TinySwitch-4 Family Design Guide

This whitepaper discusses the TinySwitch-4 family Switcher ICs. The TinySwitch-4 family is a highly integrated monolithic off-line switcher ICs designed for power supplies up to 28.5 W for universal input voltage range (85 VAC – 265 VAC) and 36.5 W for high-line input (230 VAC) applications. Typical applications include PC standby and auxiliary supplies for appliances, industrial sub-systems, and metering. Innovative features such as line compensated overload protection, on-time extension, latching output overvoltage shutdown, selectable current limit, and line Under-voltage greatly simplify design, reducing engineering time and system cost while providing complete system-level protection.

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