LC709203FQH-04TWG

Product Overview

Category: Integrated Circuit (IC)

Use: Battery Fuel Gauge

Characteristics: - Measures the remaining capacity of a battery - Provides accurate information about battery status - Enables efficient power management

Package: QFN (Quad Flat No-leads) package

Essence: The LC709203FQH-04TWG is a highly integrated IC that accurately measures the remaining capacity of a battery, providing essential information for efficient power management.

Packaging/Quantity: Available in tape and reel packaging with 3000 units per reel.

Specifications

• Operating Voltage Range: 2.7V to 4.5V
• Battery Type: Lithium-ion or Lithium Polymer
• Communication Interface: I2C
• Temperature Range: -40°C to +85°C
• Accuracy: ±1%
• Standby Current: 0.5µA (typical)
• Dimensions: 3mm x 3mm x 0.6mm

Detailed Pin Configuration

The LC709203FQH-04TWG has the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VDD | Power Supply | | 2 | SDA | I2C Data Line | | 3 | SCL | I2C Clock Line | | 4 | GND | Ground | | 5 | BAT | Battery Connection |

Functional Features

1. Accurate Battery Capacity Measurement: The LC709203FQH-04TWG provides precise measurement of the remaining capacity of a lithium-ion or lithium polymer battery.
2. Real-time Battery Status Information: It offers real-time information about battery voltage, current, and temperature, enabling efficient power management.
3. Low Power Consumption: The IC has a low standby current of 0.5µA, minimizing power consumption when not in use.
4. I2C Communication Interface: It utilizes the I2C interface for easy integration with microcontrollers and other devices.

Advantages and Disadvantages

Advantages: - Accurate battery capacity measurement - Real-time battery status information - Low power consumption - Compact size - Easy integration with microcontrollers

Disadvantages: - Limited to lithium-ion and lithium polymer batteries - Requires I2C communication interface support

Working Principles

The LC709203FQH-04TWG works by monitoring the voltage, current, and temperature of the connected lithium-ion or lithium polymer battery. It uses these measurements to accurately estimate the remaining capacity of the battery. The IC communicates this information through the I2C interface, allowing the host device to make informed decisions regarding power management.

Detailed Application Field Plans

The LC709203FQH-04TWG is widely used in various applications that require accurate battery capacity measurement and efficient power management. Some of its common application fields include:

1. Portable Electronics: Smartphones, tablets, laptops, and wearable devices benefit from precise battery capacity measurement to optimize power usage and enhance user experience.
2. Medical Devices: Battery-powered medical equipment relies on accurate battery status information to ensure uninterrupted operation during critical procedures.
3. Internet of Things (IoT): IoT devices often operate on limited power sources, making accurate battery monitoring crucial for maintaining connectivity and extending battery life.
4. Industrial Equipment: Battery-powered tools, sensors, and monitoring systems utilize the IC to monitor battery health and optimize performance.

Detailed and Complete Alternative Models

1. LC709203FQH-05TWG: Similar to LC709203FQH-04TWG but with extended temperature range (-40°C to +105°C).
2. LC709203FQH-06TWG: Enhanced version with additional features such as overvoltage and undervoltage protection.
3. LC709203FQH-07TWG: Higher accuracy variant with ±0.5% accuracy for demanding applications.

These alternative models offer similar functionality but cater to specific requirements or provide enhanced performance in certain conditions.

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