Enhanced Safety and Reliability Features

• Accurate hysteretic thermal shutdown protection with automatic

recovery eliminates need for manual reset

• Auto-restart delivers <3% of maximum power in short-circuit and

open loop fault conditions

• Output overvoltage shutdown with optional Zener

• Very low component count enhances reliability and enables singlesided

printed circuit board layout

• High bandwidth provides fast turn on with no overshoot and excellent

transient load response

• Extended creepage between DRAIN and all other pins improves field

• reliability

Applications

• Supplies for appliances, home building automation, PC standby and

other auxiliary power supplies.

Description

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