LEDV1

LEDV1 is a small board designed to drive the LED back light of

various LCD displays.

FEATURES

■ High Output Voltage: Up to 33V.

■ Optimized for Single Supply, typically 3.3v to 10v (12.0v max).

■ High Efficiency: Greater Than 80%.

■ Dimensions 25 x 12 x 5 mm.

CN1 input connector.

4 way 2mm pitch.

Description

1

+V

Input 3.3v to 10V (12V Max)

2

SHDN

High to turn on. Low to shut down.

3

ADJ

Brightness adjustment via resistor to ground.

4

GND

Ground Input.

CN2 output connector.

2 way 2mm pitch.

Description

1

A

LED Anode connection +.

2

K

LED cathode connection -.

Notes:

1)

Current can be set by setting R2 resistance to ground. I = 0.095/R2.

4R7 = 20mA (Default)

2)

D2 is a 33V zener used to restrict the output voltage if the output connector is

open circuit.

3)

Please refer to the MICREL MIC2287C specification for more details.

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