Authentication solution for in-vehicle WPC Qi wireless charging

System-on-chip designed to secure wireless charging in cars

WPC Qi specification compliant

Enable wireless charging between WPC Qi (pronounced “chee”) specification compliant chargers and mobile devices for an enhanced end-user experience with secure authentication.

Highest level of security with authentication and cryptographic services

Implement two-step authentication: pairing with certificate attestation and public key infrastructure (PKI) authentication.

Automotive grade hardware

STSAFE-V100-Qi is based on automotive-grade hardware that is AEC-Q100 grade 2 qualified. The ST33K-A secure element is CC EAL6+ certified and supports temperatures up to 105°C.

Introducing the STSAFE-V100 family

ST offers a scalable portfolio of automotive-grade secure solutions, including the STSAFE-V100 family of dedicated solutions designed for the automotive ecosystem.

STSAFE-V100-Qi is a highly secure authentication solution specifically designed for in-vehicle wireless charging based on ST33K-A secure element hardware, certified CC EAL6+.

Key features

  • Turnkey System-on-Chip solution
  • AEC-Q100 Grade 2 qualified
  • HW CC EAL6+ certified
  • Two-step secure authentication
  • Secure end-to-end chain of trust

Additional ST security features

  • Secure storage capability
  • Secure boot
  • Software update

Recommended applications

Secure authentication
Wireless charging

How does secure authentication enhance Qi charging?

Secure authentication is necessary to attest that a mobile device and Qi-certified charger are compatible, unlock the extended power profile (EPP), and safely enable fast charging capability with up to 15W of power.

What is the extended power profile (EPP)?

The extended power profile is a new feature introduced in the WPC Qi V1.3 specification, enabling fast charging with up to 15W of power, well above the basic 5W limit of the baseline power profile (BPP).

What is the WPC?

The Wireless Power Consortium or WPC is an organization of more than 350 member companies committed to the worldwide compatibility of wireless chargers for a safer and more streamlined user experience. STMicroelectronics is a regular member of the WPC and provides solutions dedicated for wireless charging compliant with the latest WPC Qi specifications.

What does the WPC Qi V1.3 specification include?

The Qi V1.3 specification mandates the integration of hardware-based authentication to detect foreign objects and enable power transfer above 5W for devices with an extended power profile. Discover all the reasons why designers should integrate a Qi V1.3 compliant secure element in our whitepaper.

Why Qi charging is becoming more secure, convenient and effective

  • Learn how the WPC Qi V1.3 standard accommodates higher power level requirements with authentication services to protect connected cars and IoT devices
  • Understand challenges with NFC related to the Qi V1.3 specification
  • Discover ST’s high-performance authentication solutions for secure wireless charging

Hardware and software solutions for secure in-vehicle wireless charging

STSAFE-V100-Qi in UFQFPN32 package

Optimized STSAFE-V100-Qi System-on-Chip for automotive WPC Qi wireless device charging

Designed to secure wireless device charging in the automotive cabin, the STSAFE-V100-Qi authenticates genuine Qi-certified chargers to protect your devices during fast charging. This secure element is loaded with certificates signed by the WPC certificate authority in ST’s secure manufacturing sites and with additional security features to help protect against advanced forms of attacks.

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High-speed ST33K1M5A secure MCU with 32-bit Arm® Cortex®-M535P CPU

Designed for secure applications in the automotive environment, the ST33K1M5A includes specific security features to help protect against advanced forms of attacks. It offers car makers the highest level of security (CC EAL6+ certified), and the best level of reliability required for automotive solutions (AEC-Q100 Grade 2 qualified).

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ST33K1M5A in TSSOP20 package
ST25R3920B NFC reader in UFQFPN32 package

High-performance ST25R3920B NFC reader for automotive wireless device charging applications

An AEC-Q100 qualified solution for wireless charging applications in center consoles, the ST25R3920B enables a seamless user experience while providing additional functions including pairing or NFC card protection combined with a Qi charger. Very robust and noise tolerant while at the same time reducing electromagnetic emissions, the device comes with a full development ecosystem for fast design cycles and easier CR13 NFC Forum certification.

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Discover STSECURE hardware and system-on-chip solutions for connected cars

  • automotive-grade secure elements
  • authentication services
  • digital key systems
  • trusted platform module
  • secure network connectivity
Learn more