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DMOS Microstepping Driver with Integrated Translator and Automatic Current Decay
A4982
The A4982 simplifies microstepping motor control with its integrated translator, automatic current decay mode selection, and integrated protection features.
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Synchronous rectification for low power dissipation
Internal UVLO
Crossover-current protection
3.3 and 5 V compatible logic supply
Thin profile QFN and TSSOP packages
Thermal shutdown circuitry
Short-to-ground protection
Shorted load protection
Low current Sleep mode, <10 µA
No smoke no fire (NSNF) compliance (ET package)
The A4982 is supplied in two surface mount package, the ET, a 5 mm × 5 mm, 0.90 mm nominal overall package height QFN package, and the LP package, a 24-pin TSSOP. Both packages have exposed pads for enhanced thermal dissipation, and are lead (Pb) free (suffix –T), with 100% matte tin plated leadframes.