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BQ2002ESN
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BQ2002ESN

Product Overview

Category

BQ2002ESN belongs to the category of integrated circuits (ICs).

Use

The BQ2002ESN IC is primarily used for battery charging applications.

Characteristics

  • Package: The BQ2002ESN is available in a small outline package (SOP).
  • Essence: This IC is designed to provide efficient and reliable battery charging.
  • Packaging/Quantity: The BQ2002ESN is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

The BQ2002ESN has the following specifications:

  • Input Voltage Range: 4.5V to 26V
  • Charging Current Range: 10mA to 1A
  • Operating Temperature Range: -40°C to +85°C
  • Battery Voltage Range: 2.5V to 20V
  • Charge Termination Voltage Accuracy: ±1%

Detailed Pin Configuration

The BQ2002ESN IC features the following pin configuration:

  1. VCC: Power supply input
  2. GND: Ground reference
  3. BAT: Battery connection
  4. PROG: Programming pin for setting charging current
  5. STAT: Status output pin
  6. TEMP: Temperature sensing pin
  7. TS: Thermistor input for temperature monitoring
  8. VREF: Reference voltage output

Functional Features

The BQ2002ESN offers the following functional features:

  • Constant Current/Constant Voltage (CC/CV) charging algorithm
  • Programmable charging current through the PROG pin
  • Temperature monitoring for safe charging
  • Charge termination based on voltage accuracy
  • Status output for charging indication

Advantages and Disadvantages

Advantages: - Efficient and reliable battery charging - Wide input voltage range allows for versatile applications - Accurate charge termination voltage ensures optimal battery life

Disadvantages: - Limited charging current range (10mA to 1A) - Requires external thermistor for temperature monitoring

Working Principles

The BQ2002ESN operates based on the CC/CV charging algorithm. It starts by supplying a constant current to the battery until it reaches a predefined voltage level. Once this voltage is reached, the IC switches to a constant voltage mode, maintaining the voltage while reducing the charging current. This ensures a controlled and safe charging process.

Detailed Application Field Plans

The BQ2002ESN is commonly used in various battery-powered applications, including: - Portable electronic devices - Power tools - Electric vehicles - Solar energy systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the BQ2002ESN are: - BQ2000SN: Similar IC with a lower charging current range (5mA to 500mA) - BQ2003SN: Similar IC with a higher charging current range (100mA to 2A) - BQ2004SN: Similar IC with additional features like overvoltage protection and temperature compensation

These alternative models provide options for different charging current requirements and additional functionalities.

In conclusion, the BQ2002ESN is an integrated circuit designed for efficient and reliable battery charging. With its CC/CV charging algorithm, programmable charging current, and accurate charge termination, it offers a versatile solution for various battery-powered applications.

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av BQ2002ESN i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of BQ2002ESN in technical solutions:

  1. Question: What is the BQ2002ESN?
    Answer: The BQ2002ESN is a battery charger IC designed for use in various technical solutions.

  2. Question: What is the input voltage range supported by the BQ2002ESN?
    Answer: The BQ2002ESN supports an input voltage range of 4.5V to 26V.

  3. Question: Can the BQ2002ESN charge multiple types of batteries?
    Answer: Yes, the BQ2002ESN is capable of charging various types of batteries, including lead-acid and lithium-ion batteries.

  4. Question: Does the BQ2002ESN have built-in protection features?
    Answer: Yes, the BQ2002ESN includes built-in protection features such as overvoltage, overcurrent, and thermal protection.

  5. Question: What is the maximum charging current supported by the BQ2002ESN?
    Answer: The BQ2002ESN can support a maximum charging current of up to 2A.

  6. Question: Can the BQ2002ESN be used in portable devices?
    Answer: Yes, the BQ2002ESN is suitable for use in portable devices due to its compact size and low power consumption.

  7. Question: Does the BQ2002ESN provide charging status indicators?
    Answer: Yes, the BQ2002ESN includes charging status indicators such as LED outputs for easy monitoring.

  8. Question: Is the BQ2002ESN programmable?
    Answer: No, the BQ2002ESN does not have programmable features. It operates based on its internal charging algorithm.

  9. Question: Can the BQ2002ESN be used in automotive applications?
    Answer: Yes, the BQ2002ESN is suitable for automotive applications as it can handle the required voltage and temperature ranges.

  10. Question: Are there any evaluation boards available for the BQ2002ESN?
    Answer: Yes, Texas Instruments provides evaluation boards that can help in testing and prototyping with the BQ2002ESN.

Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.