Overview
The Texas Instruments BQ51050BRHLT is a high-efficiency, Qi-compliant wireless power receiver with an integrated Li-Ion/Li-Pol battery charge controller. This device is designed for portable applications and combines a wireless power receiver, rectifier, and battery charger in a single, compact package. It is part of the bq5105x series, which enables efficient AC-DC power conversion and complies with the Qi v1.2 communication protocol. The BQ51050BRHLT works in conjunction with the bq500212A transmitter-side controller to form a complete wireless power transfer system for direct battery charging solutions.
Key Specifications
| Specification | Value |
|---|---|
| Package Type | VQFN (RHL) with 20 pins |
| Operating Temperature Range | 0°C to 125°C |
| Maximum Input Voltage Tolerance | 20 V |
| Output Voltage Options | 4.20 V, 4.35 V, 4.40 V |
| Maximum Charging Current | Up to 1.5 A |
| Peak AC-DC Charging Efficiency | 93% |
| Thermal Shutdown and Overcurrent Protection | Yes |
| Temperature Monitoring and Fault Detection | Yes |
| Package Dimensions | 4.5 mm x 3.5 mm |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Moisture Sensitivity Level (MSL) | 2 |
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 20-V maximum input voltage tolerance and 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.
- Low-impedance synchronous rectifier and low-dropout regulator (LDO) using low-resistance N-MOSFETs.
Applications
- Battery packs.
- Cell phones and smartphones.
- Headsets.
- Portable media players.
- Other handheld devices.
Q & A
- What is the BQ51050BRHLT used for? The BQ51050BRHLT is used as a wireless power receiver and Li-Ion/Li-Pol battery charger for portable applications.
- What is the maximum charging current supported by the BQ51050BRHLT? The BQ51050BRHLT supports up to 1.5 A charging current.
- What are the output voltage options for the BQ51050BRHLT? The output voltage options are 4.20 V, 4.35 V, and 4.40 V.
- What is the peak AC-DC charging efficiency of the BQ51050BRHLT? The peak AC-DC charging efficiency is 93%.
- Does the BQ51050BRHLT have thermal shutdown and overcurrent protection? Yes, it does.
- Is the BQ51050BRHLT compatible with any industry standards? Yes, it is compatible with the WPC v1.2 Qi industry standard.
- What type of package does the BQ51050BRHLT come in? The BQ51050BRHLT comes in a VQFN (RHL) package with 20 pins.
- What are the operating temperature ranges for the BQ51050BRHLT? The operating temperature range is from 0°C to 125°C.
- Does the BQ51050BRHLT have temperature monitoring and fault detection features? Yes, it does.
- What is the maximum input voltage tolerance for the BQ51050BRHLT? The maximum input voltage tolerance is 20 V.
