EV8004-QW-00A
13W 802.3af PoE Powered Device Interface
with Flyback DC-DC Converter EV Board
EV8004-QW-00A Rev. 1.2 www.MonolithicPower.com 1
10/27/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP8004 is an integrated IEEE 802.3af PoE
compliant Powered Device (PD) power supply
solution. It includes a PD interface and an
isolated/non-isolated flyback converter.
The PD interface includes detection and
classification modes as well as a 100V output
pass device. Inrush current limit is included to
slowly charge the input capacitor.
The DC-DC converter includes a 150V power
switch and is capable of delivering 13W output
power with high efficiency. It has an internal
soft-start, auto-retry, over current, short circuit,
and over voltage protection. It can also skip
cycles during light load condition.
The MP8004 is available in thermally enhanced
4x6mm QFN20 package.
ELECTRICAL SPECIFICATIONS
Parameter Symbol Value Units
Input voltage Vin 36-57
(1)
V
Output voltage Vout 12 V
Output current Iout 1 A
Frequency Fsw 275 kHz
Note:
1) It requires higher than 42V input for startup, after startup, it can
work down to 36V. Meets IEEE 802.3af Specifications
FEATURES
Meets IEEE 802.3af Specifications
100V, 1 Integrated Pass Switch
420mA DC Input Current Limit
150V, 0.45 Integrated Switch for Power
Converter
Cycle-by-Cycle Switching Current Limit
Integrated 100V Startup Circuit
Programmable Switching Frequency
Duty Cycle Limiting with Line Feed Forward
Internal Slope Compensation
OCP, SCP and OTP Protection
4x6mm QFN20 Package
APPLICATIONS
VoIP Telephones
Security Camera Systems
Wireless Access Points/Wireless LAN
Small-cell Base Stations
Safety Backup Power
Remote Internet Power
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
EV8004-QW-00A EVALUATION BOARD
(L x W x H) (12.5cm x 4cm x 1.5cm)
Board Number MPS IC Number
EV8004-QW-00A MP8004GQW
LOAD CURRENT (mA)
Efficiency vs.
Load Current
0
10
20
30
40
50
60
70
80
90
0 200 400 600 800 1000
V
IN
=48V
V
IN
=57V
V
IN
=37V