BU24038GW_13 Datasheet, PDF (1/26 Pages) Rohm – u- step System Lens Driver for Digital Still Cameras

Datasheet
System Lens Drivers
μ-step System Lens Driver
for Digital Still Cameras
BU24038GW
●General Description
BU24038GW is a system Lens Driver that uses μ-step
driving to make the configuration of the sophisticated,
high precision and low noise lens driver system possible.
This IC has a built-in driver for both DC motor and voice
coil motor and a μ-step controller that decreases CPU
power. Therefore, multifunctional lens can be applied.
●Features
„ Built-in 9 channels Driver block
1ch-8ch: Voltage control type H-bridge
(Adaptable to STM 3systems)
9ch: Current control type H-bridge
„ Built-in 3 channels PI driving circuit
„ Built-in 4 channels Waveforming circuit
„ Built-in PLL circuit
●Key Specifications
„ Digital Power Supply Voltage:
„ Driver Power Supply Voltage:
„ Output Current (1ch-9ch):
„ Input Clock Frequency:
„ FET ON Resistance (1ch-8ch):
„ FET ON Resistance (9ch):
„ Operating Temperature Range:
2.7V to 3.6V
2.7V to 5.5V
±500mA(Max)
1MHz to 28MHz
1.5Ω(Typ)
1.0Ω(Typ)
-20℃ to +85℃
●Package
USCP75M3
3.80mm x 3.80mm x 0.85mm
●Applications
„ Digital still cameras
●Typical Application Circuit
Example1
Photo interrupter
DVDD
DVSS
OUT5A
5ch
OUT5B _Driver
M
OUT6A
OUT6B/7B _6ch/7ch
OUT7A
Driver
OUT8A
OUT8B
8ch
Driver
RNF9
OUT9A
OUT9B
9ch
Driver
Logic
VDDAMP
MVCC12
MVCC34
MVCC567
MVCC8
MGND9
MGND12
MGND34
MGND567
MGND8
OUT1A
1ch
Driver OUT1B
M
2ch
Driver
OUT2A
OUT2B
OUT3A
3ch
Driver OUT3B
M
4ch
Driver
OUT4A
OUT4B
Main Host
○Product structure：Silicon monolithic integrated circuit ○This product is not designed for protection against radioactive rays
.www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
1/22
TSZ02201-0M2M0BC12090-1-2
18.Apr.2013 Rev.002