Sanyo EP92H User's Manual | Page 16

Sanyo Cell Phone User's Manual - EP92H.
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Demand for camera cell phones is increasing rapidly not only in Japan, but in most markets around the world as well.
While compact, high image quality cameras are in demand in the cell phone market, there are also increasing desires for high-
level camera functions such as mechanical shutters and autofocus.
SANYO developed even further their motor driver technologies nurtured through years of experience in the digital camera field
and provides these technologies for use in camera cell phones as ultraminiature package motor drivers that require few external
components.

31

30

Ultraminiature Package

Motor Drivers for Cell Phones

■ Camera Cell Phone Driver Lineup

Voice Coil Motor

Stepping Motor

(1-2-phase excitation)

Stepping Motor

(2-phase excitation) 

LB1801CL

Comp.IN

Comp.IN

PIEZO

(SIDM)

LB1801CL

LB1801CL

Comp.IN

LB1938T/CL

800 mA

LB8681CL

Constant Current 1.5 ch

LB1941T/CL

Constant Current

LB8682PL

Constant Current 1 ch + 2 ch

LB1800CL

Comp.IN

LB8686PL

1.5 ch ✕ 2

Focus

Zoom

LB1800CL

LB1800CL

Comp.IN

Comp.IN

LV8071LG

Iris diaphragm

Shutter

Under development

New product

New product

New product

Under development

Saturated control and 1-2 phase excitation drivers

80 k

60 k

80 k

60 k

80 k

60 k

80 k

60 k

Stepping motor

VCC

OUT1

OUT2

OUT3

OUT4

GND

IN4

IN3

IN2

IN1

µF

 Control block

Thermal shutdown circuit

● Supports an FR position

detection output

● Low saturation voltage output
● Two-phase excitation driver
● Low-voltage drive

Drive is possible from 2.2 V

IN1

VCC

0.2 V

IN2

IN3

GND

RFG

RFS

Iris

Shutter

OUT3

OUT2

OUT1

RF

+

CPU

Thermal protection circuit

  Constant 

current 

control amplifier

Reference 

voltage 

circuit

 Logic circuit

1.3 V

Stepping Motor

VCC

OUT1

OUT2

OUT3

OUT4

GND

INM

COMP

BIAS

ENA

IN2

IN1

µF

L

R

 Control block

Thermal 

shutdown circuit

12-pin 2.8 mm    Package

Compact Package

ENA

STEP

M1

PWM H bridge

Focus

Sequence circuit

Motor Driver ICs for Cell Phones

Miniature Driver Series

Lens Driver IC for Cell Phones

LB1906CL

Two-phase excitation motor drivers

New

product

LB1801CL

Constant current driver with H bridge × 1.5 ch

Under

development

LB8683CL

Auto Foucus Piezo actuator

Under

development

LV8071LG

For Auto-Focus Motors

For Auto-Focus Motors

For Shutter and Iris Diaphragm System

For autofocus and zoom

Block diagram

Block diagram

Block diagram

Block diagram

0.576418s