DS2781E+

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IC BATT MON LI-ION 1-2CEL 8TSSOP

  • FabricanteAnalog Devices Inc./Maxim Integrated

  • Peça do Fabricante #DS2781E+

  • Ficha Técnica DS2781E+ DataSheet

  • Em Estoque5553

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Especificações

Atributo Valor
Part Status Active
Base Product Number DS2781
Function Battery Monitor
Battery Chemistry Lithium Ion/Polymer
Number of Cells 1 ~ 2
Interface 1-Wire
Operating Temperature -20°C ~ 70°C (TA)
Mounting Type Surface Mount
Package 8-TSSOP (0.173", 4.40mm Width)
Supplier Device Package 8-TSSOP
Packaging Tube

Visão Geral

Description

The DS2781E+ is a sophisticated battery fuel gauge integrated circuit designed for lithium-ion (Li-ion) and lithium-polymer (Li-Po) battery management. Key features include high-accuracy voltage measurement, temperature monitoring, and state-of-charge (SOC) estimation. It utilizes a proprietary algorithm to provide precise battery information, enhancing both performance and safety.
The device communicates via an I²C interface, allowing easy integration into various applications such as smartphones, tablets, and portable devices. Its low power consumption ensures minimal impact on battery life, while built-in protection features help prevent overcharging and deep discharging.
The DS2781E+ is suitable for applications requiring detailed battery status, including fuel gauge and charging control, making it an essential component in modern battery management systems. Overall, it enhances battery efficiency, extends lifespan, and contributes to improved user experiences in portable electronics.

Equivalent

The DS2781E+ chip is a battery fuel gauge and protection IC. Equivalent products include the Texas Instruments BQ27541, Maxim MAX17048, and Analog Devices LTC2941. These alternatives provide similar functionalities for measuring battery state-of-charge and managing battery protection in lithium-ion systems. Always check specific features and compatibility for your application.

Features

The DS2781E+ is a battery gas gauge and protection device designed for lithium-ion and lithium-polymer batteries. Key features include:
1. Accurate State-of-Charge Measurement: Utilizes an advanced coulomb counting method for precise capacity tracking.
2. Integrated Battery Protection: Includes overvoltage, undervoltage, overcurrent, and short-circuit protection.
3. Temperature Monitoring: Monitors battery temperature to ensure safe operation and prevent overheating.
4. I2C Communication: Supports standard I2C interface for easy integration with microcontrollers.
5. Programmable Alarm Outputs: Configurable alarm thresholds for voltage, current, and temperature to inform the system of potential issues.
6. Low Power Consumption: Designed for extended battery life in portable applications.
7. Data Logging: Capable of logging charge/discharge cycles, which aids in battery health monitoring.
8. Flexible Configuration: Adjustable parameters for different battery chemistries and sizes.
These features make the DS2781E+ ideal for applications in portable electronics, battery packs, and energy storage systems.

Pinout

The DS2781E+ is a battery fuel gauge IC with a total of 8 pins. The pin configuration and their functions are as follows:
1. VSS: Ground connection.
2. VDD: Power supply input (typically 3.0V to 4.5V).
3. SDA: Serial Data Line for I2C communication.
4. SCL: Serial Clock Line for I2C communication.
5. TS: Temperature sensor input.
6. VC: Cell voltage input for battery monitoring.
7. BAT: Connection to the battery for measuring voltage and current.
8. CT: Control pin for various functionalities, such as setting device modes.
The DS2781E+ is primarily used for measuring battery parameters and providing accurate state-of-charge (SOC) information, making it suitable for applications in portable devices and battery management systems.

Manufacturer

The DS2781E+ is manufactured by Texas Instruments (TI), a global semiconductor company headquartered in Dallas, Texas. Texas Instruments designs and produces a wide range of semiconductor products, including analog ICs, embedded processors, and digital signal processors. The company serves various markets, including automotive, industrial, communications, and consumer electronics. TI is known for its innovation and commitment to developing high-performance, efficient solutions that enable advancements in technology across multiple sectors. The DS2781E+ specifically is a battery fuel gauge that helps monitor battery capacity and health, making it suitable for applications in portable electronics and battery management systems.

Application

The DS2781E+ is a battery fuel gauge and monitor primarily used in portable electronics, such as smartphones, tablets, and wearables. It is designed for applications involving lithium-ion and lithium polymer batteries, providing accurate state-of-charge (SOC) information, battery health monitoring, and charge management. Its features also make it suitable for electric vehicles, power tools, and other battery-operated devices where precise battery management is critical. The integrated communication interface allows for integration into various systems for enhanced battery performance and lifespan management.

Package

The DS2781E+ is available in a TSSOP (Thin Shrink Small Outline Package) with a 20-pin configuration. This surface-mount package type is designed for compact applications in battery management systems.

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