Datasheet4U Logo Datasheet4U.com

LC5546LD - LED Driver IC

Download the LC5546LD datasheet PDF. This datasheet also covers the LC5546AD variant, as both devices belong to the same led driver ic family and are provided as variant models within a single manufacturer datasheet.

General Description

The LC5546AD and LC5546LD are isolated LED drivers in which a power MOSFET and a control IC are highly integrated.

The IC provides the systems that can comply with the harmonics standard (IEC61000-3-2 Class C) in all conditions, including a light load condition.

Key Features

  • the IC can provide and more cost-effective power supply systems with fewer external components. Features.
  • Built-in On-time Control Circuit (High Power Factor Achieved by Average Current Control).
  • Built-in Startup Circuit (Reduced Numnber of External Components).
  • Soft Start Function (Startup Stress Reduction for Power MOSFET and Secondary Rectifier Diode).
  • Bias Assist Function (Improved Startup Performance, VCC Voltage Drop Suppresion in Operation, Reduced Capacitance of VCC.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LC5546AD-SANKEN.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number LC5546LD
Manufacturer Sanken
File Size 903.93 KB
Description LED Driver IC
Datasheet download datasheet LC5546LD Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
LC550DUE-FGA3 WUXGA TFT LCD LG
LC550DUH-SCM1 WUXGA TFT LCD LG
LC550DUJ-SGE1 WUXGA TFT LCD LG
LC550DUJ-SGK1 WUXGA TFT LCD LG
LC550DUN-SFU2 WUXGA TFT LCD LG

Other Datasheets by Sanken

Part Number Description
LC5546AD LED Driver IC
LC5545LD LED Driver
LC5523D Single-Stage Power Factor Corrected Off-Line Switching Regulator IC
LC5525F power IC for the LED driver
LC5550LD Single-Stage Power Factor Corrected High Efficiency Non-Isolated Buck 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
No Input Electrolytic Capacitor Required, IEC61000-3-2 Class-C Isolated LED Driver IC LC5546AD/LD Data Sheet Description The LC5546AD and LC5546LD are isolated LED drivers in which a power MOSFET and a control IC are highly integrated. The IC provides the systems that can comply with the harmonics standard (IEC61000-3-2 Class C) in all conditions, including a light load condition. These systems, moreover, can be achieved without an input electrolytic capacitor. The IC employs the average current and quasi-resonant controls: the average current control realizes high power factors, whereas the quasi-resonant control contributes to high efficiency and low noise.