peculiarity
Accurate sensory mold temperature remote integrated circuit, diode junction
Local temperature sensing
SMBus and I 2C compatible interfaces, support SMBus 1.1 timeout
Two interrupt outputs: ^INT and ^ T_CRIT_A
Register readback function
7-bit plus-sign temperature data format with a resolution of 1°C
2 address selection pins allow 9 LM82s to be connected on one bus
illustrate
The LM82 is a 2-wire serial interface digital temperature sensor that senses voltage and digital overtemperature detector using a Delta-Sigma analog-to-digital converter for temperature of a remote diode. The LM82 accurately detects its own temperature as well as the temperature of external devices, such as Pentium II ™ processors or connected to 2N3904 series diodes. With the LM82, as long as a dedicated diode (semiconductor junction) is available, the temperature of any ASIC can be detected on the chip. Hosts using the SMBus interface can access the LM82's registers at any time. ^ When T_CRIT_A output is activated, any temperature is greater than the limits of a programmable comparator, T_CRIT. When a ^INT output is activated, any temperature will occur greater than its corresponding programmable ratio limit.
host scheme, as well as the T_CRIT register state and 2 T_HIGH registers read back. Three-state logic input that allows two pins (ADD0 ADD1) to select the SMBus address of the LM82 of 9. T_CRIT and all T_HIGHs the power of the default threshold sensor at 127°C. The LM82 is pin-to-pin and register compatible with the LM84, Maxim's MAX1617, and ADM1021 Analog Devices.
Key specifications:
■ Supply voltage 3.0V to 3.6V
■ Power Supply Current 0.8 mA (max)
■ Local temperature accuracy (including quantification error)
0°C to +85°C ± 3.0°C (max)
■ Remote diode temperature accuracy (including quantization error)
25°C to +100°C ±3°C (max)
0°C to +125°C ±4°C (max)
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System thermal management
Computer
Electronic test equipment
Office electronics
HVAC