EV3307-J-00A

Non-Synchronized White LED Driver

Evaluation Board

EV3307-J-00A Rev.1.0

www.MonolithicPower.com

1

7/13/2015

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© 2015 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP3307 is a non-synchronous WLED step-

up LED driver with 2.7V-to-5.5V input range. It

uses peak-current mode to regulate the LED

current sensed through an external, low-side

resistor.

The

MP3307

features

up

to

2.2MHz

programmable switching frequency which is

easy to avoid the noise interference and easy to

optimize efficiency and reduce the output filter

components size. To extend the dimming range,

it supports both analog and PWM dimming

mode with separate input.

MP3307 has LED open protection, output over-

voltage protection, cycle-by-cycle current limit

protection, and thermal shutdown protection.

MP3307 is available in TSOT23-8 package

which is good to use in Video displays.

ELECTRICAL SPECIFICATIONS

Parameter

Symbol

Value

Units

Input Voltage

2.7 – 5.5

V

Output Voltage

VLED

<24

V

LED String

1

string

LED Current

40

mA

FEATURES

• 2.7V-to-5.5V Input Voltage

• Analog Dimming with >20kHz input signal

• Direct PWM dimming mode with 100Hz to

2kHz input signal

• Up to 2.2MHz Programmable Switching

Frequency

• Low 200mV Feedback Voltage with ±1%

Accuracy at Room Temperature

• 24V Open-Load Protection Threshold

• UVLO, Thermal Shutdown

• Cycle by Cycle Over Current Protection

• Available in a TSOT23-8 Package

APPLICATIONS

• Video Displays

• In-Car LCD Infotainment

• Tablets

All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For

MPS green status, please visit MPS website under Quality Assurance. “MPS”

and “The Future of Analog IC Technology” are Registered Trademarks of

Monolithic Power Systems, Inc.