PCA9629APW: Fm+ I2C-bus advanced stepper motor controller
The PCA9629A 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. Upon interrupt, the
PCA9629A can be programmed to automatically stop the motor, re-start motor, enable
extra steps or reverse the direction of rotation of motor.
Output wave train is programmable using control registers. The control registers are
programmed via the I²C-bus. Features built into the PCA9629A provide highly flexible
control of stepper motor, off-load bus master/micro and significantly reduce I²C-bus traffic.
These include control of step size, number of steps per single command, number of
actions from 1 to 255 or continuous rotations and direction of rotation. Re-start motor for
new speed and operation without waiting for motor stop. A ramp-up on start and/or
ramp-down on stop is also provided with re-enable ramp-up or ramp-down to change the
ramp rate curve on the fly.
The PCA9629A is available in a 16-pin TSSOP package and is specified over the
‑40 °C to +85 °C industrial temperature range.
Outline 3d SOT403-1
Data Sheets (1)
Application Notes (1)
Brochures (1)
Package Information (1)
Packing (1)
Supporting Information (1)
Ordering Information
| Product | Status | Package version | Interrupt | Power-on reset | Operating Temperature (Cel) | I2C-bus interface | No of Addresses | I2C-bus (kHz) | Operating voltage (VDC) | Details |
|---|
| PCA9629APW | Active | SOT403-1 | TSSOP16 | | | | | | | |
Package Information
| Product ID | Package Description | Outline Version | Reflow/Wave Soldering | Packing | Product Status | Part NumberOrdering code(12NC) | Marking | Chemical Content | RoHS / Pb Free / RHF | LeadFree Conversion Date | MSL | MSL LF |
|---|
| PCA9629APW | | SOT403-1 | SSOP-TSSOP-VSO-WAVE | Reel 13" Q1/T1 | Active | PCA9629APWJ
(9353 006 53118) | Standard Marking | PCA9629APW |    | Always Pb-free | 1 | 1 |
