Provisioning OPTIGA Trust Charge for Wireless Charging (WLC) Transmitters
Guide for provisioning OPTIGA Trust Charge in Qi 1.3.x wireless charging transmitters using WLC1115 and WLC1150 controllers to ensure security and WPC compliance.
Overview
This application note describes the implementation and provisioning of the OPTIGA Trust Charge security solution within wireless charging (WLC) transmitter systems. It details how the OPTIGA Trust Charge facilitates Qi 1.3.x authentication, which is required for Extended Power Profile (EPP) power delivery exceeding 5W. The document outlines system architectures using WLC1115 and WLC1150 controllers connected via I2C, Public Key Infrastructure (PKI) requirements, and the use of X.509 v3 certificates with ECDSA NIST P-256 and SHA-256 algorithms. It further provides a step-by-step workflow for manufacturers to obtain WPC-compliant certificate chains and register Qi-IDs through Infineon’s Manufacturer Certificate Service Provider (MCSP).
Use Cases
- Qi-certified wireless charging pad manufacturing
- Secure identity authentication for EPP wireless transmitters
- Automotive wireless charging systems
- Provisioning security certificates for WLC reference designs
Topics
Referenced Parts
WLC1115-68LQXQ/T
Infineon
Figure 1 基于 WLC1115 的 WLC 发射端系统设计 ... WLC1115-68LQXQ/T
WLC1115
Infineon
Table 2 WLC 发射端参考设计 # 1 WLC 芯片 MPN WLC1115
WLC1150
Infineon
Table 2 WLC 发射端参考设计 # 2 WLC 芯片 MPN WLC1150
OPTIGA Trust Charge
Infineon
通过 I2C 总线将 OPTIGA™ Trust Charge 与 WLC 发射端系统处理器连接
| WLC1150-68LQXQ/T | Infineon | Figure 2 基于 WLC1150 的 WLC 发射端系统设计 ... WLC1150-68LQXQ/T |
| WLC1115-68LQXQ/T | Infineon | Figure 1 基于 WLC1115 的 WLC 发射端系统设计 ... WLC1115-68LQXQ/T |
| WLC1115 | Infineon | Table 2 WLC 发射端参考设计 # 1 WLC 芯片 MPN WLC1115 |
| WLC1150 | Infineon | Table 2 WLC 发射端参考设计 # 2 WLC 芯片 MPN WLC1150 |
| OPTIGA Trust Charge | Infineon | 通过 I2C 总线将 OPTIGA™ Trust Charge 与 WLC 发射端系统处理器连接 |