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PDF BU24033GW Data sheet ( Hoja de datos )
| Número de pieza | BU24033GW | |
| Descripción | System Lens Driver | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Datasheet
System Lens Drivers
μ-step System Lens Driver
for Digital Still Cameras
BU24033GW
●General Description
BU24033GW 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 6 channels Driver block
1ch-5ch: Voltage control type H-bridge
(Adaptable to STM 2systems)
6ch: 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-4ch,6ch):
Output Current (5ch):
Input Clock Frequency:
FET ON Resistance (1ch-4ch):
FET ON Resistance (5ch,6ch):
Operating Temperature Range:
1.62V to 3.6V
2.7V to 3.6V
2.7V to 5.5V
±500mA(Max)
±600mA(Max)
1MHz to 28MHz
1.5Ω(Typ)
1.0Ω(Typ)
-20℃ to +85℃
●Package
UCSP75M3
3.00mm x 3.00mm x 0.85mm
●Applications
Digital still cameras
●Typical Application Circuit
Example1
Photo interrupter
DVDDIO
DVDD
DVSS
OUT5A
OUT5B
5ch
Driver
RNF6
OUT6A
OUT6B
6ch
Driver
Logic
VDDAMP
MVCC12
MGND126
MVCC34
MVCC5
MGND345
1ch
Driver
OUT1A
OUT1B
2ch
Driver
OUT2A
OUT2B
3ch
Driver
4ch
Driver
OUT3A
OUT3B
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
1/21
TSZ02201-0M3M0BC16060-1-2
20.May.2016 Rev.003
1 page  
BU24033GW
●Description of Blocks
Voltage Driver (5ch Driver)
Built-in voltage driver of PWM driving type.
Built-in digital FLL speed control logic.
(1) Control
(ⅰ)Register Control
■at speed control = OFF
The PWM drive is executed by the PWM duty ratio, the PWM direction and the PWM ON/OFF which are controlled by
the register settings.
Host
PWM duty
Direction
ON/OFF 3
CSB
SCLK
SDATA
SIF
PWM
Control
Logic
H.B.
M
■at speed control = ON
The speed control drive is executed by the target speed value, the direction, the coefficient value of PI filter and the
turning ON/OFF which are controlled by the register settings.
The motor speed is adjusted by comparing the target speed with the motor speed detected at the signal of
photo-interrupter.
Host
Target speed
PI filter
Direction
ON/OFF 3
CSB
SCLK
SDATA
SIF
DCM
Speed control
Logic
PWM
Control
Logic
H.B.
PI Dr
Comp
DCM
PI
(ⅱ)External Pin Control (only at speed control = OFF)
■at speed control = OFF
The PWM drive is executed by the PWM duty ratio which is controlled by the register setting. The PWM direction and
the PWM ON/OFF are controlled by IN5A/IN5B pin.
Host
CSB
SCLK
PWM duty 3 SDATA
Direction
ON/OFF
IN5A
2 IN5B
SIF
PWM
Control
Logic
H.B.
M
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/21
TSZ02201-0M3M0BC16060-1-2
20.May.2016 Rev.003
5 Page 
BU24033GW
●Typical Performance Curves
(Unless otherwise specified, Ta25C, DVDDIO=DVDD=3.0V, MVCC=5.0V, DVSS=MGND=0.0V)
5
4
IO=±100mA
3
2
1
0
2.0
3.0 4.0 5.0
MVCC ［V］
Figure 9. Output ON-Resistance
MVCC Dependency
(5ch,6ch driver block)
6.0
5
4
IO=±100mA
3
2
1
0
-50
-25 0
25 50 75
Ambient Temperature ［℃］
100
Figure 10. Output ON-Resistance
Temperature Dependency
(5ch,6ch driver block)
5
4
3
2
1
0
0 32 64 96 128
Serial setting code
Figure 11. Average Voltage Accuracy
between different output pins
(Voltage driver block)
400
300
200
100
0
32 64 96 128 160 192 224 256
Serial setting code
Figure 12. Output Current
(Current driver block, RRNF = 1.0Ω, RL = 5.0Ω)
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/21
TSZ02201-0M3M0BC16060-1-2
20.May.2016 Rev.003
11 Page | ||
| Páginas | Total 25 Páginas | |
| PDF Descargar | [ Datasheet BU24033GW.PDF ] | |
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