LC709203FQH-03TWG

Product Overview

Category: Integrated Circuit (IC)

Use: Battery Fuel Gauge IC

Characteristics: - Measures the remaining capacity of a rechargeable lithium-ion battery - Provides accurate battery information for monitoring and control purposes - Enables efficient power management in portable devices

Package: QFN (Quad Flat No-leads) package

Essence: The LC709203FQH-03TWG is an advanced battery fuel gauge IC that accurately measures the remaining capacity of a lithium-ion battery, allowing for effective power management in portable devices.

Packaging/Quantity: The LC709203FQH-03TWG is typically sold in reels or trays, with a quantity of 2500 units per reel.

Specifications

• Operating Voltage Range: 2.7V to 4.5V
• Battery Voltage Measurement Range: 2.7V to 4.5V
• Temperature Measurement Range: -40°C to +85°C
• Communication Interface: I2C
• Accuracy: ±1% (typical)
• Low Power Consumption: <10µA
• Package Dimensions: 3mm x 3mm x 0.55mm

Detailed Pin Configuration

The LC709203FQH-03TWG has the following pin configuration:

1. VDD: Power supply input
2. GND: Ground reference
3. SDA: I2C data line
4. SCL: I2C clock line
5. BAT: Battery voltage input
6. INT: Interrupt output
7. TS: Temperature sensor input

Functional Features

• Accurate battery capacity measurement
• Real-time monitoring of battery status
• Low power consumption for extended battery life
• Temperature compensation for accurate readings in varying conditions
• Built-in interrupt function for efficient power management
• I2C communication interface for easy integration with microcontrollers

Advantages and Disadvantages

Advantages: - Accurate and reliable battery capacity measurement - Low power consumption for extended battery life - Temperature compensation ensures accurate readings in different environments - Compact package size allows for easy integration into portable devices - Built-in interrupt function enables efficient power management

Disadvantages: - Limited operating voltage range (2.7V to 4.5V) - Requires I2C communication interface for data retrieval

Working Principles

The LC709203FQH-03TWG works by monitoring the voltage and temperature of the connected lithium-ion battery. It uses an advanced algorithm to accurately estimate the remaining capacity of the battery based on these measurements. The IC communicates with a microcontroller through the I2C interface, providing real-time battery information for monitoring and control purposes.

Detailed Application Field Plans

The LC709203FQH-03TWG is widely used in various portable electronic devices that rely on rechargeable lithium-ion batteries. Some common application fields include:

1. Smartphones and tablets
2. Wearable devices (smartwatches, fitness trackers)
3. Portable medical devices
4. Handheld gaming consoles
5. Wireless headphones and earbuds
6. Portable power banks

Detailed and Complete Alternative Models

1. LC709203FQH-01TWG: Similar to LC709203FQH-03TWG, but with a different package size (2mm x 2mm x 0.4mm).
2. LC709203FQH-04TWG: Enhanced version with additional features such as overvoltage protection and deep discharge detection.
3. LC709203FQH-05TWG: Higher accuracy variant with ±0.5% accuracy for demanding applications.

These alternative models offer similar functionality to the LC709203FQH-03TWG, catering to different requirements and preferences of designers and manufacturers.

Word count: 515 words