for High gain mode)
(= 0.44 for Low gain mode)

Hvcm(s): Transfer function of VCM driver as shown following equation

VCM

1

ω

s

VCM

2

s

•

ω

VCM

+

Hvcm(s) =

1 + 2 • ζ

where,

ω

VCM

= ωP•

Rs

Lm

) on VCM

REF1

(21)

(22)

(23)

(24)

(25)

17

HA13557AFH

q

)

ζ

= •1 +

VCM

1

1
2

R
Rs

L

•

ω

Rs

•
Lm

P

(26)

where, ωp: Bandwidth of internal power amplifiers for VCM driver [rad/s]

6

(= 3•π•10

)
Lm: Inductance of the VCM coil [H]
R

: Resistance of the VCM coil [Ω]

L

and from above equations the -3 dB bandwidth f

ω

f

VCMC

VCM

= • 1 – 2 • ζ

2 • π

VCM

2

+ 2 • ζ

of VCM driver is as following equation.

VCMC

2

– 12+ 1

VCM

(27)

11.The frequency response of VCM driver maybe have a gain peaking because of the resonation of
the motor coil impedance. If you want to tune up for this characteristics, you can reduce the
peaking by additional snubber circuit R

and CX as follows.

X

BTL Driver

+
–

R3

N

R

X

Coil

C

X

RS

R

S

1/2 V

PS

R3

–
+

P

Figure 1 VCM Driver Block Diagram

18

20

10

Normal

0

I

O

(dB)

–10

= 0.22µF

C

X

RX = 560Ω

–20

100 1k 10k 100k

uency (Hz

Fre

(for example) RL = 14.7 Ω, RS = 1 Ω, L = 1.7 mH, Gain = L

12.The Qret3 collector voltage Vret is determined by

Vret = VRT (

.

Iret =

.

R109
R110

Vret – V

+ 1)

(D1) – Vsat

F

RL + Rs

(Vretpow ≥ VRT ( + 1))

VL

where, Vretpow: Applied voltage on pin 46 [V]

: Reference voltage of Retract (toward voltage of Qret2) [V]

V

RT

V

(D1): Foward voltage of D1 [V]

F

Vsat

: Saturation voltage on pin 3 at retracting [V]

VL

(See electrical characteristics)

HA13557AFH

R109
R110

(28)

19

HA13557AFH

10

Absolute Maximum Ratings (Ta = 25°C)

Item Symbol Rating Unit Notes

Power supply voltage Vps +15 V 1
Signal supply voltage V
Input voltage V

SS

IN

Output current-Spindle Iospn (Peak) 2.2 A

Iospn (DC) 1.8 A

Output current-VCM Iovcm (Peak) 1.5 A

Iovcm (DC) 1.0 A

Power dissipation P

T

Junction temperature Tj +150 °C 5, 6
Storage temperature Tstg –55 to +125 °C

Notes: 1. Operating voltage range is 10.2 V to 13.8 V.

2. Operating voltage range is 4.25 V to 5.75 V.

3. Applied to Pin 24, 25, 26, 28, 32, 33 and pin 38

4. Operating junction temperature range is Tjop = 0°C to +125°C.

5. ASO of upper and lower power transistor are shown below.

Operating locus must be within the ASO.

6. The OTSD (Over Temperature Shut Down) function is built in this IC to avoid same damages by
over heat of this chip. However, please note that if the junction temperature of this IC becomes
higher than the operating maximum junction temperature (Tjopmax = 125°C), the reliability of this
IC often goes down.

7. Thermal resistance: θj-a ≤ 30°C/W with 4 layer multi glass-epoxy board

+7 V 2
V

SS

V3

5W4

2.2

1

IC (A)

0.1
1 10 100

VCE (V)

t=10ms
t=50ms
t=100ms

15

Figure 2 ASO of Output Stages (Spindle)

20

10

1.5
1

IC (A)

HA13557AFH

t=10ms
t=50ms
t=100ms

0.1

1 10 100

15

VCE (V)

Figure 3 ASO of Output Stages (VCM)

21

HA13557AFH

Electrical Characteristics (Ta = 25°C, Vps = 12 V, VSS = 5 V)

Item Symbol Min Typ Max Unit Test Conditions

Supply
current

Logic input 1
(GAIN)
(RESINH)

Logic input 2
(CLOCK)

Logic input 3
(VCMENAB)

Logic input 4
(SPNENB)

for V

SS

I

SS0

I

SS1

for Vps Ips0 — 1.7 2.2 mA SPNENAB = Open

Ips1 — 19 24 mA SPNENAB = H

Input low voltage V

Input high

IL1

V

IH1

voltage
Input low current I
Input high

IL1

I

IH1

current
Input low voltage V

Input high

IL2

V

IH2

voltage
Input low current I
Input high

IL2

I

IH2

current
Input low voltage V

Input high

IL3

V

IH3

voltage
Input low current I
Input high

IL3

I

IH3

current
Input low voltage V

Input middle

IL4

V

IM4

voltage
Input high

V

IH4

voltage

— 5.8 7.0 mA SPNENAB = Open

VCMENAB = L

— 21 27 mA SPNENAB = H

VCMENAB = H

VCMENAB = L

VCMENAB = H

— — 0.8 V 33, 38

2.0 — — V

——±10 µA Input = GND
——±10 µA Input = 5.0 V

— — 0.8 V 26

3.5 — — V

— –180 –260 µA Input = GND
— 230 330 µA Input = 5.0 V

— — 0.8 V 32

2.0 — — V

——±10 µA Input = GND
— — 330 µA Input = 5.0 V

— — 1.0 V 28

2.0 — 3.1 V

3.9 — — V

Applicable
Pins Note

20

20

17, 45

17, 45

22

HA13557AFH

C

Electrical Characteristics (Ta = 25°C, Vps = 12 V, VSS = 5 V) (cont)

Applicable

Item Symbol Min Typ Max Unit Test Conditions

Logic input 4

Input low current I

IL4

–75 –105 –150 µA Input = GND 28

(SPNENB)

Input high

I

IH4

75 105 150 µA Input = 5.0V

current
Input dead

I

DEAD

±10 — — µA

current

Logic input 5

Input low voltage V

IL5

— — 1.0 V 24, 25
(POLSEL)
(CONTSEL)

Input middle

V

IM5

2.0 — 3.1 V

voltage
Input high

V

IH5

3.9 — — V

voltage
Input low current I
Input high

IL5

I

IH5

–38 –53 –75 µA Input = GND

38 53 75 µA Input = 5.0V

current

Spindle
driver

Total saturation
voltage

Vsatspn — 1.44 2.0 V Ispn = 1.8A 8, 12, 13

— — 0.75 V Ispn = 0.6A

Saturation at

Vbreak — — 0.7 V Ibreak = 0.6A

braking
Leak current Icer1 — — ±2.0 mA SPNENAB=Open
Current limiter

reference

V

OCL

430 480 530 mV V

R

NF

= 500mV

LREF

= 1.0Ω

voltage
Control amp

Gctl — –2 ±2dBRNF = 1.0Ω 9, 14

gain
Clamp diode

Vdf 1.6 1.9 2.2 V Idf = 0.5A 8, 12, 13

forward voltage
B-EMF amp. Input sensitivity Vmin 60 90 125 mVp-p 8, 12, 13 1
Charge

pump

Reference

voltage

Charge current I

Discharge

VR1 1.06 1.17 1.28 V R1a+R1b = 24kΩ 14, 16

CH1

I

DIS1

40 45 50 µA C – PUMP = 1.0V
–40 –45 –50 µA

current

Leak current Icer2 — — ±50 nA

Pins Note

9

23

HA13557AFH

SS

C

S

S

Electrical Characteristics (Ta = 25°C, Vps = 12 V, VSS = 5 V) (cont)

Item Symbol Min Typ Max Unit Test Conditions

Speed discri Operating

frequency
Start up

circuit

Threshold

voltage

Charge current I

Discharge

current
READY Output high

voltage

Output low

voltage
VCM driver Total saturation

voltage

Output leak

current

Total output

offset voltage

Output

quiescent

voltage

Total gain

bandwidth

Transfer gain gm (H) — 1.74 ±5% A/V Higain-mode

fclk — — 8.0 MHz 26

Vth

Vth

CH2

1.6 1.8 2.0 V 16, 23

H

0.3 0.5 0.7 V

L

21 23 26 µA R1a + R1b = 24

kΩ

I

DIS2

Vohr V

–19 –22 –25 µA COMM = 1 V

—V

SS

VI

= –1 mA 27

O

– 0.4

Volr — — 0.4 V IO = 1 mA

Vsatvcm — 1.0 1.38 V Ivcm = 1.0 A 2, 3

— 0.5 0.69 V Ivcm = 0.5 A

Icer3 — — ±2.0 mA Vce = 15 V

Voff(H) — — ±20 mV V

TL

V

REF

= OP (–)

= OP (+)
Voff(L) — — ±10 mV
Vqvcm 5.6 6.0 6.4 V RL = 14 Ω,

R

= 1.0 Ω

S

B — 26 — kHz RS = 1.0 Ω,

R

= 28 Ω

L

— 50 — kHz RS = 1.0 Ω,

R

= 14 Ω

L

R

= 1.0 Ω,

R

= 14 Ω

L

gm (L) — 0.44 ±5% A/V Logain-mode

R

= 1.0 Ω,

R

= 14 Ω

L

Applicable
Pins Note

2, 48

2, 3

2, 3 1

2, 34, 48

24

HA13557AFH

SS

Electrical Characteristics (Ta = 25°C, Vps = 12 V, VSS = 5 V) (cont)

Applicable

Item Symbol Min Typ Max Unit Test Conditions

Retract

Retpow voltage Vretpow 0.8 — — V Ireton = 0.1 mA 46

driver

Retout sink

Ireton 5 8 — mA Vretpow = 4.0 V

current
Output leak

current
Low side

Icer4 — — ±10 µA Vreton = 15 V,

Vretpow = 15 V

VsatVL 0.2 0.33 0.45 V Iret = 0.1 A 3
saturation
voltage

OP Amp Input current Iinop — — ±500 nA 39, 41

Input offset

Vosop — — (±7) mV 1
voltage

Common mode
input voltage

Vcmop 0 — Vps

– 0.2

V

range
Output high

voltage
Output low

Vohop Vps

— — V Iout = 1.0 mA 40

– 1.3

Volop — — 1.1 V Iout = 1.0 mA
voltage

Comparator Input sensitivity Vmin2 ±9 0 — mV 2, 3, 36 1

Output low

Volcp — — 0.4 V IO = 1 mA 36
voltage

Output high
voltage

Vohcp V

– 1.8

—V

SS

VI

= 1 mA

O

Vref1 Output voltage Vref1 — 4.0 ±3% V IO = 20 mA 37

Output

Ro1 — — 5.0 Ω IO = 20 mA
resistance

Power
monitor

Threshold
voltage

Vth3 –2% 1.39 +3% V VSS = 5 V 44 2

Hysteresis Vhyspm1 25 40 55 mV VSS = 5 V
Threshold

Vth4 –2% 1.38 +3% V VSS = 4 V 21 2
voltage

Hysteresis Vhyspm2 25 40 55 mV VSS = 4 V

Pins Note

37

25

HA13557AFH

1.42

Electrical Characteristics (Ta = 25°C, Vps = 12 V, VSS = 5 V) (cont)

Item Symbol Min Typ Max Unit Test Conditions

POR Output low

voltage

Output leak
current

Threshold
voltage

Charge current I
Discharge

current

OTSD Operating

temperature
Hysteresis Thys — 25 — °C1

Notes: 1. Design guide only.

2. Variations of threshold voltage Vth3 and Vth4 depending on the power supply V
figure 4.

V

OL2

V

OL3

Icer5 — — ±10 µA Vpor = 7 V

Vth5 — 1.4 ±5% V 22

CH3

I

DIS3

Tsd 125 150 — °C1

— — 0.4 V IO = 1 mA 29

— — 0.4 V IO = 1 mA

V

= Vps = 1.0 V

SS

—6 ±25% µA
40——mA

Applicable
Pins Note

are shown in

SS

1.41

1.40
Test condition of Vth3

1.39

1.38

1.37

1.36

1.35

Threshold voltage Vth3, Vth4 (V)

1.34

1.33

3.8

Test condition of Vth4

4.0 5.04.2 4.4 4.6 4.8 5.2 5.4

Power supply V

Figure 4

SS

(V)

5.6 5.8

6.0

26

Package Dimensions

17.2 ± 0.2

36

37

17.2 ± 0.2
48

1

2.9252.925

0.3 ± 0.05

0.825

14

4.85

0.13

0.1

25

2.425

M

12

13

24

0.65

2.425

2.7

0.1 ± 0.1

4.85

2.9252.925

3.05 Max

0.17 ± 0.05

0.825

Hitachi code

EIAJ code

JEDEC code

HA13557AFH

Unit: mm

1.6

0 – 10°

0.8 ± 0.3

FP-48T

—
—

27

Cautions

1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,
copyright, trademark, or other intellectual property rights for information contained in this document.
Hitachi bears no responsibility for problems that may arise with third party’s rights, including
intellectual property rights, in connection with use of the information contained in this document.

2. Products and product specifications may be subject to change without notice. Confirm that you have
received the latest product standards or specifications before final design, purchase or use.

3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,
contact Hitachi’s sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
traffic, safety equipment or medical equipment for life support.

4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly
for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as fail­safes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
consequential damage due to operation of the Hitachi product.

5. This product is not designed to be radiation resistant.

6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without
written approval from Hitachi.

7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor
products.

Hitachi, Ltd.

Semiconductor & Integrated Circuits.
Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
Tel: Tokyo [phone] Fax: [phone]

URL NorthAmerica : http:semiconductor.hitachi.com/

For further information write to:

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(America) Inc.
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San Jose,CA 95134
Tel: <1> [phone]
Fax: <1>[phone]

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Electronic components Group
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Germany
Tel: <49> (89) 9 9180-0
Fax: <49> (89) 9 29 30 00

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Electronic Components Group.
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Tel: <44> (1628) 585000
Fax: <44> (1628) 778322

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Tel: [phone]
Fax: [phone]

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Taipei Branch Office
3F, Hung Kuo Building. No.167,
Tun-Hwa North Road, Taipei (105)
Tel: <886> (2) 2718-3666
Fax: <886> (2) 2718-8180

Copyright ' Hitachi, Ltd., 1999. All rights reserved. Printed in Japan.

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7/F., North Tower, World Finance Centre,
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