BQ2004ESNTR

Product Overview

Category

BQ2004ESNTR belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for battery charging applications.

Characteristics

• BQ2004ESNTR is a high-performance, single-chip, fast-charge management solution.
• It offers accurate and reliable charging control for various battery chemistries.
• The IC supports multiple charging modes, including constant current and constant voltage.
• It incorporates advanced safety features to protect the battery and the charging system.
• BQ2004ESNTR is designed to optimize charging efficiency and minimize charging time.

Package

The BQ2004ESNTR IC is available in a small outline transistor (SOT) package.

Essence

The essence of BQ2004ESNTR lies in its ability to efficiently manage and control the charging process of batteries.

Packaging/Quantity

The IC is typically packaged in reels, with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 26V
• Charging Current Range: 50mA to 2A
• Operating Temperature Range: -40°C to +85°C
• Battery Chemistry Compatibility: Li-Ion, NiMH, NiCd
• Charge Termination Methods: Voltage, Timer, Temperature
• Communication Interface: I2C

Detailed Pin Configuration

1. VCC: Power supply input
2. GND: Ground reference
3. SDA: Serial data line for I2C communication
4. SCL: Serial clock line for I2C communication
5. BAT: Battery connection terminal
6. PROG: Programming pin for setting charging parameters
7. STAT: Status output pin
8. THERM: Temperature sensing input pin

Functional Features

1. Accurate Charging Control: BQ2004ESNTR ensures precise control over the charging process, resulting in optimal battery performance and longevity.
2. Multiple Charging Modes: The IC supports various charging modes, allowing flexibility for different battery chemistries and charging requirements.
3. Safety Protection: Advanced safety features protect against overcharging, over-discharging, and overheating, ensuring safe operation of the charging system.
4. Fast Charging Capability: BQ2004ESNTR is designed to charge batteries quickly, reducing overall charging time and improving user convenience.
5. Communication Interface: The I2C interface enables communication with external devices, facilitating monitoring and control of the charging process.

Advantages and Disadvantages

Advantages

• High-performance charging management solution
• Wide input voltage range allows compatibility with various power sources
• Supports multiple battery chemistries
• Advanced safety features ensure reliable and safe charging
• Fast charging capability reduces charging time

Disadvantages

• Limited to I2C communication interface
• Requires programming for specific charging parameters

Working Principles

BQ2004ESNTR operates based on a sophisticated charging algorithm that dynamically adjusts the charging current and voltage to optimize the charging process. It continuously monitors the battery's state and adjusts the charging parameters accordingly. The IC utilizes feedback control loops to regulate the charging current and voltage, ensuring accurate and efficient charging.

Detailed Application Field Plans

BQ2004ESNTR finds applications in various fields, including: 1. Portable electronic devices (e.g., smartphones, tablets) 2. Power tools 3. Electric vehicles 4. Medical devices 5. Industrial equipment

Detailed and Complete Alternative Models

1. BQ2002SN: Similar functionality but with a different pin configuration.
2. BQ2003SN: Offers additional features such as battery authentication and fuel gauge functionality.
3. BQ2004SN: Similar to BQ2004ESNTR but in a different package.

These alternative models provide similar charging management capabilities and can be considered as alternatives to BQ2004ESNTR based on specific requirements.

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