Philips TDA5140A, TDA5140AT Datasheet

INTEGRATED CIRCUITS

DATA SH EET

TDA5140A

Brushless DC motor drive circuit

Product speciﬁcation Supersedes data of March 1992 File under Integrated Circuits, IC02

Philips Semiconductors

April 1994

Philips Semiconductors Product speciﬁcation

Brushless DC motor drive circuit TDA5140A

FEATURES

• Full-wave commutation (using push/pull drivers at the output stages) without position sensors

• Built-in start-up circuitry

• Three push-pull outputs:

– 0.8 A output current (typ.)

APPLICATIONS

• VCR

• Laser beam printer

• Fax machine

• Blower

• Automotive.

– low saturation voltage – built-in current limiter

• Thermal protection

• Flyback diodes

• Tacho output without extra sensor

• Position pulse stage for phase-locked-loop control

GENERAL DESCRIPTION

The TDA5140A is a bipolar integrated circuit used to drive 3-phase brushless DC motors in full-wave mode. The device is sensorless (saving of 3 hall-sensors) using the back-EMF sensing technique to sense the rotor position.

• Transconductance amplifier for an external control transistor.

QUICK REFERENCE DATA Measured over full voltage and temperature range.

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V V

P VMOT

supply voltage note 1 4 − 18 V input voltage to the output

note 2 1.7 − 16 V

driver stages V I

DO

LIM

drop-out output voltage IO = 100 mA − 0.93 1.05 V

current limiting V

= 10 V; RO= 3.9 Ω 0.7 0.8 1 A

VMOT

Notes

1. An unstabilized supply can be used.

2. V

= VP; +AMP IN = −AMP IN = 0 V; all outputs IO = 0 mA.

VMOT

ORDERING INFORMATION

PACKAGE

EXTENDED TYPE NUMBER

PINS PIN POSITION MATERIAL CODE

TDA5140A 18 DIL plastic SOT102 TDA5140AT 20 SOL plastic SOT163A

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Philips Semiconductors Product speciﬁcation

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Brushless DC motor drive circuit TDA5140A

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Fig.1 Block diagram (SOT102; DIL18).

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Philips Semiconductors Product speciﬁcation

Brushless DC motor drive circuit TDA5140A

PINNING

SYMBOL

MOT1 1 1 driver output 1 TEST 2 2 test input/output n.c. 3 not connected MOT2 3 4 driver output 2 VMOT 4 5 input voltage for the output driver stages PG IN 5 6 position generator: input from the position detector sensor to the position

PG/FG 6 7 position generator/frequency generator: output of the rotation speed and position

GND2 7 8 ground supply return for control circuits V

P

CAP-CD 9 10 external capacitor connection for adaptive communication delay timing CAP-DC 10 11 external capacitor connection for adaptive communication delay timing copy CAP-ST 11 12 external capacitor connection for start-up oscillator CAP-TI 12 13 external capacitor connection for timing +AMP IN 13 14 non-inverting input of the transconductance ampliﬁer

−AMP IN 14 15 inverting input of the transconductance ampliﬁer AMP OUT 15 16 transconductance ampliﬁer output (open collector) MOT3 16 17 driver output 3 n.c. − 18 not connected MOT0 17 19 input from the star point of the motor coils GND1 18 20 ground (0 V) motor supply return for output stages

DIL18

8 9 positive supply voltage

SO20

DESCRIPTION

detector stage (optional); only if an external position coil is used

detector stages (open collector digital output, negative-going edge is valid)

April 1994 4

Philips Semiconductors Product speciﬁcation

Brushless DC motor drive circuit TDA5140A

Fig.2 Pin configuration (SOT102; DIL18). Fig.3 Pin configuration (SOT163A; SO20L).

FUNCTIONAL DESCRIPTION

The TDA5140A offers a sensorless three phase motor drive function. It is unique in its combination of sensorless motor drive and full-wave drive. The TDA5140A offers protected outputs capable of handling high currents and can be used with star or delta connected motors. It can easily be adapted for different motors and applications. The TDA5140A offers the following features:

• Sensorless commutation by using the motor EMF.

• Built-in start-up circuit.

• Optimum commutation, independent of motor type or

motor loading.

• Built-in flyback diodes.

• Three phase full-wave drive.

• High output current (0.8 A).

• Outputs protected by current limiting and thermal

protection of each output transistor.

• Low current consumption by adaptive base-drive.

• Accurate frequency generator (FG) by using the

motor EMF.

• Amplifier for external position generator (PG) signal.

• Suitable for use with a wide tolerance, external PG

sensor.

• Built-in multiplexer that combines the internal FG and external PG signals on one pin for easy use with a controlling microprocessor.

• Uncommitted operational transconductance amplifier (OTA), with a high output current, for use as a control amplifier.

April 1994 5

Philips Semiconductors Product speciﬁcation

Brushless DC motor drive circuit TDA5140A

LIMITING VALUES

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

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

V

P

V

I

V

VMOT

V

O

V

I

T

stg

T

amb

P

tot

V

es

supply voltage − 18 V input voltage; all pins except

VI< 18 V −0.3 VP + 0.5 V

VMOT VMOT input voltage −0.5 17 V output voltage

AMP OUT and PG/FG GND V MOT1, MOT2 and MOT3 −1V

input voltage CAP-ST, CAP-TI,

− 2.5 V

P VMOT

+ V

DHF

V V

CAP-CD and CAP-DC storage temperature −55 +150 °C operating ambient temperature 0 +70 °C total power dissipation see Figs 4 and 5 −− W electrostatic handling see “Handling” − 500 V

o

T ( C)

amb

MBD535

P

(W)

tot

2.28

1.05

3

2

0

50

0 200

50 100 150

70

Fig.4 Power derating curve (SOT102; DIL18).

HANDLING

Every pin withstands the ESD test in accordance with

“MIL-STD-883C class 2”

3 pulses + and 3 pulses − on each pin referenced to ground.

MBD536

o

T ( C)

amb

P (W)

1.38

3

tot

2

1

0

50

0 200

50 100 150

70

Fig.5 Power derating curve (SOT163A; SO20L).

. Method 3015 (HBM 1500 Ω, 100 pF)

April 1994 6

Philips Semiconductors Product speciﬁcation

Brushless DC motor drive circuit TDA5140A

CHARACTERISTICS

V

= 14.5 V; T

P

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply

V

P

I

P

V

VMOT

Thermal protection

T

SD

∆T reduction in temperature before

=25°C; unless otherwise specified.

amb

supply voltage note 1 4 − 18 V supply current note 2 − 3.7 5 mA input voltage to the output driver

see Fig.1 1.7 − 16 V

stages

local temperature at

130 140 150 °C temperature sensor causing shut-down

after shut-down − T

− 30 − K

SD

switch-on

MOT0; centre tap

V I

I

V ∆V

I

CSW

input voltage −0.5 − V input bias current 0.5 V < VI< V comparator switching level note 3 ±20 ±30 ±40 mV variation in comparator

switching levels

V

hys

comparator input hysteresis − 75 −µV

MOT1, MOT2 and MOT3

V

∆V

DO

OL

drop-out output voltage IO = 100 mA − 0.93 1.05 V

variation in saturation voltage between lower transistors

∆V

OH

variation in saturation voltage between upper transistors

I

LIM

V

DHF

V

DLF

I

DM

current limiting V diode forward voltage (diode DH)IO = −500 mA; notes 4

diode forward voltage (diode DL)IO = 500 mA; notes 4 and

peak diode current note 5 −− 1A

+AMP IN and −AMP IN

V

I

input voltage −0.3 − VP− 1.7 V differential mode voltage without

'latch-up'

I

b

C

I

V

offset

input bias current −− 650 nA input capacitance − 4 − pF input offset voltage −− 10 mV

V

− 1.5 V −10 − 0 µA

VMOT

−3 0 +3 mV

I

= 500 mA − 1.65 1.80 V

O

IO = 100 mA −− 180 mV

IO = −100 mA −− 180 mV

= 10 V; RO= 6.8 Ω 0.7 0.8 1 A

VMOT

−− 1.5 V

and 5; see Fig.1

−1.5 −−V

5; see Fig.1

−− ±V

P

V

April 1994 7

Philips Semiconductors Product speciﬁcation

Brushless DC motor drive circuit TDA5140A

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

AMP OUT (open collector)

I

V

sat

V

O

SR slew rate R G

tr

PG IN

V

I

b

R

I

V

CWS

V

hys

PG/FG (open collector)

V

OL

V

OH(max)

t

THL

δ duty factor − 50 − % t

PL

CAP-ST

I

sink

I

source

V

SWL

V

SWH

CAP-TI

I

sink

I

source

V

SWL

V

SWM

V

SWH

output sink current 40 −−mA saturation voltage II = 40 mA − 1.5 2.1 V output voltage −0.5 − +18 V

= 330 Ω; CL = 50 pF − 60 − mA/µs

L

transfer gain 0.3 −−S

input voltage −0.3 − +5 V input bias current −− 650 nA input resistance 5 − 30 kΩ comparator switching level 86 − 107 mV comparator input hysteresis −±8− mV

LOW level output voltage IO = 1.6 mA −− 0.4 V maximum HIGH level output

V

P

−−V

voltage HIGH-to-LOW transition time CL = 50 pF; RL = 10 kΩ− 0.5 −µs ratio of PG/FG frequency and

− 1 : 2 −

commutation frequency

pulse width LOW after a PG IN pulse 5 7 18 µs

output sink current 1.5 2.0 2.5 µA output source current −2.5 −2.0 −1.5 µA LOW level switching voltage − 0.20 − V HIGH level switching voltage − 2.20 − V

output sink current − 28 −µA output source current 0.05 V < V

0.3V<V

CAP-TI

< 0.3 V −−57 −µA

CAP-TI

< 2.2 V −−5−µA LOW level switching voltage − 50 − mV MIDDLE level switching voltage − 0.30 − V HIGH level switching voltage − 2.20 − V

April 1994 8