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Wolfspeed SiC Power for Automotive On-Board DC/DC Converter Applications
Automotive

On-Board DC/DC Converter

Wolfspeed Silicon Carbide is ready for the challenges that today’s EVs present, especially when it comes to on-board DC/DC converters.

Overview

Past to Present: A Revolution in Automotive Electrical System Design

The electrical systems in vehicles of the past were simple — responsible for basic lighting, providing ignition, and perhaps powering a basic sound system. Modern vehicles, however, have far more complex electrical requirements, including advanced lighting systems, infotainment platforms, navigational and guidance controls, and much more. Electric vehicles (EVs), in particular, have taken power requirements to a new level, and the rise of autonomous vehicles are unlocking even further complications in power design.

What this means for automotive power is changes to the on-board DC/DC converter responsible for providing power to this complex and diverse set of systems.

Wolfspeed's 6.6 kW High Frequency DC-DC Converter Reference Design
Wolfspeed's 6.6 kW High Frequency DC-DC Converter Reference Design

What Is an On-Board DC/DC Converter?

The on-board DC/DC converter is responsible for taking the DC power from the battery and converting and regulating the voltage to meet the needs of this varying set of systems. It must do so in real time, as many systems have interdependencies that require them to work as a collective unit. Failure can be catastrophic.

Traditional Silicon: Is It Up to the Challenge?

For EVs specifically, the need to have reliable and consistent power is paramount. Traditional silicon is simply not up for the challenges of modern EVs. Wolfspeed Silicon Carbide (SiC) on the other hand, is specially built to meet this need. With greater reliability and improved efficiency over any silicon-based solution, Wolfspeed Silicon Carbide is ready for the challenges that today’s EVs present, especially when it comes to on-board DC/DC converters.


Diagram of a car with On-Board DC/DC Converter applications
On-Board DC/DC Converter

Improved Reliability, Cleaner Power from Wolfspeed Silicon Carbide

Wolfspeed Silicon Carbide is uniquely capable of incredible reliability and efficiency, even in the most demanding power applications. In electric vehicle DC/DC converter applications, this can mean keeping mission-critical systems supplied with the right voltages consistently and sustainably, as well as keeping overall vehicle weight down for improved performance and efficiency.
Up To
30%
Lower Losses
Up To
50%
Higher Power Density
Up To
15%
System Cost Savings

E-Series Discrete Silicon Carbide MOSFETs for On-Board DC/DC Converters

View All Discrete SiC MOSFETs
Product SKU
Buy Online
Request Sample
Data Sheet
CAD Model
Blocking Voltage
RDS(ON) at 25°C
Generation
Current Rating
Gate Charge Total
Output Capacitance
Total Power Dissipation (PTOT)
Maximum Junction Temperature
Package
Qualification
E3M0120090J
900 V
120 mΩ
Gen 3
22 A
18 nC
48 pF
83 W
150 °C
TO-263-7
Automotive
1200 V
75 mΩ
Gen 3
32 A
55 nC
58 pF
145 W
175 °C
TO-247-4
Automotive
1200 V
75 mΩ
Gen 3
32 A
57 nC
58 pF
145 W
175 °C
TO-247-3
Automotive

Additional Discrete Silicon Carbide MOSFETs for On-Board DC/DC Converters

Product SKU
Buy Online
Request Sample
Data Sheet
CAD Model
Blocking Voltage
RDS(ON) at 25°C
Generation
Current Rating
Gate Charge Total
Output Capacitance
Total Power Dissipation (PTOT)
Maximum Junction Temperature
Package
Qualification
650 V
25 mΩ
Gen 3
97 A
178 pF
175 °C
TO-247-3
Industrial
650 V
25 mΩ
Gen 3
97 A
112 nC
178 pF
326 W
175 °C
TO-247-4
Industrial
650 V
45 mΩ
Gen 3
49 A
63 nC
101 pF
176 W
175 °C
TO-247-3
Industrial
650 V
45 mΩ
Gen 3
49 A
63 nC
101 pF
176 W
175 °C
TO-247-4
Industrial
650 V
120 mΩ
Gen 3
22 A
28 nC
45 pF
98 W
175 °C
TO-247-3
Industrial
650 V
120 mΩ
Gen 3
21 A
26 nC
45 pF
86 W
175 °C
TO-263-7
Industrial
650 V
120 mΩ
Gen 3
22 A
28 nC
45 pF
98 W
175 °C
TO-247-4
Industrial
650 V
60 mΩ
Gen 3
29 A
46 nC
80 pF
150 W
175 °C
TO-247-3
Industrial
650 V
60 mΩ
Gen 3
36 A
46 nC
80 pF
136 W
175 °C
TO-263-7
Industrial
650 V
60 mΩ
Gen 3
37 A
46 nC
80 pF
150 W
175 °C
TO-247-4
Industrial
900 V
280 mΩ
Gen 3
11.5 A
9.5 nC
20 pF
54 W
150 °C
TO-247-3
Industrial
900 V
280 mΩ
Gen 3
9.5 nC
20 pF
50 W
150 °C
TO-263-7
Industrial

E-Series Discrete Silicon Carbide Schottky Diodes for On-Board DC/DC Converters

Product SKU
Buy Online
Request Sample
Data Sheet
CAD Model
Blocking Voltage
Current Rating
Generation
Forward Voltage(VF(type))
Maximum Continuous Current (IF)
Total Capacitive Charge (QC (typ))
Total Power Dissipation (PTOT)
Package
Qualification
Recommended For New Design?
650 V
8 A
Gen 3
1.5 V
8 A
176 W
TO-263-2
Automotive
Yes
650 V
20 A
Gen 3
1.5 V
20 A
110 nC
TO-247-3
Automotive
Yes
650 V
30 A
Gen 3
1.5 V
30 A
TO-247-3
Automotive
Yes
1200 V
10 A
Gen 4
1.5 V
10 A
56 nC
166 W
TO-220-2
Automotive
Yes
1200 V
20 A
Gen 4
1.5 V
20 A
99 nC
242 W
TO-220-2
Automotive
Yes
1200 V
20 A
Gen 4
1.5 V
20 A
52 nC per leg
176 W
TO-247-3
Automotive
Yes
1200 V
20 A
Gen 4
1.5 V
20 A
110 nC
TO-263-2
Automotive
Yes

Reference Designs to Accelerate Your Time to Market

Wolfspeed not only offers the solutions to bring your design into the future of automotive technology, but our Reference Designs can help you accelerate your design cycle process. Reference Designs include full system design resource package with schematics, BOM, and more.

Featured Reference Designs for On-Board DC/DC Converters

Name
Topology
Status
Package
Designed By
Product SKU
View Product
AC to DC, DC to AC
Paper Design Only
TO-247-4
Wolfspeed
CRD-06600FF10N
AC to DC, DC to AC
Paper Design Only
TO-247-3
Wolfspeed
CRD-06600FF065N-K
DC to DC
Paper Design Only
TO-247-4
Wolfspeed
CRD-22DD12N
DC to DC
Paper Design Only
TO-247-3
Wolfspeed
CRD-06600DD065N
DC to DC
Paper Design Only
TO-247-4
Partner
TIDA-010054
DC to DC
Paper Design Only
TO-247-4
Partner
TIDM-02002

Wolfspeed: Disruptive by Design

From its inception, Wolfspeed has been focused on the future, and that Silicon Carbide power is the technology that can bring your business forward.

Wolfspeed has more 30 years of experience in Silicon Carbide power and 7+ trillion installed field hours. We have invested in the future of Silicon Carbide technology and are expanding our capacity thirtyfold to support your business’s growth. With more than 20 years of diode and MOSFET production, we are equipped to supply the components that enable the future of On-Board DC/DC Converters.

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