Power Integrations Expands TinySwitch®-II IC Family
Power Integrations Inc. (San Jose, CA), a leader in power conversion semiconductor technology, announced the expansion of TinySwitch-II, the company’s low-power family of off-line switcher ICs, with two new device family members, the TNY263 and TNY265. Applications for the newest TinySwitch-II family members include battery chargers/adapters for personal electronics, home appliances, television standby and other auxiliary power supplies. Other TinySwitch-II devices also address DVD players, set-top boxes, PC standby and open-frame power supplies up to 23 W.
The TNY263 offers a lower-cost, lower-power solution compared to TNY264 for universal input adapters up to 3.7 W or up to 7.5 W for 230 V input open-frame designs. The TNY265 provides a cost-optimum solution for power levels that fall inbetween the capabilities of existing TNY264 and TNY266 by addressing universal input adapters up to 5.5 W or up to 11 W for 230 V input open-frame supplies. The TinySwitch-II family integrates a 700 V power MOSFET, an oscillator with simple on/off control, and current limit and thermal protection circuitry onto a single CMOS chip. Other built-in features include auto-restart for short-circuit and open-loop fault protection, frequency jittering for low EMI filtering cost, programmable line under-voltage detection, and circuitry to eliminate audible transformer noise. Key parameters are designed with tight tolerances and negligible temperature variation. The internal switching frequency of 132 kHz reduces transformer size, allowing the use of low cost EF12.6 or EE13 cores.
Pricing in 1,000-piece quantities for the TNY263P and TNY265P with the plastic DIP-8 package option is $0.69 and $0.80 per unit, respectively. A surface-mountable SMD-8 package option is also available. Production quantities are available four weeks ARO.
