LED Backlight driver Board LED-23xxx series

LED driver board LED-234180 (80mA) PWM dimming

The LED driver board LED-234180 is designed to drive LED backlight module. It is a constant frequency and current mode controller applied to drive various LED rails. In constant current LED applications, the LED-234180 provides wide dimming feature through PWM 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 (80mA)/ Per String

PWM 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: 80mA (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-233125 (8 srtings, 25mA)

LED-234140 (8 strings, 40mA)

LED-235140 (8 strings, 40mA)

LED-234175 (8 strings, 75mA)

LED-234180 (8 strings, 80mA)

LED-234250 (4 strings, 100mA)