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EVAL-ADM1278EBZ User Guide
UG-601
One Technology Way • P. O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Te l: 781.329.4700 • Fax: 781.461.3113 • www.analog.com
ADM1278 Evaluation Board User Guide
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. A | Page 1 of 18
FEATURES
Fully functional support evaluation kit for the ADM1278
Populated and tested with 12 V, 73 A, 3 mF design
Special N-MOSFET footprint suits different packages
Supports up to 4 sense resistors in parallel
Supports up to 6 FETs in parallel
LED indicated status outputs
Wide input voltage range of up to 20 V
FET temperature measurement capability
Supports cascade setup for multiple boards
Toggle and push-button switch for easy input control
PMBus communication supported
PACKAGE CONTENTS
EVAL-ADM1278EBZ evaluation board
ADDITIONAL HARDWARE NEEDED
Serial I/O interface USB-SDP-CABLEZ (not included in the
evaluation kit and should be ordered separately)
Only one dongle is required in multiple board cascade setup
SOFTWARE NEEDED
Analog Devices, Inc., hot swap and power monitoring
evaluation software
EVALUATION BOARD CONNECTION DIAGRAM
11757-001
TEST POINT
S
LEDs
POWER SUPPLY
POSITIVE INPUT
POWER SUPPLY
NEGATIVE INPUT
USB-SDP-CABLEZ
SWITCH S1
PUSH
BUTTON S2
Figure 1.
GENERAL DESCRIPTION
The EVAL-ADM1278EBZ is a compact, full featured evaluation
board for the ADM1278. The board layout provides a clear visual
of all the peripheral components and the hot swap power path.
The layout also maximizes the ability of the board to dissipate
heat for some of the key components on the power path, allowing
the evaluation of very high current hot swap setups.
Four sense-resistor slots and six multipackage FET slots provide
great flexibility and allow a wide range of application setups.
Multiple test points allow easy access to all critical points/pins.
Seven LEDs provide direct visual indication on variations in
the board status, such as supply input, output, IC power-good
output, fault output, current sense output, and general-purpose
outputs (GPO). An AD7291 8-channel, I
2
C, 12-bit, successive
approximation analog-to-digital converter (SAR ADC) allows
users to measure voltages such as CSOUT and other pin voltages,
as well as to read ambient board temperature through an I
2
C bus
in real time.
The kit supports I
2
C communication, allowing users to
communicate with the ADM1278. The evaluation kit also
supports cascade setup so multiple evaluation boards can be
connected together and share the same I
2
C bus.
The boards are fully compatible with the ADM1278 evaluation
software tool, which can be downloaded from the ADM1278
product page.
Users need a USB-SDP-CABLEZ USB-to-I
2
C dongle to use the
evaluation software tools.
The standard evaluation kit is prepopulated and tested with a
12 V, 73 A hot swap design capable of working with a 3 mF
output capacitor.
Complete specifications for the ADM1278 are available in the
ADM1278 data sheet, available from Analog Devices, which
should be consulted in conjunction with this user guide when
using the evaluation board.
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