Accelerate on-board charging with Infineon’s semiconductors

On-Board Charger; what is an on-board charger? — Infineon on-board charger

The on-board charger (OBC) – also known as an on-board battery charger – re-charges the high-voltage battery in a plug-in hybrid electric vehicle (PHEV) or a battery-powered electric vehicle (EV) directly from the grid while the car is parked and connected to a charging station/pile.

Typically, the power flow from the grid to the battery is unidirectional, but there are cases where bidirectionality is required (battery to load or battery to grid).

Main harbor charging

Where: at home or at the office
How often: everyday
How long: more than 3h
Main harbour charging is a must for battery electric vehicles (BEV) and plug-in hybrid electric vehicles (PHEV)

Destination charging

Where: supermarket, cinema, restraurant, etc.
How often: once-twice a week
How long: less than 3h
Destination charging is nice to have for BEV and PHEV

Range extension charging

Where: highway, travel routes
How often: depending on driver
How long: less than 30min
Range extension charging is a must for BEV

Main harbor charging at home or at the office is the key use case for OBCs. Most EVs are charged slowly overnight at the driver’s home using a convenient power outlet in a garage or similar. Charging at home has the advantage of extending the battery life and availing of off-peak grid prices.

Other OBC use cases

Click here to find out how Infineon is enabling modern OBC designs.

Explore the market’s broadest semiconductor portfolio for on-board chargers

Power Devices

Automotive CoolSiC™ MOSFETs - NEW

Infineon’s new automotive CoolSiC™ 1200 V MOSFETs (e.g. AIMW120R045M1) are high-voltage semiconductors perfect for power conversion in OBC 3-phase designs and auxiliary 800 V or high-power systems. Based on 110 µm thin wafer technology and a very robust gate oxide design, they generate very low electrical losses while providing the highest humidity and corrosion robustness for automotive applications.

Visit Product Page

Automotive CoolSiC™ 650V Schottky Diodes - NEW

Automotive CoolSiC™ 650 V Schottky diodes from Infineon are high-voltage semiconductors ideally suited to the PFC stage in OBC and auxiliary systems. The new AIDK08S65C5 and AIDW40S65C5 devices build the highest humidity and corrosion robustness into automotive designs, while also offering superior efficiency across all load conditions.

Visit Product Page

Automotive CoolMOS™ MOSFETs - NEW

Infineon CoolMOS™ CPA, CFDA and C3A high-voltage semiconductors are widely deployed in today’s OBC designs. The new CoolMOS™ CFD7A SJ MOSFET family with its fast body diode takes electric vehicle efficiency and reliability to the next level. It is suited to the OBC and to HV-LV DC-DC converters.

Visit Product Page

Automotive OptiMOS™ 40 V , 80 V and 100 V MOSFETs for Main Inverters, also known as Starter Generators, 12 V and 48 V Battery Main Switches and also On-Board Chargers - NEW

Infineon’s Automotive OptiMOS™ Portfolio is offering lowest RDS(on) MOSFETs at different voltage levels to suit the application specific requirements. Next to fast switching, the gate thresholds are optimized for paralleling. Additionally the MOSFETs are offered in a broad variety of package variants. The new 40V IAUS300N04S4N007 and the 80V IAUS300N08S5N012 are just a tiny extract of the overall suitable MOSFETs on offer for xEV applications.

Visit Product Page

TRENCHSTOP™ 5 AUTO IGBT Technology

Infineon’s TRENCHSTOP™ 5 AUTO IGBT technology (e.g. AIKW40N65DH5) redefines “best-in-class” IGBT performance by providing unmatched efficiency for hard-switching applications.

Visit Product Page

EasyPACK™ 1B module with fast TRENCHSTOP™ IGBT3, Rapid 1 diode and PressFIT pins for easy manufacturing

EasyPACK™ 1B modules (e.g. F4-75R07W1H3 _B11A and F4-50R07W1H3_B11A) from Infineon bring a number of key benefits to automotive power applications. Highlights include easy mounting, PressFIT technology, reliable isolation (against creepage), seamless traceability, NTC for temperature sensing, low stray inductance (at module and system level) and a common platform for different topologies.

Visit Product Page

Drivers

EiceDRIVER™ galvanically isolated dual-channel IGBT driver IC

EiceDRIVER™ Galvanic isolated dual channel IGBT driver IC

The EiceDRIVER™ galvanically isolated dual-channel IGBT driver IC (e.g. 2ED020I12FAXUMA2) from Infineon comes with embedded desaturation protection and embedded gate clamping for unipolar supply operations. It supports unipolar or bipolar supply modes.

Visit Product Page

Supply & Communication

OPTIREG™ Linear and Switcher

Infineon OPTIREG™ portfolio is specially designed to fit into harsh automotive requirements. Especially the new products such as Linear Voltage Regulators of new series TLS850 or the new OPTIREG™ Switcher are designed to support wider qualification profiles of new applications.

Visit Product Pages:

OPTIREG™ Linear ( Linear Voltage Regulators )

OPTIREG™ Switcher ( DC-DC Converter )

OPTIREG™ PMIC

Infineon’s TLF35584 is a multiple output system supply for safety-relevant applications supplying 3.3 V microcontrollers, transceivers and sensors based on an efficient and flexible pre-/post-regulator concept over a wide input voltage range. The wide switching frequency range optimizes efficiency and enables designers to use small filter components.

Visit Product Page

High Speed CAN transceiver

The TLE9251VSJ is the latest Infineon high-speed (HS) CAN transceiver generation, used inside HS CAN networks in automotive and industrial applications. It supports CAN FD data frames at 5 Mbits/s with wake-up capability and is fully compliant with ISO11898-2 (2016).

Visit Product Page

Lite SBC

The TLE9471ES from Infineon is a Lite SBC, designed for various CAN automotive applications. It acts as the main power supply for the microcontroller and as an interface for the CAN bus network. A high level of integration results in a small footprint. Highlights include hardware scalability and compatibility.

Visit Product Page

Control and Communication

AURIX™ 32-bit microcontroller family

Infineon’s AURIX™ 32-bit microcontroller family (SAK-TC275TP-64F200N DC, SAK-TC265D-40F200N BC, SAK-TC234LP-32F200N AC and SAK-TC224L-16F133N AC) provides a scalable portfolio that supports automotive safety standard ISO 26262. The embedded hardware security model (HSM) enables secure communications. AURIX™ highlights include an optimized peripheral set including ADC & timers for electromobility applications.

Visit Product Page

For more technical information, please visit this page

Security

SLI9670 with TPM 2.0 Profile

OPTIGA™ TPM SLI 9670 security controller comes flashed with securely coded firmware. This combined hardware/software turnkey solution offers a rich set of security features to save both design and testing effort. It is certified to Common Criteria EAL4+ and FIPS 140-2. Other highlights include an extended temperature range and AEC Q100 qualification.

Visit Product Page