PCA9629 Description
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:.
PCA9629 Key Features
- Generate motor coil drive phase sequence signals with four outputs for use with external high current drivers to off-loa
- Four balanced push-pull type outputs capable of sinking 25 mA or sourcing 25 mA for glueless connection to external high
- Up to 1000 pF loads with 100 ns rise and fall times
- Built-in oscillator requires no external ponents
- 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
- Programmable ramp-up on start and ramp-down to stop
- Programmable steps and rotation control
- Sensor enabled drive control: linked to interrupt from I/O pins