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TNY266PN IC – Power Integrations Off Line Switcher IC

72.00 Excluding tax

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The TYN266PN integrates  a 700 V power MOSFET, oscillator, high voltage switched current source, current limit and thermal shutdown circuitry onto a monolithic device. The start-up and operating power are derived directly from the voltage on the DRAIN pin, eliminating the need for a bias winding and associated circuitry. In addition, the Tiny Switch-II devices incorporate auto-restart, line under voltage sense, and frequency jittering. An innovative design minimizes audio frequency components in the simple ON/OFF control scheme to practically eliminate audible noise with standard taped/varnished transformer construction. The fully integrated auto-restart circuit safely limits output power during fault conditions such as output short circuit or open loop, reducing component count and secondary feedback circuitry cost. An optional line sense resistor externally programs a line under voltage threshold, which eliminates power down glitches caused by the slow discharge of input storage capacitors present in applications such as standby supplies. The operating frequency of 132 kHz is jittered to significantly reduce both the quasi-peak and average EMI, minimizing filtering cost.

Features:-

•  Fully integrated auto-restart for short circuit and open loop fault protection – saves external component costs

•  Built-in circuitry practically eliminates audible noise with ordinary dip-varnished transformer

•  Programmable line under voltage detect feature prevents power on/off glitches – saves external components

•  Frequency jittering dramatically reduces EMI (~10 dB)– minimizes EMI filter component costs

•  132 kHz operation reduces transformer size – allows use of EF12.6 or EE13 cores for low cost and small size

•  Very tight tolerances and negligible temperature variation on key parameters eases design and lowers cost

•  Lowest component count switcher solution

•  Expanded scalable device family for low system cost

Specification:-

Symbol Parameter Min Type Max Units
VBP BYPASS Pin Voltage 5.6 5.85 6.15 V
VBPH BYPASS Pin Voltage Hysteresis 0.80 0.95 1.2 V
tLEB Leading Edge Blanking Time 170 215 ns
TSD Thermal Shutdown Temperature 125 135 150 °C
TSHD Thermal Shutdown Hysteresis 70 °C

TNY266PN-IC Datasheet

* product image for illustration purposes only. actual product may vary.

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