Overview
The BQ24072RGTR is a standalone 1-cell, 1.5-A linear battery charger and system power path management device produced by Texas Instruments. This IC is designed for space-limited applications and is fully compliant with USB charger standards. It integrates dynamic power path management (DPPM) to simultaneously and independently power the system and charge the battery. The device is suitable for one-cell Li-ion or Li-polymer battery charging in various portable electronic devices.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Rating | 28 V | V |
| Maximum Input Current | Selectable 100 mA and 500 mA | mA |
| Maximum Charge Current | Up to 1.5 A | A |
| Battery Voltage Regulation | 4.2 V | V |
| System Output Voltage | VBAT + 225 mV | V |
| Package Type | VQFN (16 pins) | - |
| Body Size | 3.00 mm × 3.00 mm | mm |
| Temperature Range | 0°C to 125°C | °C |
Key Features
- Fully compliant USB charger with selectable 100-mA and 500-mA maximum input current.
- Integrated dynamic power path management (DPPM) function to simultaneously and independently power the system and charge the battery.
- Supports up to 1.5-A charge current with current monitoring output (ISET).
- Programmable input current limit up to 1.5 A for wall adapters.
- System output tracks battery voltage.
- Reverse current, short-circuit, and thermal protection.
- NTC thermistor input for temperature monitoring.
- Proprietary start-up sequence to limit inrush current.
- Status indication – charging/done, power good.
- IEC 62368-1 Certification for safety.
Applications
The BQ24072RGTR is ideal for various portable electronic devices that require efficient and safe battery charging and power management. These include:
- Smartphones and tablets
- Laptops and ultrabooks
- Portable media players and gaming devices
- Wearable technology such as smartwatches and fitness trackers
- Other battery-powered consumer electronics
Q & A
- What is the maximum charge current supported by the BQ24072RGTR?
The BQ24072RGTR supports up to 1.5-A charge current.
- Is the BQ24072RGTR compliant with USB charger standards?
- What is the system output voltage of the BQ24072RGTR?
The system output voltage tracks the battery voltage plus 225 mV (VBAT + 225 mV).
- Does the BQ24072RGTR have thermal protection?
- How does the BQ24072RGTR manage power path?
- What is the package type and size of the BQ24072RGTR?
- Does the BQ24072RGTR support NTC thermistor input?
- What safety certifications does the BQ24072RGTR have?
- How does the BQ24072RGTR indicate charging status?
- What is the input voltage rating of the BQ24072RGTR?
