UL9024 Overview
UL9024 is a high precision LED constant current control chip operating at critical conduction mode (CRM) with zero current switched-on and peak current switched-off. It’s mainly targeted for 85Vac~265Vac universal mains and non-isolated buck LED power systems. UL9024 integrates proprietary high voltage supply circuit, which eliminates VCC capacitor and startup resistor.
UL9024 Key Features
- FEATURES
- No VCC capacitor and start-up resistor
- Wide input voltage range
- High efficiency (up to 95%)
- Highly accurate constant LED current
- Cycle-by-cycle current limitation
- LED short circuit protection
- Leading edge blanking control
- Under-voltage Lockout protection (UVLO)
- Thermal adjustment