XB-D5612
Dual H-bridge DC motor driver with integrated PWM control and comprehensive protection for robotics applications.
Product Overview
Description
The XB-D5612 is a dual H-bridge DC motor driver capable of driving two independent DC motors or one stepper motor.
It features integrated PWM control, reducing external component count and simplifying design.
The driver includes comprehensive protection features and current sensing for reliable operation.
Product Series
XB
Primary Application
Robotics and autonomous vehicles
Key Features
- Dual H-bridge for two DC motors
- High continuous current 3A per channel
- Low RDS(on) for high efficiency
- Integrated current sensing
- Wide voltage range 6V to 36V
- High-frequency PWM support
- Comprehensive protection functions
- Thermal enhanced package
Specifications
| Motor Type | DC Brushed (Dual) |
|---|---|
| Max Current | 3A per channel (continuous) |
| Voltage Range | 6V to 36V |
| RDS(on) | 150mΩ typical |
| PWM Frequency | Up to 100kHz |
| Current Sensing | Integrated |
| Protection | OCP, OTP, UVLO |
| Package | HTSSOP-28 |
Applications
Robotics and autonomous vehicles
Automotive and EV electronics
Industrial automation
Industrial automation and control
Toys and consumer products
Consumer electronics
Pump and fan control
Industrial automation and control
Automotive actuators
Automotive and EV electronics
FAE Expert Insights
"The XB-D5612 is a versatile dual motor driver ideal for robotics and automation projects. The integrated current sensing eliminates external sense resistors, reducing BOM cost and PCB space. I find the protection features particularly robust - the overcurrent protection responds quickly to protect both the driver and motor. The low RDS(on) keeps thermal dissipation manageable even at high currents. For robotics applications requiring multiple motors, this single IC can replace two separate drivers, simplifying design and reducing cost."
Dual driver with integrated current sensing
— Michael Zhang, BeiLuo
Frequently Asked Questions
Can XB-D5612 drive a single stepper motor?
Yes, the XB-D5612 can drive a single bipolar stepper motor by connecting the two H-bridges to the two motor coils. Configure the control signals to provide proper phase sequencing for stepper operation. While not as feature-rich as dedicated stepper drivers, this configuration works well for basic stepper applications where cost and simplicity are priorities.
Use XB-D5612 for basic stepper control. Consider dedicated stepper drivers for microstepping.
What is the PWM frequency range for XB-D5612?
XB-D5612 supports PWM frequencies from 1kHz to 100kHz. Lower frequencies (1-20kHz) are audible and suitable for applications where acoustic noise is not critical. Higher frequencies (20-100kHz) are above audible range but may increase switching losses. A good compromise is 20-25kHz for most applications. The driver includes programmable dead-time to prevent shoot-through at high switching frequencies.
Use 20-25kHz for balance of noise and efficiency. Increase for quieter operation.
How accurate is the integrated current sensing?
XB-D5612 integrated current sensing provides ±5% accuracy typical, suitable for overcurrent protection and basic current monitoring. The sensing is done through the low-side MOSFET RDS(on), eliminating external sense resistors. For applications requiring higher accuracy current control, consider adding external sense resistors or using drivers with dedicated current sense amplifiers.
Integrated sensing adequate for protection. Add external sense for precision control.
Can XB-D5612 operate from a 24V industrial supply?
Yes, XB-D5612 is well-suited for 24V industrial applications with its 6V to 36V operating range. The 24V supply provides good torque and speed characteristics for most industrial DC motors. Ensure adequate decoupling capacitance near the driver to handle switching transients. The driver's protection features are designed to handle industrial environments with voltage transients and noise.
XB-D5612 ideal for 24V industrial systems. Use proper decoupling and protection.
What is the thermal performance of XB-D5612?
XB-D5612 thermal performance depends on operating current, voltage, and thermal design. At 3A per channel with 24V supply, dissipation can reach 2-3W total. The HTSSOP package with exposed pad should be soldered to copper pours with thermal vias for heat spreading. Typical junction-to-ambient thermal resistance is 30-40°C/W with good PCB design. Monitor temperature during operation and derate current if necessary.
Use thermal vias and copper pours. Monitor temperature and derate if needed.