48 V/12 V Bi-Directional Power Distribution Systems:
GaN Increases Efficiency, Reduces Size and Weight, Lowers Cost

 

48 V mild hybrids are projected to represent 10% of global vehicle sales by 2025, delivering a remarkable 10-15% increase in fuel efficiency and 4X improvements in power without engine size increases. As vehicles integrate power-hungry electronic functions and autonomous systems, the demand for efficient power distribution becomes critical.

GaN technology rises to the occasion, offering enhanced efficiency, compact size, and cost reduction for 48 V bus systems, empowering the automotive industry towards a greener and more powerful future.

GaN automotive power

Reference Designs

Automotive 48 V Reference Designs

  Part Number Description VIN VOUT lOUT
(A)
fSW
(kHz)
Featured Product  
EPC9159 Demonstration Board
EPC91591 kW, 48 V/12 V Bi-directional LLC Converter12 V - 52 V12 V83 A1600EPC2619
EPC2067
Buy Now
EPC9163 Demonstration Board
EPC9163 2 kW 48 V/12 V Bidirectional Power Module 20 V – 60 V (Buck)
11.3 V – 16 V (Boost)
5 V - 16 V (Buck)
20 V - 50 V (Boost)
140 A (Buck)
140 A (Boost input)
500 EPC2218 Buy Now
EPC9165 Demonstration Board
EPC9165 2 kW 48 V/14 V, 140 Bidirectional Power Module 20 V – 60 V (Buck)
11.3 V – 16 V (Boost)
5 V - 16 V (Buck)
20 V - 50 V (Boost)
140 A (Buck)
140 A (Boost input)
500 EPC2302 Buy Now
EPC9170 Demonstration Board
EPC9170 2 kW 48 V/14 V, 140 A Power Module20 V – 60 V (Buck)
11.3 V – 16 V (Boost)
5 V - 16 V (Buck)
20 V - 50 V (Boost)
140 V (Buck)
140 A (Boost)
500EPC23101
EPC2302
Buy Now

EPC’s application team is constantly working on new reference designs. If there is a requirement not met by the listed boards, please contact us via Ask a GaN Expert to discuss your application further.

Half-bridge development boards are available for quick evaluation of most eGaN FETs and ICs.

Products

Products: Recommended GaN Devices for 48 V Power Distribution

Part Number Status Configuration VDS
max
VGS
max
max
RDS(on)
(mΩ)
@5VGS
QG
typ
(nC)
QGS
typ
(nC)
QGD
typ
(nC)
QOSS
typ
(nC)
ID (A) Pulsed ID
(A)
Package
(mm)
EPC2252 Preferred Single AEC 80 6 11 3.5 1 0.5 15 8.2 75 BGA 1.5x1.5 Buy Now
EPC2204A Preferred Single AEC 80 6 6 5.7 1.8 0.8 25 29 125 LGA 2.5 x 1.5 Buy Now
EPC2218A Preferred Single AEC 80 6 3.2 10.5 3.2 1.5 46 60 231 LGA 3.5 x 1.95 Buy Now
EPC2206 Preferred Single AEC 80 6 2.2 15 4.1 3 72 90 390 LGA 6.05 x 2.3 Buy Now
GaN Power Bench

Access cross reference search, design tools, models, and performance simulations in our GaN Power Bench to assist your design process.

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Technical Documents

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Videos

3 Ways GaN is Driving Changes in Automotive Systems