PCA9629APWJ

PCA9629APWJ is a Fm+ I2C-bus advanced stepper motor controller. It is an I²C-bus controlled low-power CMOS device that provides all the logic and control required to drive a four-phase stepper motor. PCA9629A is intended to be used with external high-current drivers to drive the motor coils. The PCA9629A supports three stepper motor drive formats: one-phase (wave drive), two-phase, and half-step. In addition, when used as inputs, four general purpose input/outputs (GPIOs) allow sensing of logic level output from optical interrupter modules and generate active LOW interrupt signal on the INT pin of PCA9629A. This is a useful feature in sensing home position of motor shaft or reference for step pulses. Application includes amusement machines, gaming and slot machines, consumer home appliances or toys, industrial automation, HVAC and building climate control systems, robotics, security and surveillance cameras, variable-speed fans and pumps, vending machines.

• Built-in 1MHz oscillator requires no external components
• Stepper motor drive control logic, programmable ramp-up on start and ramp-down to stop
• Programmable re-enable ramp-up or ramp-down to change ramp rate curve on the fly
• Programmable re-start motor with new speed and operation while motor is still running
• Programmable loop delay timer for motor reversal mode, direction control of motor shaft
• Programmable watchdog timer with option to generate interrupt, reset device or stop motor
• Sensor enabled drive control: linked to interrupt from GPIO pins
• Programmable time-out timer to set all outputs to zeros when motor is stopped
• Latch-up testing is done to JEDEC standard JESD78 which exceeds 100mA
• Operating temperature range from -40°C to +85°C, TSSOP16 package