PWM controller for boost and flyback rails
The TL2842BD-8 is a current-mode PWM controller from Texas Instruments designed for boost, flyback, and forward converter topologies. It drives a single transistor output at switching frequencies up to 500 kHz and delivers a maximum duty cycle of 96%, which is critical for flyback designs that need wide output regulation range without pulse skipping.
Operating from a 10 V to 30 V supply rail, the controller suits industrial power supplies fed from a regulated auxiliary bus or a loosely regulated bulk rail.
The tube packaging is typical for engineering samples and low-volume production runs; for higher volumes, verify the reel option with your sourcing desk.