My 9892 Datasheet -

Uses Pulse Width Modulation (PWM) or phase-angle control to efficiently adjust output without excessive heat.

Now go forth and design—or repair—with confidence. You have mastered the art of the datasheet. my 9892 datasheet

2000W (suitable for high-load resistive devices). Uses Pulse Width Modulation (PWM) or phase-angle control

If you are diagnosing a device with a TDA9892 chip: my 9892 datasheet

Keep a copy of your specific 9892 datasheet in your project folder. Bookmark the manufacturer’s product change notice (PCN) page. And remember: an hour spent reading the datasheet saves a day of debugging.