LED Backlight Driver - LED-252280

LED Backlight Driver

LED-252280

Product CatalogLED Backlight Driver LED-252280
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Panel Selection Guide
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The LED-252280 driving board is designed to drive LED backlight module. It is a constant frequency and current mode controller especially applied for LED arrays. In constant current LED applications, the LED-252280 provides an especially wide PWM dimming range and DC voltage dimming control feature which allow users to adjust brightness smoothly.Additional power protection feature is able to protect LED module from damage by overcurrent and overvoltage.

 

High dimming ratio (3000:1)

Low profile and compact design

Constant LED current

PWM/Or DC Voltage Dimming Control

Short circuit and overload protection

External power On/Off control

 

Mechanical Characteristics

Dimension (L x W x H): 100mm x 40mm x 10.5mm
Weight: 24g

LCD Application

LCD Model: Prime View-PD080SL3

Operating Condition

 

Item

Symbol

Condition

Min.

Max.

Unit

Input Voltage

Vin

 

-

15

V

Operating Temperature

Top

Ha≦90%RH

-20

85

°C

Storage Temperature

Tstg

Ha≦95%RH

-30

100

°C

Operating Humidity

Hop

Ta=0 ~ 55°C

20

90

%RH

Storage Humidity

Hstg

Ta=20 ~ 80°C

-

95

%RH


Operating Characteristics

Unless otherwise noted Vin=5 Volts DC and T=25°C

Item

Symbol

Min.

Typ.

Max.

Unit

Input Voltage

Vin

-

12

15

V

Output Voltage

V-led 

-

11

-
V

Dimming Ratio

H

 

-

3000:1

Output Current

I-out

-

280

-
mA
PWM Control Duty Ratio
10
-
100
%
PWM Control Frequency
180
-
25K
HZ
PWM Swing Voltage
2.0
-
5.5
V
DC Voltage Dimming Control
0
5
V

 


(CN1) Input Connector

 

Pin No.

Symbol

Description

1

BKLT
VDD
2
BKLT
VDD
3
GND
Ground
4
GND
Ground
5
ENA
Enable ( ON=+5V; OFF=0V)
6
Brightness
PWM/DC Voltage
7
AR
NC

 


(CN8) Output Connector

 

Pin No.

Symbol

Description

1

Vout
Anode
2
LGND
Cathod

 


LED Backlight Driver - LED-252260
Spectrah Dynamics Inc.,
E-Mail: spec_info@spectrah.com
Tel: 886-2-86472026 Fax: 886-2-86472201
Address: 5F-2, No. 188, Section #3, Ta-Tung Road, Hsi-Chi,Taipei Hsien 22103, Taiwan
ISO 9001: 2010 Certificated