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LM75BGD

Name: LM75BGD
Rating: 4.7 (12 reviews)

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Brand

NXP Semiconductors

概述

Description

The LM75BGD is a digital temperature sensor designed for precision temperature monitoring in various applications. It features a 2-wire I2C-compatible interface, allowing easy integration into microcontroller systems. The sensor provides a resolution of 9 to 12 bits, enabling it to measure temperatures ranging from -55°C to +125°C.
The LM75BGD incorporates an internal temperature sensor and has programmable over-temperature and under-temperature alerts, making it suitable for applications that require temperature regulation, such as HVAC systems, industrial equipment, and consumer electronics. The device operates on a supply voltage between 2.7V and 5.5V, ensuring compatibility with a wide range of power sources.
Additionally, the LM75BGD is available in various packages, enhancing its adaptability for different designs and spatial constraints. With its low power consumption and high accuracy, it serves as a reliable solution for temperature monitoring in both consumer and industrial environments.

Features

The LM75BGD is a digital temperature sensor with several key features:
1. Temperature Range: Measures temperature from -55°C to +125°C with a resolution of 0.125°C.
2. Digital Output: Communicates via I2C bus interface, allowing multiple devices on the same bus.
3. Accuracy: Provides an accuracy of ±2°C in the range of -25°C to +85°C.
4. Low Power Consumption: Operates with low power, making it suitable for battery-powered applications.
5. Programmable Alerts: Features over-temperature and under-temperature alert functions that can be configured.
6. Built-in Registers: Contains registers for storing temperature data and configuration settings.
7. Multiple Addresses: Supports up to 8 devices on the same I2C bus with unique addresses.
8. Compact Package: Available in a small SOIC-8 package for easy integration into space-constrained designs.
These features make the LM75BGD an effective solution for temperature monitoring in various applications, including consumer electronics and industrial systems.

Package

The LM75BGD is packaged in a surface-mount SOIC (Small Outline Integrated Circuit) format. It typically features an 8-pin configuration, making it suitable for compact electronic designs.

Pinout

The LM75BGD is a digital temperature sensor with a pin count of 8. Its functions include:
1. Power Supply (V+): Pin 1 – Supplies power to the device.
2. Ground (GND): Pin 2 – Common ground reference.
3. SDA (Serial Data): Pin 3 – I2C data line for communication.
4. SCL (Serial Clock): Pin 4 – I2C clock line for timing the data transmission.
5. A0: Pin 5 – Address selection for I2C, allows up to 3 devices on the same bus.
6. Alert/Interrupt (ALERT): Pin 6 – Output for over-temperature alert signals.
7. Thermostat Configuration (THYST): Pin 7 – Programmable hysteresis setting for temperature alarms.
8. Thermostat Setpoint (TOS): Pin 8 – Programmable temperature setpoint for triggering alerts.
The LM75BGD utilizes the I2C protocol for communication and offers precise temperature measurements, making it suitable for various applications in thermal management.

Manufacturer

The LM75BGD is manufactured by Texas Instruments (TI), a prominent global semiconductor company. Texas Instruments designs and produces a wide range of analog and embedded processing chips, widely used in various electronic applications. Founded in 1930, TI is known for its innovations in technology and contributions to the electronics industry, including calculators, semiconductors, and digital signal processors. The company serves multiple sectors, including consumer electronics, automotive, industrial, and communications, making it a key player in the semiconductor market.

Application

The LM75BGD is a digital temperature sensor primarily used in industrial, automotive, and consumer electronics applications. It measures temperature with an I2C interface, making it suitable for thermal management in HVAC systems, battery management in electric vehicles, and temperature sensing in computers or portable devices. Its accuracy and low power consumption also make it ideal for smart home devices and medical equipment.

Equivalent

Equivalent products to the LM75BGD chip include the LM75A, LM75B, and other temperature sensors from manufacturers like Texas Instruments (e.g., TMP75), Maxim Integrated (e.g., MAX6615), and Analog Devices (e.g., ADT7410). Always check specifications and pin compatibility to ensure proper substitution.