Products: AC-DC ICs: iW1696

iW1696 Low-Power Off-Line Digital Green-Mode PWM Controller

Features

Primary-side feedback eliminates opto-isolators and simplifies design
Adaptive multi-mode PWM/PFM control improves efficiency
Quasi-resonant operation for highest overall efficiency & low EMI
Direct drive of low-cost BJT switch
Dynamic BJT base current control
Very tight constant voltage and constant current regulation with primary-side feedback
Complies with EPA 2.0 no load power consumption and average efficiency regulations
Low start-up current (10 μA typical)
Built-in soft start
Built-in short circuit protection and output overvoltage protection
Built-in current sense resistor short protection
No audible noise over entire operation range

Application

Low power AC/DC adapter/chargers for cell phones, PDAs and digital still cameras
Low power standby power supply

Datasheet
Application Note
White Paper
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