Overview
The Texas Instruments BQ51050BYFPR is a highly integrated, Qi (WPC) compliant wireless power receiver and Li-Ion/Li-Pol battery charger designed for portable applications. This device combines a wireless power receiver, rectifier, and battery charger into a single, compact package. It is part of the bq5105x family, which provides efficient AC-DC power conversion and integrates the necessary digital controller to comply with the Qi v1.2 communication protocol. This ensures efficient and safe battery charging for a variety of portable devices.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage Options | 4.20 V, 4.35 V, 4.40 V | V |
| Maximum Charging Current | 1.5 A | A |
| Peak AC-DC Charging Efficiency | 93% | % |
| Maximum Input Voltage Tolerance | 20 V | V |
| Input Overvoltage Protection | Yes | |
| Thermal Shutdown and Overcurrent Protection | Yes | |
| Temperature Monitoring and Fault Detection | Yes | |
| Package Options | DSBGA (28 pins), VQFN (20 pins) | |
| Junction Temperature Range | -40°C to 150°C | °C |
| Storage Temperature Range | -65°C to 150°C | °C |
Key Features
- Single-stage wireless power receiver and Li-Ion/Li-Pol battery charger in a single package.
- Supports up to 1.5 A charging current.
- 93% peak AC-DC charging efficiency.
- Robust architecture with input overvoltage protection, thermal shutdown, and overcurrent protection.
- Temperature monitoring and fault detection.
- Compatible with WPC v1.2 Qi industry standard.
- Power stage output tracks rectifier and battery voltage for maximum efficiency.
- Available in small DSBGA and VQFN packages.
- Integrates low-impedance synchronous rectifier, low-dropout regulator (LDO), digital control, and charger controller.
Applications
- Battery packs.
- Cell phones and smartphones.
- Headsets.
- Portable media players.
- Other handheld devices.
Q & A
- What is the BQ51050BYFPR used for?
The BQ51050BYFPR is used as a wireless power receiver and Li-Ion/Li-Pol battery charger for portable applications. - What are the output voltage options for the BQ51050BYFPR?
The output voltage options are 4.20 V, 4.35 V, and 4.40 V. - What is the maximum charging current supported by the BQ51050BYFPR?
The maximum charging current supported is up to 1.5 A. - What is the peak AC-DC charging efficiency of the BQ51050BYFPR?
The peak AC-DC charging efficiency is 93%. - Does the BQ51050BYFPR have overvoltage protection?
Yes, it has input overvoltage protection. - What are the package options for the BQ51050BYFPR?
The package options are DSBGA (28 pins) and VQFN (20 pins). - Is the BQ51050BYFPR compatible with any industry standards?
Yes, it is compatible with the WPC v1.2 Qi industry standard. - What kind of protection does the BQ51050BYFPR offer?
The device offers thermal shutdown, overcurrent protection, and temperature monitoring and fault detection. - How does the BQ51050BYFPR ensure maximum efficiency?
The power stage output tracks the rectifier and battery voltage to ensure maximum efficiency across the full charge cycle. - What other components does the BQ51050BYFPR integrate?
The device integrates a low-impedance synchronous rectifier, low-dropout regulator (LDO), digital control, and charger controller.
