PCA9629 - NXP Semiconductors

PCA9629 Fm+ I2C-bus stepper motor controller

The PCA9629 is an I2C-bus controlled low-power CMOS device that provides all the logic and control required to drive a four phase stepper motor. PCA9629 is intended to be used with external high current drivers to drive the motor coils. The PCA9629 supports three stepper motor drive formats: one-phase (wave drive), two-phase, and half-step. In addition, when.

Features

 Generate motor coil drive phase sequence signals with four outputs for use with external high current drivers to off-load CPU
 Four balanced push-pull type outputs capable of sinking 25 mA or sourcing 25 mA for glueless connection to external high current drivers needed to drive motor coils  Up to 1000 pF loads with 100 ns rise and fall times
 Built-in oscillator requires no external components
 Stepper motor drive control logic
 One-phase (wave drive), two-phase, and half-step drive format logic level outputs
 Programmable step rate: 344.8 kpps to 0.3 pps with 5 % accuracy
 Programm.