This datasheet introduces the A3958SB and A3958SLB, which are two dc motor drivers. They can control the speed and direction of a dc motor through PWM pulse control. The maximum output current is ±2 A and the operating voltage is 50 V.
The A3958SB and A3958SLB are DMOS full-bridge PWM motor drivers designed for pulse-width modulated (PWM) current control of DC motors. They support continuous output currents up to +2 A and operating voltages up to 50 V. The devices feature internal fixed off-time PWM current-control timing circuitry that can be programmed via a serial interface to operate in slow, fast, and mixed current-decay modes.
| Continuous Output Current | +2 A |
|---|---|
| Operating Voltage | 50 V |
| Oscillator Input Frequency | 2.9 MHz to 6.1 MHz |
The device can operate in slow, fast, and mixed current-decay modes.
Yes, internal synchronous rectification control circuitry is provided to reduce power dissipation.