LYT4218L

Description：IC OFFLINE SW MULT TOP 7FESIP
Series：LYTSwitch™-4
Mfr：Power Integrations
Package：Tube

SKU:80dc1e0e8295 Category: AC DC Converters, Offline Switchers Brand: Power Integrations

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Product introduction

LYT4218L is listed in the AC DC Converters, Offline Switchers range at ChipApex. The manufacturer field lists Power Integrations. Its product description is IC OFFLINE SW MULT TOP 7FESIP. Review the specifications below when checking this part for your BOM.

AC DC Converters, Offline Switchers specifications for LYT4218L

Description：IC OFFLINE SW MULT TOP 7FESIP
Series：LYTSwitch™-4
Mfr：Power Integrations
Package：Tube
Output Isolation：Isolated
Internal Switch(s)：Yes
Voltage - Breakdown：725V
Topology：Flyback, Step-Down (Buck), Step-Up (Boost)
Voltage - Start Up：-
Voltage - Supply (Vcc/Vdd)：-
Duty Cycle：99.90%
Frequency - Switching：140kHz
Fault Protection：-
Control Features：-
Operating Temperature：-40°C ~ 150°C (TJ)
Package / Case：7-SSIP, 6 Leads, Exposed Pad, Formed Leads
Supplier Device Package：eSIP-7F
Mounting Type：Through Hole
Grade：-
Qualification：-
Power (Watts)：78 W

AC DC Converters, Offline Switchers datasheet and documents for LYT4218L

LYT4218L

AC DC Converters, Offline Switchers Overview

The LYT4218L is an offline switcher IC from the Power Integrations LYTSwitch-5 family, designed for high-performance LED lighting applications. It integrates a primary-side controller, a 725V MOSFET, and system-level protection into a single package. The device supports Flyback, Buck, and Boost topologies with a switching frequency range of 124 kHz to 140 kHz. It features an eSIP-7F package and includes internal isolation capabilities.

AC DC Converters, Offline Switchers Feature Summary

Integrates primary-side control, power switch, and protection circuitry
Supports multiple converter topologies including Flyback, Buck, and Boost
Includes system-level protection mechanisms for enhanced reliability

AC DC Converters, Offline Switchers Applications

High-power LED driver designs
Offline AC/DC conversion systems
Compact power supply implementations requiring integrated solutions

AC DC Converters, Offline Switchers Procurement Notes

Verify component authenticity through authorized distributors due to obsolete status. Confirm package integrity and pin alignment against official datasheet specifications before integration. Ensure storage conditions meet humidity sensitivity requirements to prevent damage prior to assembly.

AC DC Converters, Offline Switchers Selection Notes

Evaluate thermal performance requirements given the integrated power switch. Verify input voltage ranges match application needs. Consider the fixed switching frequency characteristics when designing magnetic components. Assess compatibility with existing PCB layouts for the eSIP-7F package footprint.

AC DC Converters, Offline Switchers Part Context

Part of the LYTSwitch-5 series offering combined PFC and constant current output capabilities. Designed for isolated and non-isolated topologies. Represents a transition in Power Integrations' LED driver portfolio towards higher integration levels.

AC DC Converters, Offline Switchers Replacement Considerations

LYT4218E2 serves as a functional substitute within the same product family. Both share similar architectural features and target applications. Verify pinout compatibility and electrical parameter alignment during substitution planning.

How to buy

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Payment Method

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Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

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Mode of Transportation

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Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.