BQ2004SNTRG4

Product Overview

Category

BQ2004SNTRG4 belongs to the category of battery charge management integrated circuits (ICs).

Use

This IC 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
• Short-circuit protection
• Low power consumption

Package

BQ2004SNTRG4 is available in a small outline transistor (SOT) package.

Essence

The essence of BQ2004SNTRG4 lies in its ability to provide reliable and efficient charging control for rechargeable batteries.

Packaging/Quantity

This IC is typically sold in reels, with each reel containing a specific quantity of units. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 4.5V - 26V
• Charging Current Range: 10mA - 2A
• Operating Temperature Range: -40°C to +85°C
• Output Voltage Accuracy: ±1%
• Charge Termination Accuracy: ±0.5%
• Standby Current: <1µA

Detailed Pin Configuration

The BQ2004SNTRG4 IC has the following 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 charging parameters
6. STAT: Status output pin
7. DSG: Discharge control pin
8. CHG: Charge control pin

Functional Features

1. Charging Algorithm: BQ2004SNTRG4 utilizes an efficient charging algorithm that ensures optimal charging performance for various types of rechargeable batteries.
2. Voltage and Current Regulation: The IC provides high accuracy voltage and current regulation, ensuring precise control over the charging process.
3. Temperature Monitoring and Protection: BQ2004SNTRG4 incorporates temperature sensing capabilities to monitor battery temperature and prevent overheating during charging.
4. Overcharge and Over-discharge Protection: This IC includes built-in protection mechanisms to prevent overcharging and over-discharging of batteries, enhancing their lifespan.
5. Short-circuit Protection: BQ2004SNTRG4 features short-circuit protection to safeguard the battery and the charging circuitry from potential damage.
6. Low Power Consumption: The IC is designed to consume minimal power during operation, maximizing energy efficiency.

Advantages and Disadvantages

Advantages

• Efficient charging algorithm ensures optimal battery performance.
• High accuracy voltage and current regulation.
• Comprehensive protection mechanisms enhance battery safety.
• Low power consumption contributes to energy efficiency.

Disadvantages

• Limited charging current range (10mA - 2A).
• Operating temperature range may not be suitable for extreme environments.

Working Principles

BQ2004SNTRG4 operates by monitoring the battery voltage, temperature, and charging current. It uses an internal algorithm to regulate the charging process, adjusting the charging current and voltage as needed. The IC continuously monitors the battery's state and applies appropriate charging techniques to ensure efficient and safe charging.

Detailed Application Field Plans

BQ2004SNTRG4 finds applications in various fields, including: 1. Portable electronic devices: Used to charge batteries in smartphones, tablets, and portable gaming consoles. 2. Electric vehicles: Integrated into the charging systems of electric cars and bikes. 3. Renewable energy systems: Employed in solar-powered battery charging systems. 4. Industrial equipment: Utilized for managing battery charging in industrial machinery and equipment.

Detailed and Complete Alternative Models

1. BQ2002SNTRG4: Similar to BQ2004SNTRG4, but with a lower charging current range (10mA - 500mA).
2. BQ2008SNTRG4: Offers higher charging current range (100mA - 3A) and additional features such as battery authentication.

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

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