Evaluation System/Evaluation Kit for the MAX6640

All versions are Not Recommended for New Designs. See Ordering Information for recommended replacements.

The MAX6640 evaluation kit (EV kit) is an assembled and tested PC board with a mounted MAX6640. The EV kit allows full evaluation of the MAX6640 dual temperature sensor/fan controller. The MAX6640 monitors its own die temperature and the junction temperature of one external diode-connected transistor or the junction temperatures of two external diode-connected transistors. It converts the temperature to 8-bit or 11-bit 2-wire serial data that can be accessed over a 2-wire serial bus.

The MAX6640 EV kit includes both external diode-connected transistors (2N3906) soldered to the board, which can be removed. The board can then be connected through a twisted pair to remote diodes close to your system.

The temperature data is also used by the internal dual PWM fan-speed controller to adjust the speed of up to two cooling fans. Speed control is accomplished by tachometer feedback from the fan.

The MAX6640 evaluation system consists of a Maxim Command Module (CMOD232) and a MAX6640 EV kit. The CMOD232 board connects to a computer's RS-232 serial port to provide a computer-controlled SMBus™/I²C bus. Windows® 95/98/2000/XP-compatible software provides a user-friendly interface to exercise the features of the MAX6640. The program is menu driven and offers a graphic interface with control buttons and status display.

The MAX6640EVKIT can also evaluate the MAX6639. Order a free sample of the MAX6639AEE through Maxim's website. Order the MAX6640EVCMOD2 for a complete PC-based evaluation of the MAX6640. Order the MAX6640EVKIT if you already have a CMOD232 SMBus interface.

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