MAX5969AEVKIT# Maxim Integrated, MAX5969AEVKIT# Datasheet - Page 4

• Manufacturer Part Number: MAX5969AEVKIT#
• Description: Power Management IC Development Tools MAX5969A Eval Kit
• Manufacturer: Maxim Integrated
• Series: MAX5969A, MAX5969Br

Specifications of MAX5969AEVKIT#

• Rohs: yes

Note: Indicate that you are using the MAX5969A when contacting these component suppliers.
• MAX5969A EV kit
• IEEE 802.3af/at-compliant PSE and Category 5e
• -48V, 1A-capable DC power supply
• Voltmeter
The EV kit is fully assembled and tested. Follow the steps
below to verify board operation. Caution: Do not turn on
the power supply until all connections are completed.
1) Use one of the following methods to power the EV kit:
2) Activate the PSE power supply or turn on the external
3) Using a voltmeter, verify that the EV kit provides +12V
AVX Corporation
Bel Fuse Inc.
Central Semiconductor Corp.
Cooper Bussmann
Diodes Incorporated
Fairchild Semiconductor
International Rectifier
Murata Electronics North America, Inc.
Panasonic Corp.
Pulse Engineering
STMicroelectronics
Sumida Corp.
Taiyo Yuden
TDK Corp.
Ethernet network cable
DC power supply.
across the VOUT and PGND PCB pads. PGND is
galvanically isolated from the EV kit’s input V+ and
WAD_IN PCB pads.
• If network connectivity is required: Connect a
• If network connectivity is not required: Connect
Category 5e Ethernet network cable from the EV
kit input port RJ45 connector to the correspond-
ing PSE Ethernet LAN connection, which provides
power to the EV kit. A modular Ethernet jack
(J1) provides an interface with the Ethernet data
signals only.
a -48V DC power supply between the V+ and
V- PCB pads on the EV kit. Connect the power-
supply positive terminal to the V+ PCB pad and
the negative terminal to the V- PCB pad.
_________________________________________________________________ Maxim Integrated Products 4
SUPPLIER
Hardware Connections
Required Equipment
Quick Start
Evaluates: MAX5969A/MAX5974A
843-946-0238
201-432-0463
631-435-1110
916-941-1117
805-446-4800
888-522-5372
310-322-3331
770-436-1300
800-344-2112
858-674-8100
408-452-8585
847-545-6700
800-348-2496
847-803-6100
PHONE
The MAX5969A EV kit features an Ethernet port network
PD interface-controller circuit for -57V supply rail systems.
The EV kit circuit contains a MAX5969A IEEE 802.3af/
at-compliant network PD interface controller and the
MAX5974A inductive-feedback, spread-spectrum, cur-
rent-mode PWM controller. The EV kit circuit is used in PoE
applications for powering PDs from an unshielded twisted-
pair (UTP) Category 5e Ethernet network cable and PSE
port using endspan or midspan Ethernet systems.
The EV kit demonstrates the full functionality of the
MAX5969A, such as PD detection, PD classification,
inrush current control, and UVLO. Resistors R1 and R4
set the PD detection signature and the PD classification
signatures, respectively.
The EV kit’s power circuit is a galvanically isolated 12W
power supply using the MAX5974A DC-DC current-
mode PWM controller in a synchronous-rectified flyback
DC-DC converter topology. The EV kit receives power
from an IEEE 802.3af/at-compliant PSE and a Category
5e Ethernet network cable connected to the EV kit’s
RJ45 MagJack. The EV kit uses a 1 x 1Gb Ethernet RJ45
MagJack and two full-bridge power rectifiers (D1, D2) to
separate the -57V DC power sent by the PSE. The EV kit
accepts power from an endspan or midspan PSE net-
work configuration. The EV kit also provides an Ethernet
jack (J1) for interfacing to the Ethernet data signals. PCB
pads V+ and V- are available for powering the EV kit
if network connectivity is not required. Common-mode
chokes L1 and L3 are provided for EMI filtering at the
EV kit power supply (V+, V-) and wall adapter (WAD_IN,
WAD_GND) inputs, respectively.
Detailed Description of Hardware
www.avxcorp.com
www.belfuse.com
www.centralsemi.com
www.cooperet.com
www.diodes.com
www.fairchildsemi.com
www.irf.com
www.murata-northamerica.com
www.panasonic.com
www.pulseeng.com
www.us.st.com
www.sumida.com
www.t-yuden.com
www.component.tdk.com
Component Suppliers
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