HA13631T

3

Pin Description

Pin No.

Pin Name

Function

1

ASGND

Actuator small signal GND

2

SLDIN

SLD driver control input

3

OP3IN

Inverted input of OP amp. 3 for SLD driver control

4

OP4IN

Inverted input of OP amp. 4 for TRY driver control

5

VSLD

SLD driver power supply

6

TRYIN

TRY driver control input

7

SLDP

SLD driver P output

8

SLDN

SLD driver N output

9

SLDGND

SLD and TRY driver GND

10

VTRY

TRY driver power supply

11

TRYP

TRY driver P output

12

TRYN

TRY driver N output

13

BSTGND

Booster GND

14

BP1

Booster pumping capacitor connection

15

BP2

Booster pumping capacitor connection

16

VBST

Booster output pin. This circuit generates a voltage about two times of the VSPN

pin.

17

U

U phase output

18

RNF

SPN driver current detection

19

V

V phase output

20

W

W phase output

21

EXTCOM

COMM signal on/off control and FGOUT switching. (Refer to the Timing Chart)

22

FGOUT

FG output (Refer to the Timing Chart) open drain

23

COMM

Start-up clock input pin for sensorless (Refer to the Timing Chart)

24

BRKSEL

To select the brake mode (Refer to the Truth Table)

25

CE

Chip enable (Refer to the Truth Table)

26

HB

Hall bias switch

27

HU+

U-phase Hall +input, and U-phase B-EMF connection pin for sensorless

28

ASGND

Actuator small signal GND

29

ASGND

Actuator small signal GND

30

VSPN

SPN driver power supply

31

HU–

U-phase Hall –input, and center tap connection pin for sensorless

32

HV+

V-phase Hall +input, and V-phase B-EMF connection pin for sensorless

33

HV–

V-phase Hall –input, and center tap connection pin for sensorless