Overview
The BQ51013B, produced by Texas Instruments, is a single-chip, advanced, and flexible secondary-side device designed for wireless power transfer in portable applications. It provides up to 5 W of power and integrates the necessary components for AC-to-DC power conversion and regulation. The device complies with the Wireless Power Consortium (WPC) Qi v1.2 communication protocol, enabling a complete contactless power transfer system when paired with a primary-side controller like the BQ50012A. It features a low-resistance synchronous rectifier, a low-dropout regulator (LDO), digital control, and accurate voltage and current loops to ensure high efficiency and low power dissipation.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 20-Pin VQFN (RHL) |
| Operating Temperature Range | 0°C to 125°C |
| Maximum Input Voltage | 20 V |
| Output Power | Up to 5 W |
| Efficiency | 93% Overall Peak AC-DC Efficiency |
| Compliance | WPC Qi v1.2 |
| Rectifier Type | Full Synchronous Rectifier |
| Overvoltage Protection | 15 V (VOVP) |
| Thermal Shutdown | Yes |
Key Features
- Integrated Wireless Power Supply Receiver Solution
- Full Synchronous Rectifier
- WPC v1.2 Compliant Communication Control with Foreign Object Detection (FOD)
- Output Voltage Conditioning
- Dynamic Rectifier Control for Improved Load Transient Response
- Dynamic Efficiency Scaling for Optimized Performance Over a Wide Range of Output Power
- Adaptive Communication Limit for Robust Communication
- Low-Power Dissipative Rectifier Overvoltage Clamp (VOVP = 15 V)
- Thermal Shutdown
- Multifunction NTC and Control Pin for Temperature Monitoring, Charge Complete, and Fault Host Control
Applications
The BQ51013B is designed for use in portable applications requiring wireless power transfer, such as smartphones, tablets, wearables, and other mobile devices. It is particularly useful in scenarios where a compact, efficient, and safe wireless charging solution is necessary.
Q & A
- What is the BQ51013B device used for?
The BQ51013B is a wireless power receiver IC used for AC-to-DC power conversion and regulation in portable applications. - What is the maximum output power of the BQ51013B?
The BQ51013B can provide up to 5 W of output power. - Is the BQ51013B compliant with any wireless power standards?
Yes, it is compliant with the Wireless Power Consortium (WPC) Qi v1.2 communication protocol. - What type of rectifier does the BQ51013B use?
The BQ51013B uses a full synchronous rectifier. - Does the BQ51013B have overvoltage protection?
Yes, it has a low-power dissipative rectifier overvoltage clamp (VOVP = 15 V). - What is the operating temperature range of the BQ51013B?
The operating temperature range is from 0°C to 125°C. - Does the BQ51013B support foreign object detection?
Yes, it includes Foreign Object Detection (FOD) as part of the WPC v1.2 specification. - What is the package type of the BQ51013B?
The BQ51013B is available in a 20-Pin VQFN (RHL) package. - Does the BQ51013B have thermal shutdown protection?
Yes, it includes thermal shutdown protection. - What are some common applications for the BQ51013B?
Common applications include smartphones, tablets, wearables, and other mobile devices requiring wireless power transfer.
