EVAL-ADM1028 AD [Analog Devices], EVAL-ADM1028 Datasheet

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EVAL-ADM1028

Manufacturer Part Number
EVAL-ADM1028
Description
Evaluation Board for PC Temperature Monitor and Fan Control ASIC
Manufacturer
AD [Analog Devices]
Datasheet
FEATURES
On chip Temperature Sensor
External Temperature Measurement with Remote Diode
Interrupt and Overtemperature Outputs
Fault Tolerant Fan Control with Auto Hardware Trip Point
Remote Reset and Power Down Functions
LDCM Support
System Management Bus (SMBus) Communications
Standby Mode to Minimize Power Consumption
Limit Comparison of all Monitored Values
APPLICATIONS
Network Servers and Personal Computers
Microprocessor-Based Office Equipment
Test Equipment and Measuring Instruments
INTRODUCTION
The ADM1028 evaluation board allows the ADM1028
PC Temperature Monitor and Fan Control ASIC to be
quickly and easily evaluated using a personal computer.
Using the evaluation board and the accompanying
software the ADM1028 can be interfaced to any personal
computer running Windows
computers parallel port.
The evaluation board allows the input and output
functions of the ADM1028 to be exercised without the
need for external components. The software allows control
and monitoring of the ADM1028’s internal registers.
REV. PrA
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
05/2000
95 or Windows
98, via the
Evaluation Board for PC Temperature
EVALUATION SYSTEM PACKAGE CONTENTS
The evaluation system contains the following items
1. The ADM1028 Evaluation Board
2. Centronics Cable
3. CD containing this application note, datasheet and the
EVALUATION BOARD HARDWARE
The ADM1028 evaluation board contains the following
main components which can be identified from the block
diagram, printed circuit board silk screen and schematic
diagram of figures 1, 2 and 3 overleaf.
1. ADM1028 IC
2. NPN sensor transistor
3. LED indicators
4. Interface Buffers
5. Connector for parallel interface.
6. Test Connector for connecting to remote thermal
sensor (J4)
7. Fan.
One Technology Way, P .O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
THE ADM1028
The following is a brief description of the ADM1028 and
a system overview. Further information can be found on
the ADM1028 datasheet.
The ADM1028 is a low cost temperature monitor and fan
controller for microprocessor based systems. The device
can measure the temperature of a microprocessor using an
on-chip diode connected transistor or can use a low cost
small signal transistor.
Measured values can be read out via the SMBus and
values for limit comparisons can be programmed in over
the same serial bus.
The ADM1028 also contains a DAC for fan speed
control. An automatic hardware temperature trip point is
provided and the fan will be driven to full speed if it is
exceeded.
The chip also has remote reset and power down
functionality, allowing it to be remotely shut down via the
SMBus.
ADM1028 evaluation software.
Monitor and Fan Control ASIC
World Wide Web Site: http://www.analog.com
EVAL-ADM1028
Analog Devices, Inc., 1998

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EVAL-ADM1028 Summary of contents

Page 1

... NPN sensor transistor 3. LED indicators 4. Interface Buffers 5. Connector for parallel interface. 6. Test Connector for connecting to remote thermal sensor (J4) 7. Fan. One Technology Way, P .O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 Fax: 781/326-8703 EVAL-ADM1028 World Wide Web Site: http://www.analog.com Analog Devices, Inc., 1998 ...

Page 2

... EVAL-ADM1028 R_R eed Sig ition in g Blo ck J6-2 J6 Fan ector Figure1. ADM1028 Evaluation Board Block Diagram Figure2 ...

Page 3

... Figure3. ADM1028 Evaluation Board Schematic REV. PrA –3– EVAL-ADM1028 ...

Page 4

... EVAL-ADM1028 CONNECTORS AND SWITCHES AND INDICATORS The function of the various connectors, switches and indicators on the evaluation board are explained below. CENTRONICS CONNECTOR (J1) The evaluation board may be connected to the personal computer via the parallel printer port using the centronics cable provided. POWER CONNECTORS (J2 & J3) Power is supplied to the board via J2 using a 15V Power Supply mains adaptor ...

Page 5

... When you are ready for the evaluation software to begin searching for the device on the chosen medium, click on “Next”. The software will search for the ADM1028 and if it finds it the following screen will appear. –5– EVAL-ADM1028 ...

Page 6

... EVAL-ADM1028 If this is the ADM1028 the user wishes to use then click in “Finish” to begin running the software. An index type display will be displayed on the screen. If the ADM1028 was not found on the chosen medium the following screen will appear. In this case check the connections to the board and the power supply ...

Page 7

... The low limit is 0°C and the high limit is 90°C for both local and remote. Figure5 . ADM1028 Read/Write Program Tab –7– EVAL-ADM1028 Clicking on these buttons will also cause button. This also sets the limits for ...

Page 8

... EVAL-ADM1028 Figure6. ADM1028 Visual Display Program Tab –8– REV. PrA ...

Page 9

... Switches S1-2 PB1-3 Semiconductors REV. PrA 10 F 0.1 F Red LED Green LED Diode Centronics Con-Barrel Con-Power 16 Header Con Con-RIB 10HL 470 1k 47k 10k 2.2k 80 2-way switch Pushbutton Sw. NDT3055L 2N3904 ADM1028 MC33171P 74HC05 Fan 78033 –9– EVAL-ADM1028 ...

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