TOP201
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
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 k Hz oscillator, high voltage start-up bias circuit, bandgap derived reference, bias shunt regulator/error amplifier for loop pensation and fault protection circuitry. pared to discrete MOSFET and controller or self oscillating (RCC) switching converter solutions, a TOPSwitch integrated circuit can reduce total cost, ponent count, size, weight and at the same time...
