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 ...