VCM Driver. BU64253GWZ Datasheet

BU64253GWZ Driver. Datasheet pdf. Equivalent

BU64253GWZ Datasheet
Recommendation BU64253GWZ Datasheet
Part BU64253GWZ
Description Bi-directional VCM Driver
Feature BU64253GWZ; Datasheet Mobile Phone Module Drivers Bi-directional VCM Driver for Autofocus BU64253GWZ General .
Manufacture ROHM
Datasheet
Download BU64253GWZ Datasheet




ROHM BU64253GWZ
Datasheet
Mobile Phone Module Drivers
Bi-directional VCM Driver for Autofocus
BU64253GWZ
General Description
The BU64253GWZ is designed to drive Bi-directional
voice coil motors. Additionally the driver is able to source
the output current without the need for a direction control
signal. The driver includes ISRC (Intelligent Slew Rate
Control) to reduce mechanical ringing to optimize the
camera’s autofocus capabilities.
Key Specifications
Power Supply Voltage:
Output Resistance:
Master Clock:
Output Current:
Operating Temperature:
2.5 V to 4.5 V
3.2 Ω (Typ)
2 MHz (Typ)
-100 mA to +100 mA
-25 °C to +85 °C
Features
Bi-directional Constant Current Driver
10 bit Resolution Current Control
ISRC Mechanical Ringing Compensation
2-wire Serial Interface
(I2C FAST-MODE Plus Compatible)
Integrated Current Sense Resistor
Applications
Mobile Camera Module
Bi-directional VCM Actuators
Package
UCSP30L1A(6pin)
W (Typ) x D (Typ) x H (Max)
0.72 mm x 1.13 mm x 0.33 mm
Typical Application Circuit
I2C
master
1.8V
3.0V
VDD
CVDD
Power save
VREF
TSD
SCL
SDA
LOGIC
10 bit
DAC
Direction
Control
&
Pre driver
OUTPUT
Control_A
OUTPUT
Control_B
POR
GND
Current
Sense
-
+
ISOURCE
VCM MTR
ISINK
Product structure : Silicon monolithic integrated circuit
.www.rohm.com
© 2018 ROHM Co., Ltd. All rights reserved.
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This product has no designed protection against radioactive rays
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ROHM BU64253GWZ
BU64253GWZ
Pin Configuration
A1Pin
Mark
A
1
GND
2
VDD
B ISINK ISOURCE
C SDA
SCL
(TOP VIEW)
Pin Description
Pin No. Pin Name
Function
A1 GND Ground
A2 VDD Power Supply Voltage
B1 ISINK Output -
B2 ISOURCE Output +
C1 SDA 2-wire Serial Interface Data Input
C2 SCL 2-wire Serial Interface Clock Input
Block Diagram
VDD
Power save
VREF
TSD
SCL
SDA
LOGIC
10 bit
DAC
Direction
Control
&
Pre driver
OUTPUT
Control_A
OUTPUT
Control_B
POR
GND
Current
Sense
-
+
ISOURCE
ISINK
www.rohm.com
© 2018 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 15 • 001
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TSZ02201-0K1K0B602050-1-2
16. Mar.2018 Rev.001



ROHM BU64253GWZ
BU64253GWZ
Absolute Maximum Ratings (Ta = 25 °C)
Parameter
Symbol
Rating
Unit
Power Supply Voltage
Control Input Voltage(Note 1)
Power Dissipation(Note 2)
VDD -0.3 to +5.5
VIN -0.3 to +5.5
Pd 0.29
V
V
W
Maximum Junction Temperature
Tjmax
125
°C
Storage Temperature Range Tstg -55 to +125
°C
Output Current(Note 3)
IOUT -150 to +150
mA
Caution 1: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is
operated over the absolute maximum ratings.
Caution 2: Should by any chance the maximum junction temperature rating be exceeded the rise in temperature of the chip may result in deterioration of the
properties of the chip. In case of exceeding this absolute maximum rating, design a PCB boards with power dissipation taken into consideration by
increasing board size and copper area so as not to exceed the maximum junction temperature rating.
(Note 1) VIN is 2-wire serial interface input pins (SCL, SDA).
(Note 2) UCSP30L1A package. Reduced by 0.29 W/°C when operating above Ta=25 °C (when mounted in ROHM’s standard board).
(Note 3) Must not exceed Pd, ASO, or Tjmax=125 °C.
Recommended Operating Conditions
Parameter
Power Supply Voltage
Control Input Voltage(Note 4)
2-wire Serial Interface Frequency
Output Current(Note 5)
Operating Temperature
Symbol
VDD
VIN
fCLK
IOUT
Topr
Min
2.5
0
0
-100
-25
Rating
Typ
-
-
-
-
Max
4.5
4.5
1
+100
+85
Unit
V
V
MHz
mA
°C
Capacitance of VDD Capacitor(Note 6)
CVDD
0.5
1.0
-
µF
(Note 4) VIN is 2-wire serial interface input pins (SCL, SDA).
(Note 5) Must not exceed Pd, ASO, or Tjmax=125 °C.
(Note 6) Ceramic capacitor is recommended. The capacitor value including temperature change, DC bias change, and aging change must be larger than
minimum value.
www.rohm.com
© 2018 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 15 • 001
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TSZ02201-0K1K0B602050-1-2
16. Mar.2018 Rev.001







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