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INTEGRATED WIRELESS POWER SUPPLY TRANSMITTER,
Qi (WIRELESS POWER CONSORTIUM) COMPLIANT
- Evaluation Board User's Guide (A11 type) -
FEATURES
Integrated wireless power transmitter controller
WPC Ver. 1.1 ready
MCU embedded
Half-bridge gate driver ： 4ch
(full-bridge gate driver ： 2ch also configurable)
Single-coil (Type A11) supported
Expanded free positioning using multi-coils up to 4 coils
(Type A6)
Highly accurate voltage and current monitor for inverters
Output controlled by frequency or duty, defined in Qi.
ASK demodulation for both current and voltage signals
(Qi compliant)
Input voltage range : VADP, VINV : 4.6 to 19.5V
Supports Under Voltage Lockout , Thermal Shutdown,
Over Current Detection
Short-circuit protection at inverter output
Temperature Detecting Circuit ： 3ch
LED indicator ： 2ch
package ： 64 pins HQFP
(size : 12mm 12mm)
Wireless Power System
VIN
NN32251A
Transmitter (Tx)
Wireless Power
Cp
Cs
Cd
TX
RX
Coil
Coil
Communication
http://www.semicon.panasonic.co.jp/en/
DESCRIPTION
NN32251A is a wireless power system controller IC
which is compliant with Qi version 1.1 of the System
Description Wireless Power Transfer, Volume 1 for Low
Power, defined by Wireless Power Consortium.
NN32251A is a controller IC of a power transmitter (Tx)
which can supply power to any Qi-compliant wireless
chargers.
APPLICATIONS
・WPC-compliant wireless charger
IMPORTANT
NN32251A is designed to be used based on
the circuits and external components described
in this document .
Therefore, Panasonic cannot support any inquiries of
modified solution.
OUT
VRECT
AN32258A
Control
IC
Receiver (Rx)
Evaluation Board User's Guide
NN32251A
IOUT
Charger
Co
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Summary of Contents for Panasonic NN32251A
- Page 1 Half-bridge gate driver ： 4ch Power, defined by Wireless Power Consortium. (full-bridge gate driver ： 2ch also configurable) NN32251A is a controller IC of a power transmitter (Tx) Single-coil (Type A11) supported which can supply power to any Qi-compliant wireless ...
- Page 2 Evaluation Board User’s Guide NN32251A EVB (for Qi Type A11) Information 1. EVB Circuit Diagram R73 0 LDO33V LDO41V1 R7 R14 LDO41V TH3A R72 0 LDO33V VREF R11 R16 TH2A LED2 R71 0 LDO33V R13 R18 LED1 TH1A LDO18V LDO33V...
- Page 3 Evaluation Board User’s Guide NN32251A EVB (for Qi Type A11) Information (Continued) 2. Bill of Materials T(max) Size Category Parts No. Name Value Rating Manufacture (JIS or PKG) NN32251A Panasonic 12.0 x 12.0 Coil CEBO-RA2D22A CHEMTRONICS C18,C28, C4532C0G2E104J320KN 0.1uF 250V 4.5 x 3.2...
- Page 4 Evaluation Board User’s Guide NN32251A EVB (for Qi Type A11) Information (Continued) 3. EVB Layout 3-1. Evaluation Board EVB Photo (Top) EVB Photo (Bottom) EVB Top Assembly EVB Bottom Assembly 3-2. Specification of EVB Category Specification 60.0 mm × 60.0 mm...
- Page 5 Evaluation Board User’s Guide NN32251A EVB (for Qi Type A11) Information (Continued) 4. The Whole Picture 5V Input Page 5 of 7...
- Page 6 Evaluation Board User’s Guide NN32251A EVB (for Qi Type A11) Information (Continued) 5. LED Display - Combination of LED display can be adjusted by pins SELLED1(No.4) and SELLED2(No.6) as the next table shows. Both pins are connected to GND on this board.
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Page 7: Important Notice
Evaluation Board User’s Guide NN32251A IMPORTANT NOTICE 1. When using the IC for new models, verify the safety including the long-term reliability for each product. 2. When the application system is designed by using this IC, please confirm the notes in this book. - Page 8 (2) The technical information described in this book is intended only to show the main characteristics and application circuit examples of the products. No license is granted in and to any intellectual property right or other right owned by Panasonic Corporation or any other company.
- Page 9 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Panasonic NN32251A-EVB-0...