TOPSwitch-JX cost effectively incorporates a 725 V power MOSFET, high-voltage switched current source, multi-mode PWM control, oscillator, thermal shutdown circuit, fault protection and other control circuitry onto a monolithic device.
Feature
- Energy efficient over entire load range
- Multi-mode PWM control maximizes efficiency at all loads
- Accurate programmable current limit
- Optimized line feed-forward for line ripple rejection
- Frequency jittering reduces EMI filter
- Fully integrated soft-start for minimum start-up stress
- Simplifies meeting design derating requirements
- User programmable for hysteretic/latching shutdown
- Simple fast AC reset
- Primary or secondary sensed
- Line undervoltage detection prevents turn-OFF glitches
- Line overvoltage shutdown extends line surge withstand
- Accurate thermal shutdown with large hysteresis
- Input pin for external current limit adjustment remote ON/OFF and device reset
- Input pin for selecting switching frequency 132kHz if connected to SOURCE pin
- Output MOSFET source connection for high-voltage power return
