EV3900DK-00D
High Efficiency
Flyback Converter EV Board
EV3900DK-00D Rev. 1.0 www.MonolithicPower.com 1
3/20/2008 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2008 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The EV3900DK-00D is an evaluation board for the
MP3900DK. It is configured to provide a regulated
5V output at up to 3A load current from a 18V-72V
input. The output is adjustable by changing
feedback resistors on the evaluation board.
MOSFET Rds,on can be directly used for current
sense purpose without an external sense resistor.
Although the demo board uses the external
50mΩ to sense the current, it also provides the
stuffing option for users who want to use the R
DS-ON
as the sense element.
ELECTRICAL SPECIFICATIONS
Parameter Symbol Value Units
Input voltage V
IN
18–72 V
Input current I
IN
0–1.5 A
Output voltage V
O
5 V
Output Current I
O
3 A
FEATURES
• Current Mode Control
• Under-Voltage Lockout
• Cycle-by-Cycle Current Limiting
• Lossless Current Sense (VISENSE<30V)
• 10µA Shutdown Current
• 180µA Quiescent Current
• 330KHz Constant Frequency Operation
APPLICATIONS
• TV CCFL Power Generation
• Telecom Isolated Power
• Brick Modules
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks
of Monolithic Power Systems, Inc.
EV3900DK-00D EVALUATION BOARD
(L x W x H) 2.6” x 1.8” x 0.6”
6.7cm x 4.6cm x 1.4cm
Board Number MPS IC Number
EV3900DK-00D MP3900DK
