Datasheet4U Logo Datasheet4U.com

UL9024 - NON-ISOLATED HIGH EFFICIENCY BUCK CONSTANT CURRENT LED DRIVER

General Description

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.

Key Features

  • br>.
  • 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.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
UL94V0 Special Products Littelfuse

Other Datasheets by Unisonic Technologies

Part Number Description
UL9480 A VOLTAGE REGULATOR
UL96A NON ISOLATED BUCK CONSTANT CURRENT LED DRIVER
UL98A NON ISOLATED BUCK CONSTANT CURRENT LED DRIVER
UL98B NON ISOLATED BUCK CONSTANT CURRENT LED DRIVER
UL98C NON ISOLATED BUCK CONSTANT CURRENT LED DRIVER

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
UNISONIC TECHNOLOGIES CO., LTD UL9024 Preliminary NON-ISOLATED HIGH EFFICIENCY BUCK CONSTANT CURRENT LED DRIVER  DESCRIPTION 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. 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.