Designed for pulse-width modulated (PWM) current control of dc motors, the A3958SB and A3958SLB are capable of continuous output currents to ±2 A and operating voltages to 50 V. Internal fixed off time PWM current-control timing circuitry can be programmed via a serial interface to operate in slow, fast, and mixed current-decay modes.

FEATURES

±2 A, 50 V Continuous Output Rating

Low rDS(on) Outputs (270 mΩ, Typical)

Programmable Mixed, Fast, and Slow Current-Decay Modes

Serial Interface Controls Chip Functions

Synchronous Rectification for Low Power Dissipation

Internal UVLO and Thermal-Shutdown Circuitry

Crossover-Current Protection