A3908

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 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 sourceside 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 nA supply 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 Package: ...