BQ24002PWPG4

Product Overview

Category

The BQ24002PWPG4 belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This IC is commonly used in portable electronic devices, such as smartphones, tablets, and digital cameras, to efficiently charge lithium-ion batteries.

Characteristics

• High efficiency: The BQ24002PWPG4 incorporates advanced charging algorithms that optimize the charging process, resulting in high charging efficiency.
• Fast charging: This IC supports fast charging capabilities, allowing for quicker battery recharge times.
• Compact package: The BQ24002PWPG4 is available in a small-sized package, making it suitable for space-constrained applications.
• Low power consumption: It features low quiescent current, minimizing power loss during standby or idle modes.

Package and Quantity

The BQ24002PWPG4 is offered in a small-footprint 20-pin TSSOP (Thin Shrink Small Outline Package). It is typically sold in reels containing a quantity of 250 units per reel.

Specifications

• Input voltage range: 4.35V - 6.45V
• Charging voltage range: 3.5V - 4.4V
• Maximum charging current: 1.5A
• Operating temperature range: -40°C to +85°C
• Standby current: < 100µA

Pin Configuration

The BQ24002PWPG4 has the following pin configuration:

```

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| | | 1 2 3 4 5 6 7 8 9 10 | |_______________________________________|

Pin 1: VBAT Pin 2: STAT Pin 3: PGND Pin 4: VSS Pin 5: ISET Pin 6: TS Pin 7: PROG Pin 8: VCC Pin 9: EN Pin 10: ILIM

(Note: Pins 11-20 are not shown for brevity) ```

Functional Features

1. Charging control: The BQ24002PWPG4 provides precise control over the charging process, ensuring safe and efficient battery charging.
2. Thermal regulation: It incorporates a thermal regulation feature that prevents excessive heat buildup during charging, protecting both the battery and the IC itself.
3. Charge termination: This IC employs an accurate charge termination mechanism to prevent overcharging, which can degrade battery performance and lifespan.
4. Battery detection: The BQ24002PWPG4 includes battery detection circuitry, allowing it to identify the connected battery type and adjust the charging parameters accordingly.

Advantages and Disadvantages

Advantages

• High charging efficiency leads to reduced charging times.
• Compact package size enables integration into small devices.
• Low power consumption minimizes energy wastage.
• Accurate charge termination prevents overcharging, enhancing battery longevity.

Disadvantages

• Limited maximum charging current may not be suitable for high-capacity batteries.
• Lack of built-in voltage regulation for the input power source may require additional external components.

Working Principles

The BQ24002PWPG4 operates by regulating the charging current and voltage supplied to the connected lithium-ion battery. It utilizes a combination of control circuitry, feedback mechanisms, and charging algorithms to ensure optimal charging performance. The IC continuously monitors the battery's voltage and temperature, adjusting the charging parameters accordingly to maintain safe and efficient charging.

Detailed Application Field Plans

The BQ24002PWPG4 is widely used in various portable electronic devices, including but not limited to: - Smartphones - Tablets - Digital cameras - Portable media players - Bluetooth headsets

Detailed and Complete Alternative Models

1. BQ24003PWPG4: Similar to the BQ24002PWPG4, but with a higher maximum charging current of 2A.
2. BQ24004PWPG4: Offers additional features such as battery temperature monitoring and adjustable charging current limit.
3. BQ24005PWPG4: Provides integrated voltage regulation for the input power source, eliminating the need for external components.

These alternative models offer different specifications and features, allowing designers to choose the most suitable option based on their specific requirements.

(Note: The above information is accurate at the time of writing and may be subject to change. It is recommended to refer to the manufacturer's datasheet for the most up-to-date information.)

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