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TNY274-280 Datasheet(PDF) 1 Page - Power Integrations, Inc. |
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TNY274-280 Datasheet(HTML) 1 Page - Power Integrations, Inc. |
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1 / 24 page  TNY274-280 TinySwitch-III Family www.power.com December 2021 Energy-Efficient, Off-Line Switcher with Enhanced Flexibility and Extended Power Range This Product is Covered by Patents and/or Pending Patent Applications. Output Power Table Product3 230 VAC ± 15% 85-265 VAC Adapter1 Peak or Open Frame2 Adapter1 Peak or Open Frame2 TNY274P/G 6 W 11 W 5 W 8.5 W TNY275P/G 8.5 W 15 W 6 W 11.5 W TNY276P/G 10 W 19 W 7 W 15 W TNY277P/G 13 W 23.5 W 8 W 18 W TNY278P/G 16 W 28 W 10 W 21.5 W TNY279P/G 18 W 32 W 12 W 25 W TNY280P/G 20 W 36.5 W 14 W 28.5 W Table 1. Output Power Table. Notes: 1. Minimum continuous power in a typical non-ventilated enclosed adapter measured at +50 °C ambient. Use of an external heat sink will increase power capability. 2. Minimum peak power capability in any design or minimum continuous power in an open frame design (see Key Applications Considerations). 3. Packages: P: DIP-8C, G: SMD-8C. See Part Ordering Information. Product Highlights Lowest System Cost with Enhanced Flexibility • Simple ON/OFF control, no loop compensation needed • Selectable current limit through BP/M capacitor value • Higher current limit extends peak power or, in open frame applications, maximum continuous power • Lower current limit improves efficiency in enclosed adapters/chargers • Allows optimum TinySwitch-III choice by swapping devices with no other circuit redesign • Tight I2f parameter tolerance reduces system cost • Maximizes MOSFET and magnetics power delivery • Minimizes max overload power, reducing cost of transformer, primary clamp & secondary components • ON-time extension – extends low line regulation range/hold-up time to reduce input bulk capacitance • Self-biased: no bias winding or bias components • Frequency jittering reduces EMI filter costs • Pin-out simplifies heatsinking to the PCB • SOURCE pins are electrically quiet for low EMI Enhanced Safety and Reliability Features • Accurate hysteretic thermal shutdown protection with automatic recovery eliminates need for manual reset • Improved auto-restart delivers <3% of maximum power in short-circuit and open loop fault conditions • Output overvoltage shutdown with optional Zener • Line undervoltage detect threshold set using a single optional resistor • Very low component count enhances reliability and enables single-sided 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 EcoSmart™– Extremely Energy Efficient • Easily meets all global energy efficiency regulations • No-load <150 mW at 265 VAC without bias winding, <50 mW with bias winding • ON/OFF control provides constant efficiency down to very light loads – ideal for mandatory CEC regulations and 1 W PC standby requirements Applications • Chargers/adapters for cell/cordless phones, PDAs, digital cameras, MP3/portable audio, shavers, etc. • PC Standby and other auxiliary supplies • DVD/PVR and other low power set top decoders • Supplies for appliances, industrial systems, metering, etc. Description TinySwitch™-III incorporates a 700 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. Figure 1. Typical Standby Application. PI-4095-082205 Wide-Range High-Voltage DC Input D S EN/UV BP/M DC Output TinySwitch-III + + |
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