Infineon Technologies has introduced the OPTIREG TLE9744QK, a fully integrated power management IC1. integrated circuitIC is the common term for an integrated circuit.2. ion chromatographyAnalytical method that separates and identifies the components of a mixture. for high-voltage traction inverter applications in electric and hybrid vehicles. The device combines complete power-supply functions, resolver excitation, and a dedicated safety engine in a single package.
The PMIC is intended to simplify traction inverter ECU design, where multiple isolated rails must be provided for microcontrollers, communication modules, and sensors. By consolidating these functions, the TLE9744QK replaces several discrete components and reduces both system cost and design complexity.
Infineon says the integration lowers the bill of materials and can shrink the PCBprinted circuit boardBoard that mechanically supports components and electrically interconnects them with copper traces. footprint by up to 70 percent for the replaced devices. The chip also generates the resolver excitation signal internally, removing the need for external resolver driver and monitoring circuits. Broad compatibility with a range of microcontrollers and gate drivers is meant to support reuse of existing MCU1. microprocessor control unit2. mobile calibration unit3. microcontrollerA microcontroller is a compact integrated circuit designed to execute embedded control tasks in electronic systems. platforms without major hardware changes.
A separate focus is functional safety. The integrated safety logic continuously monitors phase currents, DCdirect currentElectric current that flows in one direction.-link voltage, and the health status of the MCU1. microprocessor control unit2. mobile calibration unit3. microcontrollerA microcontroller is a compact integrated circuit designed to execute embedded control tasks in electronic systems. and gate drivers. If the main MCU1. microprocessor control unit2. mobile calibration unit3. microcontrollerA microcontroller is a compact integrated circuit designed to execute embedded control tasks in electronic systems. fails, the secondary hardware path can force a safe state. A redundant supply input keeps this safety function alive even if the main low-voltage supply is lost, supporting ASIL-D compliance according to ISO 26262. The OPTIREG TLE9744QK is available now, with samples, evaluation boards, reference designs, documentation, software, and tools offered on request.