Description
●The A4982 is a complete microstepping motor driver with built-in translator for easy operation. It is designed to operate bipolar stepper motors in full-, half-, quarter-, and sixteenth-step modes, with an output drive capacity of up to 35 V and ±2 A. The A4982 includes a fixed off-time current regulator which has the ability to operate in Slow or Mixed decay modes.
●The ET package meets customer requirements for no smoke no fire (NSNF) designs by adding no-connect pins between critical output, sense, and supply pins. So, in the case of a pin-to-adjacent-pin short, the device does not cause smoke or fire. Additionally, the device does not cause smoke or fire when any pin is shorted to ground or left open.
●Features and Benefits
●▪ Low R
●DS(ON) outputs
●▪ Automatic current decay mode detection/selection
●▪ Mixed and Slow current decay modes
●▪ 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)
