Unisonic Technologies UL9024
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. The IC also combines a high power MOSFET.| Part No. | UL9024 |
|---|---|
| Datasheet | UL9024 Download |
| Manufacturer |  Unisonic Technologies |
| Description | NON-ISOLATED HIGH EFFICIENCY BUCK CONSTANT CURRENT LED DRIVER |
| Buy | Stock & Price |
DESCRIPTION
UL9024 integrates proprietary high voltage supply circuit, which eliminates VCC capacitor and startup resistor. The IC also combines a high power MOSFET. Very simple application circuit is achieved. UL9024 adopts critical conduction mode, which can turns on the internal power MOSFET when the inductance current reaches zero, reducing the power MOSFET switching loss, and achieving high efficiency. With critical conduction mode, UL9024 outputs high accuracy LED current, and further achieves excellent line regulation and load regulation. It’s insensitive to inductance and the I-shape inductance can be used. UL9024 provides various protection features to enhance the system reliability, including over current protection (OCP), short circuit protection (SCP), and thermal adjustment, etc.●
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...
