Overview
The LM95245CIMM-1/NOPB, produced by Texas Instruments, is a precision dual remote diode temperature sensor designed for accurate thermal management in various electronic systems. This component is particularly targeted for Intel processors on 45nm process technologies but is versatile enough to be used with other external devices. It features TruTherm BJT beta compensation technology, enabling precise temperature monitoring of thermal diodes in sub-micron processes. The sensor supports both local and remote temperature channels, making it an essential component for systems requiring reliable and accurate temperature control.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | LM95245CIMM-1/NOPB |
| Package Type | 8-Pin VSSOP and SOIC |
| Supply Voltage | 3.0 to 3.6 V |
| Supply Current (Conv. Rate = 1 Hz) | 350 µA (typ) |
| Operating Temperature Range | -40°C to +125°C |
| Remote Diode Temperature Accuracy | ±0.75°C (max) at TA = 25°C to 85°C; TD = 50°C to 105°C |
| Local Temperature Accuracy | ±2.0°C (max) at TA = 25°C to 100°C |
| Conversion Rate | 16 to 0.4 Hz |
| Interface | SMBus 2.0 Compatible, 2-Wire |
Key Features
- Remote and Local Temperature Channels
- Targeted for Intel 45nm Processor Diodes
- Two Formats: −128°C to +127.875°C and 0°C to 255.875°C
- Digital Filter for Remote Channel
- Programmable TCRIT and OS Thresholds
- Programmable Shared Hysteresis Register
- Diode Fault Detection
- Mask, Offset, and Status Registers
- SMBus 2.0 Compatible Interface, Supports TIMEOUT
- Programmable Conversion Rate for Best Power Consumption
- Three-Level Address Pin
- Standby Mode One-Shot Conversion Control
- Pin-for-Pin Compatible With the LM95235 and LM86, LM89, LM99
Applications
- Processor/Computer System Thermal Management (e.g., Laptops, Desktops, Workstations, Servers)
- Electronic Test Equipment
- Office Electronics
Q & A
- What is the primary function of the LM95245CIMM-1/NOPB?
The LM95245CIMM-1/NOPB is a precision dual remote diode temperature sensor designed for accurate thermal management in electronic systems.
- What process technologies is the LM95245CIMM-1/NOPB targeted for?
The LM95245CIMM-1/NOPB is specifically targeted for Intel processors on 45nm process technologies.
- What are the temperature measurement ranges supported by the LM95245CIMM-1/NOPB?
The sensor supports two formats: −128°C to +127.875°C and 0°C to 255.875°C.
- What interface does the LM95245CIMM-1/NOPB use for communication?
The LM95245CIMM-1/NOPB uses an SMBus 2.0 compatible, 2-wire interface.
- What is the accuracy of the remote diode temperature measurement?
The remote diode temperature accuracy is ±0.75°C (max) at TA = 25°C to 85°C; TD = 50°C to 105°C.
- What is the typical supply current of the LM95245CIMM-1/NOPB at a conversion rate of 1 Hz?
The typical supply current is 350 µA at a conversion rate of 1 Hz.
- Is the LM95245CIMM-1/NOPB compatible with other Texas Instruments temperature sensors?
Yes, it is pin-for-pin compatible with the LM95235 and LM86, LM89, LM99.
- What are the key applications of the LM95245CIMM-1/NOPB?
Key applications include processor/computer system thermal management, electronic test equipment, and office electronics.
- Does the LM95245CIMM-1/NOPB support programmable conversion rates?
Yes, it supports programmable conversion rates for best power consumption.
- How many devices can be connected to the same SMBus master using the LM95245CIMM-1/NOPB?
Up to three devices can be connected to the same SMBus master using the three-level address pin.
