company blog about Supply Allegro A4989SLDTR-T Dual Full Bridge MOSFET Driver IC TSSOP38

Supply Allegro A4989SLDTR-T Dual Full Bridge MOSFET Driver IC TSSOP38

Product Description
A4989SLDTR-T 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.
A4989SLDTR-T contains two sinusoidal DACs that generate the reference voltage for two separate fixed-off-time PWM current controllers. These provide current regulation for external power MOSFET full-bridges.

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 control
Enhanced low current control when microstepping