深圳市中立信电子科技有限公司

LM75BDP,118

板上安装温度传感器 I2C LOCAL +/- 20C TS DIGITAL TEMP SENSOR

Digital temperature sensor and thermal watchdog

General description

The LM75BDP,118 LM75B is a temperature-to-digital converter using an on-chip band gap temperature sensor and Sigma-Delta A-to-D conversion technique with an overtemperature detection output. The LM75B contains a number of data registers: Configuration register (Conf) to store the device settings such as device operation mode, OS operation mode, OS polarity and OS fault queue as described in Section 7 “Functional description”; temperature register (Temp) to store the digital temp reading, and set-point registers (Tos and Thyst) to store programmable overtemperature shutdown and hysteresis limits, that can be communicated by a controller via the 2-wire serial I2C-bus interface. The device also includes an open-drain output (OS) which becomes active when the temperature exceeds the programmed limits. There are three selectable logic address pins so that eight devices can be connected on the same bus without address conflict.

Features and benefits LM75BDP,118

 Pin-for-pin replacement for industry standard LM75 and LM75A and offers improved temperature resolution of 0.125 C and specification of a single part over power supply range from 2.8 V to 5.5 V

 I2C-bus interface with up to 8 devices on the same bus

 Power supply range from 2.8 V to 5.5 V

 Temperatures range from 55 C to +125 C

Applications LM75BDP,118

 System thermal management

 Personal computers

 Electronics equipment

 Industrial controllers