BA6901F

Motor driver ICs

2/10

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Block diagram

1

2

3

4

5

6

7

8

CR

HO

AL

ALB

PWM

LD

CNF

GND

16

15

14

13

12

11

10

9

TOUT

A2

A1

CL

CS

H

−

H

+

+

−

+

−

REG

A2

A1

PWM

+

−

LOCK

DETECTION

AUTOMATIC

RESTART

&

!

Pin descriptions

Pin name

Function

Pin No.

1

2

3

4

5

6

7

8

CR

HO

AL

LD

GND

GROUND terminal

ALB

PWM input terminal (H,OPEN : output ON, L : output OFF)

Hall signal output terminal

Alarm output terminal

Alarm output terminal (Reverse signal output of AL)

Connection terminal of capacitor and resistor for charge-discharge pulse circuit

Connection terminal of capacitor for Lock detection, Auto restart

Connection terminal of capacitor for phase compensation

PWM

CNF

9

10

11

12

13

14

15

16

H

+

H

−

CS

A2

TOUT

Charge-discharge pulse output terminal

CL

Output terminal

Hall signal input terminal

Current sence input terminal

Current limit input terminal

Hall signal input terminal

Output terminal

Power supply terminal

A1