MAX6636:7-Channel Precision Temperature Monitor

Allows Temperature Monitoring of Next-Generation CPUs and Six Other Locations in a Small 20-Pin TSSOP

The MAX6636 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, active-low OVERT and active-low 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 MAX6636 is specified for a -40°C to +125°C operating temperature range and is available in a 20-pin TSSOP package.

Key Features
  • Six Thermal-Diode Inputs
  • Local Temperature Sensor
  • 1°C Remote Temperature Accuracy (+60°C to +100°C)
  • Temperature Monitoring Begins at POR for Fail-Safe System Protection
  • Active-Low ALERT and Active-Low OVERT Outputs for Interrupts, Throttling, and Shutdown
  • Active-Low STBY Input for Hardware Standby Mode
  • Small, 20-Pin TSSOP Package
  • 2-Wire SMBus Interface
  • Penryn CPU-Compatible
  • Pin- and Register-Compatible with MAX6689
MAX6636: Typical Application Circuit
MAX6636: Typical Application Circuit
Applications/Uses
  • Desktop Computers
  • Notebook Computers
  • Servers
  • Workstations
DataSheet
titleDownload file
MAX6636 Data SheetMAX6636.pdf
Parametrics
Part NumberSensor TypeAlarm OutputFunctionsInterfaceChannelsAccuracy
(±°C)
Parasite Pwr.Temp. Thresh.Temp. Resolution
(bits)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
See Notes
MAX6636RemoteAlert
Overt
Dual Temperature Alarms
Multi-Channel Temperature Monitor
Remote & Local Sensor
2-Wire/I2C/SMBusSix1NoProgrammable8
11
-40 to +125TSSOP/20$4.04 @1k
Related Products
  • MAX6622:5-Channel Precision Temperature Monitor
  • MAX6698:7-Channel Precision Remote-Diode, Thermistor, and Local Temperature Monitor
  • MAX6697:7-Channel Precision Temperature Monitor
  • MAX6695:Dual Remote/Local Temperature Sensors with SMBus Serial Interface
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX6636UP9A+ActiveTSSOP,;20 pin;45.2 mm²-40°C to +125°CLead Free
MAX6636UP9A+TActiveTSSOP,;20 pin;45.2 mm²-40°C to +125°CLead Free
MAX6636.pdf MAX6636
MAX6636.pdf MAX6636