April 1994

4

Philips Semiconductors

Product specification

Brushless DC motor drive circuit

TDA5140A

PINNING

SYMBOL

PIN

DIL18

PIN

SO20

DESCRIPTION

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

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

PG/FG

6

7

position generator/frequency generator: output of the rotation speed and position

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

GND2

7

8

ground supply return for control circuits

8

9

positive supply voltage

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