Features
- Power transfer up to 30W in proprietary mode and 15W at the receiver side in EPP mode
- Real-time foreign object detection (FOD)
- Wide input voltage range: 5V to 19V
- Supports various types of wall adapters
- WPC-1.2.4 compatible
- Integrated drivers for external power MOSFETs
- Embedded 32-bit Arm Cortex-M0 processor
- Simultaneous voltage and current demodulation scheme for WPC communication
- Integrated current sense amplifier
- Low standby power
- Active-LOW Enable pin for electrical on/off
- Overcurrent and over-temperature protection
- Supports I²C interface
- -40 °C to +85 °C ambient operating temperature range
- 48-VFQFPN (6mm x 6mm) RoHS-compliant package
Description
The P9247 is a highly integrated, magnetic induction, wireless power transmitter that supports up to 15W in compliance with the WPC-1.2.4 specification and 30W in proprietary applications. The device is compatible with all popular wireless charging protocols including the WPC Baseline Power Profile (BPP), Extended Power Profile (EPP), up to 7.5W charging for iPhones, and Android proprietary fast charging modes. This system-on-chip solution (SoC) operates with an input voltage range of 5V to 19V and supports various types of wall adapters.
The P9247 includes an industry-leading 32-bit Arm® Cortex®-M0 processor, offering a high level of programmability and extremely low standby power consumption. The P9247 generates power through the power coil, detects the presence of a wireless power receiver, decodes the communication packets from the receiver, and adjusts the transmitted power by controlling the voltage based on feedback from the receiver. The transmitter also features a wide range of system protections, such as overcurrent, overvoltage, undervoltage lockout, and real-time foreign object detection (FOD), ensuring maximum utility and safety for customers. The transmitter also allows for power adjustment via frequency, duty-cycle, and/or bridge voltage adjustment, and offers a significant margin to EMI requirements in all regions of the world.
The P9247 is available in a lead-free, space-saving 48-VFQFPN package. The product is rated for a -40 °C to +85 °C operating temperature range.
For information regarding evaluation boards and material, contact your local Renesas sales representative.
Applications
- BPP and EPP wireless charging pads
- Up to 7.5W charging for iPhones
- Android fast charging pads
- Cradles
- Tablets
- After-market automotive wireless charging pads
| Part Number | Status | Samples | Stock | Package | Lead Count (#) | Temp. Grade | Pb (Lead) Free | Carrier Type |
|---|---|---|---|---|---|---|---|---|
| P9247-0NDGI | Obsolete | N/A | Out of Stock | VFQFPN | 48# | I | Yes | Tray |
| P9247-0NDGI8 | Obsolete | N/A | Out of Stock | VFQFPN | 48# | I | Yes | Reel |
Filters
Applied Filters
- End Of Life NoticePDF 1.11 MB Aug 01, 2023
- Product Change NoticePDF 734 KB Nov 16, 2022
- Product Change NoticePDF 728 KB May 13, 2022
- Application Note
- White PaperPDF 627 KB 7WDXRDKU4E7E-5-61641 May 10, 2017Wireless power transfer uses an air-core transformer with separate transmitter and receiver coils, making accurate performance modeling difficult due to low magnetic coupling and increased losses. This paper addresses simulation challenges and describes methods to approximate circuit behavior. It demonstrates best practices for tuning Qi and PMA inductive resonance circuits to maximize charging efficiency for mobile devices.
Recommended Documents (1)
Datasheets (1)
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- Application Note
- White PaperPDF 627 KB 7WDXRDKU4E7E-5-61641 May 10, 2017Wireless power transfer uses an air-core transformer with separate transmitter and receiver coils, making accurate performance modeling difficult due to low magnetic coupling and increased losses. This paper addresses simulation challenges and describes methods to approximate circuit behavior. It demonstrates best practices for tuning Qi and PMA inductive resonance circuits to maximize charging efficiency for mobile devices.
Application Notes & White Papers (2)
- End Of Life NoticePDF 1.11 MB Aug 01, 2023
- Product Change NoticePDF 734 KB Nov 16, 2022
- Product Change NoticePDF 728 KB May 13, 2022
Product Notices (PCN, EOL, etc) (3)
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