BQ2002DSNG4

Product Overview

Category

BQ2002DSNG4 belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This product is primarily used for managing and controlling the charging process of batteries in various electronic devices, such as smartphones, tablets, portable gaming consoles, and other portable electronic devices.

Characteristics

• Integrated circuit designed for battery charging applications
• Provides precise control over the charging process
• Offers protection features to prevent overcharging and overheating
• Optimizes charging efficiency for improved battery life
• Compact package for easy integration into electronic devices

Package and Quantity

The BQ2002DSNG4 is available in a small outline package (SOP) with a specified quantity per reel. The exact package dimensions and reel quantity may vary depending on the manufacturer's specifications.

Specifications

• Input voltage range: 4.5V - 6.5V
• Charging current range: 100mA - 500mA
• Operating temperature range: -40°C to +85°C
• Battery voltage accuracy: ±1%
• Charging termination accuracy: ±0.5%

Pin Configuration

The BQ2002DSNG4 has a total of 8 pins, each serving a specific function. The pin configuration is as follows:

1. VCC: Power supply input pin.
2. GND: Ground reference pin.
3. BAT: Battery connection pin.
4. TS: Temperature sense pin for monitoring battery temperature.
5. PROG: Programming pin for setting charging parameters.
6. STAT: Status output pin indicating the charging status.
7. VREF: Voltage reference output pin.
8. ISET: Current set pin for adjusting the charging current.

Functional Features

1. Precise Charging Control: The BQ2002DSNG4 offers precise control over the charging process, ensuring optimal charging conditions for the battery.
2. Protection Mechanisms: This IC incorporates protection features to prevent overcharging and overheating, safeguarding the battery and the device.
3. Efficiency Optimization: By optimizing the charging process, the BQ2002DSNG4 improves overall battery life and performance.
4. Compact Design: The compact package of this IC allows for easy integration into various electronic devices without occupying excessive space.

Advantages and Disadvantages

Advantages

• Provides precise control over the charging process, maximizing battery performance.
• Incorporates protection mechanisms to prevent overcharging and overheating, enhancing safety.
• Optimizes charging efficiency, leading to improved battery life.
• Compact design facilitates integration into electronic devices.

Disadvantages

• May require additional external components for certain applications.
• Limited charging current range may not be suitable for high-power devices.

Working Principles

The BQ2002DSNG4 operates based on a constant current/constant voltage (CC/CV) charging algorithm. It initially charges the battery with a constant current until a predefined voltage is reached. Then, it switches to a constant voltage mode to maintain the battery at its maximum charge level while minimizing the risk of overcharging.

Application Field Plans

The BQ2002DSNG4 finds extensive application in various portable electronic devices that rely on rechargeable batteries. Some potential application fields include: - Smartphones and tablets - Portable gaming consoles - Wearable devices - Bluetooth speakers - Power banks

Alternative Models

For those seeking alternative options, the following integrated circuits can be considered as substitutes for the BQ2002DSNG4: - BQ2000SN - BQ2001SN - BQ2002SN - BQ2003SN

These alternative models offer similar functionality and characteristics, providing flexibility in choosing the most suitable IC for specific battery charging applications.

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