MAX6622:5-Channel Precision Temperature Monitor

Allows Temperature Monitoring of Next-Generation CPUs and Four Other Locations in a Small 16-Pin TSSOP

The MAX6622 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, 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 MAX6622 is specified for a -40°C to +125°C operating temperature range and is available in a 16-pin TSSOP package.

Key Features
  • Four 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, 16-Pin TSSOP Package
  • 2-Wire SMBus Interface
  • Penryn CPU-Compatible
  • Pin- and Register-Compatible with MAX6602
MAX6622: Typical Application Circuit
MAX6622: Typical Application Circuit
Applications/Uses
  • Desktop Computers
  • Notebook Computers
  • Servers
  • Workstations
DataSheet
titleDownload file
MAX6622 Data SheetMAX6622.pdf
Parametrics
Part NumberSensor TypeAlarm OutputFunctionsInterfaceChannelsAccuracy
(±°C)
Parasite Pwr.Temp. Thresh.Temp. Resolution
(bits)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
See Notes
MAX6622RemoteAlert
Overt
Dual Temperature Alarms
Multi-Channel Temperature Monitor
Remote & Local Sensor
2-Wire/I2C/SMBusFour1NoProgrammable8
11
-40 to +125TSSOP/16$3.50 @1k
Related Products
  • MAX6622:5-Channel Precision Temperature Monitor
  • MAX6636:7-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
MAX6622UE9A+ActiveTSSOP,;16 pin;33.4 mm²-40°C to +125°CLead Free
MAX6622UE9A+TActiveTSSOP,;16 pin;33.4 mm²-40°C to +125°CLead Free
MAX6622.pdf MAX6622
MAX6622.pdf MAX6622