Description
The TOPSwitch family implements, with only three pins, all functions necessary for an off-line switched mode control system: high voltage N-channel power MOSFET with controlled turn-on gate driver, voltage mode PWM controller with integrated 100 kHz oscillator, high voltage start-up bias circuit, bandgap derived reference, bias shunt regulator/error amplifier for loop compensation and fault protection circuitry.
Features
- Auto-restart and cycle by cycle current limiting functions
handle both primary and secondary faults.
- On-chip latching thermal shutdown protects the entire
system against overload
Highly Versatile.
- Implements Buck, Boost, Flyback or Forward topology.
- Easily interfaces with both opto and primary feedback.
- Supports continuous or discontinuous mode of operation.