• Part: IW1678
  • Description: Low-Power Off-line Digital Green-Mode PWM Controller
  • Manufacturer: iWatt
  • Size: 574.33 KB
Download IW1678 Datasheet PDF
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Datasheet Summary

Low-Power Off-line Digital Green-Mode PWM Controller 1.0 Features 2.0 Description - - Primary-side feedback eliminates opto-isolators and simplifies design - - 64-kHz PWM switching frequency - - No-load power consumption < 100 mW at 230 Vac with tight dynamic load transient response - - Able to meet < 30 mW no-load power consumption with large value pre-load resistor - - 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...