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iW1709

Dialog Semiconductor
Part Number iW1709
Manufacturer Dialog Semiconductor
Description Off-Line Digital Green-Mode Quasi-Resonant PWM Controller
Published Oct 11, 2017
Detailed Description iW1709 Off-Line Digital Green-Mode Quasi-Resonant PWM Controller 1 Description The iW1709 is a high performance AC/DC po...
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iW1709
iW1709

Overview
iW1709 Off-Line Digital Green-Mode Quasi-Resonant PWM Controller 1 Description The iW1709 is a high performance AC/DC power supply controller that uses digital control technology to build peak current mode PWM flyback power supplies.
The device directly drives a power BJT and operates in quasi-resonant mode to provide high efficiency and key built-in protection features, while minimizing the external component count, simplifying EMI design, and lowering the total bill of material cost.
The iW1709 features a distinctive soft-start scheme, which allows for fast and yet smooth start-up with both small and large capacitive loads.
The iW1709 removes the need for a secondary feedback circuit while achieving excellent line and load regulation.
It also eliminates the need for loop compensation components while maintaining stability over all operating conditions.
The pulse-by-pulse waveform analysis allows for fast dynamic load response.
The built-in power limit function enables optimized trans...


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