MP4050 – NON-ISOLATED, HIGH BRIGHTNESS, LED DRIVER

MP4050 Rev.1.02

www.MonolithicPower.com

18

1/18/2016

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FLOW CHART

Start

Internal High Voltage

Regulator ON

Y

N

Soft Start

Y

OTP Monitor

Vcc Decrease

Shut Down

Internal High Voltage

Regulator

Y

N

OTP

Logic High?

Y

N

UVLO, OTP, Short Lamp Protection, Open Lamp Protection

All protections are auto restart

Shut off the

Switching

Pulse

N

Y

Turn ON the

MOSFET

Y

Y

Y

N

Turn OFF the

MOSFET

N

Y

Turn OFF the

MOSFET

Y

N

N

Figure 14: Control Flow Chart