LM75B Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface | TIJ.co.jp

LM75B
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Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface

 

推奨代替製品

  • TMP1075  -  この製品は類似機能を備えていますが、消費電力は最大 1/20 です。

概要

The LM75B and LM75C are industry-standard digital temperature sensors with an integrated Sigma-Delta analog-to-digital converter and I2C interface. The LM75 provides 9-bit digital temperature readings with an accuracy of ±2°C from -25°C to 100°C and ±3°C over –55°C to 125°C.

Communication is accomplished over a 2-wire interface which operates up to 400kHz. The LM75 has three address pins, allowing up to eight LM75 devices to operate on the same 2-wire bus. The LM75 has a dedicated over-temperature output (O.S.) with programmable limit and hystersis. This output has programmable fault tolerance, which allows the user to define the number of consecutive error conditions that must occur before O.S. is activated.

The wide temperature and supply range and I2C interface make the LM75 ideal for a number of applications including base stations, electronic test equipment, office electronics, personal computers, and any other system where thermal management is critical to performance. The LM75B and LM75C are available in an SOIC package or VSSOP package.

特長

  • No External Components Required
  • Shutdown Mode to Minimize Power Consumption
  • Up to Eight LM75s Can be Connected to a Single Bus
  • Power Up Defaults Permit Stand-alone Operation as Thermostat
  • UL Recognized Component (LM75B and LM75C)
  • Key Specifications:
    • Supply Voltage
      • LM75B, LM75C: 3 V to 5.5 V
    • Supply Current
      • Operating: 280 μA (typical)
      • Shutdown: 4 μA (typical)
    • Temperature Accuracy
      • −25°C to 100°C: ±2°C (maximum)
      • −55°C to 125°C: ±3°C (maximum)

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機能一覧

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Part number オーダー・オプション Device type Interface Local sensor accuracy (Max) (+/- C) Temp resolution (Max) (bits) Operating temperature range (C) Supply voltage (Min) (V) Supply voltage (Max) (V) Supply current (Max) (uA) Features Remote channels (#) Addresses Rating Package Group Package size: mm2:W x L (PKG)
LM75B ご注文 Local     I2C, SMBus, 2-Wire     2     9     -55 to 125     3     5.5     500     Fault Queue
UL Recognized    
0     8     Catalog     SOIC | 8
VSSOP | 8    
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
LM75A ご注文 Local     I2C, SMBus, 2-Wire     2     9     -55 to 125     2.7     5.5     500     Programmable Alert
Fault Queue
UL Recognized    
0     8     Catalog     SOIC | 8
VSSOP | 8    
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
TMP102 ご注文 Local     I2C, SMBus, 2-Wire     2     12     -40 to 125     1.4     3.6     10     Programmable Alert
Fault Queue
One-Shot Conversion
Shutdown
NIST Traceable    
0     4     Catalog     SOT-5X3 | 6     6SOT-5X3: 2 mm2: 1.2 x 1.6 (SOT-5X3 | 6)