AL5802LPL

Document number: DS38590 Rev. 3 - 2

9 of 11

www.diodes.com

April 2016

© Diodes Incorporated

AL5802LPL

A second approach, shown in Figure 17, improves upon the method shown in Figure 16. Whereas the method in Figure 16 protects the light

engine, it will not function until the problem is diagnosed and corrected.

The method shown in Figure 17 not only provides reverse polarity protection, it also corrects the reversed polarity, allowing the light engine to

function.

dissipates less power than standard rectifier bridges.

Figure 16 Application Circuit for LED Driver

with Reverse Polarity Protection

Figure 17 Application Circuit for LED Driver with

Assured Operation Regardless of Polarity

R

S

AL5802LPL

V

S

BAS40BRW