HT7L5502
Description
The HT7L5502/03 is a controller for implementing constant current LED driver with power factor correction (PFC). By using primary-side regulation, it controls the LED output current accurately without the need of secondary-side feedback ponents.
Key Features
- Primary-side current regulation without secondary-side feedback circuitry
- Power factor higher than 0.9
- compatible with wide dimming range
- PWM dimming range: 5%~100%
- Analog dimming range: 10%~100%
- Tight LED constant current regulation of ±3%
- Line pensation for enhanced LED current accuracy
- Constant voltage regulation when LED is turned off
- Full protection functions for enhanced safety
- Output over voltage protection
