Sensors feed back processor health data

Integrated +/-1C maximum remote junction temperature sensor and local temperature sensor are designed to monitor thermal diodes found in CPUs, MPUs, GPUs and FPGAs.

Texas Instruments has developed an integrated +/-1C maximum remote junction temperature sensor and local temperature sensor, designed to monitor thermal diodes found in CPUs, microprocessors, graphics processing units and FPGAs.

Unlike other devices, the TMP411 features programmable series resistance cancellation and diode nonideality correction which simplify and remove the time-consuming process of individual processor resistance calibration commonly associated with remote diode monitoring.

The TMP411 provides thermal system management for a wide range of applications such as industrial controllers, servers, desktop and notebook computers, and medical equipment.

Additional applications include central office telecom equipment, LCD/DLPT/LCOS projectors, storage area networks and processor/FPGA temperature monitoring.

The TMP411 has programmable over- and undertemperature thresholds and alert pins that can be used for immediate response to potentially dangerous thermal environments - preventing system damage and enabling systems to run continuously with minimal interruption.

Programmable nonideality factor correction can be used for any diode nonideality factor associated with any processor.

The TMP411 operates on a standard I2C/SMBus compatible, two-wire interface and offers 9 to 12bit resolution over a temperature range of -40C to +125C, with a remote temperature range up to 150C.

For reduced power consumption, the TMP411 can be put into sleep mode reducing current consumption to 10uA.

The TMP411 is available now from TI and its authorised distributors in a small MSOP-8 package.

It is priced at US $1.75 each in 1000-piece quantities (suggested resale pricing).

SO-8 packaging will be available in Q2 2007.

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