LED Backlight driver Board LED-24xxx series

LED backlight driver board LED-244130 (30mA) DC dimming

The LED backlight driver board LED-244130 is designed to drive LED backlight in TFT LCD module. It is a constant frequency and current mode controller applied to drive various LED strings. In constant current LED applications, the LED-244130 provides wide dimming feature through PWM/ or DC voltage control to allow users to adjust brightness smoothly. Additional power protection feature protects LED module from damage by overcurrent and overvoltage.

Features

Applicable to 8 LED Strings

Low profile and compact design

Constant LED Current (30mA)/ Per String

PWM or DC dimming control

Short circuit and overload protection

External Power On/Off Control

Tech Specs

Operating Condition

Input Voltage: 11V ~13.2V

Operating Temperature: -30 ~ 80 °C

Storage Temperature: -40 ~ 100 °C

Operating Humidity: <90 %RH

Storage Humidity: <95 %RH

Operating Characteristics

Input Voltage: 11V ~13.2V

LED String Voltage: 31V ~ 40V

Dimming Ratio: 100:1

Output Current: 30mA (max.)

PWM Control Duty Ratio: 1 ~ 100%

PWM Control Frequency: 200Hz ~27k Hz

PWM Swing Voltage (High): 3.0V ~ 5.5 V

Mechanical Characteristics

Applications

High brightness LCD panel

Medical equipment

Industrial LCD monitor

Kiosk

Information terminal

Ordering Information

LED-243120 (8 srtings, 20mA)

LED-243155 (8 srtings, 55mA)

LED-244140 (8 strings, 40mA)

LED-245140 (8 strings, 40mA)

LED-244180 (8 strings, 80mA)

LED-244250 (4 strings, 100mA)