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

Mechanical Characteristics

Dimension (L x W x H): 100mm x 30mm x 7.5mm Weight: 24g

LCD Application

LCD Model: NEC-NL10276BC13-01C

Operating Condition

Item Symbol Conditions MIN MAX Unit Input Voltage Vin 3.3 15 V Operating Temperature Top Ha≦90%RH -20 85 ℃ Storage Temperature Tstg Ha≦95%RH -30 100 ℃ Operating Humidity Hop Ta=0~55℃ 20 90 %RH Storage Humidity Hstg Ta=20~80℃ - 95 %RH

Operating Characteristics

Unless otherwise noted Vin=12 Volts DC and T=25°C Item Symbol MIN TYP MAX Unit Input Voltage Vin 3.3 12.0 15 V Input Current I-in 310 320 340 mA LED String Voltage V-led - 27.9 31.5 V Efficiency H 78 80 82 % PWM Control Duty Ratio 10 - 100 % PWM Control Frequency 180 - 25K HZ PWM Swing Voltage 2.0 - 5.5 V Output Current (per String) I-out 13 15 17 mA DC Voltage Dimming Control 0 5 V

(CN1) Input Connector

Pin No. Symbol Description 1 BKLT DC+12V 2 BKLT DC+12V 3 GND Ground 4 GND Ground 5 ENA Enable (ON=+5V ; OFF=0V) 6 Brightness PWM/DC Voltage 7 AR NC

(CN2) Input 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 PWM, VCC NC 15 PWM, VCC NC