EV4601EF-00A

Buck-Boost White LED Driver

For TV Backlighting Applications

EV4601EF-00A Rev.1.0

www.MonolithicPower.com

1

9/23/2011

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2011 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The

EV4601EF-00A

Evaluation

Board

is

designed to demonstrate the capabilities of

MPS’

MP4601EF

for

TV

backlighting

applications. MP4601 is an integrated Buck-

Boost white LED driver which is suitable for TV

and big panel backlighting applications with

MPS patented pending technology.

With a 12V input VIN and a high voltage source

over 350V. The LED current is regulated to

about 120mA. The EV4601EF-00A can be

synchronized. Several EV4601EF-00As can be

used together to drive a TV panel

ELECTRICAL SPECIFICATION

Parameter

Symbol

Value

Units

Input Voltage

VIN

12±10%

V

Enable

EN

5±10%

V

Dimming

DIM

5±10%

V

LED Current

120±5%

mA

Switching Frequency

fs

300

kHz

Over

Voltage

Protection

-63

V

FEATURES

• Novel Power Leverage Control Technology

• Negative Output Buck-Boost Operation

• Switching Frequency Synchronization

• Analog and PWM Dimming Control

• Programmable Cycle-by-Cycle Over Current

Protection

• Thermal Shutdown Protection

• LED Short and Open Protection

• Fault Output for Short LED Protection

• Output Short Circuit Protection

APPLICATIONS

• TV Backlighting

• Large LCD Panels Backlighting

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

of Monolithic Power Systems, Inc.

EV4601EF-00A EVALUATION BOARD

(L x W x H) 5cm x 5cm x 4.5mm

Board Number

MPS IC Number

EV4601EF-00A

MP4601EF

93.00

94.00

95.00

96.00

97.00

98.00

99.00

100.00

120 130 140 150 160 170 180