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IRISA6131 Datasheet INTEGRATED SWITCHER

Manufacturer: International Rectifier (now Infineon)

Overview: IRIS-A6131 •Small sized 8-pin DIP type full molded package, optimum IC for lowheight SMPS •Off-timer circuit is provided on the monolithic control IC • Low start-up circuit current (10uA max) Package Outline •Low circuit current at operation (1.5mA typ) • Avalanche energy guaranteed MOSFET with high VDSS The built-in power MOSFET simplifies the surge absorption circuit since the MOSFET guarantees the avalanche energy. No VDSS de-rating is required. •Built-in Start-up circuit (the power loss in the start-up circuit is reduced by cutting off the start-up circuit after the IC starts its operation.) •Auto Burst Stand-by (realizing input power<0.

General Description

s IRIS-A6131 3.95Ω 100/120±15% IRIS-A6131 is a hybrid IC consisting of a power MOSFET and a controller IC, designed for PRC fly-back converter type SMPS (Switching Mode Power Supply) applications, applicable for PRC operation for small power SMPS.

This IC realizes downsizing and standardizing of a power supply system reducing external component count and simplifying the circuit design.

Note: PRC is abbreviation for “Pulse Ratio Control” (On-width control with fixed OFF-time).