AC EV charging
Optimized and efficient control, connectivity, security, sensing, and power ICs
As EV adoption grows, AC chargers must balance efficiency, cost, and ease of use in EV charging experiences. On top of this, integrating IoT with high-voltage systems demands reliable connectivity, secure data processing, and storage. Utilize our comprehensive portfolio of connectivity, control, sensing, power, and security solutions to create efficient, reliable, and secure AC EV charger systems
System diagram: AC EV charging
Semiconductor solutions for control in AC EV chargers
Smart charging heavily impacts control design requirements such as higher processing power, increased memory, integration of security features, needed support for wired or wireless communication, and driving HMI.
PSOC™ 62xA/62x8 microcontrollers offer a mix of performance, security, and peripheral integration features that can be efficiently utilized in AC EV charging stations and wallboxes. These microcontrollers are designed to deliver high performance at low power consumption. The family features dual-core architecture, allowing for efficient task distribution and optimized performance. Built on a 40nm platform with multiple power modules, PSOC™ 62xA/62x8 microcontrollers support various run time configurable power modes as well as ultra low power consumption. The rich peripheral set, including 12-bit SAR ADCs, low-power comparators, timers, PWM modules, and multiple serial communication interfaces (I2C, SPI, UART), provides flexibility in AC EV charging designs.
For development and prototyping, we offer evaluation kits to speed up your prototyping times. Check out CY8CKIT-062S2-AI and CY8CEVAL-062S2.
Explore PSOC™ 62xA, 62x8 microcontrollers
Try PSOC™ 6 Artificial Intelligence Evaluation Kit
Semiconductor solutions for control in AC EV chargers
Functionalities such as back-office connection, firmware OTA updates, Matter support, smart home integration and real-time, secure monitoring require dual-band Wi-Fi connectivity with extended range, superb RF performance and integrated WPA3 security and network diagnostics.
The AIROC™ family delivers powerful Wi-Fi solutions for AC EV chargers and offers reliable, long-range performance and robust connection at low power consumption. AIROC™ Wi-Fi SoCs include on-chip microcontrollers, memory, and the networking protocols required for customers to easily create their own cloud-connected applications. The portfolio integrates IEEE 802.11a/b/g/n/ac/ax Wi-Fi and Bluetooth® 5.4 in a single-chip solution to enable small-form-factor IoT designs.
Combo, standalone Wi-Fi, and Wi-Fi SoCs with embedded MCU and on-chip networking capabilities are offered in 1x1 SISO and 2x2 MIMO configurations with the dual-band Wi-Fi range of 2.4 and 5 GHz. We also offer Dual-Band ePA/eLNA reference designs for increased range. The devices can be combined with Infineon or third-party microcontrollers or with Linux-based microprocessors. To get started, download ModusToolbox™ or use our Linux drivers.
Semiconductor solutions for current sensing in AC EV charging
XENSIV™ coreless current sensors ensure high-precision, rapid response, and high-reliability current sensing in AC EV charging systems. With Infineon's robust coreless Hall technology and AEC-Q100 Grade 1 automotive qualification, XENSIV™ TLE4971 devices are ideal for use in safety-critical and high-performance systems. The TLE4971 has an accurate and highly linear measurement of currents with a full scale up to ±120 A throughout the charging process. That makes it suitable for most Level 2 AC EV charging stations.
The devices are available in TISON-8-6 (8x8x1mm) and DSO-16 (10.3x10.3x2.65 mm) packages, facilitating easy integration into compact designs. With two fast overcurrent detection pins that can be configured to the specific thresholds, you can ensure rapid response to overcurrent events and protection of sensitive components. The TLE4971 devices also offer high voltage protection and reduce power consumption by up to 50%.
Browse our current sensing evaluation boards to see for yourself.
Semiconductor solutions for auxiliary power supply in AC EV Charging
Infineon offers a comprehensive portfolio of power management solutions suited for auxiliary power supplies in AC EV charging, offering high efficiency, reliability, safety and scalability for different power requirements and grid environments. The 5th generation CoolSET™ family includes a range of integrated power management ICs for high-efficiency AC-DC converters. The devices combine high-voltage MOSFETs (700 V, 800 V or 950 V) with control circuitry, reducing overall energy losses and increasing efficiency. A high integration of features such as input overvoltage, brownout, and overpower protection, reduces component count and the associated cost.
Based on your system design, you can choose among fixed-frequency or quasi-resonant switching schemes as well as different topologies e.g., AC-DC flyback, DC-DC flyback, or HV-buck, isolated and non-isolated. With this, we ensure that the requirements are met for efficiency, reliability, and cost of the power supply over a wide range of operating conditions. The devices also allow up to 40 W power supplies at 70°C ambient temperature thanks to the low RDS(on) products down to 680 mOhm in the integrated package.
Try PowerEsim Switched Mode Power Supply Design Tool
Explore CoolSET™ AC-DC integrated power stages
Memory solutions for AC EV charging designs
Our series of Quad SPI NOR Flash memory solutions offer high performance, data security, and reliability features essential for long-term operation of AC EV charger designs. Built on Infineon’s proprietary MIRRORBIT™ technology, the products store two bits per cell, making them optimal for high density devices. The Quad SPI NOR Flash memory products support clock rates up to 133 MHz in SDR and up to 80 MHz in DDR mode, delivering bandwidth up to 80 Mbps. The devices feature execute-in-place (XiP) functionality, allowing code execution directly from the flash memory and hence reducing boot times and system costs.
Data integrity and protection against unauthorized access is ensured by the built-in advanced sector protection and error protection code features. The devices are also available with AEC-Q100 qualification for temperatures up to +125°C and available in a wide range of densities and low-pin-count package options. These features combined ensure that charger firmware is efficiently stored, boot times are lower, and operation is reliable. Over-the-air (OTA) updates are also supported, allowing charging stations to stay up to date with the latest features and security patches.
Explore Quad SPI NOR Flash memories
See highlight product: S25FL064LABMFI010
Semiconductor solutions for security in AC EV charging
OPTIGA™ Trust M and OPTIGA™ TPM security solutions enable highly secure systems, featuring product families designed for easy integration into embedded systems to protect the confidentiality, integrity, and authenticity of information and devices.
OPTIGA™ TPM (Trusted Platform Module) offers a broad portfolio of standardized security controllers to protect the integrity and authenticity of embedded devices and systems. With a secured key store and support for a variety of encryption algorithms, OPTIGA™ TPM security chips provide robust protection for critical data and processes through their rich functionality.
OPTIGA™ Trust M offers a full range of security chips to address individual needs in the field of embedded authentication and brand protection and further security applications, be it turnkey products for smaller platforms or programmable solutions.
