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