7-Channel Precision Temperature Monitor - Maxim Integrated Products
Description
19-3477; Rev 0; 1/05
7-Channel Precision Temperature Monitor
General Description
The MAX6697 precision multichannel temperature sensor monitors its own temperature and the temperatures of up to six external diode-connected transistors.
All temperature channels have programmable alert thresholds.
Channels 1, 4, 5, and 6 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 MAX6697 is specified for an operating temperature range of -40°C to +125°C and is available in 20-pin QSOP and 20-pin TSSOP packages.
o Six Thermal-Diode Inputs o Local Temperature Sensor o 1°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 Small 20-Pin QSOP and 20-Pin TSSOP Packages o 2-Wire SMBus Interface
Features
MAX6697
Applications
Desktop Computers Notebook Computers Workstations Servers
SMBus is a trademark of Intel Corp.
PART MAX6697EP_ _ MAX6697UP_ _
Ordering Information
TEMP RANGE -40°C to +125°C -40°C to +125°C PIN-PACKAGE 20 QSOP 20 TSSOP
*See the Slave Address section.
Pin Configuration appears at end of data sheet.
Typical Application Circuit
+3.
3V
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CPU 1 2200pF 2 3 2200pF 4 5 2200pF 6 7 2200pF 8 9 2200pF 10 DXN5 DXP6 11 DXN4 DXP5 NC2 13 DXN6 12 2200pF GPU DXN3 DXP4 OVERT 15 NC1 14 TO SYSTEM SHUTDOWN DXN2 DXP3 ALERT 17 VCC 16 INTERRUPT TO µP DXN1 DXP2 DXP1 GND 20 4.
7kΩ EACH CLK DATA
MAX6697
SMBCLK 19 SMBDATA 18
0.
1µF
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