BA6901F View Datasheet(PDF) - ROHM Semiconductor

Part Name

Description

MFG CO.

BA6901F

Two-phase Full-wave DC Brushless Fan Motor Drivers

ROHM Semiconductor 

BA6901F

Datasheet

●Pin configuration

CR 1

FG 2

AL 3

ALB 4

PWM 5

LD 6

CNF 7

GND 8

(TOP VIEW)

16 TOUT

15 Vcc

14 A2

13 A1

12 CL

11 CS

10 H–

9 H+

Fig. 1 Pin configuration

●Block diagram

●Pin description

P/No. T/Name

1

CR

2

FG

3

AL

4

ALB

5

PWM

6

LD

7

CNF

8

GND

9

H+

10

H-

11

CS

12

CL

13

A1

14

A2

15

Vcc

16 TOUT

Function

Charging and discharging

pulse circuit capacitor and

resistor connecting terminal

Rotating speed pulse signal

output terminal

Lock alarm signal output terminal

Lock alarm signal terminal

(inversion signal of AL)

PWM input terminal

(H or OPEN:Output ON, L:Output

OFF)

Lock detection and automatic

restart capacitor connecting terminal

Phase compensating capacitor

connecting terminal

GND terminal

Hall input terminal +

Hall input terminal -

Current detecting input terminal

Current limiting input terminal

Output terminal 1

Output terminal 2

Power terminal

Charging and discharging

pulse output terminal

CR

1

FG

2

AL

3

ALB

4

PWM

5

LD

6

CNF

7

GND

8

LOCK

DETECTION

&

AUTOMATIC

RESTART

PWM

+

-

+

-

+

-

REG

A2

A1

-

+

-

+

TOUT

16

Vcc

15

A2

14

A1

13

CL

12

CS

11

H-

10

H+

9

Fig.2 Block diagram

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© 2012 ROHM Co., Ltd. All rights reserved.

TSZ22111・15・001

2/17

TSZ02201-0H1H0B100500-1-2

18.DEC.2012 Rev.002

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