DS2786BG+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Battery Fuel Gauge

Characteristics: - Measures and reports the remaining capacity of a rechargeable battery - Monitors battery voltage, current, temperature, and other parameters - Provides accurate information for battery management systems

Package: BG+ Package

Essence: The DS2786BG+ is a highly integrated battery fuel gauge IC that accurately measures the remaining capacity of a rechargeable battery. It provides essential information for battery management systems to optimize battery performance and prolong battery life.

Packaging/Quantity: The DS2786BG+ is available in a BG+ package and is typically sold in quantities of 100 or more.

Specifications

• Operating Voltage Range: 2.7V to 5.5V
• Temperature Measurement Range: -40°C to +85°C
• Communication Interface: I2C
• Accuracy: ±1% (typical)
• Battery Capacity Range: 10mAh to 65Ah

Detailed Pin Configuration

The DS2786BG+ has the following pin configuration:

1. VCC - Power supply input
2. GND - Ground
3. SDA - I2C data line
4. SCL - I2C clock line
5. BAT - Battery voltage input
6. TS - Temperature sensor input
7. ALERT - Interrupt output
8. NC - No connection

Functional Features

• Accurate measurement of battery voltage, current, temperature, and other parameters
• Real-time reporting of remaining battery capacity
• Overvoltage and undervoltage protection
• Temperature monitoring and thermal shutdown
• Low-power consumption
• I2C interface for easy integration with microcontrollers

Advantages and Disadvantages

Advantages: - Accurate and reliable battery capacity measurement - Comprehensive monitoring of battery parameters - Easy integration with battery management systems - Low-power consumption for extended battery life

Disadvantages: - Limited temperature measurement range (-40°C to +85°C) - Requires an external microcontroller for data processing and system integration

Working Principles

The DS2786BG+ works by continuously monitoring the battery voltage, current, and temperature. It uses sophisticated algorithms to accurately calculate the remaining battery capacity based on these measurements. The IC communicates with a microcontroller via the I2C interface, providing real-time data for battery management and optimization.

Detailed Application Field Plans

The DS2786BG+ is widely used in various applications that require accurate monitoring and management of rechargeable batteries. Some common application fields include:

1. Portable Electronics: Smartphones, tablets, laptops, and other portable devices benefit from precise battery capacity measurement and optimization.
2. Electric Vehicles: Battery fuel gauges are crucial for electric vehicle performance and range estimation.
3. Energy Storage Systems: Battery management systems in renewable energy storage applications rely on accurate battery capacity information.
4. Medical Devices: Critical medical equipment requires reliable battery monitoring for uninterrupted operation.
5. Industrial Equipment: Battery-powered industrial machinery can benefit from efficient battery management and predictive maintenance.

Detailed and Complete Alternative Models

1. DS2788BG+: Similar to the DS2786BG+, but with additional features such as coulomb counting and programmable alarm thresholds.
2. MAX17043G+: A highly integrated fuel gauge IC with advanced features like ModelGauge m5 EZ algorithm for improved accuracy.
3. BQ27441-G1: A fuel gauge IC with an integrated protector and authentication features, suitable for high-security applications.

These alternative models offer similar functionality to the DS2786BG+ and can be considered based on specific requirements and preferences.

In conclusion, the DS2786BG+ is a versatile battery fuel gauge IC that provides accurate measurement and reporting of battery capacity. Its integration with battery management systems enhances battery performance and prolongs battery life in various applications.