具有 SPI 接口且支持 200°C 温度的汽车级 ±1°C 温度传感器 - LM95172-Q1

LM95172-Q1 (正在供货)

具有 SPI 接口且支持 200°C 温度的汽车级 ±1°C 温度传感器

 

描述

The LM95172EWG is an integrated digital-output temperature sensor with a Serial Peripheral Interface (SPI) and MICROWIRE™-compatible interface in a 10-pin Cerpack high temperature ceramic package. It features a very linear Sigma-Delta Analog-to-Digital Converter (ADC), high accuracy, fast conversion rates, and extremely low output noise. With an operating temperature as low as -40°C and optimized accuracy from 120°C to 200°C, it is ideal for high-temperature applications.

The over-temperature alarm output (OVERTEMP) asserts when the die temperature exceeds a programmed THIGH limit. The user-programmed TLOW limit creates a temperature-stabilizing hysteresis when the ambient temperature is near the trip point.

The LM95172EWG can be programmed to operate from 13 bits (0.0625°C per LSB) to 16 bits (0.0078125°C per LSB) resolution. The LM95172EWG powers up in 35 ms, the fastest conversion time, with temperature output set at 13-bit resolution. The resolution may then be changed to 14-, 15- or 16-bits. When in the 13-, 14- or 15-bit resolution mode, the least significant bit in the 16-bit temperature register toggles after the completion of each conversion. This bit may be monitored to verify that the conversion is complete.

The high noise immunity of the Serial I/O (SI/O) output makes the LM95172EWG ideal for use in challenging electromagnetic environments.

特性

  • LM95172EWG is AEC-Q100 Grade 0 Qualified and is Manufactured on an Automotive Grade Flow.
  • 13-Bit (0.0625°C LSB) to 16-Bit (0.0078125°C LSB) Temperature Resolution
  • Wide −40°C to +200°C Temperature Range
  • 35 ms Best Conversion Time Tracks Fast Temp Changes
  • OVERTEMP Digital Output Switches
    when TDIE > THIGH
  • Shutdown Mode Saves Power yet Wakes up for One-Shot Temperature Update
  • SPI and MICROWIRE Bus Interface
  • 10-Pin Cerpack High-Temperature Ceramic Package

Key Specifications

  • Analog and Digital Supply Voltage 3.0V to 5.5V
  • Total Supply Current     Operating 400 µA (typ)
    • Shutdown −40°C to +140°C 4 µA (max)
    • Shutdown −40°C to +175°C 12 µA (max)
    • Shutdown −40°C to +200°C 28 µA (max)
  • Temperature Accuracy
    • +175°C to +200°C ±3.0°C (max)
    • +130°C to +160°C ±1.0°C (max)
    • +120°C to +130°C ±2.0°C (max)
    • +160°C to +175°C ±2.0°C (max)
    • −40°C to +120°C ±3.5°C (max)
  • Temperature Resolution
    • 13-bit mode 0.0625°C/LSB
    • 16-bit mode 0.0078125°C/LSB
  • Conversion Time
    • 13-bit mode 43 ms (max)
    • 16-bit mode 350 ms (max)

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参数 与其它产品相比 本地数字温度传感器

 
Interface
Local Sensor Accuracy (Max) (+/- C)
Temp Resolution (Max) (bits)
Operating Temperature Range (C)
Supply Voltage (Min) (V)
Supply Voltage (Max) (V)
Supply Current (Typ) (uA)
Supply Current (Max) (uA)
Features
Addresses
Rating
Package Group
Package Size: mm2:W x L (PKG)
Iq (Typ) (uA)
LM95172-Q1
SPI, Microwire   
1   
16   
-40 to 200   
3   
5.5   
400   
456   
Configurable Resolution
Programmable Alert
One-Shot Conversion
Shutdown   
NA   
Automotive   
CFP   
See datasheet (CFP)   
400