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IW2202 - Digital SMPS Controller

Description

The iW2202 is a digital switching mode power supply controller for PFC applications.

Its is typically used with the PFC-corrected BIFRED (Boost Integrated with Flyback Rectifier/Energy storage DC/DC) topology, shown in Figure 1.

Features

  • PulseTrain™ regulation allows voltage, current and PFC to be controlled independently Primary-only feedback eliminates optoisolators and simplifies design No loop compensation components required ±1% regulation over a 100:1 load variation Built-in soft-start Adaptive pulseTrain regulation keeps the bulk capacitor voltage below 400V Operates in critical discontinuous conduction mode (CDCM) Low start-up and supply current Reduced EMI nois.

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Datasheet Details

Part number IW2202
Manufacturer iWatt Corporation
File Size 337.96 KB
Description Digital SMPS Controller
Datasheet download datasheet IW2202 Datasheet
Additional preview pages of the IW2202 datasheet.

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    Full PDF Text Transcription

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    www.DataSheet.co.kr iW2202 Digital SMPS Controller Preliminary Data 1 Application Blue-Angel-compliant PFC-controlled switch-mode power supplies up to 150 watts. 4 Description The iW2202 is a digital switching mode power supply controller for PFC applications. Its is typically used with the PFC-corrected BIFRED (Boost Integrated with Flyback Rectifier/Energy storage DC/DC) topology, shown in Figure 1. The BIFRED topology is a singlestage, single-switch topology that combines a boost converter with an isolated flyback converter, achieving power-factor correction with a low parts count. An iW2202-based power supply looks like a resistor to the AC line.
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