Self-Oscillating Half Bridge Module
This is an automotive-grade self-oscillation 50% duty cycle half-bridge module built using the AUIR2085S chip from Infineon. The project consists of 2 x N-channel MOSFETs, and the module provides a primary side control solution to enable Half-Bridge DC-bus converters. The module is a self-oscillating half-bridge driver with 50% duty cycle ideally suited for 10V – 15V half-bridge DC-bus converters. The board is also suitable for push-pull converters. Each channel frequency is equal to fOSC, which can be set by selecting RT (R2+PR1) & CT-(C7), Dead-time can be controlled through proper selection of CT range from 50ns to 200ns. Internal soft-start increases the pulse width during power-up and maintains pulse width matching for the high and low outputs throughout the start-up cycle. Typically, the soft-start duty cycle varies beginning from 5-10% ramping up to about 50% over 1000 cycles. The AUIR2085S initiates a soft start at power up and after every overcurrent condition. Undervoltage lockout prevents operation if VCC is less than 7.5V.
Features
- Power Supply 10V to 14V DC
- Integrated 50% duty cycle oscillator and half-bridge driver
- Adjustable switching frequency 84Khz to 260Khz
- Undervoltage lockout prevents operation if VCC is less than 7.5V.
- +/- 1A drive current capability optimized for low-charge MOSFETs
- Adjustable dead-time 50ns – 200ns (Read Data Sheet for More Info)
- High and low side pulse width matching to +/- 25ns
- Adjustable overcurrent protection (Shunt Resistor Value)
- Over Current Shut Down Threshold 300mV
- Over Current Shutdown Delay 200nS
- Turn-on Rise Time 40nS
- Turn-off Fall Time 20nS
- Undervoltage lockout and internal soft start
- PCB Dimensions 40.16 x 21.27 mm
Applications
- DC-DC Converters, Push-Pull Drivers
- High Voltage Converters
- HEV Auxiliary Converter
- Battery Management Converters
Share
This is an automotive-grade self-oscillation 50% duty cycle half-bridge module built using the AUIR2085S chip from Infineon. The project consists of 2 x N-channel MOSFETs, and the module provides a primary side control solution to enable Half-Bridge DC-bus converters. The module is a self-oscillating half-bridge driver with 50% duty cycle ideally suited for 10V – 15V half-bridge DC-bus converters. The board is also suitable for push-pull converters. Each channel frequency is equal to fOSC, which can be set by selecting RT (R2+PR1) & CT-(C7), Dead-time can be controlled through proper selection of CT range from 50ns to 200ns. Internal soft-start increases the pulse width during power-up and maintains pulse width matching for the high and low outputs throughout the start-up cycle. Typically, the soft-start duty cycle varies beginning from 5-10% ramping up to about 50% over 1000 cycles. The AUIR2085S initiates a soft start at power up and after every overcurrent condition. Undervoltage lockout prevents operation if VCC is less than 7.5V.
Features
- Power Supply 10V to 14V DC
- Integrated 50% duty cycle oscillator and half-bridge driver
- Adjustable switching frequency 84Khz to 260Khz
- Undervoltage lockout prevents operation if VCC is less than 7.5V.
- +/- 1A drive current capability optimized for low-charge MOSFETs
- Adjustable dead-time 50ns – 200ns (Read Data Sheet for More Info)
- High and low side pulse width matching to +/- 25ns
- Adjustable overcurrent protection (Shunt Resistor Value)
- Over Current Shut Down Threshold 300mV
- Over Current Shutdown Delay 200nS
- Turn-on Rise Time 40nS
- Turn-off Fall Time 20nS
- Undervoltage lockout and internal soft start
- PCB Dimensions 40.16 x 21.27 mm
Applications
- DC-DC Converters, Push-Pull Drivers
- High Voltage Converters
- HEV Auxiliary Converter
- Battery Management Converters
Dotfry has partnered with reputed logistic partners for our logistic services, to ensure that all our products reach you in the best of conditions with no damages. We ensure you that we use packaging materials of the best quality, which is sourced from reliable vendors, and ensure thorough testing of package worthiness before using them for shipping and delivery of our products.
Related Products
