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iW1818 - Off-Line Digital Green-Mode Quasi-Resonant PWM Controller Integrated

Description

The iW1818 is a high performance AC/DC power supply control device that uses digital control technology to build peak current mode PWM flyback power supplies.

Features

  • This combination of features and integration simplifies design, improves efficiency, reduces EMI and lowers the bill of material cost. The iW1818 features a distinctive soft-start scheme, which allows for fast and yet smooth start-up with both small and large capacitive loads. It removes the need for a secondary feedback circuit while achieving excellent line and load regulation. It also eliminates the need for loop compensation components while maintaining stability over all operating conditio.

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Datasheet Details

Part number iW1818
Manufacturer Dialog Semiconductor
File Size 381.36 KB
Description Off-Line Digital Green-Mode Quasi-Resonant PWM Controller Integrated
Datasheet download datasheet iW1818 Datasheet
Additional preview pages of the iW1818 datasheet.

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Full PDF Text Transcription

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iW1818 Off-Line Digital Green-Mode Quasi-Resonant PWM Controller Integrated with Power BJT 1 Description The iW1818 is a high performance AC/DC power supply control device that uses digital control technology to build peak current mode PWM flyback power supplies. The device includes an internal power BJT, operates in quasi-resonant mode, and includes key built-in protection features. This combination of features and integration simplifies design, improves efficiency, reduces EMI and lowers the bill of material cost. The iW1818 features a distinctive soft-start scheme, which allows for fast and yet smooth start-up with both small and large capacitive loads. It removes the need for a secondary feedback circuit while achieving excellent line and load regulation.
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