MP4653—REAL LIPS CC/CV MODE LLC TV LED DRIVER

MP4653 Rev 1.01

www.MonolithicPower.com

19

6/28/2012

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© 2012 MPS. All Rights Reserved.

Start

Vcc pass

UVLO

N

Y

PWMIN=

high

N

Current loop

regulation

Voltage loop

regulation

LED stage fault

protection

LED stage

fault

triggered

N

Y

Bus stage

fault

triggered

N

Y

DC bus stage

fault protection

Y

Logic reset

Hiccup timer for

LED stage

Hiccup delay timer

for bus stage

Monitor fault

signals

Figure 3—System Operation Flow Chart