LB11961

No.8793-4/7

Pin Assignment

F-GND (P-GND) : The motor system ground and the heat sink. Since the heat generated Since the heat generated by the chip is

dissipated through F-GND, the thermal resistance is lowered by increasing the area of the copper foil and solder

surface in the printed circuit pattern.

S-GND :

Control system ground

Block Diagram

Amplifier with

hysteresis

Hall

CPWM

P-GND

M

Control

circuit

IN

−

IN

+

VCC

OUT1

FG

OUT2

Delay circuit

Delay circuit

VTH

S-GND

6VREG

RD

Constant

voltage

Oscillator

circuit

Charge/discharge

circuit

1.3V

HB

Thermal

protection circuit

CT

Top view

F-GND

(P-GND)

F-GND

(P-GND)

LB11961

RMI

VTH

CPWM

FG

7

1

2

13

10

9

3

OUT2

IN-

HB

6VREG

S-GND

12

11

5

14

CT

4

6

8

OUT1

RD

IN+

VCC