MAX6654EVSYS

MAX6654EVSYS Datasheet

MAX6654 Evaluation System

Part	Datasheet
MAX6654EVSYS	MAX6654EVSYS (pdf)

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MAX6654 Evaluation System Evaluates MAX6654 The MAX6654 evaluation system EV system consists of a MAX6654 evaluation kit EV kit and a companion system management bus SMBus interface board. The MAX6654 EV kit is an assembled and tested PC board that demonstrates the MAX6654 temperature sensor. It monitors both the junction temperature of the MAX6654 and the temperature of an external diodeconnected transistor, and converts the temperature to 8-bit or 11-bit extended resolution mode , 2-wire serial data. A 2N3906 temperature-sensor transistor comes soldered to the board in a SOT23 package, but it can be removed. The board can then be connected through a twisted pair to a remote diode close to your system. The Maxim SMBus interface board MAXSMBUS allows an IBM-compatible PC to use its parallel port to emulate an Intel SMBus 2-wire interface. 95/98/2000-compatible software provides a user-friendly interface to exercise the features of the MAX6654. The program is menu driven and offers a graphic interface with control buttons and status display. Order the MAX6654EVSYS for a complete IBM PCbased evaluation of the MAX6654. Order the MAX6654EVKIT if you already have an SMBus interface. o Measures and Displays Remote Sensor Temperature o Programmable Alarms and Configuration o Operating Temperature Ranges -55°C to +125°C Remote Sensor 0°C to +70°C Board o SMBus/I2C -Compatible Interface o Easy-to-Use Menu-Driven Software o Assembled and Tested o Includes Windows 95/98/2000-Compatible Software and Demo PC Board Ordering Information PART SMBus INTERFACE TYPE IC PACKAGE MAX6654EVKIT MAX6654EVSYS Not included MAXSMBUS 16 QSOP 16 QSOP Note The MAX6654 EV kit software is provided with the MAX6654EVKIT. However, the MAXSMBUS board is required to interface the EV kit to the computer when using the software. Windows is a registered trademark of Microsoft Corp. SMBus is a trademark of Intel Corp. I2C is a trademark of Philips Corp. DESIGNATION C2 J1 JU1, JU2, JU3 JU4, JU5, JU6 0.1µF, 16V X7R ceramic capacitor Taiyo Yuden EMK107BJ104KA or Murata GRM39X7R104K016 2200pF, 50V X7R ceramic capacitor 2 x 10 right-angle female receptacle 3-pin headers Not installed PART MAX6654EVKIT MAXSMBUS MAX6654EVSYS Component List QTY 1 DESCRIPTION MAX6654 EV kit SMBus interface board MAX6654EVKIT Component List DESIGNATION R1 SW1 U1 None PNP transistor Central Semiconductor CMPT3906 or Fairchild MMBT3906 or General Semiconductor MMBT3906 or On Semiconductor MMBT3906 or Vishay/Lite-On MMBT3906 Not installed Slide switch, 0.150in pitch MAX6654MEE Shunts Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at MAX6654 Evaluation System Evaluates MAX6654 Quick Start Before you begin, you will need the following equipment: • An IBM PC-compatible computer running Windows 95/98/2000 • A parallel printer port this is a 25-pin socket on the back of the computer • A standard 25-pin, straight-through, male-to-female cable printer extension cable to connect the computer’s parallel port to the SMBus interface board • A DC power supply capable of supplying any voltage between +7V and +20V at 100mA Procedure 1 Carefully connect the boards by aligning the 20-pin connector of the MAX6654 EV kit with the 20-pin header of the MAXSMBUS interface board. Gently press them together. The two boards should be flush against each other. 2 Make sure switch SW1 on the MAX6654 EV kit is in the OFF position. Do not turn on the power until all connections are made. 3 Connect the power supply to the pads labeled POS9 and GND1 of the SMBus interface board. 4 Make sure JU3 is set to the 1-2 position. 5 Connect a cable from the computer’s parallel port to the SMBus interface board. Use a straight-through 25-pin female-to-male cable. To avoid damaging the EV kit or your computer, do not use a 25-pin SCSI port or any other connector that is physically similar to the 25-pin parallel printer port. 6 The MAX6654.EXE software program can be run from the floppy or hard drive. Use the Windows program manager to run the program. If desired, you may use the INSTALL.EXE program to copy the files and create icons for them in the Windows 95/98/2000 Start menu. An uninstall program is included with the software. Click on the UNINSTALL icon to remove the EV kit software from the hard drive. 7 Turn on the power supply. 8 Turn the EV kit on by moving SW1 to the ON position. 9 Start the MAX6654 program by opening its icon in the Start menu. 10 Observe as the program automatically detects the address of the MAX6654 and starts the main program. Note The MAX6654 reads the address select pins at device power-up only. Detailed Description User-Interface Panel The user interface is easy to operate. Use the mouse, or press the Tab key to navigate with the arrow keys. Each of the buttons corresponds to bits in the command and configuration bytes. By clicking on them, the correct SMBus write operation is generated to update the internal registers. Note Words in bold are user-selectable features in the software. The program continually polls the device for new temperature data and status, and monitors for alert conditions. To disable the continuous polling of data, uncheck the Automatic Read checkbox. To change the THIGH and TLOW threshold comparison registers, select the appropriate data field and type in the new value. Pressing Enter, after typing in the new values, updates the internal registers. If an interrupt condition is generated by the temperature crossing one of the alarm threshold levels, the message ALERT will appear. To clear the interrupt, first eliminate the condition that caused it and then click on Read Alert. This action reads the Alert Response address, returns the value of the current MAX6654 slave address, and clears the interrupt. Note The least significant bit LSB of the address is the read/write status bit therefore, the address returned will be 1 higher. To make single-shot conversions, check the STOP checkbox under Configuration Byte, and then click on the One-Shot button. Single-shot conversions can also be performed while the device is autoconverting. The Component Suppliers SUPPLIER Central Semiconductor Fairchild General Semiconductor Murata On Semiconductor Taiyo Yuden Vishay/Lite-On Diodes, Inc. PHONE 515-435-1110 408-822-2000 631-847-3000 814-237-1431 602-303-5454 408-573-4150 805-446-4800 FAX 515-435-1824 408-822-2102 631-847-3236 814-238-0490 602-994-6430 408-573-4159 805-446-4850 Note Please indicate you are using the MAX6654 when contacting these component suppliers. MAX6654 Evaluation System Evaluates MAX6654 single-shot command overrides the automatic conversion. After the single shot is complete, the device returns to automatic operation. Simple SMBus Commands There are two methods for communicating with the MAX6654 through the normal user-interface panel or through the SMBus commands available from pressing the MAXSMBUS button. A display pops up that allows the SMBus protocols, such as Read Byte and Write Byte, to be executed. To stop normal user-interface execution so that it does not override the manually set values, turn off the update timer that slaves the program to the conversion rate by unchecking the Automatic Read checkbox. The SMBus dialog boxes accept numeric data in binary, decimal, or hexadecimal. Hexadecimal numbers should be prefixed by or 0x. Binary numbers must be exactly eight digits. Note In places where the slave address asks for an 8-bit value, it must be the 7-bit slave address of the MAX6654 as determined by ADD0 and ADD1 with the last bit always set to Data Logging Check the Data Logging checkbox to activate data logging. Data logging saves temperature and status data to a text file that includes a time/date stamp next to each data point. If Automatic Read is enabled, data is sampled at 2Hz however, the data is logged to the file only if either the temperature or status change. This slows the growth of the data-logging file. When Automatic Read is disabled, the data is logged each time the Read All button is clicked. To stop data logging, uncheck the Data Logging checkbox. Table JU1 and JU2 Shunt Settings for SMBus Address SHUNT LOCATION

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MAX6654 Evaluation System

Evaluates MAX6654

The MAX6654 evaluation system EV system consists of a MAX6654 evaluation kit EV kit and a companion system management bus SMBus interface board.

The MAX6654 EV kit is an assembled and tested PC board that demonstrates the MAX6654 temperature sensor. It monitors both the junction temperature of the MAX6654 and the temperature of an external diodeconnected transistor, and converts the temperature to 8-bit or 11-bit extended resolution mode , 2-wire serial data. A 2N3906 temperature-sensor transistor comes soldered to the board in a SOT23 package, but it can be removed. The board can then be connected through a twisted pair to a remote diode close to your system.

The Maxim SMBus interface board MAXSMBUS allows an IBM-compatible PC to use its parallel port to emulate an Intel SMBus 2-wire interface. 95/98/2000-compatible software provides a user-friendly interface to exercise the features of the MAX6654. The program is menu driven and offers a graphic interface with control buttons and status display.

Order the MAX6654EVSYS for a complete IBM PCbased evaluation of the MAX6654. Order the MAX6654EVKIT if you already have an SMBus interface.
o Measures and Displays Remote Sensor Temperature
o Programmable Alarms and Configuration o Operating Temperature Ranges
-55°C to +125°C Remote Sensor 0°C to +70°C Board o SMBus/I2C -Compatible Interface o Easy-to-Use Menu-Driven Software o Assembled and Tested o Includes Windows 95/98/2000-Compatible Software and Demo PC Board
Ordering Information

PART

SMBus INTERFACE TYPE

IC PACKAGE

MAX6654EVKIT MAX6654EVSYS

Not included MAXSMBUS
16 QSOP 16 QSOP

Note The MAX6654 EV kit software is provided with the MAX6654EVKIT. However, the MAXSMBUS board is required to interface the EV kit to the computer when using the software.

Windows is a registered trademark of Microsoft Corp. SMBus is a trademark of Intel Corp. I2C is a trademark of Philips Corp.

DESIGNATION

C2 J1 JU1, JU2, JU3 JU4, JU5, JU6
0.1µF, 16V X7R ceramic capacitor Taiyo Yuden EMK107BJ104KA or Murata GRM39X7R104K016
2200pF, 50V X7R ceramic capacitor
2 x 10 right-angle female receptacle
3-pin headers Not installed

PART MAX6654EVKIT MAXSMBUS

MAX6654EVSYS Component List

QTY 1

DESCRIPTION MAX6654 EV kit SMBus interface board

MAX6654EVKIT Component List

DESIGNATION

R1 SW1 U1 None

PNP transistor Central Semiconductor CMPT3906 or Fairchild MMBT3906 or General Semiconductor MMBT3906 or On Semiconductor MMBT3906 or Vishay/Lite-On MMBT3906

Not installed

Slide switch, 0.150in pitch

MAX6654MEE

Shunts

Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at

MAX6654 Evaluation System

Evaluates MAX6654

Quick Start

Before you begin, you will need the following equipment:
• An IBM PC-compatible computer running Windows 95/98/2000
• A parallel printer port this is a 25-pin socket on the back of the computer
• A standard 25-pin, straight-through, male-to-female cable printer extension cable to connect the computer’s parallel port to the SMBus interface board
• A DC power supply capable of supplying any voltage between +7V and +20V at 100mA

Procedure 1 Carefully connect the boards by aligning the 20-pin
connector of the MAX6654 EV kit with the 20-pin header of the MAXSMBUS interface board. Gently press them together. The two boards should be flush against each other.
2 Make sure switch SW1 on the MAX6654 EV kit is in the OFF position.

Do not turn on the power until all connections are made.
3 Connect the power supply to the pads labeled POS9 and GND1 of the SMBus interface board.
4 Make sure JU3 is set to the 1-2 position.
5 Connect a cable from the computer’s parallel port to the SMBus interface board. Use a straight-through 25-pin female-to-male cable. To avoid damaging the EV kit or your computer, do not use a 25-pin SCSI port or any other connector that is physically similar to the 25-pin parallel printer port.
6 The MAX6654.EXE software program can be run from the floppy or hard drive. Use the Windows program manager to run the program. If desired, you may use the INSTALL.EXE program to copy the files and create icons for them in the Windows 95/98/2000 Start menu. An uninstall program is included with the software. Click on the UNINSTALL icon to remove the EV kit software from the hard drive.
7 Turn on the power supply.
8 Turn the EV kit on by moving SW1 to the ON position.
9 Start the MAX6654 program by opening its icon in the Start menu.
10 Observe as the program automatically detects the address of the MAX6654 and starts the main program.

Note The MAX6654 reads the address select pins at device power-up only.

Detailed Description

User-Interface Panel The user interface is easy to operate. Use the mouse, or press the Tab key to navigate with the arrow keys. Each of the buttons corresponds to bits in the command and configuration bytes. By clicking on them, the correct SMBus write operation is generated to update the internal registers.

Note Words in bold are user-selectable features in the software.

The program continually polls the device for new temperature data and status, and monitors for alert conditions. To disable the continuous polling of data, uncheck the Automatic Read checkbox. To change the THIGH and TLOW threshold comparison registers, select the appropriate data field and type in the new value. Pressing Enter, after typing in the new values, updates the internal registers.

If an interrupt condition is generated by the temperature crossing one of the alarm threshold levels, the message ALERT will appear. To clear the interrupt, first eliminate the condition that caused it and then click on Read Alert. This action reads the Alert Response address, returns the value of the current MAX6654 slave address, and clears the interrupt. Note The least significant bit LSB of the address is the read/write status bit therefore, the address returned will be 1 higher.

To make single-shot conversions, check the STOP checkbox under Configuration Byte, and then click on the One-Shot button. Single-shot conversions can also be performed while the device is autoconverting. The

Component Suppliers

SUPPLIER Central Semiconductor Fairchild General Semiconductor Murata On Semiconductor Taiyo Yuden Vishay/Lite-On Diodes, Inc.

PHONE 515-435-1110 408-822-2000 631-847-3000 814-237-1431 602-303-5454 408-573-4150 805-446-4800

FAX 515-435-1824 408-822-2102 631-847-3236 814-238-0490 602-994-6430 408-573-4159 805-446-4850

Note Please indicate you are using the MAX6654 when contacting these component suppliers.

MAX6654 Evaluation System

Evaluates MAX6654
single-shot command overrides the automatic conversion. After the single shot is complete, the device returns to automatic operation.

Simple SMBus Commands There are two methods for communicating with the MAX6654 through the normal user-interface panel or through the SMBus commands available from pressing the MAXSMBUS button. A display pops up that allows the SMBus protocols, such as Read Byte and Write Byte, to be executed. To stop normal user-interface execution so that it does not override the manually set values, turn off the update timer that slaves the program to the conversion rate by unchecking the Automatic Read checkbox.

The SMBus dialog boxes accept numeric data in binary, decimal, or hexadecimal. Hexadecimal numbers should be prefixed by or 0x. Binary numbers must be exactly eight digits. Note In places where the slave address asks for an 8-bit value, it must be the 7-bit slave address of the MAX6654 as determined by ADD0 and ADD1 with the last bit always set to

Data Logging Check the Data Logging checkbox to activate data logging. Data logging saves temperature and status data to a text file that includes a time/date stamp next to each data point. If Automatic Read is enabled, data is sampled at 2Hz however, the data is logged to the file only if either the temperature or status change. This slows the growth of the data-logging file. When Automatic Read is disabled, the data is logged each time the Read All button is clicked. To stop data logging, uncheck the Data Logging checkbox.

Table JU1 and JU2 Shunt Settings for SMBus Address

SHUNT LOCATION

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Datasheet ID: MAX6654EVSYS 647380