Overview
The LM95241CIMM-2/NOPB is a precision dual remote diode temperature sensor (RDTS) produced by National Semiconductor, now part of Texas Instruments. This device utilizes TI's TruTherm technology to accurately measure the temperature of remote ICs or diode junctions, as well as its own local temperature. The LM95241 features a 2-wire serial interface compatible with SMBus 2.0 and includes advanced input stages with both analog and digital filtering. This sensor is particularly useful in applications requiring precise temperature monitoring, such as in server systems, data centers, and other high-density computing environments.
Key Specifications
| Parameter | Specification |
|---|---|
| Package | 8-pin VSSOP (DGK) |
| Operating Temperature Range | 0°C to 85°C |
| Supply Voltage | 3.0 V to 3.6 V |
| Average Supply Current | 471 μA (Typ) |
| Remote Diode Temperature Accuracy | ±1.25°C (Max) at TA = 20°C to 40°C, TD = 45°C to 85°C ±2.5°C (Max) at TA = 0°C to 85°C, TD = 25°C to 140°C |
| Local Temperature Accuracy | ±3.0°C (Max) at TA = 0°C to 85°C |
| Resolution | Remote: 10-bits to 13-bits programmable Local: 9-bits plus sign |
| Interface | SMBus 2.0 Compatible |
Key Features
- Accurately senses die temperature of remote ICs or diode junctions using TruTherm technology.
- Thermal diode input stage with analog and digital filtering.
- Supports Intel processor on 65nm or 90nm process or 2N3904 non-ideality selection.
- Remote diode fault detection and on-board local temperature sensing.
- Programmable conversion rate for optimizing power consumption.
- Shutdown mode and one-shot conversion control.
- SMBus 2.0 compatible interface with TIMEOUT support.
Applications
The LM95241CIMM-2/NOPB is suitable for various applications requiring precise temperature monitoring, including:
- Server systems and data centers.
- High-density computing environments.
- Telecommunications equipment.
- Industrial control systems.
- Aerospace and defense systems.
Q & A
- What is the primary function of the LM95241CIMM-2/NOPB?
The primary function is to accurately measure the temperature of remote ICs or diode junctions, as well as its own local temperature. - What technology does the LM95241CIMM-2/NOPB use for temperature measurement?
It uses TI's TruTherm technology. - What is the operating temperature range of the LM95241CIMM-2/NOPB?
The operating temperature range is 0°C to 85°C. - What is the supply voltage range for the LM95241CIMM-2/NOPB?
The supply voltage range is 3.0 V to 3.6 V. - What is the average supply current of the LM95241CIMM-2/NOPB?
The average supply current is 471 μA (Typ). - What is the resolution of the remote temperature readings?
The resolution can be programmed from 10-bits to 13-bits. - Does the LM95241CIMM-2/NOPB support digital filtering?
Yes, it supports digital filtering which increases the resolution to 13-bits. - What interface does the LM95241CIMM-2/NOPB use?
The LM95241CIMM-2/NOPB uses an SMBus 2.0 compatible interface. - Can the LM95241CIMM-2/NOPB be placed in a shutdown mode?
Yes, it can be placed in a shutdown mode to minimize power consumption. - What are some common applications of the LM95241CIMM-2/NOPB?
Common applications include server systems, data centers, telecommunications equipment, industrial control systems, and aerospace and defense systems.
