Overview
The BQ24072TRGTR is a highly integrated single-cell Li-Ion and Li-Polymer battery charger IC designed by Texas Instruments. It is specifically tailored for portable and battery-powered applications, offering efficient and reliable charging for Li-Ion batteries. The IC features integrated power FETs, current thermal regulation, and charge status indicators to ensure safe and efficient battery charging.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Input Voltage | Maximum input voltage | 6.6 V |
| Battery Charge Voltage | Regulated battery charge voltage | 4.16 V to 4.24 V |
| Charge Current | Programmable charge current | Up to 1.5 A |
| Package Type | Package form factor | 16-VFQFN Exposed Pad |
| Pins | Number of pins | 16 |
| Thermal Regulation | Junction-to-ambient thermal resistance | 45.8 °C/W |
| Power Path Management | System input voltage regulation | VBAT + 225 mV |
Key Features
- Integrated Power FETs: Reduces the need for external components.
- Thermal Regulation: Monitors and adjusts charge current based on internal temperature to ensure safe charging.
- Charge Status Indicators: Provides indicators for monitoring the charging process.
- Programmable Charge Current: Allows flexibility in setting the charge current based on battery requirements using external resistors.
- Power Path Management: Enables instant system turn-on even with a totally discharged battery and allows the battery to supplement system current requirements.
- Small Package: The 16-VFQFN Exposed Pad package offers space-saving benefits for compact designs.
Applications
- Portable Devices: Ideal for charging Li-Ion batteries in portable electronic devices such as smartphones, tablets, and handheld electronics.
- Battery-Powered Systems: Suitable for battery-powered systems and applications that require efficient and reliable battery charging.
- Portable Chargers and Power Banks: Used in portable chargers and power banks for on-the-go charging.
Q & A
- What is the BQ24072TRGTR?
The BQ24072TRGTR is a highly integrated single-cell Li-Ion and Li-Polymer battery charger IC designed by Texas Instruments.
- How does the BQ24072TRGTR work?
The IC manages the charge current and voltage to safely charge the connected battery, incorporating features such as thermal regulation, safety timers, and charge status indicators.
- How many pins does the BQ24072TRGTR have and what are their functions?
The BQ24072TRGTR has 16 pins, including input power supply, battery connection, thermal regulation sense input, charge enable, and power good indicator among others.
- What are the pros and cons of the BQ24072TRGTR?
Pros include integrated solution, thermal regulation, charge status indicators, programmable charge current, and a small package. Cons include limitation to single-cell Li-Ion and Li-Polymer batteries and potential need for additional external protection circuits.
- What is the maximum charge current of the BQ24072TRGTR?
The maximum charge current is up to 1.5 A, which is programmable using external resistors.
- How does the thermal regulation work in the BQ24072TRGTR?
The IC monitors the internal temperature and reduces the charge current if the internal temperature threshold is exceeded, ensuring safe charging in various temperature conditions.
- What is the power path management feature in the BQ24072TRGTR?
The power path management architecture enables instant system turn-on even with a totally discharged battery and allows the battery to supplement system current requirements when the adapter cannot deliver the peak system currents.
- Can the BQ24072TRGTR be used in multi-cell battery systems?
No, the BQ24072TRGTR is limited to charging single-cell Li-Ion and Li-Polymer batteries. For multi-cell systems, complementary ICs like the BQ24171 can be used.
- What is the package type of the BQ24072TRGTR?
The BQ24072TRGTR is housed in a 16-VFQFN Exposed Pad package.
- How does the charge status indicator work in the BQ24072TRGTR?
The IC provides charge status indicators to monitor the charging process, including a power good indicator output pin and charge status indicator pin.
