Low-Power Off-line Digital Green-Mode PWM Controller
iW1696
Low-Power Off-line Digital Green-Mode PWM Controller
1.0 Features
●● Primary-side feedback eliminates opto-isola...
Description
iW1696
Low-Power Off-line Digital Green-Mode PWM Controller
1.0 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 ●● 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 2.0 energy-efficiency specifications with ample margin
●● Able to meet < 30 mW no load power consumption
●● 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
2.0 Description
The iW1696 is a high perfor...
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