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| R2A30428BMR2A30428BX_15 Datasheet, PDF (1/7 Pages) Renesas Technology Corp – 6-Channel Motor Driver ICs for DSC, DVC and Surveillance Cameras | |||
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R2A30428BM/R2A30428BX
6-Channel Motor Driver ICs for DSC, DVC and Surveillance Cameras
Datasheet
R19DS0061EJ0100
Rev.1.00
May 10, 2012
Overview
The R2A30428BM is a semiconductor integrated circuit that incorporates driver
circuits suitable for motor of digital cameras
Features
ï· An ultra-fine CMOS process has been adopted for low power consumption in a
design with no charge-pump.
ï· A small 36-pin WLP package (ball pitch of 0.4mm/t=0.60mm) has been adopted.
ï· 1ch/2ch and 3ch/4ch are capable of 2-2 phase stepper drive, 1-2 phase (100%)
stepper drive, 128, 256 and 512 resolution micro-steps.
ï· 3ch/4ch is capable of constant voltage drive.
ï· 5ch/6ch is capable of constant current drive.
ï· By using exclusive control mode on 5ch and 6ch, it resembles 7ch drive.
ï· Built-in 3 PI drivers channels.
ï· Built-in 3 Schmitt buffers channels.
ï· Built-in low-voltage malfunction prevention and thermal shutdown circuit.
ï· Power supplies VCC and VM are internally isolated and include a function to
prevent reverse current between the power supplies.
Pin Layout (Ball side)
Outline/Package: WLP
Body: 2.62mm x 2.92mm t=0.60mm
Ball Pitch: 0.4mm
2.62mm
A
B
C
D
E
F
Application
Motor driver for digital still cameras
G
Recommended operating conditions
Power-supply voltage range ï ï ï ï ï ï ï ï ï ï ï ï ï VCC: 2.7V~3.6V
VM: 2.7V~5.5V
Rated power-supply voltage ï ï ï ï ï ï ï ï ï ï ï ï ï VCC: 3.3V
VM: 5.0V
Block diagram and application circuit example
6 5 43 2 1
t=0.60
Note:
Unit: mm
⢠Each VM pins respectively are not connected to each
other internally. Please connect them externally.
VCC
2.7~3.6V
power supply
VCC
MCU
Control Signal (3,4,5,6CH)
Control clock (3,4CH)
1,2CH
Control clock
Serial control
signal (3wire)
BIAS
Low voltage detection
TSD
VREF(1.25V)
4Bit DAC
POR
Exclusive
Control 1
6CH
H-bridge
CCïFS
5CH
H-bridge
CCïFS
Serial control Logic
U-STEP
circuit
4CH
BTLAMP
H-bridge
CVïFS
3CH
BTLAMP
H-bridge
CVïFS
30mA 30mA 30mA
VCC
U-STEP
circuit
2CH
BTLAMP
H-bridge
CV
1CH
BTLAMP
H-bridge
CV
B1OUT
B1IN
B2OUT
B2IN
B3OUT
B3IN
GND
DCM
COIL
DCM
COIL
FS : Full-swing
CV : Constant-Voltage
CC : Constant-Current
DCM
COIL
DCM
COIL
DCM
COIL
STM-2
STM-1
VM
Power
supply
R19DS0061EJ0100 Rev.1.00
May 10, 2012
Page 1 of 6
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