A5979GLPTR-T Description

The A5979GLPTR-T is a complete microstepping motor driver with a built-in translator. It is designed to operate bipolar stepper motors in full-, half-, quarter-, and sixteenth-step modes, with an output drive capability of 40 V and ±2.8A. The A5979GLPTR-T includes a fixed off-time current regulator that has the ability to operate in slow-, fast-, or mixed-decay modes. This current-decay control scheme results in reduced audible motor noise, increased step accuracy, and reduced power dissipation.

A5979GLPTR-T Features

±2.8 A, 40 V output rating

Low RDS(on) outputs, 0.22 Ω source, 0.15 Ω sink typical

Automatic current decay mode detection/selection

3V 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

Short-to-ground protection

Short-to-VBB protection

Shorted load protection

A5979GLPTR-T Applications

Automotive 

Advanced driver assistance systems (ADAS) 

Industrial 

Appliances 

Enterprise systems 

Enterprise machine