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iW1818

Dialog Semiconductor
Part Number iW1818
Manufacturer Dialog Semiconductor
Description Off-Line Digital Green-Mode Quasi-Resonant PWM Controller Integrated
Published Apr 3, 2019
Detailed Description iW1818 Off-Line Digital Green-Mode Quasi-Resonant PWM Controller Integrated with Power BJT 1 Description The iW1818 is a...
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iW1818
iW1818

Overview
iW1818 Off-Line Digital Green-Mode Quasi-Resonant PWM Controller Integrated with Power BJT 1 Description The iW1818 is a high performance AC/DC power supply control device that uses digital control technology to build peak current mode PWM flyback power supplies.
The device includes an internal power BJT, operates in quasi-resonant mode, and includes key built-in protection features.
This combination of features and integration simplifies design, improves efficiency, reduces EMI and lowers the bill of material cost.
The iW1818 features a distinctive soft-start scheme, which allows for fast and yet smooth start-up with both small and large capacitive loads.
It 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 ...


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