Features: ` ±1 REMOTE DIODE SENSOR
` ±1 LOCAL TEMPERATURE SENSOR
` PROGRAMMABLE NON-IDEALITY FACTOR
` SERIES RESISTANCE CANCELLATION
` ALERT FUNCTION
` PROGRAMMABLE RESOLUTION: 9 to 12 Bits
` PROGRAMMABLE THRESHOLD LIMITS
` TWO-WIRE/SMBus SERIAL INTERFACE
` MINIMUM AND MAXIMUM TEMPERATURE MONITORS
` MULTIPLE INTERFACE ADDRESSES
` ALERT/THERM2 PIN CONFIGURATION
` DIODE FAULT DETECTIONApplication· LCD/DLPTM/LCOS PROJECTORS
· SERVERS
· INDUSTRIAL CONTROLLERS
· CENTRAL OFFICE TELECOM EQUIPMENT
· DESKTOP AND NOTEBOOK COMPUTERS
· STORAGE AREA NETWORKS (SAN)
· INDUSTRIAL AND MEDICAL EQUIPMENT
· PROCESSOR/FPGA TEMPERATURE MONITORINGPinout
SpecificationsPower Supply, VS . . . . . . . . . . . . . . . . . . . . . . . . . . 7.0V
Input Voltage, pins 2, 3, 4 only . . . . −0.5V to VS + 0.5V
Input Voltage, pins 6, 7, 8 only . . . . . . . . . −0.5V to 7V
Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
Operating Temperature Range . . . . . . . −55 to +127
Storage Temperature Range . . . . . . . . −60 to +130
Junction Temperature (TJ max) . . . . . . . . . . . . +150
ESD Rating:
Human Body Model (HBM) . . . . . . . . . . . . . . . . . 3000V
Charged Device Model (CDM) . . . . . . . . . . . . . . 1000V
Machine Model (MM) . . . . . . . . . . . . . . . . . . . . . 200V
(1) Stresses above these ratings may cause permanent damage.Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not supported.
DescriptionThe TMP411A is a remote temperature sensor monitor with a built-in local temperature sensor. The remote temperature sensor diode-connected transistors are typically low-cost, NPN- or PNP-type transistors or diodes that are an integral part of microcontrollers,microprocessors, or FPGAs.
Remote accuracy is ±1 for multiple IC manufacturers,with no calibration needed. The Two-Wire serial interface accepts SMBus write byte, read byte, send byte, and receive byte commands to program the alarm thresholds and to read temperature data.Features that are included in the TMP411A are: series resistance cancellation, programmable non-ideality factor, programmable resolution, programmable threshold limits,minimum and maximum temperature monitors, wide remote temperature measurement range (up to +150),diode fault detection, and temperature alert function.
The TMP411A is available in both MSOP-8 and SO-8 (available Q1 2007) packages.
TMP411A Data Sheet
