AL5809

Document number: DS36625 Rev. 5 - 2

2 of 16

www.diodes.com

December 2016

© Diodes Incorporated

AL5809

Typical Applications Circuit

VIN

Low Side LED String

IN

OUT

1

2

AL5809

VIN

High Side LED String

IN

OUT

1

2

AL5809

Pin Descriptions

Pin

Name

Pin

Number

(PowerDI123)

Function

In

1

LED Current Input Terminal.

For low side LED string application, connect the LED cathode terminal to the

“In” terminal. For high side LED

string application, connect the LED anode

terminal to the “Out” terminal.

Out

2

LED Current Output Terminal.

For low side LED string applicatio

n, connect the LED anode terminal to the “Out” terminal. For high side LED

string application, connect the LED cath

ode terminal to the “Out” terminal.

Functional Block Diagram