Texas Instruments
Imej mungkin representasi.
Lihat spesifikasi untuk butiran produk.
BQ2003S-N
Lihat Butiran Helaian data

BQ2003S-N

Product Overview

Category

BQ2003S-N belongs to the category of integrated circuits (ICs).

Use

The BQ2003S-N IC is primarily used for battery charging applications.

Characteristics

  • Package: The BQ2003S-N is available in a small outline package (SOP).
  • Essence: This IC is designed to provide efficient and reliable battery charging solutions.
  • Packaging/Quantity: The BQ2003S-N is typically packaged in reels, with a quantity of 2500 units per reel.

Specifications

The BQ2003S-N has the following specifications:

  • Input Voltage Range: 4.5V to 26V
  • Charging Current Range: 50mA to 2A
  • Charge Termination Voltage: Programmable from 1.5V to 24V
  • Temperature Range: -40°C to +85°C
  • Operating Frequency: 100kHz

Detailed Pin Configuration

The BQ2003S-N IC has the following pin configuration:

  1. VCC: Power supply input
  2. GND: Ground reference
  3. PROG: Programming pin for charge termination voltage
  4. BAT: Battery connection
  5. VSS: Negative terminal of sense resistor
  6. VDD: Positive terminal of sense resistor
  7. TS: Temperature sense pin
  8. STAT: Status output pin
  9. ISET: Current set pin
  10. VREF: Reference voltage output

Functional Features

The BQ2003S-N offers the following functional features:

  • Constant Current (CC) and Constant Voltage (CV) charging modes
  • Programmable charge termination voltage
  • Temperature monitoring for thermal protection
  • LED status indication
  • Overvoltage and overcurrent protection

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile applications - Programmable charge termination voltage offers flexibility - Temperature monitoring ensures safe charging - LED status indication provides visual feedback

Disadvantages: - Limited charging current range may not be suitable for high-power applications - Single-package solution may limit scalability for complex charging systems

Working Principles

The BQ2003S-N operates based on the CC-CV charging algorithm. In the constant current phase, it delivers a regulated current to the battery. Once the battery voltage reaches the programmed charge termination voltage, the IC switches to the constant voltage phase, maintaining a steady voltage until the charging current drops below a certain threshold.

Detailed Application Field Plans

The BQ2003S-N is commonly used in various battery-powered applications, including: - Portable electronic devices (e.g., smartphones, tablets) - Power tools - Electric vehicles - Solar energy systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the BQ2003S-N are: - BQ2002S-N - BQ2004S-N - BQ2005S-N - BQ2006S-N

These alternatives can be considered based on specific requirements and compatibility with the target application.

Word count: 346 words

Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi BQ2003S-N dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of BQ2003S-N in technical solutions:

  1. Q: What is the BQ2003S-N? A: The BQ2003S-N is a battery charger IC designed for charging single-cell lithium-ion or lithium-polymer batteries.

  2. Q: What is the input voltage range of the BQ2003S-N? A: The BQ2003S-N has an input voltage range of 4.5V to 6.5V.

  3. Q: What is the maximum charge current supported by the BQ2003S-N? A: The BQ2003S-N supports a maximum charge current of 1A.

  4. Q: Can the BQ2003S-N be used for fast charging applications? A: No, the BQ2003S-N is not designed for fast charging. It is more suitable for standard charging applications.

  5. Q: Does the BQ2003S-N have built-in overcharge protection? A: Yes, the BQ2003S-N includes built-in overcharge protection to prevent damage to the battery.

  6. Q: Can the BQ2003S-N be used with different battery chemistries? A: No, the BQ2003S-N is specifically designed for lithium-ion and lithium-polymer batteries only.

  7. Q: Does the BQ2003S-N support trickle charging? A: Yes, the BQ2003S-N supports trickle charging to maintain the battery at full capacity.

  8. Q: What is the typical efficiency of the BQ2003S-N? A: The typical efficiency of the BQ2003S-N is around 85% to 90%.

  9. Q: Can the BQ2003S-N be used in portable devices? A: Yes, the BQ2003S-N is suitable for use in portable devices such as smartphones, tablets, and portable power banks.

  10. Q: Are there any evaluation boards or reference designs available for the BQ2003S-N? A: Yes, Texas Instruments provides evaluation boards and reference designs that can help with the implementation of the BQ2003S-N in various applications.

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