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BQ2002FSN
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BQ2002FSN

Product Overview

The BQ2002FSN is a battery charge controller belonging to the category of integrated circuits. It is commonly used in battery charging applications and is known for its high efficiency and precise control over the charging process. The package includes the BQ2002FSN IC, which is essential for managing the charging of batteries. The device is characterized by its compact size, low power consumption, and reliable performance. It is typically available in a small outline package (SOP) with a specified quantity per package.

Specifications

  • Input Voltage Range: 4.5V to 28V
  • Charge Voltage Range: 4.1V to 20V
  • Maximum Charge Current: 2A
  • Operating Temperature Range: -40°C to 85°C
  • Package Type: Small Outline Package (SOP)

Detailed Pin Configuration

The BQ2002FSN features a standard pin configuration with specific functions assigned to each pin. The detailed pin configuration is as follows: 1. VCC: Power supply input 2. GND: Ground connection 3. BAT: Battery connection 4. PROG: Programming pin 5. TS: Temperature sense pin 6. VREF: Reference voltage output 7. VFB: Feedback voltage input 8. STAT: Status indicator output

Functional Features

The BQ2002FSN offers several functional features, including: - Precise voltage regulation for optimal battery charging - Temperature sensing for temperature-compensated charging - Programmable charge current and voltage settings - Status indication for charge completion and fault detection

Advantages and Disadvantages

Advantages

  • High charging efficiency
  • Compact size
  • Flexible programming options
  • Reliable temperature compensation

Disadvantages

  • Limited maximum charge current
  • Restricted input voltage range

Working Principles

The BQ2002FSN operates based on a constant voltage/constant current charging algorithm. It regulates the charging current and voltage to ensure safe and efficient charging of the connected battery. The device also incorporates temperature compensation to adjust the charging parameters based on the battery temperature, enhancing the overall charging performance.

Detailed Application Field Plans

The BQ2002FSN is widely used in various applications, including: - Portable electronic devices - Battery-powered tools - Solar-powered systems - Electric vehicles

Detailed and Complete Alternative Models

Some alternative models to the BQ2002FSN include: - BQ2000SN - BQ2001SN - BQ2003SN - BQ2004SN

In conclusion, the BQ2002FSN is a versatile battery charge controller that offers precise control and efficient charging capabilities. Its compact size and reliable performance make it suitable for a wide range of battery-powered applications.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi BQ2002FSN dalam penyelesaian teknikal

  1. What is the BQ2002FSN?

    • The BQ2002FSN is a precision voltage and current integrated circuit designed for battery charging applications.

  2. What is the input voltage range of the BQ2002FSN?

    • The input voltage range of the BQ2002FSN is typically 8V to 16V.

  3. What is the maximum charge current supported by the BQ2002FSN?

    • The BQ2002FSN can support a maximum charge current of 500mA.

  4. Can the BQ2002FSN be used for charging lithium-ion batteries?

    • No, the BQ2002FSN is specifically designed for charging nickel-cadmium (Ni-Cd) and nickel-metal-hydride (Ni-MH) batteries.

  5. Does the BQ2002FSN have built-in thermal regulation?

    • Yes, the BQ2002FSN features built-in thermal regulation to prevent overheating during charging.

  6. What is the typical charge termination method used by the BQ2002FSN?

    • The BQ2002FSN typically uses negative delta voltage (-ΔV) detection to terminate the charging process.

  7. Is the BQ2002FSN suitable for trickle charging applications?

    • Yes, the BQ2002FSN can be configured for trickle charging to maintain the capacity of the battery over time.

  8. What are the typical safety features of the BQ2002FSN?

    • The BQ2002FSN includes overvoltage protection, overcurrent protection, and thermal shutdown to ensure safe charging operations.

  9. Can the BQ2002FSN operate in a wide temperature range?

    • Yes, the BQ2002FSN is designed to operate within a wide temperature range, typically from -40°C to 85°C.

  10. What are the typical applications of the BQ2002FSN?

    • The BQ2002FSN is commonly used in portable electronic devices, cordless phones, and other battery-powered systems requiring precise charging control.