Push-Pull Voltage Mode PWM Controller
This is a simple low voltage push-pull voltage mode PWM controller based on LM5032 chip from TI. The board is build around LM5032 chip and two 100V 7A MOSFETs. It can be used in simple DC-DC converter, Tesla Coil Driver etc. The frequency can be changed with resistor R5. Resistor R7 play roll of current sense. Capacitor C4 configures the soft start function. Output is square wave open drain.
Frequency Selection
- R5 16K Ohm = Frequency 339Khz
- R5 8.2K Ohm = Frequency 600Khz
- R5 26.7K Ohm = Frequency 200Khz
Features
- Power Supply 15V to 30V DC
- Maximum Load 1A (MOSFET 7A)
- Operating Frequency 339Khz
- Thermal Shutdown
- Over Current Protection 1A
- PCB Dimensions 27.31 x 21.75 mm
The LM5033 high-voltage PWM controller contains all the features necessary to implement push-pull, half-bridge, and full-bridge topologies. Applications include closed-loop voltage mode converters with a highly regulated output voltage, or open-loop DC transformers such as an Intermediate bus converter (IBC) with an efficiency greater than 95%. Two alternating gate driver outputs with a specified deadtime are provided.
The LM5033 includes a start-up regulator that operates over a wide input range from 15 V to 100 V. Additional features include: precision voltage reference output, current limit detection, remote shutdown, soft start, sync capability, and thermal shutdown. This high-speed IC has total propagation delays less than 100 ns and a 1-MHz capable oscillator.
Connections
CN1: Pin 1,2= GND, Pin 3,4 = +Power, Pin 5 = Drain/Output2, Pin 6 = Drain/Output1
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This is a simple low voltage push-pull voltage mode PWM controller based on LM5032 chip from TI. The board is build around LM5032 chip and two 100V 7A MOSFETs. It can be used in simple DC-DC converter, Tesla Coil Driver etc. The frequency can be changed with resistor R5. Resistor R7 play roll of current sense. Capacitor C4 configures the soft start function. Output is square wave open drain.
Frequency Selection
- R5 16K Ohm = Frequency 339Khz
- R5 8.2K Ohm = Frequency 600Khz
- R5 26.7K Ohm = Frequency 200Khz
Features
- Power Supply 15V to 30V DC
- Maximum Load 1A (MOSFET 7A)
- Operating Frequency 339Khz
- Thermal Shutdown
- Over Current Protection 1A
- PCB Dimensions 27.31 x 21.75 mm
The LM5033 high-voltage PWM controller contains all the features necessary to implement push-pull, half-bridge, and full-bridge topologies. Applications include closed-loop voltage mode converters with a highly regulated output voltage, or open-loop DC transformers such as an Intermediate bus converter (IBC) with an efficiency greater than 95%. Two alternating gate driver outputs with a specified deadtime are provided.
The LM5033 includes a start-up regulator that operates over a wide input range from 15 V to 100 V. Additional features include: precision voltage reference output, current limit detection, remote shutdown, soft start, sync capability, and thermal shutdown. This high-speed IC has total propagation delays less than 100 ns and a 1-MHz capable oscillator.
Connections
CN1: Pin 1,2= GND, Pin 3,4 = +Power, Pin 5 = Drain/Output2, Pin 6 = Drain/Output1
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