By David Manners 18th July 2022
ST is shipping an automotive high-side switch controller which combines enhanced system-protection and diagnostic features with ST’s I2-t silicon-fuse technology.
ST is shipping an automotive high-side switch controller which combines enhanced system-protection and diagnostic features with ST’s I2-t silicon-fuse technology. As the first in ST’s new STi2Fuse family with integrated I2-t protection, the VNF1048F is compatible with 12V, 24V, and 48V automotive power subsystems (board nets).
Its flexibility is suitable for the latest automotive zonal electronic/electrical (E/E) architectures that boost efficiency and reliability while supporting increased electrification and extra functions for smart driving.
The VNF1048F has an SPI for a host MCU to configure and monitor system-protection and diagnostic features.
These include under-voltage and over-temperature protection, thermal protection for the external high-side MOSFET, desaturation shutdown, and I2-t fuse settings. High-precision digital current sensing is built in.
ADCs for monitoring the temperature-sensing thermistor voltage, output voltage, and MOSFET drain-source voltage are also integrated. ST’s I2-t fuse, a defining feature of the STi2Fuse product family, provides over-current protection. Silicon fuses also help simplify vehicle wiring harnesses and reduce weight by eliminating user-accessible fuse boxes and the associated cabling and installation overheads.
The savings in weight contribute to improving vehicle performance, including extended driving range and reduced CO2 emissions.
The VNF1048FTR is in production now and available in the QFN 32L 5mm x 5mm 32-lead package, from $1.77 for orders of 1000 pieces.
For more information: www.st.com/sti2fuse.
Your email address will not be published. Required fields are marked *
Get our news, blogs and comments straight to your inbox! Sign up for the Electronics Weekly newsletters: Mannerisms, Gadget Master and the Daily and Weekly roundups.
Read our special supplement celebrating 60 years of Electronics Weekly and looking ahead to the future of the industry.
Read the Electronics Weekly @ 60 supplement »
Read the first ever Electronics Weekly online: 7th September 1960. We've scanned the very first edition so you can enjoy it.
Read the very first edition »
Electronics Weekly teams up with RS Grass Roots to highlight the brightest young electronic engineers in the UK today.
Read our special supplement celebrating 60 years of Electronics Weekly and looking ahead to the future of the industry.
Read the Electronics Weekly @ 60 supplement »
Read the first ever Electronics Weekly online: 7th September 1960. We've scanned the very first edition so you can enjoy it.
Read the very first edition »
Tune into this Xilinx interview: Responding to platform-based embedded design
Tune into this podcast to hear from Chetan Khona (Director Industrial, Vision, Healthcare & Sciences at Xilinx) about how Xilinx and the semiconductor industry is responding to customer demands.
By using this website you are consenting to the use of cookies. Electronics Weekly is owned by Metropolis International Group Limited, a member of the Metropolis Group; you can view our privacy and cookies policy here.