TinySwitch-LT

TinySwitch™-LT incorporates a 650 V power MOSFET, oscillator, high-voltage switched current source, current limit (user selectable) and thermal shutdown circuitry. The IC family uses an ON/OFF control scheme and offers a design flexible solution with a low system cost and extended power capability.

Product Highlights:

• 650 V rated integrated MOSFET
• Simple ON/OFF control, no loop compensation needed
• Selectable current limit through BP/M capacitor value
• Higher current limit extends peak power or, in open frame applications, maximum continuous power
• Tight I²f parameter tolerance reduces system cost; minimizes maximum overload power, reducing cost of transformer, primary clamp & secondary components
• On-time extension—extends low line regulation range/hold-up time to reduce input bulk capacitance
• Frequency jittering reduces EMI filter costs

Applications:

• Appliances
• Home building automation
• PC standby and other auxiliary power supplies