Datasheet
OC06 - Stepper Driver (DRV8825,
PCA9554A)
Front
Back
☒
CHIP
Main Category Output
Sub Category Control
Introduced 1 January 2017
Current version 1.0.0
Current version
date
1 January 2017
Dimensions
Size 2x2U (32x32mm)
Weight 6 g
Height 12.1/8.4/2.1 mm
Non-
☒
BUS Connections
North Terminal Block
Main Chip Set
Main Chip PCA9554A/DRV8825
I²C Configuration
Default Address 0x38
Alternative
Addresses
0x39; 0x3A; 0x3B; 0x3D; 0x3E;
0x3F
Change Setting Solder Pads
XinaBox Datasheet OC06 - Stepper Driver
Contents
1 Overview
2 Applications
3 Specifications
4 External Links
Overview
The OC06 xCHIP uses DRV8825 Stepper Motor Controller to precisely drive and control a
connected stepper motor. The DRV8825 is interfaced with I2C through a PCA9554A I/O Expander
which provides all the required control signals.
Product Highlights
Stepper Motor Controller/Driver
Connects a Single Stepper via Screw Terminals
External Motor Supply Input via Screw Terminal (Max 47 V)
2.5 A Continuous Motor Output Current
Built-In Microstepping Indexer
Up to 1/32 Microstepping
Applications
Robotics
Precision Control
Accurate Positional Control Systems
CNC Machines
Specifications
DRV8825
PWM Microstepping Stepper Motor Driver:
1. Built-In Microstepping Indexer
2. Up to 1/32 Microstepping
Multiple Decay Modes:
1. Mixed Decay
2. Slow Decay
3. Fast Decay
8.2-V to 45-V Operating Supply Voltage Range
2.5-A Maximum Drive Current at 24 V and
Low Current Sleep Mode
Protection Features:
1. Overcurrent Protection (OCP)
2. Thermal Shutdown (TSD)
3. VM Undervoltage Lockout (UVLO)
4. Fault Condition Indication Pin (nFAULT)
PCA9554A
400-kHz Fast I
2
C Bus
Three Hardware Address Pins Allow up to Eight I
2
C Addresses
Internal Power-On Reset
No Glitch on Power Up
Latched Outputs With High-Current Drive
External Links
GitHub
OC06 on GitHub (https://github.com/xinabox/xOC06)