Integrated 600V2A half bridge drive PWM control chip

It is a high-voltage half bridge PWM control chip that integrates 5V reference power supply, oscillator, error amplifier, current limiting protection, soft start circuit, half bridge drive circuit and other functions. It is very suitable for high-voltage and high-power applications, and can support up to 600V power supply voltage input when combined with external high-voltage MOS transistors

Integrated 600V half bridge drive PWM controller

Similar to EG1165, it is a high-voltage half bridge PWM control chip that integrates functions such as a 5V reference power supply, oscillator, error amplifier, current limiting protection, soft start circuit, and half bridge drive circuit. It is suitable for applications in high-voltage and high-power situations, and can support up to 600V power supply voltage input with external high-voltage MOS transistors. Its parameters such as the turn-on voltage and turn off voltage at the VCC pin are different from those of EG1165

Push pull half bridge PWM control chip

The chip is equipped with a 5.1V reference voltage source, a 100Hz-500KHz wideband oscillator, a soft start circuit, an error amplifier, a PWM comparator, an undervoltage lockout circuit, and a power transistor output driver circuit. It has synchronous clock function and can work in master-slave mode, as well as synchronize with external system clock signals, providing great flexibility for design. Adding a resistor between the CT pin and the Discharge pin can achieve the function of adjusting the dead time

Current mode push-pull half bridge PWM control chip

By adopting a fixed frequency current mode control, the system's line voltage regulation rate and load response characteristics have been improved, simplifying the design of the control loop. Built in precision up to 1% bandgap adjustable reference voltage, high-frequency oscillator, error amplifier, differential current detection amplifier, undervoltage locking circuit, and soft start circuit, with functions such as push-pull conversion automatic symmetrical correction, parallel operation, external shutdown, dual pulse suppression, and dead time adjustment

Push pull half bridge PWM control chip

The chip is equipped with two error amplifiers, an external adjustable oscillator, a dead zone control comparator, a PWM function control circuit, a 5V precision ± 1% reference voltage, and a power transistor output driver circuit. The common mode voltage range of the two error amplifiers is -0.3V to Vcc-2V. The dead zone control comparator outputs a fixed offset voltage, resulting in a dead zone time of approximately 5%. The output transistor can be connected in two ways: common emitter or emitter follower output, so it can choose between double ended push-pull output or single ended output. In push-pull output mode, the two driving pulses differ by 180 degrees. In single ended mode, the two driving pulses are synchronous and in-phase