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iW1781

Dialog Semiconductor
Part Number iW1781
Manufacturer Dialog Semiconductor
Description AC/DC Digital Quasi-Resonant PWM Controller
Published Aug 15, 2018
Detailed Description iW1781 Rapid Charge™ AC/DC Digital Quasi-Resonant PWM Controller with High Resolution Voltage/Current Control 1 Descript...
Datasheet PDF File iW1781 PDF File

iW1781
iW1781

Overview
iW1781 Rapid Charge™ AC/DC Digital Quasi-Resonant PWM Controller with High Resolution Voltage/Current Control 1 Description The iW1781 is a high performance AC/DC power supply controller for rapid charge that uses digital control technology to build peak-current mode PWM flyback power supplies.
The device operates in quasi-resonant mode to provide high efficiency and a number of key built-in protection features.
The iW1781 can achieve tight multi-level constant voltage and multi-level constant current regulation without a traditional secondary-feedback circuit.
It also eliminates the need for loop compensation components while maintaining stability over all operating conditions.
The iW1781 supports USB Power Delivery (USB PD) and other proprietary rapid charging protocols with secondaryto-primary digital communication handled by secondary-side rapid charge interface circuits, including third party ICs.
The iW1781 is optimized to work with Dialog’s iW656 USB PD controller and other ...


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