High Current Half Bridge with Over-Current Shutdown
This high-current half-bridge driver board is designed as a flexible, open-design platform that can be configured to meet a wide range of voltage, current, and switching-frequency requirements. The board includes an adjustable overcurrent protection circuit, allowing users to set the desired current limit by selecting an appropriate shunt resistor value and adjusting the onboard threshold trimmer.
An onboard current-sense shunt resistor is provided for over-current detection. Users can select the shunt resistor value according to the required current threshold. Gate resistors and optional gate-drive diodes can also be customized to optimize switching performance for specific PWM frequencies and load characteristics.
Features
- Load supply voltage up to 90 VDC (limited by installed DC bus capacitor ratings)
- Gate driver supply voltage: 15 V nominal (10 V to 20 V operating range)
- High dV/dt immunity: ±50 V/ns over the full temperature range
- 4 A source/sink gate drive capability
- Fast switching performance: 15 ns rise/fall time with 1 nF load
- Compatible with 3 V and 5 V TTL/CMOS logic inputs with hysteresis
- Integrated bootstrap diode
- Smart shutdown function
- Adjustable dead time via R9
- Adjustable overcurrent protection
- Interlock function to prevent shoot-through
- Comprehensive fault protection
- On Board LED for Logic Power
- Open-design architecture for easy customization and experimentation
- 4 x 4 mmPCB Mounting Holes
- PCB Dimensions 57.15 x 46.51 mm
Applications
- DC motor drives
- BLDC and PMSM motor control
- High-power PWM switching applications
- Half-bridge and full-bridge inverter systems
- Power electronics development and prototyping
- Industrial and robotics control systems
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This high-current half-bridge driver board is designed as a flexible, open-design platform that can be configured to meet a wide range of voltage, current, and switching-frequency requirements. The board includes an adjustable overcurrent protection circuit, allowing users to set the desired current limit by selecting an appropriate shunt resistor value and adjusting the onboard threshold trimmer.
An onboard current-sense shunt resistor is provided for over-current detection. Users can select the shunt resistor value according to the required current threshold. Gate resistors and optional gate-drive diodes can also be customized to optimize switching performance for specific PWM frequencies and load characteristics.
Features
- Load supply voltage up to 90 VDC (limited by installed DC bus capacitor ratings)
- Gate driver supply voltage: 15 V nominal (10 V to 20 V operating range)
- High dV/dt immunity: ±50 V/ns over the full temperature range
- 4 A source/sink gate drive capability
- Fast switching performance: 15 ns rise/fall time with 1 nF load
- Compatible with 3 V and 5 V TTL/CMOS logic inputs with hysteresis
- Integrated bootstrap diode
- Smart shutdown function
- Adjustable dead time via R9
- Adjustable overcurrent protection
- Interlock function to prevent shoot-through
- Comprehensive fault protection
- On Board LED for Logic Power
- Open-design architecture for easy customization and experimentation
- 4 x 4 mmPCB Mounting Holes
- PCB Dimensions 57.15 x 46.51 mm
Applications
- DC motor drives
- BLDC and PMSM motor control
- High-power PWM switching applications
- Half-bridge and full-bridge inverter systems
- Power electronics development and prototyping
- Industrial and robotics control systems
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