48V pumps and fans

With increasing electrification of vehicles and legal requirements about emission regulation, new technologies have emerged in the automotive industry. The availability of 48V battery systems is one of the prominent trends in meeting the emerging demands on power due to electrification. Adoption of a 48V system enables significant current reduction for the same power, with accompanying weight reduction for the wiring harness, resulting in lower fuel consumption. As a new voltage domain for vehicles, today’s selection of 48V micro-hybrid components is limited. But this doesn’t change the fact that you need cost-effective, high performance and well-aligned electrification solutions for your applications.
Whether entry-level or for upper market segments, Infineon offers a complete system of chipset solutions – from voltage regulators, transceivers and sensors to microcontrollers, smart power drivers and very low-resistance MOSFETs – for 48V systems.

The TLE9180D-21QK with two integrated current sense amplifiers (CSA) and TLE9180D-31QK with three CSA are advanced gate driver ICs dedicated to control 6 external N-channel MOSFETs for high current 3 phase motor drives. A sophisticated high voltage technology allows the ICs to support applications for single and mixed battery systems with battery voltages of 12 V, 24 V and 48 V. A smooth operation from 0..100% duty cycle along with 2 A (typ.) high power gate driver stage, configurable protection modes with a detailed diagnosis and SPI interface provide the high level of performance and safety features required for 48 V applications. A high level of integration including functionally independent phase voltage feedback and OpAmps, a smart supply concept and safety barrier to protect the MCU allows for system-level BOM savings. Bridge, motor and supply related pins can withstand voltages of up to 90 V. Motor related pins can even withstand negative voltage transients down to -15 V without damage.

Infineon´s second generation AURIX™ microcontroller in embedded flash 40 nm technology offers ideal solutions for 48 V applications. Compared to its predecessor, it has an increase in performance, memory sizes, connectivity and more scalability to address the new automotive trends and challenges. In terms of performance, T33xLP offers 1 core running at 200 MHz (300 MHz*) and up to 248 KBytes embedded RAM, and consuming below 1 W.