MAX31760 Evaluation Kit Evaluates: MAX31760 General Description Features The MAX31760 evaluation kit (EV kit) provides the Controls and Monitors Up to Two Fans hardware and software graphical user interface (GUI) 2-Wire, 3-Wire, and 4-Wire Fan Configurations necessary to evaluate the MAX31760 precision fan-speed EV Kit Hardware is USB Powered (USB Cable controller with nonvolatile lookup table. Included) The EV kit comes with a MAX31760AEE+ installed, as USB HID Interface well as mounting holes and headers for 4-wire, 3-wire, 2 Windows XP -, and Windows 7-Compatible and 2-wire fans. The kit also includes a USB-to-I C inter- face for easy communication with a PC. Software RoHS Compliant EV Kit Contents Proven PCB Layout Assembled circuit board including MAX31760 Fully Assembled and Tested Mini-USB cable Windows and Windows XP are registered trademarks and Ordering Information appears at end of data sheet. registered service marks of Microsoft Corporation. MAX31760 EV Kit Photo 19-7389 Rev 0 4/14Evaluates: MAX31760 MAX31760 Evaluation Kit MAX31760 EV Kit Files FILE DESCRIPTION MAX31760EVKitSetup.EXE Application Program Note: The .EXE file is downloaded as a .ZIP file. 7) Once the device driver installation is complete, Quick Start visit www.maximintegrated.com/evkitsoftware to Required Equipment download the latest version of the EV kit software, MAX31760 EV kit hardware MAX31760EVKitSetup.zip. Save the EV kit software to a temporary folder. Windows XP or Windows 7 PC 8) Unzip the .ZIP file and double-click the .EXE file to run Spare USB port the installer. A message box stating: The publisher Mini USB cable (included) could not be verified. Are you sure you want to run this software may appear. If so, click Yes. Power supply to power the fans (the voltage and 9) Follow the instructions on the installer and once current requirements depend on the fans used) complete, click Finish. The default location of the GUI One or two 2-wire, 3-wire or 4-wire fans (not included) is in the program files directory. Note: In the following sections, software-related items are 10) When the GUI appears, the EV Kit Status box in the identified by bolding. Text in bold refers to items directly Status section should indicate that the EV kit hard- from the install or EV kit software. Text in bold and ware is connected. The COM LED (D2) on the EV kit underlined refers to items from the Windows operating board should turn green. system. 11) Connect the fan power supply to VFAN and GND banana connectors and turn on. Procedure 12) Click the Read All or Read buttons to read the The EV kit is fully assembled and tested. Follow the steps contents on the associated tab. below to verify board operation: Detailed Description of Software 1) Ensure that jumpers/shunts J9 and J11 are installed. 2) Connect fan(s) to FAN1 or FAN2 for 4-wire fans, J2 or Status J4 for 3-wire fans, or J3 or J5 for 2-wire fans. In the Status group box (shown in Figure 1), the EV 3) If using 3-Wire or 2-Wire fans, ensure that jumper/ Kit Status displays Connected if the EV kit hardware shunt J10 is installed. is detected. The Auto Read edit box updates to ON 4) Set the EV kit hardware on a nonconductive surface to when the Start button in the Multiple Reads group box ensure that nothing on the PCB gets shorted together. is clicked. The Data Log edit box displays ON when the 5) Prior to starting the GUI, connect the EV kit hardware Log to File checkbox is checked in the Multiple Reads to a PC using the supplied Mini-USB cable, or equiva- group box. The Slave Address edit box defaults to A0h lent. The COM LED (D2) should flash between red and can be changed using the Software Slave Address and orange. edit box on the User EEPROM and I2C Commands tab. 6) Windows should automatically begin installing the The ALERT, SHDN, and Fan Fail statuses are read from necessary device driver. The USB interface of the the device pins. The rest of the items in the Status group EV kit hardware is configured as an HID device and box are read from registers of the device. therefore does not require a unique/custom device driver. Once the driver installation is complete, a Win- Multiple Reads dows message appears near the System Icon menu This group box allows the user to enter a desired number indicating that the hardware is ready to use. Do not of samples, as well as the delay between the samples attempt to run the GUI prior to this message. If you (in milliseconds), to automate readings. The sample read do, you must close the application and restart it once includes the local temperature, remote temperature, the driver installation is complete. On some versions TACH 1 count, TACH 2 count, current duty cycle, Alert, of Windows, administrator privileges may be required SHDN, Fan Fail, Status register, and the other registers to install the USB device. in the Status group box. It is also possible to write the Maxim Integrated 2 www.maximintegrated.com