R2A30445BX_15 Datasheet, PDF (1/5 Pages) Renesas Technology Corp – 2-Channel Motor Driver IC for DSC, DVC and Surveillance Cameras

Under Development Datasheet
R2A30445BX
2-Channel Motor Driver IC for DSC, DVC and Surveillance Cameras
R19DS0065EJ0070
Rev.0.70
May 10, 2012
Overview
The R2A30445BX is a semiconductor integrated circuit that incorporates driver
circuits suitable for motor of digital cameras.
Features
 An ultra-fine CMOS process has been adopted for low power consumption in
a design.
 A small 32-pin WLBGA package (ball pitch of 0.4mm/t=0.64mm)
 Built-in of 2CH H-bridge (with a FS/BTL selectable function).
 BTL has a selectable built-in DAC control capable of 10bit accuracy.
 Hall device drive, built-in Hall output computation circuit.
 8bitDAC built-in for various offset adjustments.
 Selection of 2 line serial communication (I2C) and 3 line serial communication
(SPI) is possible.
 For I2C, the input interface control voltage is compatible with 1.8V system.
 For SPI, the input interface control voltage is dependent on DVDD.
 Built-in power-on reset circuit, reference voltage, prevention from low-voltage
malfunction and thermal shutdown circuit.
Application
Motor driver for digital still cameras
Recommended operating conditions
Power-supply voltage range              VM/AVCC: 2.7V~5.5V
DVDD: 2.7V~3.6V
Rated power-supply voltage              VM: 5.0V
AVCC/DVDD: 3.25V
Block diagram and application circuit example
Pin Layout (Ball side)
Outline/Package WLBGA
Body: 2.56mm x 2.60mm t=0.64
Ball Pitch: 0.4mm
2.56mm
6 5 43 2 1
A
B
C
D
E
F
t=0.64
Note:
Unit: mm
· SEL2 terminal is connected to DVDD by rewiring Cu.
DVDD
Power
supply
MCU
Serial Control Signals
(2 lines/3 lines)
Control Signal
(1,2CH)
VM
Power
supply
DVDD
Power ON
Reset
AVCC
BIAS
Low voltage detection
TSD
VREF(1.25V)
1.5V
2.5V 3.0V
AVCC
SEL2
N
Serial Control Logic
BTL internal
DAC control
10bit 10bit
DAC DAC
Control
Circuit
VM
1CH
BTLAMP
H-Bridge
FS/CV
OUT1A
OUT1B
2CH
BTLAMP
H-Bridge
FS/CV
OUT2A
OUT2B
1.5V
/3.0V
8bit
DAC
2.5V/3.0VAVCC
+
8bit
DAC
–
DGND
AGND
+
–
Hall
Current
Amp 1
2.5V/3.0V/AVCC
1.5V
+
/3.0V
8bit
DAC
–
8bit
+
DAC
–
Hall Amp 1
1.5V
+
–
+
–
General-
purpose
Amp 3
Hall
Current
Amp 2
PGND
+
–
Hall Amp 2
1.5V
+
–
General-
purpose
Amp 4
AVCC
Power
supply
The specifications are subject to change without notice.
When it is examined for use, please confirm that this is the latest version.
R19DS0065EJ0070 Rev.0.70
May 10, 2012
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