The TinySwitch-4 family of off-line switcher ICs feature line-compensated overload power protection, and reduce the maximum overload power that can be delivered into the load over the entire ac-input voltage range. The devices incorporate a 725-V MOSFET that allows 80% de-rating for high reflected voltage and high bus-voltage designs. Efficiency of greater than 70% at 5% load enables designers to meet the European standby specifications scheduled to take effect in 2013.
The line-compensated overload power protection of the off-line switcher ICs suits PC standby and appliances where high current demands from the load may be indicative of a fault. The devices also feature latching output OVP configurable for fast ac-reset. The switcher is a scalable family of devices covering an extended power range up to 36.5 W, and is available in PDIP, SOIC, and eSOP packages. (contact company for price and availability.)
By Paul O’Shea
Power Integrations , San Jose , CA
Sales 408-414-9200
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