Temperature sensor offers easy thermal diode monitoring

Dallas, Tex. — Texas Instruments Inc. has introduced an integrated +/-1°C 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 non-ideality correction, which eliminates the need for individual processor resistance calibration commonly associated with remote diode monitoring, said TI.

The TMP411 offers programmable over- and under-temperature thresholds and alert pins that can be used for immediate response to potentially dangerous thermal environments. This prevents system damage and enables systems to run continuously with minimal interruption. Programmable non-ideality factor correction can be used for any diode non-ideality factor associated with any processor, said TI.

The TMP411 operates on a standard I2C/SMBus compatible, two-wire interface and offers 9- to 12-bit resolution over a temperature range of -40°C to 125°C, with a remote temperature range of up to 150°C. For reduced power consumption, the TMP411 can be put into sleep mode reducing current consumption to 10 μA.

The TMP411 provides thermal system management for a wide range of applications including industrial controllers, servers, desktop and notebook computers, and medical equipment. Other applications include central office telecom equipment, LCD/DLP/LCOS projectors, storage area networks and processor/FPGA temperature monitoring.

Pricing: The TMP411 is priced at $1.75 each in quantities of 1,000 (suggested resale pricing). SO-8 packaging will be available in second quarter 2007.
Product information: TMP411
Datasheet: TMP411

Texas Instruments Inc. ,

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