LED Backlight Driver - LED-265070

LED Backlight Driver

LED-265070

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The LED-265070 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-265070 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 30mm x 7.5mm
Weight: 24g

LCD Application

LCD Model: Chilin-LQ057AC111

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 

-

32

35
V

Dimming Ratio

 

 

-

3000:1

Output Current

I-out

-

70

-
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

 


(CN2) Output Connector

 

Pin No.

Symbol

Description

1

LEDIN1
Anode1
2
LEDIN2
Anode2
3
LEDIN3
Anode3
4
LEDIN4
Anode4
5
LEDIN5
Anode5
6
LEDIN6
Anode6
7
LEDO1
Cathod1
8
LEDO2
Cathod2
9
LEDO3
Cathod3
10
LEDO4
Cathod4
11
LEDO5
Cathod5
12
LEDO6
Cathod6
13
ENA
Enable
14
Brightness
PWM/DC Voltage
15
VCC
VCC

 


 
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
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