A3908 반도체 회로 부품 판매점
Low Voltage DC Motor Driver
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 Allegro MicroSystems |
A3908
www.DataSheet4U.com
Low Voltage DC Motor Driver
Features and Benefits
▪ Constant voltage operation (adjustable)
▪ 500 mA output peak rating
▪ Low power standby mode
▪ Small 2 mm × 2 mm, 0.55 mm nominal height DFN
package
▪ Typical input voltage range of 3 to 5.5 V
▪ Adjustable constant voltage or PWM operation
▪ Less than 500 nA standby mode current
▪ –40 to 85 operating temperature range
Package: 8 Contact DFN (suffix EE)
Approximate Scale 1:1
Description
The A3908 is a low voltage bidirectional DC motor driver with
a typical input voltage range of 3 to 5.5 V and output currents up
to 500 mA. The unique output full-bridge incorporates source-
side linear operation to allow a constant voltage across the motor
coil. This regulated output minimizes motor voltage change due
to I × RDS(on) variation and battery voltage tolerance.
Logic input pins are provided to control the motor direction of
rotation, brake, and standby (< 500 nAsupply current) modes and
to allow optional PWM of the sink drivers. Internal protection
circuitry includes thermal shutdown, undervoltage lockout, and
crossover current (shoot-through) protection.
The A3908 is supplied in a 2 mm x 2 mm, 0.55 mm nominal
height, 8-lead DFN package, with exposed thermal pad (package
suffix EE). This small footprint package is lead (Pb) free, with
100% matte tin leadframe plating.
Applications include:
▪ Robotic actuators and pumps
▪ Portable printers/scanners
▪ Camera lens/shutter control
▪ Battery powered toys and games
▪ Low noise test instrumentation systems
Typical Application
+VBAT
CPU
R1
18 kΩ
R2
10 kΩ
VDD
IN1
IN2
VREF
A3908
OUTA
OUTB
VSET
GND
M
3908-DS
A3908
Low Voltage DC Motor Driverwww.DataSheet4U.com
Selection Guide
Part Number
A3908EEETR-T
Packing
Tape and reel, 3000 pieces/reel
Parameter
Supply Voltage
Logic Input Voltage Range
Output Current
Junction Temperature
Storage Temperature Range
Operating Temperature Range
Absolute Maximum Ratings
Symbol
VDD
VIN
IOUT
TJ
Tstg
TA
Range E
Conditions
Min. Typ. Max. Units
––6V
–0.3 – 6 V
500 mA
– – 150 °C
–40 – 150 °C
–40 – 85 °C
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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제조업체: Allegro MicroSystems
( allegro )
A3908 driver
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[ A3908.PDF ]
[ A3908 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
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