EV4012DS-00A

Boost White LED Driver

For TV Backlighting Application

EV4012DS-00A Rev.1.01

www.MonolithicPower.com

1

11/23/2011

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

© 2011 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The EV4012DS-00A Evaluation Board is

designed to demonstrate the capabilities of

MPS’

MP4012DS

for

TV

backlighting

applications. MP4012DS is a current mode

controller designed for high brightness LEDs.

With a 50-90V input VIN and a 12V power

supply for MP4012DS, EV4012DS-00A can

deliver a regulated voltage to drive a LED string.

The LED current is regulated to about 120mA,

The EV4012DS-00A can be synchronized,

Several EV4012DS-00As can be used together

to drive a TV panel.

ELECTRICAL SPECIFICATION

Parameter

Symbol

Value

Units

Input Voltage

VIN

50-90

V

IC Power Supply

12VIN

12±10%

V

PWM Dimming

PWM

5±10%

V

LED Current

120

mA

Switching Frequency

fs

100

kHz

Over

Voltage

Protection

212

V

FEATURES

• Constant Current WLED Driver

• High Frequency PWM Dimming

• Switching Frequency Synchronization

• Open Load Hiccup Mode Protection

• Short Load Hiccup Mode Protection

• Programmable Cycle-by-Cycle Over Current

Protection

• UVLO, Thermal Shutdown Protection

• Soft Start

APPLICATIONS

• TV Backlighting

• Large LCD Panel Backlighting

All MPS parts are lead-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.

Warning:

Although this board is designed to satisfy safety

requirements, the engineering prototype has not been agency

approved. Therefore, all testing should be performed using an

isolation transformer to provide the AC input to the prototype

board.

EV4012DS-00A EVALUATION BOARD

(L x W x H) 7.35cm x 5.84cm x 14mm

Board Number

MPS IC Number

EV4012DS-00A

MP4012DS

90.00

91.00

92.00

93.00

94.00

95.00

96.00

97.00

50

60

70

80

90