HT7L5502/HT7L5503
Primary-Side Regulation Dimmable LED Driver with Active PFC
General Information
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 components. The HT7L5502/03 operates in the quasi-resonant mode to achieve higher efficiency. The output current can be modulated by the DIM pin. The HT7L5502/03 integrates robust protection functions, including output over voltage protection, output short-circuit protection (SCP), VCC over voltage protection, VCC under voltage lockout and over temperature protection (OTP).
Feature Details
| Attribute | Value |
|---|---|
| Primary-side current regulation without secondaryside feedback circuitry | Available |
| Power factor higher than 0.9 | Available |
| Compatible with wide dimming range |
|
| Tight LED constant current regulation of ±3% | Available |
| Line compensation for enhanced LED current accuracy | Available |
| Constant voltage regulation when LED is turned off | Available |
| Full protection functions for enhanced safety |
|
| Package type | 8-pin SOP |
Resources
| Title | Date | File Size | Language | Download |
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