點晶科技股份有限公司

SILICON TOUCH TECHNOLOGY INC.

11-MD152

SP-MD152-A.011

Version

：A.011

Page

：8

Application Circuit 2

VDD

PIM

EN1

EN2

EN3

IN1

IN2

IN3

IN4

VREF

NC

VC

11-MD152

OUT1

GND

IM

OUT2

OUT3

OUT5

OUT6

OUT7

OUT4

OUT8

GND

VB

IN4

IN3

IN2

IN1

EN3

EN2

EN1

VB

VB

ZOOM

AF

Aperture

VDD

0.1μ

0.1μ

0.1μ

10μ

10μ

10μ

0.1μ

M

0.1μ

Ra

Rb

R

IM

M-shutter

R

PIM

Cc

AF: Saturation drive for 2 phase, 1-2 phase stepping motor

M-shutter: Constant current drive for shutter voice coil motor

Aperture: Saturation voltage drive for stepping motor

ZOOM: Constant voltage drive for DC motor (forward/reverse/brake/standby)