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TNY279PN +BOM

AC/DC Converters 25W 85-265 VAC 32W/230 VAC

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TNY279PN General 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.

tny279pn tny279pn

Key Features

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.

tny279pn

Application

• 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.

Specifications

Category Integrated Circuits (ICs)Power Management (PMIC)AC DC Converters, Offline Switches Series TinySwitch®-III
Output Isolation Isolated Internal Switch(s) Yes
Voltage - Breakdown 700V Topology Flyback
Voltage - Supply (Vcc/Vdd) - Duty Cycle 65%
Frequency - Switching 132kHz Power (Watts) 32 W
Fault Protection Current Limiting, Open Loop, Over Temperature, Over Voltage, Short Circuit Control Features EN
Operating Temperature -40°C ~ 150°C (TJ) Mounting Type Through Hole
Base Product Number TNY279

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Packing

AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

Warranty Warranty
365-Day Product Quality Guarantee

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Quality Guarantee

We promise to provide 365 days quality assurance service for all our products.

Ratings and Reviews

More
C
C**b 02/26/2024

Delivery is fast, workers-one censer has already restored.

16
B
B**y 01/25/2024

Delivery almost 5 days. They threw it in the mailbox. Quality is normal.

3
E
E**n 11/24/2023

Delivery a little more than a month. In the mailbox. The package is not broken.

12

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In Stock: 7,369

Minimum Order: 1

Qty. Unit Price Ext. Price
1+ $0.845 $0.84
10+ $0.763 $7.63
50+ $0.675 $33.75
100+ $0.624 $62.40
500+ $0.602 $301.00
1000+ $0.591 $591.00

The prices below are for reference only.

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