TB6219
Feature
- Able to drive both windings of bipolar stepper motor
- Output current up to 750 m A each winding
- Wide voltage range: 10 V to 46 V
- Half-step, full-step and micro-stepping mode
PDIP24 (20+2+2)
SO24 (20+2+2)
- Built-in protection diodes
- Internal PWM current control
- Low output saturation voltage
- Designed for unstabilized motor supply voltage
- Internal thermal shutdown
Description
The TB6219 is a bipolar monolithic integrated circuits intended to control and drive both winding of a bipolar stepper motor or bidirectionally control two DC motors. The TB6219 with a few external ponents form a plete control and drive circuit for LS-TTL or microprocessor controlled stepper motor system. The power stage is a dual full bridge capable of sustaining 46V and including four diodes for current recirculation.
A cross conduction protection is provided to avoid simultaneous cross conduction during switching current direction.
An internal pulse-width-modulation (PWM) controls the...
