A3977 Microstepping DMOS Driver with Translator Features and Benefits ▪ ±2.
5 A, 35 V output rating ▪ Low rDS(on) outputs, 0.
45 Ω source, 0.
36 Ω sink typical ▪ Automatic current decay mode detection/selection ▪ 3.
0 to 5.
5 V logic supply voltage range ▪ Mixed, fast, and slow current decay modes ▪ Home output ▪ Synchronous rectification for low power dissipation ▪ Internal UVLO and thermal shutdown circuitry ▪ Crossover-current protection Description The A3977 is a complete microstepping motor driver, with builtin translator.
It is designed to operate bipolar stepper motors in full-, half-, quarter-, and eighth-step modes, with output drive capability of 35 V and ±2.
5 A.
The A3977 includes a f...

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