BU24031GW Datasheet, PDF (1/24 Pages) Rohm – u-step System Lens Driver for Digital Still Cameras

Datasheet
System Lens Drivers
μ-step System Lens Driver
for Digital Still Cameras
BU24031GW
●General Description
BU24031GW 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 5 channels Driver block.
1ch-4ch: Voltage control type H-bridge
(Adaptable to STM 1systems)
5ch: Current control type H-bridge
„ Built-in 2 channels PI driving circuit
„ Built-in 3 channels Waveforming circuit
„ Built-in FLL digital servo circuit
„ Built-in PLL circuit
●Key Specifications
„ I/O Power Supply Voltage:
„ Digital Power Supply Voltage:
„ Driver Power Supply Voltage:
„ Output Current (1ch-5ch):
„ Input Clock Frequency:
„ FET ON Resistance (1ch-4ch):
„ FET ON Resistance (5ch):
„ Operating Temperature Range:
1.62V to 3.6V
2.7V to 3.6V
2.7V to 5.5V
±500mA(Max)
1MHz to 28MHz
2.0Ω(Typ)
1.0Ω(Typ)
-20℃ to +85℃
●Package
UCSP75M2
2.50mm x 2.50mm x 0.85mm
●Applications
„ Digital still cameras
●Typical Application Circuit
Example1
Photo interrupter
DVDDIO
I
DVDD
DVSS
VDDAMP
MVCC12
MVCC3
MVCC4
MGND
OUT4A
OUT1A
4ch
OUT4B ^Driver
Logic
1ch
Driver
OUT1B
M
OUT2A
2ch
RNF5
Driver
OUT2B
OUT5A
OUT5B
5ch
Driver
3ch
Driver
OUT3A
OUT3B
Main Host
○Product structure：Silicon monolithic integrated circuit ○This product is not designed for protection against radioactive rays
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© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
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TSZ02201-0M2M0BC12010-1-2
2.May.2013 Rev.003