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부품번호 | BU24024GU 기능 |
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기능 | System Lens Drivers | ||
제조업체 | ROHM Semiconductor | ||
로고 | |||
전체 23 페이지수
Datasheet
System Lens Drivers
μ-step System Lens Driver
for Digital Still Cameras
BU24024GU
●General Description
BU24024GU 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 7 channels Driver block
1ch-5ch: Voltage control type H-bridge
(Adaptable to STM 2systems)
6,7ch: Current control type H-bridge
Built-in 2 channels PI driving circuit
●Applications
Digital still cameras
●Typical Application Circuit
●Key Specifications
Digital Power Supply Voltage:
2.7V to 3.6V
Driver Power Supply Voltage:
2.7V to 5.5V
Output Current (1ch-4ch,6ch,7ch): ±400mA(Max)
Output Current (5ch):
±600mA(Max)
Input Clock Frequency:
1MHz to 27.5MHz
FET ON Resistance (1ch-5ch):
1.5Ω(Typ)
FET ON Resistance (6ch,7ch):
1.1Ω(Typ)
Operating Temperature Range:
-20℃ to +85℃
●Package
VCSP85H3
3.50mm x 3.60mm x 1.00mm
Example1
Photo interrupter
DVDD
DVSS
OUT5A
5ch
OUT5B Driver
RNF6
OUT6A
6ch
OUT6B Driver
RNF7
OUT7A
7ch
OUT7B Driver
Logic
VDDAMP67
MVCC12
MVCC34
MVCC5
MGND67
MGND125
MGND34
1ch
Driver
OUT1A
OUT1B
2ch
Driver
OUT2A
OUT2B
3ch
Driver
OUT3A
OUT3B
4ch
Driver
OUT4A
OUT4B
M
M
Main Host
○Product structure:Silicon monolithic integrated circuit
.www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product is not designed for protection against radioactive rays
1/20
TSZ02201-0M2M0BC12030-1-2
18.Apr.2013 Rev.002
BU24024GU
●Block Diagram
DVDD
DVSS
DVDD
POR
DVDD
TSD
DVDD
LV
DET
MVCC5
OUT5A
OUT5B
VDDAMP67
SENSE6
RNF6
OUT6A
OUT6B
MGND67
SENSE7
RNF7
OUT7A
OUT7B
MGND125
MVCC5
PRE-
DRIVER
DVDD
DAC6
VDDAMP67
DVDD
DAC7
MGND67
DVDD
DVDD
Logic
Datasheet
MVCC12
PRE-
DRIVER
MVCC12
PRE-
DRIVER
MVCC34
PRE-
DRIVER
MVCC34
PRE-
DRIVER
MVCC12
MGND125
MVCC34
MGND34
MVCC12
OUT1A
OUT1B
MGND125
OUT2A
OUT2B
MVCC34
OUT3A
OUT3B
MGND34
OUT4A
OUT4B
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
4/20
TSZ02201-0M2M0BC12030-1-2
18.Apr.2013 Rev.002
4페이지 BU24024GU
Datasheet
●Description of Blocks
Current Driver (7ch Driver)
Built-in constant current driver.
The voltage of RNF pin and the external resistor (RRNF) determine the amount of output current. The internal
high-precision amplifier (CMOS gate input) is used for constant current control. If any resistance component exists in
the wirings of RNF pin and the external resistor (RRNF), the precision can be reduced. To avoid this, pay utmost
attention to the wirings.
(1) Control
(ⅰ) Register Control
The constant current drive is executed by the output current value, the current direction and the current ON/OFF which
are controlled by the register settings.
Host
Current value
Direction
ON/OFF 3
CSB
SCLK
SDATA
SIF
Control
Logic
Current control
DAC
C.C.
VCM
(ⅱ)External Pin Control
The constant current drive is executed by the output current value which is controlled by the register setting. Constant
current driving direction and turning ON/OFF are controlled by IN7A/IN7B pin.
CSB
Current value SCLK
3 SDATA
Host
Direction
ON/OFF
IN7A
2 IN7B
SIF
Control
Logic
Current control
DAC
C.C.
VCM
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
7/20
TSZ02201-0M2M0BC12030-1-2
18.Apr.2013 Rev.002
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부품번호 | 상세설명 및 기능 | 제조사 |
BU24024GU | System Lens Drivers | ROHM Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |