PSD6204
Quad half-bridge driver for stepper and DC motors with 2A per channel and microstepping support
Product Overview
Description
The PSD6204 is a quad half-bridge motor driver capable of driving two stepper motors or four DC motors.
With 2A per channel and low RDS(on) of 0.25Ω, this driver provides efficient motor control for robotics, automation, and CNC applications.
The device supports full-step, half-step, and microstepping modes with integrated current regulation and decay control.
Product Series
PSD
Primary Application
CNC machines
Key Features
- Quad half-bridge configuration
- 2A continuous current per channel
- Low RDS(on) of 0.25Ω
- Full-step, half-step, and microstepping
- Integrated current regulation
- Adjustable decay modes
- SPI and step/dir interfaces
- Comprehensive protection
Specifications
| Motor Supply Voltage | 8V - 40V |
|---|---|
| Output Current | 2A continuous per channel |
| RDS(on) | 0.25Ω per switch typical |
| PWM Frequency | Up to 50 kHz |
| Current Sensing | Integrated with 0.15Ω sense |
| Logic Supply | 3.3V - 5V |
| Protection | Overcurrent, overtemperature, undervoltage |
| Temperature Range | -40°C to +85°C (Industrial), -40°C to +125°C (Automotive) |
| Package | HTSSOP-28, QFN-32 |
Applications
CNC machines
Electronic system design
3D printers
Electronic system design
Robotics
Electronic system design
Automated guided vehicles
Automotive and EV electronics
Textile machinery
Electronic system design
Packaging equipment
Electronic system design
FAE Expert Insights
"The PSD6204 is an excellent choice for stepper motor applications requiring microstepping. The integrated current regulation and decay control provide smooth, quiet operation. I've used this driver in 3D printer designs where the microstepping capability up to 1/16 step produces smooth motion and high-quality prints. The 0.25Ω RDS(on) keeps power dissipation low even at 2A continuous. The SPI interface allows real-time configuration of current levels and decay modes. For best thermal performance, I recommend using thermal vias under the package and adequate copper area for heat spreading."
Quad driver with microstepping and integrated current regulation
— Robert Zhang, BeiLuo