1. Products
  2. Power Management
  3. Battery Management
  4. Wireless Power Transfer
  5. MAX77950


Features and Benefits

  • WPC/PMA Dual Mode Wireless Power Receiver
  • Compliant with WPC Low Power (v1.2) and PMA SR1 (v2.0)
  • Peer-to-Peer Power Transmission with In-Band ASK Communications
  • WPC ASK Demodulator/FSK Demodulator
  • Output Programmable Range from 3.5V to 12.7V with 100mV Step
  • Integrated High-Efficiency n-Channel Full-Bridge Synchronous Rectifier
  • Programmable Foreign Object Detection
  • Programmable Dynamic Rectifier-Voltage Scaling
  • Overvoltage, Overcurrent, and Overtemperature Protection

Product Details

The MAX77950 is an advanced wireless power receiver IC that meets the specification requirements for WPC low-power (v1.2) and PMA SR1 (v2.0) communication protocols. This device operates using near-field magnetic induction when coupled with a WPC or PMA transmitter and provides output power up to 12 watts.

The IC has precision output current and voltage-sensing scheme over the entire load range. It enables accurate received power packets, as defined in the WPC specifications for best foreign object detection (FOD). The IC supports FSK demodulation to receive PMA advertisement ID as well as WPC FSK packets.

The IC features the patent-pending PeerPower™ function. In PeerPower mode, the IC operates as a transmitter, enabling power transfer to another peer device through in-band ASK communications.

The MAX77950 communicates with an application processor through an I2C serial interface. The status of power transfer and alerts are read through this interface.

Design Solution: Let Your Smartphone Power Your Smartwatch Wirelessly ›


  • Battery-Power Banks
  • Digital Cameras
  • Handheld Devices
  • Headsets
  • Point-of-Sale Devices
  • Portable Media Players
  • Portable Medical Applications
  • Smart Watches
  • Smartphones
  • Tablets
  • Wearable Devices
  • Wi-Fi Hotspots

Product Lifecycle icon-not-recommended Not Recommended for New Designs

This designates products ADI does not recommend broadly for new designs.

Evaluation Kits (1)

Tools & Simulations

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
MAX77950EWW+ Material Declaration Reliability Data 54-WLCSP-N/A
MAX77950EWW+T Material Declaration Reliability Data 54-WLCSP-N/A
Wafer Fabrication Data MAX77950 Reliability Data

Sample & Buy

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.