DS2776G+T&R

Product Overview

• Category: Integrated Circuit
• Use: Battery Fuel Gauge
• Characteristics: Accurate battery capacity monitoring, low power consumption, compact package, high integration
• Package: Tape and Reel (T&R)
• Essence: The DS2776G+T&R is a battery fuel gauge integrated circuit designed for accurate monitoring of battery capacity in various applications.
• Packaging/Quantity: Available in tape and reel packaging with a specified quantity per reel.

Specifications

• Operating Voltage: 2.5V to 4.5V
• Battery Types Supported: Li-Ion, Li-Polymer, NiMH, NiCd
• Temperature Range: -40°C to +85°C
• Communication Interface: I2C
• Accuracy: ±1% typical
• Battery Capacity Measurement Resolution: 1mAh
• Integrated Features: Temperature sensor, voltage measurement, current measurement, charge/discharge control

Detailed Pin Configuration

The DS2776G+T&R has the following pin configuration:

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

Functional Features

• Accurate monitoring of battery capacity
• Real-time voltage and current measurement
• Temperature sensing for thermal management
• Charge and discharge control
• Interrupt output for status notifications
• Low power consumption for extended battery life
• High integration for space-constrained applications

Advantages and Disadvantages

Advantages: - Accurate battery capacity monitoring ensures optimal utilization - Real-time voltage and current measurement aids in performance analysis - Temperature sensing helps prevent overheating and improves safety - Charge and discharge control optimizes battery charging cycles - Low power consumption prolongs battery life - Compact package allows for easy integration into various devices

Disadvantages: - Limited compatibility with specific battery types - Requires I2C communication interface support in the host device

Working Principles

The DS2776G+T&R works by continuously monitoring the battery voltage, current, and temperature. It uses these measurements to accurately estimate the remaining battery capacity. The integrated charge and discharge control circuitry ensures optimal charging and discharging of the battery. The fuel gauge communicates with the host device through the I2C interface, providing real-time data and status notifications.

Detailed Application Field Plans

The DS2776G+T&R is widely used in various applications that require accurate battery capacity monitoring. Some of the common application fields include:

1. Portable Electronics: Smartphones, tablets, laptops, portable gaming devices
2. Wearable Devices: Smartwatches, fitness trackers, wireless earbuds
3. Medical Devices: Portable medical equipment, patient monitoring devices
4. Industrial Equipment: Handheld instruments, portable measurement tools
5. Internet of Things (IoT): Battery-powered sensors, smart home devices

Detailed and Complete Alternative Models

1. DS2781G+T&R: Similar functionality with enhanced accuracy and additional features.
2. MAX17043G+T&R: Fuel gauge IC with advanced algorithms for improved capacity estimation.
3. BQ27441-G1+T&R: Highly integrated fuel gauge with built-in protection features.

These alternative models offer similar functionality to the DS2776G+T&R, catering to different requirements and preferences.

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