A3986 Datasheet - Allegro MicroSystems

A3986 Dual Full-Bridge MOSFET Driver

The A3986 is a dual full-bridge gate driver with integrated microstepping translator suitable for driving a wide range of higher power industrial bipolar 2-phase stepper motors (typically 30 to 500 W). Motor power is provided by external N-channel power MOSFETs at supply voltages from 12 to 50 V. Th.

A3986 Features

* ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ 2-wire step and direction interface Dual full-bridge gate drive for N-channel MOSFETs Operation over 12 to 50 V supply voltage range Synchronous rectification Cross-conduction protection Adjustable mixed decay Integrated sinusoidal DAC current reference Fixed off-time PWM current con

A3986_AllegroMicroSystems.pdf