BQ2004SNTR

Product Overview

Category

BQ2004SNTR belongs to the category of battery charge management integrated circuits.

Use

It is primarily used for managing and controlling the charging process of rechargeable batteries.

Characteristics

• Efficient charging algorithm
• High accuracy voltage and current regulation
• Temperature monitoring and protection
• Overcharge and over-discharge protection
• Low power consumption

Package

BQ2004SNTR is available in a small outline transistor (SOT) package.

Essence

The essence of BQ2004SNTR lies in its ability to ensure safe and efficient charging of rechargeable batteries.

Packaging/Quantity

It is typically packaged in reels, with 2500 units per reel.

Specifications

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

Detailed Pin Configuration

1. VCC: Power supply input
2. GND: Ground reference
3. TS: Temperature sense input
4. BAT: Battery voltage sense input
5. PROG: Programming pin for setting charge current
6. STAT: Status output pin
7. DSG: Discharge control pin
8. CHG: Charge control pin

Functional Features

• Constant current and constant voltage charging modes
• Automatic detection of battery type
• Thermal regulation for temperature-controlled charging
• LED indication for charging status
• Automatic termination of charging when battery is fully charged

Advantages

• Versatile compatibility with various battery chemistries
• Accurate and reliable charging algorithm
• Comprehensive protection features ensure battery safety
• Compact package size allows for space-saving designs
• Low power consumption for energy efficiency

Disadvantages

• Limited charge current range may not be suitable for high-capacity batteries
• Lack of advanced features like wireless charging or USB connectivity

Working Principles

BQ2004SNTR operates by regulating the charging process based on the battery's voltage, current, and temperature. It employs a constant current mode initially to rapidly charge the battery until it reaches a specific voltage threshold. Then, it switches to constant voltage mode to maintain a steady voltage while reducing the charging current. This ensures a safe and efficient charging process.

Detailed Application Field Plans

1. Portable Electronics: BQ2004SNTR can be used in smartphones, tablets, and portable gaming devices to manage the charging of their rechargeable batteries.
2. Electric Vehicles: It can be employed in electric vehicle charging stations to control the charging process of the vehicle's battery pack.
3. Power Banks: BQ2004SNTR can be integrated into power banks to regulate the charging of their internal batteries.

Detailed and Complete Alternative Models

1. BQ2002SNTR: Similar to BQ2004SNTR but with a lower charge current range (10mA - 500mA).
2. BQ2008SNTR: Offers additional features such as USB connectivity and wireless charging compatibility.

Note: The alternative models mentioned above are just examples and not an exhaustive list.

This entry provides a comprehensive overview of BQ2004SNTR, including its product category, use, characteristics, package details, specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models.