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IW1706 - Low-Power Off-Line Digital Green-Mode PWM Controller

Description

Primary-side feedback eliminates opto-isolators and simplifies design Adaptively controlled soft start-up enables fast and smooth start-up for a wide range of capacitive loads (from 330 μF to 6000 μF) Very tight constant voltage regulation EZ-EMI ® design

Features

  • 2.0.

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Datasheet Details

Part number IW1706
Manufacturer iWatt
File Size 599.79 KB
Description Low-Power Off-Line Digital Green-Mode PWM Controller
Datasheet download datasheet IW1706 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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iW1706 Low-Power Off-Line Digital Green-Mode PWM Controller 1.0 Features 2.0 Description ●● Primary-side feedback eliminates opto-isolators and simplifies design ●● Adaptively controlled soft start-up enables fast and smooth start-up for a wide range of capacitive loads (from 330 μF to 6000 μF) ●● Very tight constant voltage regulation ●● EZ-EMI ® design enhances manufacturability ●● Intrinsically low common mode noise ●● Optimized 72 kHz maximum PWM switching frequency achieves best size and efficiency ●● Adaptive multi-mode PWM/PFM control improves efficiency ●● Quasi-resonant operation for highest overall efficiency ●● Direct drive of low-cost BJT switch ●● Dynamic base current control ●● No external compensation components required ●● Complies with EPA 2.
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