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IW1697 - Low-Power Off-Line Digital Green-Mode PWM Controller

Features

  • Primary-side feedback eliminates opto-isolators and simplifies design.
  • No-load power consumption < 20 mW at 230 Vac with typical.

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Datasheet Details

Part number IW1697
Manufacturer iWatt
File Size 599.54 KB
Description Low-Power Off-Line Digital Green-Mode PWM Controller
Datasheet download datasheet IW1697 Datasheet
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Full PDF Text Transcription

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iW1697 Low-Power Off-Line Digital Green-Mode PWM Controller 1.0 Features ●● Primary-side feedback eliminates opto-isolators and simplifies design ●● No-load power consumption < 20 mW at 230 Vac with typical application circuit (5 star rating) ●● Active start-up scheme enables fastest possible startup ●● Fast dynamic load response ●● Adaptive multi-mode PWM/PFM control improves efficiency ●● Quasi-resonant operation for highest overall efficiency ●● EZ-EMI ® design to easily meet global EMI standards ●● Direct drive of low-cost BJT switch ●● Dynamic base current control ●● Very tight constant voltage and constant current regulation with primary-side-only feedback ●● No external compensation components required ●● Complies with EPA 2.
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