MAX6694

19-4097; Rev 0; 4/08 www.DataSheet4U.com 5-Channel Precision Temperature Monitor with Beta Compensation General Description The MAX6694 precision multichannel temperature sensor monitors its own temperature and the temperatures of up to four external diode-connected transistors. All temperature channels have programmable alert thresholds. Channels 1 and 4 also have programmable overtemperature thresholds. When the measured temperature of a channel exceeds the respective threshold, a status bit is set in one of the status registers. Two open-drain outputs, OVERT and ALERT, assert corresponding to these bits in the status register. The 2-wire serial interface supports the standard system management bus (SMBus™) protocols: write byte, read byte, send byte, and receive byte for reading the temperature data and programming the alarm thresholds. The MAX6694 is specified for a -40°C to +125°C operating temperature range and is available in 16-pin TSSOP and 5mm x 5mm thin QFN packages. o Four Thermal-Diode Inputs o Beta Compensation (Channel 1) o Local Temperature Sensor o 1.5°C Remote Temperature Accuracy (+60°C to +100°C) o Temperature Monitoring Begins at POR for FailSafe System Protection o ALERT and OVERT Outputs for Interrupts, Throttling, and Shutdown o STBY Input for Hardware Standby Mode o Small, 16-Pin TSSOP and TQFN Packages o 2-Wire SMBus Interface Features MAX6694 Applications Desktop Computers Notebook Computers Workstations Servers SMBus is a trademark of Intel Co...