MAX1618 2N3904 MAX1618EVSYS MAX1618EVKIT EMK107BJ104KA CMPT3904 MMBT3904 - Datasheet Archive
MAX1618 Evaluation System/Evaluation Kit The MAX1618 evaluation system (EV system) consists of a MAX1618 evaluation kit (EV kit)
19-1509; Rev 0; 7/99 MAX1618 MAX1618 Evaluation System/Evaluation Kit The MAX1618 MAX1618 evaluation system (EV system) consists of a MAX1618 MAX1618 evaluation kit (EV kit) and a companion Maxim SMBusTM Interface Board. The MAX1618 MAX1618 EV kit is an assembled and tested PC board that demonstrates the MAX1618 MAX1618 temperature sensor. It monitors the temperature of an external diode-connected transistor and converts the temperature to 8-bit, 2-wire serial data. A 2N3904 2N3904 temperaturesensor 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 closer to your system. The Maxim SMBus Interface Board (MAXSMBUS) allows an IBM-compatible PC to use its parallel port to emulate an Intel System Management Bus (SMBus) 2-wire interface. Windows ® 3.1/95/98 software provides a userfriendly interface to exercise the features of the MAX1618 MAX1618. The program is menu driven and offers a graphic interface with control buttons and status display. Order the MAX1618EVSYS MAX1618EVSYS for complete IBM PC-based evaluation of the MAX1618 MAX1618. Order the MAX1618EVKIT MAX1618EVKIT if you already have an SMBus interface. MAX1618EVKIT MAX1618EVKIT Component List DESIGNATION QTY DESCRIPTION C1 1 0.1µF, 16V, X7R ceramic capacitor Taiyo Yuden EMK107BJ104KA EMK107BJ104KA C2 1 Features o Measures and Displays Remote Sensor Temperature o Programmable Alarms and Configuration o -55°C to +125°C Operating Temperature Range o I2CTM/SMBus Compatible o Easy-to-Use Menu-Driven Software o Assembled and Tested Ordering Information INTERFACE TYPE BOARD TYPE MAX1618EVKIT MAX1618EVKIT PART User-Supplied 10 µMAX MAX1618EVSYS MAX1618EVSYS Windows Software 10 µMAX Note: The MAX1618 MAX1618 software can only be used with the complete evaluation system MAX1618EVSYS MAX1618EVSYS, which includes the MAXSMBUS interface board and the MAX1618EVKIT MAX1618EVKIT. MAX1618EVSYS MAX1618EVSYS Component List PART QTY MAX1618EVKIT MAX1618EVKIT 1 MAX1618 MAX1618 evaluation kit DESCRIPTION MAXSMBUS 1 SMBus interface board 2200pF, 50V, X7R ceramic capacitor J1 1 2 x 10 right-angle female receptacle JU1, JU2, JU3 3 3-pin headers JU4 0 Not installed 1 NPN transistor Central Semiconductor CMPT3904 CMPT3904, Fairchild MMBT3904 MMBT3904, or Motorola MMBT3904 MMBT3904 Q1 SW1 1 Slide switch U1 1 Maxim MAX1618EUB MAX1618EUB None 3 Shunts SMBus is a trademark of Intel Corp. Windows is a registered trademark of Microsoft Corp. I2C is a trademark of Philips Corp. Component Suppliers SUPPLIER PHONE FAX Central Semiconductor 515-435-1110 515-435-1824 Fairchild 408-822-2000 408-822-2102 Motorola 303-675-2140 303-675-2150 Taiyo Yuden 408-573-4150 408-573-4159 Note: Please indicate you are using the MAX1618 MAX1618 when contacting these component suppliers. _ Maxim Integrated Products 1 For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. Evaluates: MAX1618 MAX1618 General Description Evaluates: MAX1618 MAX1618 MAX1618 MAX1618 Evaluation System/Evaluation Kit Quick Start 8) Start the MAX1618 MAX1618 program by opening its icon in the Program Manager (or Start Menu). Equipment Required 9) When the program prompts you, select the correct parallel port. An autodetect routine identifies the port to which the EV kit is connected and selects it as the default choice by highlighting it. Verify that the correct port is highlighted, then select "OK." 10) Observe as the program automatically detects the address of the MAX1618 MAX1618 and starts the main program. Before you begin, you will need the following equipment: · An IBM PC-compatible computer capable of running Windows 3.1/95/98 · 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 to connect the computer's parallel port to the Maxim SMBus Interface Board · A DC power supply capable of supplying +7V to +20V at 100mA Detailed Description Procedure The user interface is easy to operate; use the mouse, or press the Tab key to navigate with the arrow keys (Figure 1). Each of the buttons corresponds to bits in the command and configuration bytes. Click on them to generate the correct SMBus write operation to update the internal registers. The program continually polls the device for new temperature data and status, and monitors for alert conditions. To change the T HIGH and TLOW alarm-threshold comparison registers, select the appropriate data field and type in the new value. Press Enter after typing in the new values to update the internal registers. 1) Carefully connect the boards by aligning the 20-pin connector of the MAX1618 MAX1618 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. Make sure switch SW1 on the MAX1618 MAX1618 EV kit is in the OFF position. Do not turn on the power until all connections are made. 2) Connect a +7V to +20V DC power supply to the pads labeled POS9 and GND1 of the SMBus interface board. 3) Make sure JU3 is set to the 23 position. 4) Connect a cable from the computer's parallel port to the SMBus interface board. Use a 25-pin straight-through, 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. 5) The MAX1618 MAX1618.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 3.1 Program Manager (or the Windows 95/98 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. Note: The MAX1618 MAX1618 reads the address select pins at device power-up only. User-Interface Panel To make single-shot conversions, click in the Stop check box under Configuration, then click on the Measure Now button. Single-shot conversions can also be performed while the device is autoconverting. The singleshot command overrides the automatic conversion. After the single shot is complete, the device returns to automatic operation. If an interrupt condition is generated by the temperature crossing one of the alarm threshold levels, a message appears in the alert box: "ALERT! INT = LOW." To clear the interrupt, first eliminate the condition that caused it, then click on Read Alert. This action reads the Alert Response address, returns the value of the current MAX1618 MAX1618 slave address, and clears the interrupt. Note: The 7 most significant bits (MSBs) are the address. The least significant bit (LSB) is the read/write status. 6) Turn on the power supply. 7) Turn the EV kit on by moving SW1 to the ON position. 2 _ MAX1618 MAX1618 Evaluation System/Evaluation Kit Evaluates: MAX1618 MAX1618 Figure 1. Main Display for MAX1618 MAX1618 EV Kit Simple SMBus Commands Data Logging There are two methods for communicating with the MAX1618 MAX1618: through the normal user-interface panel, or through the simple SMBus commands available from the SMBus pull-down menu. The menu lists simple SMBus protocols, such as Read Byte and Write Byte. 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 clicking in the Automatically Update Displays check box. The SMBus dialog boxes accept numeric data in binary, decimal, or hexadecimal. Prefix hexadecimal numbers by $ or 0x. Binary numbers must be exactly eight digits. Note: In places where the slave address asks for an 8bit value, it must be the 7-bit slave address of the MAX1618 MAX1618 as determined by ADD0 and ADD1, with the last LSB bit always set to 1. Data-logging commands are accessed through the pull-down menu labeled MAX1618 MAX1618. Data logging saves temperature data to a text file that includes a time/date stamp next to each data point. Due to the high conversion rate of the MAX1618 MAX1618, not every data point is logged, depending on the speed of the disk drive where the file is being written. To stop data logging, deselect Logging from the pull-down menu. _ 3 Evaluates: MAX1618 MAX1618 MAX1618 MAX1618 Evaluation System/Evaluation Kit Table 1. JU1 and JU2 Shunt Settings for SMBus Address SHUNT LOCATION JU1 JU2 MAX1618 MAX1618 ADDRESS 23 23 0011 000 23 Open 0011 001 23 12 0011 010 Open 23 0101 001 Open Open 0101 010 Open 12 0101 011 12 23 1001 100 12 Open 1001 101 12 12 1001 110 Jumper and Switch Settings Two jumpers set the MAX1618 MAX1618 slave address. The default address is 1001 110 (ADD0 = ADD1 = VCC). JU1 corresponds to ADD0 and JU2 corresponds to ADD1; see Table 1 for a complete list of addresses. The MAX1618 MAX1618 must undergo a power-on reset for the new address to become effective. The +5V supply voltage for the MAX1618 MAX1618 comes from the SMBus interface board. To evaluate the MAX1618 MAX1618 with a different voltage, cut the trace shorting the two pins of JU4 and apply a voltage to the pad labeled VCC. The MAX1618 MAX1618 can be placed in standby mode using jumper JU3. See Table 2 for jumper settings. A slide switch, SW1, is provided as a means to force a power-on reset of the MAX1618 MAX1618. This switch disables power to the device. Table 2. JU3 Shunt Settings for STBY SHUNT LOCATION STBY PIN 12 Connected to GND Open 23 4 Connect an external signal to STBY FUNCTION In standby mode Connected to VCC In operating mode _ MAX1618 MAX1618 Evaluation System/Evaluation Kit Evaluates: MAX1618 MAX1618 SW1 VCC C1 0.1µF 3 JU3 6 SMBCLK SMBDATA ALERT 8 9 10 STBY SMBCLK DXP GND 5 DXP SMBDATA C2 2200pF MAX1618 MAX1618 ALERT DXN 3 STBY 1 7 VCC 2 Q1 4 DXN GND ADD0 1 1 VCC ADD1 2 2 JU4 (SHORTED BY PCB TRACE) 3 J11 JU1 1 2 JU2 3 J12 J13 SMBDATA J14 J15 J16 J19 J18 SMBCLK J17 N.C. J111 J110 J112 ALERT J113 N.C. J115 N.C. N.C. J116 J117 N.C. N.C. J118 N.C. J120 J119 GND J114 Figure 2. MAX1618 MAX1618 EV Kit Schematic _ 5 Evaluates: MAX1618 MAX1618 MAX1618 MAX1618 Evaluation System/Evaluation Kit TO BOARD EDGE JU4 J1 ON VCC JU2 ALERT JU1 OFF SW1 DXN U1 SMBDATA JU3 SMBCLK DXP Q1 C2 C1 STBY GND 1.0" Figure 3. MAX1618 MAX1618 EV Kit Component Placement Guide- Component Side 1.0" 1.0" Figure 4. MAX1618 MAX1618 EV Kit PC Board Layout-Component Side Figure 5. MAX1618 MAX1618 EV Kit PC Board Layout-Solder Side Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 6 _Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 1999 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.