Analog Devices / Maxim Integrated MAX77950 WPC/PMA Dual Mode Wireless Power Receiver
Analog Devices MAX77950 WPC/PMA Dual Mode Wireless Power Receiver operates using near-field magnetic induction when combined with a WPC or PMA transmitter. The MAX77950 is compliant with WPC low-power (v1.2) and PMA SR1 (v2.0) communication protocols. With every 100mV step, the MAX77950 has an output programmable range of 3.5V to 12.7V. Over the entire load range, the Wireless Power Receiver has a precision output current and a voltage-sensing scheme. The I2C serial interface transmits the status of power transfer and alerts, allowing the MAX77950 to communicate with an application processor. Another feature of Analog Devices MAX77950 is PeerPower™ mode, which enables power transfer to another peer device through in-band ASK communications.
Features
- WPC/PMA Dual Mode Wireless Power Receiver
- Compliant with WPC Low Power (v1.2) and PMASR1 (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
Applications
- Smartphones
- Tablets
- Smart Watches
- Headsets
- Wearable Devices
- Battery-Power Banks
- Wi-Fi Hotspots
- Digital Cameras
- Portable Medical Applications
- Portable Media Players
- Point-of-Sale Devices
- Handheld Devices
MAX77950 Receiver Block Diagram
MAX77950 Operating Characteristics @25°C
Associated Tool
Analog Devices / Maxim Integrated MAX77950EVKIT Evaluation Kit
Provides 12W of output power, and uses multiple test points to measure the output voltage.
Paskelbta: 2017-09-20
| Atnaujinta: 2023-04-14