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Description
Energy Efficient, Off-line Switcher with Enhanced Flexibility and Extended Power Range
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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 under-voltage 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.
Preview of the first 3 pages of the data sheet
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282 buyer reviews from Canada
Daniel Anderson
Length of registration:7 years
I recently tested the TNY274PN integrated circuit from Utsource, and I am very pleased with the results. The circuit performed as expected, and the quality of the product was excellent. The instructions were easy to follow, and the circuit was easy to install. I was also impressed with the customer service I received from Utsource. They were very helpful and answered all of my questions quickly. I
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03/17/2023
franck HORDE
Length of registration:12 years
article conforme a l'annonce .
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04/16/2020
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TNY274PN
TNY274PN has several brands around the world that may have alternate names for TNY274PN due to regional differences or acquisition. TNY274PN may also be known as the following names:
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