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LM95245
www.ti.com SNIS148G – OCTOBER 2007 – REVISED MARCH 2013 Precision Remote Diode Digital Temperature Sensor with TruTherm® BJT Beta
Compensation Technology for 45nm Process
Check for Samples: LM95245 FEATURES DESCRIPTION The LM95245 is an 11-bit digital temperature sensor
with a 2-wire System Management Bus (SMBus)
interface and TruTherm technology that can monitor
the temperature of a remote diode as well as its own
temperature. The LM95245 can be used to very
accurately monitor the temperature of external
devices such as microprocessors. TruTherm
technology allows the LM95245 to precisely monitor
thermal diodes found in 90 nm and smaller geometry
processes. The LM95245 is specifically targeted for
Intel processors on 45nm process. LM95245 reports
temperature in two different formats for +127.875В°C/128В°C range and 0В°C/255В°C range. The LM95245
T_CRIT and OS outputs are asserted when either
unmasked channel exceeds its programmed limit and
can be used to shutdown the system, to turn on the
system fans, or as a microcontroller interrupt function.
The current status of the T_CRIT and OS pins can be
read back from the status registers via the SMBus
interface. All limits have a shared programmable
hysteresis register. 1 2 Remote and Local Temperature Channels …
