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iW3627

Dialog Semiconductor
Part Number iW3627
Manufacturer Dialog Semiconductor
Description Off-Line Digital Constant-Voltage LED Driver
Published May 7, 2018
Detailed Description iW3627 Off-Line Digital Constant-Voltage LED Driver with Power Factor Correction 1 Description The iW3627 is a high-perf...
Datasheet PDF File iW3627 PDF File

iW3627
iW3627

Overview
iW3627 Off-Line Digital Constant-Voltage LED Driver with Power Factor Correction 1 Description The iW3627 is a high-performance single-stage AC/DC constant voltage (CV) controller with high power factor correction.
It supports most commonly used isolated and non-isolated topologies including flyback, buck-boost, and buck.
The device operates in constant on-time mode to achieve high power factor (>0.
9) across a wide load range.
It can achieve excellent output voltage regulation over line and load variation without the need for a secondary feedback circuit.
It also eliminates the need for external loop compensation while maintaining stability over all operating conditions with different types of loads, including downstream DC-DC converter, constant current (CC) load, LED load, and constant resistive (CR) load.
The iW3627 integrates a proprietary technique that adaptively adjusts output voltage limits to maintain overshoot and undershoot transients to less than 10% of the nominal output v...


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