LM75B

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM75B, LM75C SNIS153D – JULY 2009 – REVISED OCTOBER 2015 LM75x Digital Temperature Sensor and Thermal Watchdog With Two-Wire Interface 1 Features 1 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) 2 Applications General System Thermal Management Communications Infrastructure Electronic Test Equipment Environmental Monitoring 3 Description 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 ...