DS2775G+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Battery Fuel Gauge

Characteristics: - Measures and reports the remaining capacity of a battery - Monitors battery voltage, current, and temperature - Provides accurate estimation of battery run-time - Enables efficient power management

Package: Small Outline Package (SOP)

Essence: The DS2775G+ is a highly integrated battery fuel gauge IC that accurately measures and reports the remaining capacity of a battery. It offers advanced features for efficient power management.

Packaging/Quantity: The DS2775G+ is available in SOP packaging and is typically sold in reels of 2500 units.

Specifications

• Operating Voltage Range: 2.7V to 4.5V
• Temperature Measurement Range: -40°C to +85°C
• Communication Interface: I2C
• Accuracy: ±1% (typical)
• Battery Capacity Range: 100mAh to 5000mAh

Detailed Pin Configuration

The DS2775G+ has the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VDD | Power Supply Voltage | | 2 | GND | Ground | | 3 | SDA | I2C Serial Data Line | | 4 | SCL | I2C Serial Clock Line | | 5 | ALERT | Interrupt Output | | 6 | BAT | Battery Voltage Input | | 7 | TS | Temperature Sensor Input | | 8 | NC | No Connection |

Functional Features

1. Accurate Battery Capacity Measurement: The DS2775G+ provides precise measurement of battery capacity, allowing users to monitor the remaining charge accurately.

2. Real-time Voltage, Current, and Temperature Monitoring: It continuously monitors battery voltage, current, and temperature, providing valuable data for power management and protection.

3. Advanced Power Management: The IC enables efficient power management by accurately estimating battery run-time and optimizing power usage.

4. Interrupt Output: The ALERT pin can be used to generate an interrupt signal based on user-defined conditions, allowing for timely actions or notifications.

Advantages and Disadvantages

Advantages: - Accurate battery capacity measurement - Real-time monitoring of voltage, current, and temperature - Efficient power management capabilities - Interrupt output for timely actions

Disadvantages: - Limited operating voltage range (2.7V to 4.5V) - Temperature measurement limited to -40°C to +85°C

Working Principles

The DS2775G+ works by measuring the battery voltage, current, and temperature using its integrated sensors. It then utilizes advanced algorithms to calculate the remaining battery capacity and estimate the run-time. The IC communicates this information through the I2C interface, enabling seamless integration with host systems for effective power management.

Detailed Application Field Plans

The DS2775G+ is widely used in various applications that require accurate battery monitoring and efficient power management. Some of the common application fields include:

1. Portable Electronics: Smartphones, tablets, laptops, and other portable devices benefit from the precise battery capacity measurement and power optimization provided by the DS2775G+.

2. Medical Devices: Battery-powered medical devices, such as patient monitors and infusion pumps, rely on accurate battery monitoring to ensure uninterrupted operation and patient safety.

3. Industrial Equipment: Battery-powered industrial equipment, including handheld tools and wireless sensors, can effectively manage power usage and optimize battery life using the DS2775G+.

4. Internet of Things (IoT): IoT devices often operate on batteries and require efficient power management. The DS2775G+ enables accurate monitoring and optimization of battery usage in IoT applications.

Detailed and Complete Alternative Models

1. DS2781: Similar to the DS2775G+, the DS2781 is a battery fuel gauge IC with extended temperature measurement range (-40°C to +125°C) and enhanced accuracy.

2. MAX17043: This IC offers similar functionality to the DS2775G+ and provides additional features like programmable alert thresholds and a low-power mode for ultra-low standby current.

3. BQ27441: The BQ27441 is another battery fuel gauge IC that offers high accuracy, advanced features, and support for multiple battery chemistries.

4. LTC2943: This IC combines battery fuel gauging with a coulomb counter, allowing precise measurement of battery charge and discharge.

In conclusion, the DS2775G+ is a highly integrated battery fuel gauge IC that accurately measures and reports the remaining capacity of a battery. With its advanced features and efficient power management capabilities, it finds applications in various fields, including portable electronics, medical devices, industrial equipment, and IoT