Integrated Circuit Chip A4989SLDTR-T Dual Full Bridge MOSFET Driver IC TSSOP38

Product Description Of A4989SLDTR-T

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.

Specification Of A4989SLDTR-T

Features Of A4989SLDTR-T

• 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

Typical Application Diagram Of A4989SLDTR-T

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