SLA7052M Datasheet (Allegro MicroSystems) - UNIPOLAR STEPPER-MOTOR TRANSLATOR/PWM DRIVER

SLA7052M, UNIPOLAR STEPPER-MOTOR TRANSLATOR/PWM DRIVER

Internal PWM current control.

Each pair of outputs is controlled by a fixed off-time PWM current-control circuit that limits the load current to a desired value (ITRIP).

Initially, an output is enabled and current flows through the motor winding and RS.

When the voltage across the current-sense resi

or r t o ive M r D SLA7052M UNIPOLAR STEPPER-MOTOR TRANSLATOR/PWM DRIVER Combining low-power CMOS logic with high-current, high-voltage power FET outputs, the SLA7052M translator/driver provides complete control and drive for a two-phase unipolar stepper motor with internal fixed off time, pulse-width modulation (PWM) control of the output current in a power multi-chip module (PMCM™).

The CMOS logic section provides the sequencing logic, direction, full/half-step control, synchronous/asynchron

SLA7052M Features

* 3 A Output Rating Internal Sequencer for Full or Half-Step Operation PWM Constant-Current Motor Drive Cost-Effective, Multi-Chip Solution 100 V, Avalanche-Rated NMOS Low rDS(on) NMOS Outputs (150 mΩ typical) Advanced, Improved Body Diodes Half-Step and Full-Step Unipolar Drive Inputs Compatible with