- Remote and local temperature channels
- Intel 45nm processor diode target
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Two formats: -128°C to 127.875°C and 0 °C to 255.875 ° C
- Remote channel digital filter
- Programmable TCRIT and OS thresholds
- Programmable shared hysteresis registers
- Diode fault detection
- Masks, offsets, and status registers
- SMBus 2.0 compatible interface with support for timeouts
- Programmable conversion rate for optimal power consumption
- Three levels of address pins
- Standby mode one-time switch control
- Pin-to-pin compatible LM95235 chips and LM86/LM89/LM99
- 8-pin MSOP and SOP packages
illustrate
LM95245 is an 11-bit 2-wire System Management Bus (SMBus) interface with TruTherm technology that monitors the temperature of the remote diode as well as its own temperature digital temperature sensor. LM95245 can monitor the temperature of external devices such as microprocessors very accurately. TruTherm technology allows LM95245 to precisely monitor thermal diodes found in processes at 90 nm and smaller geometries. LM95245 are Intel processors specifically for the 45nm process. LM95245 reported temperatures in two different formats are in the 127.875°C/-128°C temperature range and 0°C/255°C. LM95245^T_CRIT and ^ OS outputs are valid when the channel exceeds its programming limit and can be used to shut down the system, turn on the system fan, or as an interrupt function for the microcontroller. ^T_CRIT^The current state of the operating system pins can read the status register via the SMBus interface. All limitations, there is a common programmable hysteresis register.
The LM95245 remote temperature channels have programmable digital filters. LM95245 is aimed at a typical Intel ® processor in a 45nm, 65nm or 90nm process with offset registers with maximum flexibility and best accuracy.
LM95245 has three levels of address pin connections up to 3^OS outputs sharing the same SMBus master. LM95245 has a programmable slew rate register and standby mode to save power. In standby mode, a transition can be triggered, via a written one-time register.
Key specifications:
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■ Supply voltage
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3.0 V to 3.6 V
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■ Power Current, Conversion Rate = 1 Hz
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350μA (typical)
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■ Remote diode temperature accuracy
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T = 25 °C to 85 ° C, T D = 50 ° C to 105 ° C
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± 0.75 ° C (max)
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T = 25 ° C to 85 ° C, T = 40 ° C to 125 ° C
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± 1.5 °C (max)
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■ Local temperature accuracy
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TA = 25°C to 100°C
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± 2.0 ° C (max)
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■ Conversion rate, dual channel
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16 to 0.4 Hz
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apply
- Processor/computer system thermal management
- (e.g. laptops, desktops, workstations, servers)
- Electronic test equipment
- Office electronics
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