iW3620 Overview
The iW3620 is a high performance AC/DC offline LED driver which uses digital control technology to build peak current mode PWM flyback power supplies. The device operates in quasi-resonant mode at heavy load to provide high efficiency along with a number of key built-in protection.
iW3620 Key Features
- Primary-side feedback eliminates opto-isolators and simplifies design
- Quasi-resonant operation for highest overall efficiency
- EZ-EMI ® design to easily meet global EMI standards
- Up to 130 kHz switching frequency enables small
- Very tight LED constant current regulation
- No external pensation ponents required
- Built-in output constant-current control with primary-side
- Low start-up current (10 µA typical)
- Built-in soft start
- Built-in short circuit protection and output overvoltage
