BA6901F(Old_V) 查看數據表（PDF） - ROHM Semiconductor

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BA6901F
(Rev.:Old_V)

2-Phase half-wave motor pre driver for fan motor

ROHM Semiconductor 

Motor driver ICs

!Block diagram

CR 1

HO 2

AL 3

ALB 4

PWM 5

LD 6

CNF 7

GND 8

BA6901F

LOCK

DETECTION

&

AUTOMATIC

RESTART

PWM

+

16 TOUT

−

REG

A2

15 VCC

14 A2

A1

13 A1

12 CL

+

11 CS

−

10 H−

+

−

9 H+

!Pin descriptions

Pin No. Pin name

Function

1

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

2

HO Hall signal output terminal

3

AL Alarm output terminal

4

ALB Alarm output terminal (Reverse signal output of AL)

5

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

6

LD Connection terminal of capacitor for Lock detection, Auto restart

7

CNF Connection terminal of capacitor for phase compensation

8

GND GROUND terminal

9

H+ Hall signal input terminal

10

H− Hall signal input terminal

11

CS Current sence input terminal

12

CL Current limit input terminal

13

A1 Output terminal

14

A2 Output terminal

15

VCC Power supply terminal

16

TOUT Charge-discharge pulse output terminal

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