GUI for evaluation module (EVM)
Data sheet
BQ51221
- Robust 5-W Solution With 50% Lower Losses
for Improved Thermals- Inductorless Receiver for Lowest Height
Profile Solution - Adjustable Output Voltage (4.5 to 8 V) for
Coil and Thermal Optimization - Fully Synchronous Rectifier With 96%
Efficiency - 97% Efficient Post Regulator
- 79% System Efficiency at 5 W
- Inductorless Receiver for Lowest Height
- WPC v1.1 and PMA Compliant Communication
- Patented Transmitter Pad Detect Function
Improves User Experience - I2C Communication with Host
The bq51221 device is a fully contained wireless power receiver capable of operating in both the WPC and PMA protocols which allows a wireless power system to work with both WPC and PMA inductive charging standards. The bq51221 device provides a single device power conversion (rectification and regulation) as well as the digital control and communication for both standards. It also has autonomous detection of protocol and requires no additional active devices. The bq51221 device complies with the WPC v1.1 and PMA communication protocol. Together with the WPC or a PMA primary-side controller, the bq51221 device enables a complete wireless power transfer system for a wireless power supply solution. The receiver allows for synchronous rectification, regulation and control and communication to all exist in a market-leading form factor, efficiency, and solution size.
Technical documentation
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View all 4 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | bq51221 Dual Mode 5-W (WPC and PMA) Single Chip Wireless Power Receiver datasheet (Rev. A) | PDF | HTML | 11 Jul 2014 |
| Application note | Test and Troubleshoot a Wireless Power Receiver | 06 Aug 2014 | ||
| EVM User's guide | Dual Mode (WPC and PMA) Integrated Wireless Receiver Power Supply (Rev. B) | 05 Jun 2014 | ||
| Application note | Layout Guidelines for Wireless Power Receiver (Generation 3 | 28 Mar 2014 |
Design & development
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Calculation tool
SLUC577 — Foreign Object Detection (FOD) Calibration/Tuning Tool
Supported products & hardware
Products
Battery charger ICs
Reference designs
TIDA-00243 — Miniature Dual Mode Wireless Receiver
This board is a SFF (Small Form Factor) complete miniature wireless receiver solution. The output is 5Vdc @1A and you can use it to power, or charge your battery operated device using any industry standard WPC or PMA compliant transmitter.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| DSBGA (YFP) | 42 | Ultra Librarian |
Ordering & quality
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