Power Integrations LNK304GN-TL Off-Line Switcher IC PDIP-8

$27.15

SKU: C3-SC20531
EAN: 3562104172443

LNK304GN-TL off-line switcher IC in PDIP-8 package from Power Integrations. For buck, buck-boost and flyback designs under 360 mA.

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The Power Integrations LNK304GN-TL Off-Line Switcher IC is a PDIP-8 power switching device designed for non-isolated power supplies with output currents under 360 mA.

Overview

The LNK304GN-TL is part of the LinkSwitch-TN family of off-line switcher ICs. It integrates a 700 V power MOSFET, oscillator, control circuitry and protection features onto a single monolithic chip, designed to provide a low component count and high energy efficiency. It is intended as a replacement for traditional linear and capacitor-fed non-isolated power supplies in applications with output currents under 360 mA.

The IC derives its start-up and operating power directly from the voltage on the DRAIN pin. This removes the need for a separate bias supply and its associated circuitry in buck or flyback converter configurations. Combined with a fully featured auto-restart circuit, this helps protect against fault conditions such as short circuits and open loops, supporting system safety while reducing the number of external components required.

Key Features

EcoSmart Technology: Offers high energy efficiency for eco-conscious designs.
High Integration: Combines a power switch, control and protection in one IC, reducing system cost and component count.
Enhanced EMI Performance: Integrated frequency jittering reduces electromagnetic interference by approximately 10 dB, which can minimise the cost and size of required EMI filters.
Robust Protection: Features cycle-by-cycle current limiting, thermal shutdown and auto-restart.
Stable Performance: Provides tight output tolerances with negligible variation over temperature.

Topologies

The device supports Buck, Buck-Boost and Flyback topologies, giving designers flexibility across different power supply configurations. It is housed in a plastic PDIP-8 package.

Dimensions

Listed dimensions are 3 (width), 2.5 (depth) and 4 (height), with a product weight of 2.268 gm.

Choose the Power Integrations LNK304GN-TL Off-Line Switcher IC when a compact, integrated switching solution is required for non-isolated buck, buck-boost or flyback power supply designs with output currents under 360 mA.

Technical Specifications

700 VIntegrated Power MOSFET

Under 360 mAApplication Output Current

3Width

2.5Depth

Physical

Height: 4
Weight: 2.268 gm

Other

Series: LinkSwitch-TN
Package: PDIP-8
Topologies: Buck, Buck-Boost, Flyback
Special Feature: EcoSmart Technology
Special Feature: Frequency jittering for approximately 10 dB EMI reduction
Special Feature: Cycle-by-cycle current limiting
Special Feature: Thermal shutdown
Special Feature: Auto-restart protection
Special Feature: Start-up and operating power derived from the DRAIN pin, no separate bias supply required

Documents

DatasheetFull technical specification

Off-Line Switcher IC

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Applications

Non-isolated power supplies with output currents under 360 mA
Replacement for linear and capacitor-fed non-isolated power supplies
Buck converter configurations
Buck-Boost converter configurations

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Power Integrations LNK304GN-TL Off-Line Switcher IC PDIP-8

Technical Specifications

Physical

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