A3971SLB中文資料ALLEGRO數據手冊PDF規(guī)格書

Designed to interface between external PWM control logic and inductive loads such as relays, solenoids, dc motors, or stepper motors, each full bridge can operate with output currents to ±2.5 A and operating voltages to 50 V.

Low rDS(on) DMOS output drivers provide low power dissipation during PWM operation. Internal charge pump circuitry is used to create a boosted voltage to fully enhance the high-side DMOS switches.

FEATURES

■ ±2.5 A Load Current Capability per Bridge

■ Parallel Outputs for 5 A Load-Current Capability

■ Low rDS(on) Outputs Typically 325 m? source, 175 m? sink

■ Synchronous Rectification via Control Logic

■ Internal Undervoltage Monitor

■ Crossover-Current Protection

■ Source Connections for External Current Sensing

■ Thermal Shutdown Circuitry