Features
- Allows harvesting up to 1W on the NFC WLC Listener
- No EMC filter requirement due to sine wave output driver and Direct Antenna Connection (DiRAC)
- Automated power control loop for system efficiency optimization
- Output power regulation with 1% step
- NFC Forum WLC Poller functionalities
- NFC data exchange
- Impedance change detection for foreign object detection (FOD)
- On-chip processing of time critical commands
Description
The PTX130W is a powerful and efficient NFC transmitter system-on-chip (SoC) for NFC wireless charging applications alongside data communication. PTX130W features improved key performance parameters such as output power and Rx sensitivity (-80dBc ). While eliminating EMC filter and matching components the PTX130W enables simple integration and compact design without the complexity associated with existing solutions (dual resonating circuits composed by EMC filter and antenna). The superior RF performance of PTX130W enables small antenna design, fast charging, and allows flexible placement of Poller and Listener antennas.
Parameters
| Attributes | Value |
|---|---|
| Device Functions | WLC Poller |
| Wireless Standard | NFC Forum Reader/Writer, Wireless charging protocol based on NFC Forum Wireless Charging Technical Specification Version 2.1 |
| Protocol | NFC Forum Reader/Writer, Wireless charging protocol based on NFC Forum Wireless Charging Technical Specification Version 2.0 |
| Comm. Interface | SPI |
| Software Support | NON-OS SDK |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| VFQFPN | 7.0 x 7.0 x 0.75 | 56 | 0.4 |
Application Block Diagrams
 | Humanoid Battery Management System Integrated humanoid robot BMS enabling safe, real-time power management, protection, and battery-state control. |
 | Electric Toothbrush with UV Sanitation An electric toothbrush with UV sanitization and NFC brush authentication. |
 | Smart BBQ Thermometer Smart BBQ thermometer offers real-time temperature monitoring and wireless connectivity for safer, perfectly cooked meals. |
 | Universal NFC Wireless Charger This NFC charger enables the wireless charging of small battery-powered devices ensuring compatibility and user convenience. |
Additional Applications
- Smart rings
- Smart glasses
- Fitness trackers
- Smart watches
- Medical devices
- Headsets
Complete Your Design
Explore complementary products to elevate your design
Renesas Boards & Kits
PTX130W/30W NFC Wireless Charging (WLC) Evaluation Kit
The PTX130W-30W-EVK wireless charging (WLC) evaluation kit combines the high-efficiency, high-power PTX130W NFC WLC IC with the PTX30W fully integrated, high-power harvesting WLC listener IC. Users are able to cut development time and effort with increased flexibility for NFC wireless charging... Read More
Support Communities
-
Ptx130w Evaluation board Overtemperature detected
I've been using the PTX130W-EB-ST-QFN56-POLLER v1.1Ren board to test nfc charging. The evalution kit typically performs as expected, but recently It started giving an "Overtemperature detected, charging has been aborted" error when trying to activate poller on the PTX130W-N/PTX30W-N Config ...
Oct 18, 2025 -
NFC PTX130W&PTX30W Document and SDK Request Access
Our research group purchased some 1.0 versions of the PTX30W and PTX130W before Panthronic was acquired by Renesas, and we recently purchased new versions of the PTX30W&PTX130W on mouser. However, on the website of Renesas, I need to apply for access to this part of data. Up ...
Sep 17, 2024 -
Fallowing the PTX130W/PTX30W Hardware Integration manual, how is the QucsStudio template used?
I have added all the input parameters to the template (that I got from VNA) and by fallowing the instruction on the template/manual I don't get the optimization to start.
Jul 10, 2025
Knowledge Base
-
I2C communication with NFC device fails
It is recommended to run a smoke-test to ensure that the I2C interface is working without actually using the SDK code itself. For that purpose following Python code examples can be either used directly, or re-implemented for the target system. Get yourself familiar with I2C first (refer to ...
Oct 1, 2025 -
Communication via SPI interface fails (no MISO response)
Last Updated: 10/01/2025 Question: A PTX1xxR or a PTX130W device (NFC device) has been connected via SPI to a custom MCU and SDK initialization fails. It is unclear if an incorrect implementation of the SPI HAL in the SDK causes the issue or if the SPI ...
Oct 1, 2025
Support Communities
