48V Mild Hybrid Systems

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Documentation

Tools and Software

Solutions

48V electrical systems have advantages over current 12V systems, providing 4 times the power and providing greater efficiency when powering fans, pumps, electric power steering racks, and compressors. Higher voltages are more efficient, but automotive regulations demand costly shielded cabling (galvanic isolation) above 60V, so 48V systems keep the cost down. 48V systems used in Mild hybrids, are the cost effective, yet emission reducing first step on the electrification ladder.

48V Electric Supercharger

With the aim of reducing CO2 emissions, turbocharger systems are evolving from exhaust gas driven to electric driven forms for use in Mild Hybrid Electric Vehicles (MHEV). The superchargers improve the response of the engines at low revolutions and

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48V Start-Stop System

A start-stop system aims at reducing the amount of engine idle time, by shutting down and restarting the internal combustion engine automatically when the vehicle stops. Thus, it contributes to improving fuel economy and reducing CO2 emissions. This

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AEC-Q100 and AEC-Q101 products

ST is able to offer a complete product portfolio including silicon power MOSFETs, protections, gate drivers and microcontrollers, in accordance to AEC-Q100 and AEC-Q101 standards to build cost effective and efficient 48V vehicle networks.

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	Resource title		Latest update

Application Notes (5)

	Resource title	Latest update
PDF	AN5668 Current ranges and current setpoint - settings and out of range exceptions 1.0	21 Apr 2021	21 Apr 2021 AN5668 Current ranges and current setpoint - settings and out of range exceptions 1.0
PDF	AN5665 Electrovalves: principle of operation 1.0	20 Apr 2021	20 Apr 2021 AN5665 Electrovalves: principle of operation 1.0
PDF	AN5670 Hardware current control loop - Parameters choice for load driving optimization 1.0	29 Apr 2021	29 Apr 2021 AN5670 Hardware current control loop - Parameters choice for load driving optimization 1.0
PDF	AN5560 L9963 14 Cells BMC IC Evaluation Board Quick Guide 2.0	18 Nov 2020	18 Nov 2020 AN5560 L9963 14 Cells BMC IC Evaluation Board Quick Guide 2.0
PDF	AN5672 Solenoid driver channels parallel mode functionality: guidelines and limits 1.0	30 Apr 2021	30 Apr 2021 AN5672 Solenoid driver channels parallel mode functionality: guidelines and limits 1.0

Flyers (5 of 14)

	Resource title	Latest update
PDF	1200 V SiC diodes, 2 to 40 a in surface-mount and through-hole packages 1.0	25 May 2021	25 May 2021 1200 V SiC diodes, 2 to 40 a in surface-mount and through-hole packages 1.0
PDF	60, 80 and 100 V STripFET™ F7 MOSFETs 1.0	26 Mar 2021	26 Mar 2021 60, 80 and 100 V STripFET™ F7 MOSFETs 1.0
PDF	A798x, A597x switching regulators for car power management 1.0	25 May 2021	25 May 2021 A798x, A597x switching regulators for car power management 1.0
PDF	Automotive 600V RQ Ultrafast diode series - soft reverse recovery and low Vf - for output circuits 1.0	25 May 2021	25 May 2021 Automotive 600V RQ Ultrafast diode series - soft reverse recovery and low Vf - for output circuits 1.0
PDF	Automotive multichannel power management ICs 1.0	25 May 2021	25 May 2021 Automotive multichannel power management ICs 1.0
PDF	Automotive-grade 1200 V SCR for AC/DC converter applications 1.0	25 May 2021	25 May 2021 Automotive-grade 1200 V SCR for AC/DC converter applications 1.0
PDF	Automotive-grade 650 V SiC diodes boost the performance of power converters 2.0	25 May 2021	25 May 2021 Automotive-grade 650 V SiC diodes boost the performance of power converters 2.0
PDF	Developing innovative automotive electronics systems 1.0	23 Mar 2020	23 Mar 2020 Developing innovative automotive electronics systems 1.0
PDF	ETAS RTA AUTOSAR Starter kit 1.0	25 May 2021	25 May 2021 ETAS RTA AUTOSAR Starter kit 1.0
PDF	SOD128Flat Automotive-grade rectifiers 1.0	25 May 2021	25 May 2021 SOD128Flat Automotive-grade rectifiers 1.0
PDF	ST Diodes Finder : the new app for Android and iOS 2.0	25 May 2021	25 May 2021 ST Diodes Finder : the new app for Android and iOS 2.0
PDF	ST Thyristor Finder: SCRs and Triacs on Android and iOS 1.0	25 May 2021	25 May 2021 ST Thyristor Finder: SCRs and Triacs on Android and iOS 1.0
PDF	STGAP1AS - Breakthrough in robustness and flexibility 03.2017	25 May 2021	25 May 2021 STGAP1AS - Breakthrough in robustness and flexibility 03.2017
PDF	SiC MOSFETs: The real breakthrough in high-voltage switching 3.0	25 May 2021	25 May 2021 SiC MOSFETs: The real breakthrough in high-voltage switching 3.0

Selection Guides (5 of 6)

	Resource title	Latest update
PDF	Automotive powertrain and safety ICs 1.0	10 May 2021	10 May 2021 Automotive powertrain and safety ICs 1.0
PDF	Automotive-grade protection devices and rectifiers 1.0	25 May 2021	25 May 2021 Automotive-grade protection devices and rectifiers 1.0
PDF	Diodes and rectifiers selection guide 2.0	17 Mar 2021	17 Mar 2021 Diodes and rectifiers selection guide 2.0
PDF	Protection devices and integrated EMI filtering selection guide 2.0	11 May 2021	11 May 2021 Protection devices and integrated EMI filtering selection guide 2.0
PDF	Protection devices selection guide 1.0	11 May 2021	11 May 2021 Protection devices selection guide 1.0
PDF	SPC58 B/C/G-lines - Automotive MCUs for car body & security 1.0	11 May 2021	11 May 2021 SPC58 B/C/G-lines - Automotive MCUs for car body & security 1.0