BQ24005PWPG4

Product Overview

Category

The BQ24005PWPG4 belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This product is primarily used for battery charging applications in various electronic devices such as smartphones, tablets, portable media players, and other portable electronic devices.

Characteristics

• The BQ24005PWPG4 is a highly efficient linear charger with an integrated power path management function.
• It supports single-cell Li-Ion or Li-Polymer battery charging.
• This IC offers a wide input voltage range, making it suitable for various power sources.
• It provides accurate charge termination and conditioning for optimal battery performance.
• The BQ24005PWPG4 includes built-in safety features like thermal regulation and overvoltage/overcurrent protection.

Package

The BQ24005PWPG4 comes in a small 20-pin TSSOP (Thin Shrink Small Outline Package) package. This package ensures easy integration into compact electronic devices while providing good thermal dissipation.

Essence

The essence of the BQ24005PWPG4 lies in its ability to efficiently charge and manage single-cell Li-Ion or Li-Polymer batteries, ensuring safe and optimized battery performance.

Packaging/Quantity

The BQ24005PWPG4 is typically available in reels containing 250 units per reel.

Specifications

• Input Voltage Range: 4.35V to 6.45V
• Charging Current: Up to 1A
• Charge Termination: Programmable
• Operating Temperature Range: -40°C to +85°C
• Battery Voltage Regulation Accuracy: ±0.5%
• Power Path Management Efficiency: Up to 94%

Detailed Pin Configuration

The BQ24005PWPG4 has a total of 20 pins. Here is a detailed pin configuration:

1. VBUS: Input voltage from the USB port.
2. AC/DC: Input voltage from an AC/DC adapter.
3. PGND: Power ground.
4. STAT: Status output pin.
5. ISET: Charging current setting pin.
6. TS: Temperature sense input.
7. BAT: Battery voltage output.
8. SYS: System voltage output.
9. EN2: Enable input for power path management.
10. EN1: Enable input for charger.
11. PROG: Charge termination programming pin.
12. DPM: Dual-path mode control pin.
13. ILIM: Input current limit setting pin.
14. SDA: I2C data input/output.
15. SCL: I2C clock input.
16. INT: Interrupt output pin.
17. TMR: Timer input pin.
18. SRN: Serial resistor network connection pin.
19. NC: No connection.
20. GND: Ground.

Functional Features

• Integrated power path management allows simultaneous charging and system operation.
• Programmable charge termination ensures optimal battery performance and safety.
• Accurate battery voltage regulation enhances battery life and stability.
• Built-in safety features protect against overvoltage, overcurrent, and thermal issues.
• I2C interface enables communication with external devices for advanced control and monitoring.

Advantages and Disadvantages

Advantages

• Efficient charging and power management for single-cell Li-Ion or Li-Polymer batteries.
• Wide input voltage range accommodates various power sources.
• Compact package size facilitates integration into portable electronic devices.
• Accurate charge termination and conditioning enhance battery performance.
• Built-in safety features provide protection against potential hazards.

Disadvantages

• Limited to single-cell battery charging applications.
• Requires additional external components for complete functionality.
• Relatively higher cost compared to simpler charging solutions.

Working Principles

The BQ24005PWPG4 operates by regulating the charging current and voltage to ensure safe and efficient charging of single-cell Li-Ion or Li-Polymer batteries. It utilizes a power path management function that allows simultaneous charging and system operation, enabling uninterrupted device usage even during charging. The IC monitors battery voltage, temperature, and charging status to provide accurate charge termination and conditioning for optimal battery performance.

Detailed Application Field Plans

The BQ24005PWPG4 finds extensive application in various portable electronic devices, including but not limited to: - Smartphones - Tablets - Portable media players - Wearable devices - Bluetooth headsets - GPS devices - Digital cameras

Detailed and Complete Alternative Models

1. BQ24006PWPR: Similar to BQ24005PWPG4 with enhanced power path management features.
2. BQ24007PWPR: Higher charging current capability compared to BQ24005PWPG4.
3. BQ24008PWPR: Integrated USB OTG (On-The-Go) functionality along with charging capabilities.

These alternative models offer similar functionalities