LED Backlight Driver, LED Driver, LED Backlight Driving Board, LED Backlight Controller, LED Backlight Controller Board, LED Driving Board, LED backlight driving board, LED Backlight Module

LED Backlight Driver

LED-21615

Product Catalog

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Panel Selection Guide

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The LED-21615 driving board is designed to drive 6 strings of LED backlight module. LED-21615 is able to drive upto 10 white LEDs in series per string with constnat current. Onboard high quality converter drives LED strings and control the dimming of LED strings independently.It is a high efficiency and low profile driving board. Wide diming control allows users to set LED brightness smoothly. Additional power protection feature is able to protect LED module from damage by overcurrent or overvoltage.

Applicable to 6 LED strings

Low profile and compact design

Constant LED current (15mA)

PWM/Or DC Voltage Dimming Control

Short circuit and overload protection

External power On/Off control

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Mechanical Characteristics

Dimension (L x W x H): 100mm x 30mm x 7.5mm
Weight: 12.5g

LCD Application

LCD Model: NEC-NL10276BC13-01C

Operating Condition

Item	Symbol	Condition	Min.	Max.	Unit
Input Voltage	Vin		3.3	15	V
Operating Temperature	Top	Ha≦90%RH	-30	85	°C
Storage Temperature	Tstg	Ha≦95%RH	-40	100	°C
Operating Humidity	Hop	Ta=0 ~ 55°C	20	90	%RH
Storage Humidity	Hstg	Ta=20 ~ 80°C	-	95	%RH

Operating Characteristics

T=25°C

Item	Symbol	Min.	Typ.	Max.	Unit
Input Voltage	Vin	3.3	12.0	15	V
LED String Voltage	V-led	-	27.9	31.5	V
Efficiency	H	-	80	-	%
Output Current (Per String)	I-out	13	15	17	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 Input
2	BKLT	VDD Input
3	GND	Ground
4	GND	Ground
5	ENA	Enable ( ON=+5V; OFF=0V)
6	Dimming	PWM/or DC Voltage
7	AR	NC

(CN2) Output Connector

Pin No.	Symbol	Description	Pin No.	Symbol	Description
1	LEDIN1	Anode1	8	LEDO2	Cathod2
2	LEDIN2	Anode2	9	LEDO3	Cathod3
3	LEDIN3	Anode3	10	LEDO4	Cathod4
4	LEDIN4	Anode4	11	LEDO5	Cathod5
5	LEDIN5	Anode5	12	LEDO6	Cathod6
6	LEDIN6	Anode6	13	ENA	Enable
7	LEDO1	Cathod1	14, 15	Brightness, VCC	NC

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