Overview
The BQ24005PWP, produced by Texas Instruments, is an advanced Li-ion linear charge management IC designed for highly integrated and space-limited applications. This device is part of the bq2400x series and is specifically tailored for two-cell Li-ion battery packs with either coke or graphite anodes. It combines high-accuracy current and voltage regulation, an integrated FET pass transistor, reverse-blocking Schottky, and thermal protection, making it ideal for low-dropout linear charger designs.
The BQ24005PWP features a 20-lead HTSSOP PowerPAD package, ensuring efficient thermal management. It includes various safety features such as battery conditioning, temperature or input-power monitoring, charge termination, and charge-status indication, making it a robust solution for battery management in portable devices.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | 20-Lead HTSSOP PowerPAD | |
| Pins | 20 | |
| Operating Temperature Range | -40°C to 70°C | °C |
| Supply Voltage | 4.5 V to 10 V | V |
| Output Current | Up to 1.2 A | A |
| Voltage Regulation Accuracy | ±1% | |
| Storage Temperature Range | -65°C to 150°C | °C |
| Mounting Type | Surface Mount |
Key Features
- Highly integrated solution with FET pass transistor and reverse-blocking Schottky and thermal protection.
- Integrated voltage and current regulation with programmable charge current.
- High-accuracy voltage regulation (±1%).
- Ideal for low-dropout linear charger designs for two-cell Li-ion packs with coke or graphite anodes.
- Up to 1.2-A continuous charge current.
- Safety-charge timer during preconditioning and fast charge.
- Integrated cell conditioning for reviving deeply discharged cells and minimizing heat dissipation during the initial stage of charge.
- Optional temperature or input-power monitoring before and during charge.
- Various charge-status output options for driving single, double, or bicolor LEDs or host-processor interface.
- Charge termination by minimum current and time.
- Low-power sleep mode.
Applications
The BQ24005PWP is designed for use in various portable electronic devices that require efficient and safe Li-ion battery charging. These include:
- PDAs (Personal Digital Assistants)
- Internet appliances
- Smartphones and other mobile devices
- Laptops and tablet computers
- Other battery-powered consumer electronics
Q & A
- What is the BQ24005PWP used for?
The BQ24005PWP is used for managing the charging of two-cell Li-ion battery packs in portable electronic devices.
- What is the package type of the BQ24005PWP?
The BQ24005PWP comes in a 20-lead HTSSOP PowerPAD package.
- What is the operating temperature range of the BQ24005PWP?
The operating temperature range is -40°C to 70°C.
- What is the maximum charge current of the BQ24005PWP?
The maximum charge current is up to 1.2 A.
- How accurate is the voltage regulation of the BQ24005PWP?
The voltage regulation accuracy is ±1%.
- Does the BQ24005PWP support temperature monitoring?
- How does the BQ24005PWP indicate charge status?
The device provides various charge-status output options, including driving single, double, or bicolor LEDs or a host-processor interface.
- What safety features does the BQ24005PWP include?
The device includes safety features such as a safety-charge timer, thermal protection, and charge termination by minimum current and time.
- Can the BQ24005PWP be used for deeply discharged cells?
- Does the BQ24005PWP have a low-power mode?
- What is the storage temperature range for the BQ24005PWP?
The storage temperature range is -65°C to 150°C.
