company blog about Supply Renesas NFC Product:NFC Readers,NFC Wireless Charging

Supply Renesas NFC Product:NFC Readers,NFC Wireless Charging

Shenzhen Mingjiada Electronics Co., Ltd. is a renowned distributor of electronic components. With many years of experience in the electronic components sector, we maintain a long-term supply of genuine, in-stock products across a wide range of electronic items. Upholding the principle of ‘serving our customers and passing on benefits to them’, we provide our customers with high-quality and diverse electronic components.

[Advantages of Our Supply Service]

1. Genuine, in-stock inventory

We maintain a constant stock of chips across various series, sourced directly from original manufacturers. All products are 100% genuine, accompanied by original factory quality inspection documentation, ensuring no refurbished or loose new components are supplied.

2. Flexible procurement models

We support requests for small-batch engineering samples and offer express dispatch for R&D prototyping; for large-volume mass production orders, we provide long-term price locks and stable production scheduling to meet the diverse procurement needs of both small and medium-sized manufacturers and large-scale production enterprises.

3. Comprehensive Logistics and After-Sales Support

Same-day dispatch from our Shenzhen headquarters; rapid cross-border delivery from our Hong Kong warehouse; end-to-end quality assurance with swift returns and replacements in the event of quality issues; supported by long-term supply and stock planning to ensure uninterrupted production lines.

I. Renesas NFC Reader Series in Stock (PTX100R/PTX105R – Main Models)

1. Core Products and Performance Advantages

PTX100R High-Power Multi-Protocol NFC Reader Chip

Designed for high-power applications such as POS terminals, mobile payments, smart access control and industrial asset identification, with a maximum output power of 2W@5.5V and a reception sensitivity of up to -80dBc; utilises a pure sine-wave transmission architecture, eliminating the need for external EMC filtering and matching circuits, thereby significantly reducing the overall BOM cost; Fully compatible with the EMVCo 3.1 payment standard and all NFC Forum protocols, it supports high-speed recognition of multiple card types and electronic tags. The oscillator-free design simplifies hardware layout and is suitable for desktop POS terminals, self-service vending machines and access control turnstiles in campus environments.

PTX105R Compact Medium-Power NFC Reader

Designed for compact products such as lightweight IoT devices, portable handheld terminals, printer identity verification and smart meters, with an output power of 1W@5V; features DiRAC direct-connect antenna technology for enhanced coupling stability; It features a built-in hardware-accelerated, decoupled protocol stack that alleviates the computational load on the host MCU, thereby shortening the software development cycle; it is fully compatible with the Renesas RA series MCU ecosystem, and, when used with official evaluation boards and Pmod expansion modules, enables rapid product prototyping, making it suitable for mass production in consumer electronics and small-scale industrial equipment.

2. Key Features of Renesas’ Universal NFC Reader Core

Extended supply cycle: The manufacturer guarantees a stable 15-year lifecycle, meeting the long-term mass production requirements of industrial and automotive equipment;

Highly interference-resistant RF performance, ensuring stable card reading and recognition even within metal enclosures or in humid environments;

Integrated multi-channel GPIO and standard SPI communication interfaces, compatible with the vast majority of host control platforms;

Supports card anti-collision and encrypted identity verification, ensuring secure data transmission for payments and access control.

3. Mainstream Application Scenarios

Offline POS/MPOS terminals, NFC access control panels in hotel lifts, smart ID badge recognition in industrial facilities, asset tracking for industrial equipment, card-swiping modules for self-service terminals, in-vehicle NFC key recognition, and identity verification for smart door locks.

II. Renesas NFC Wireless Charging Complete Solution (Transmitter PTX130W + Receiver PTX30W)

1. Core Products and Performance Advantages

PTX130W NFC Wireless Charging Transmitter Chip (Poller)

Complies with the NFC Forum WLC 2.0 wireless charging specification; combines reader and transmitter functions in a single chip, enabling both card recognition and wireless power delivery; Supports compact antenna design with high tolerance for antenna misalignment, eliminating the need for precise positioning of the device; features a compact VFQFPN package with a built-in precise power negotiation mechanism that intelligently adjusts output power, ensuring safe and controllable charging. Suitable for transmitter devices such as charging docks, stylus charging cases, hearing aid storage cases and smart ring charging stands.

PTX30W Single-Chip Integrated NFC Wireless Charging Receiver (Listener-side, industry benchmark)

The world’s first highly integrated, all-in-one NFC wireless charging receiver IC, combining four key functions—NFC tag, RF energy harvesting circuit, lithium-ion battery charging path, and 1.8V/3.3V LDO voltage regulator—into a single chip, significantly reducing the number of external components; It delivers up to 1W of RF energy harvesting power, with an adjustable charging current of 5mA–250mA, and supports bidirectional data transmission, enabling device authentication and parameter read/write operations whilst charging; its compact package makes it perfectly suited to micro-devices with extremely limited internal space.

2. Key Advantages of the NFC Wireless Charging Solution

Extreme miniaturisation: Maximum single-chip integration eliminates the need for numerous external resistors and capacitors, making it suitable for micro-wearable medical products such as smart rings, hearing aids, fitness trackers, active styluses and portable blood glucose monitors;

Combined charging and communication: NFC authentication, device pairing and firmware interaction are completed simultaneously during the charging process, eliminating the need for additional communication modules;

High-tolerance charging: Stable energy harvesting and charging even with antenna misalignment or obstruction by slim enclosures, offering greater design flexibility for the overall device;

Safe charging management: Built-in overcurrent, overvoltage and overheat protection, with standardised lithium battery charging curves, compatible with various small pouch-type lithium batteries.

3. Typical wireless charging applications

Smart wearables (smart rings, Bluetooth earphone charging cases, smart glasses), portable medical devices (hearing aids, continuous glucose monitors, nebuliser pens), digital accessories (active styluses for tablets), small industrial passive sensor tags, and portable home beauty devices.