LM95241CIMM-1

• Accurate temperature at the junction of sensory death remote IC or diode
• TruTherm technology uses "thermal diode" precision temperature measurement
• A thermal diode simulates the input stage of filtering
• Digital filtering of thermal diodes
• An Intel processor or 2N3904 with a 65nm or 90nm process is not ideal
• Remote diode fault detection
• Local temperature sensing
• Remote temperature readings without digital filtering:
• LSb of a comet 0.125°
• 10-bit plus sign bit or 11-bit programmable resolution
• 11 bits address temperatures above 127°C
• Remote temperature readings and digital filtering:
• 0.03125°C LSB with filtration
• 12 bits plus sign bits or 13 bits of programmable resolution
• The 13-bit solution is above 127°C
• Local temperature reading:
• 0.25℃
• 9-bit plus
• Status register support
• Programmable slew rate allows the user to optimize power consumption
• Shutdown mode one-time conversion control
• SMBus 2.0 compatible interface that supports timeouts
• 8-pin MSOP package

illustrate

The LM95241 is a precision dual remote diode temperature sensor (Rapid Diagnostic Test Method) using National Semiconductor's TruTherm technology. The LM95241 with a 2-wire serial interface is compatible with SMBus 2.0. The LM95241 can sense three temperature zones, which measure the temperature of its own die and the transistors connected by two diodes. The LM95241 includes digital filtering and an advanced input stage including analog filtering and TruTherm technology that reduces processor-to-processor non-ideal propagation. Diode-connected transistors can be found in Intel and AMD processors as a "thermal diode" or MMBT3904 transistor diodes can simply be connected. TruTherm technology can accurately measure "hot diodes" found in geometries as small as 90nm and 65nm. The LM95241 supports user-selectable thermal diodes that are not ideal, either on Intel 90nm or 65nm processes or 2N3904 processors.

The LM95241 remote temperature reading resolution format can be programmed with 11-bit signed or unsigned digital filtering. When the resolution of the filtering function is increased to 13 bits with signed or unsigned. In symbolic mode, LM95241 remote diode readings can address temperatures above 127°C. Local temperature readings have a 9-bit plus resolution.

Main specifications

apply

• Processor/computer system thermal management

• (e.g. laptops, desktops, workstations, servers)
• Electronic test equipment
• Office electronics