BQ24080DRCR - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: Battery Charger IC

Characteristics: - Single-cell Li-Ion and Li-Pol battery charger - Highly integrated solution for portable devices - Provides accurate charging control and protection features - Optimized for space-constrained applications

Package: VSON (Very Small Outline No-Lead) package

Essence: The BQ24080DRCR is a battery charger IC designed for single-cell Li-Ion and Li-Pol batteries. It offers a highly integrated solution with advanced charging control and protection features, making it suitable for various portable devices.

Packaging/Quantity: The BQ24080DRCR is available in a VSON package. The quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 4.35V to 6.45V
• Charge Voltage Range: 3.5V to 4.44V
• Charge Current Range: Up to 1.5A
• Pre-Charge Current: 100mA
• Termination Current: 10% of the programmed charge current
• Safety Timer: 8 hours
• Thermal Regulation: Yes
• Battery Temperature Monitoring: Yes
• Status Outputs: Charging, Charge Complete, Fault

Detailed Pin Configuration

The BQ24080DRCR has the following pin configuration:

1. EN (Enable)
2. STAT (Status)
3. PG (Power Good)
4. TS (Thermal Sense)
5. BAT (Battery)
6. SYS (System)
7. GND (Ground)
8. VBUS (USB Bus Voltage)
9. ISET (Charge Current Set)

Functional Features

• Integrated power FETs for charging
• Automatic power source selection (USB or AC adapter)
• Programmable charge current
• Thermal regulation for temperature protection
• Safety timer to prevent overcharging
• Charge status indication through status outputs

Advantages and Disadvantages

Advantages: - Highly integrated solution reduces external component count - Accurate charging control ensures optimal battery performance - Compact package suitable for space-constrained applications - Automatic power source selection simplifies system design

Disadvantages: - Limited to single-cell Li-Ion and Li-Pol batteries - May require additional external components for specific applications

Working Principles

The BQ24080DRCR operates by monitoring the input voltage and selecting the appropriate power source (USB or AC adapter) for charging. It regulates the charge current based on the programmed settings and continuously monitors the battery temperature. The IC also incorporates safety features such as a timer to prevent overcharging and thermal regulation to protect against excessive heat.

Detailed Application Field Plans

The BQ24080DRCR is commonly used in various portable devices, including: - Smartphones - Tablets - Portable media players - Bluetooth headsets - Wearable devices

Detailed and Complete Alternative Models

1. BQ24081DRCR - Similar to BQ24080DRCR with additional USB OTG support.
2. BQ24082DRCR - Similar to BQ24080DRCR with higher charge current capability.
3. BQ24083DRCR - Similar to BQ24080DRCR with integrated load switch for system power control.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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