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UM90038
NX-HB-GAN3R2-BSC half-bridge evaluation board
Abstract:
The NX-HB-GAN3R2-BSC Evaluation Board is a half-bridge converter circuit using Nexperia power GaN
FETs GAN3R2-100CBE. This user manual aims to support laboratory setup of the evaluation board and
gives and an overview on testing capabilities and typical results.
Keywords:
GaN FET, half-bridge, converter, evaluation board, WLCSP
Rev. 1.0 — 27 June 2024
User manual
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Summary of Contents for Nexperia NX-HB-GAN3R2-BSC
- Page 1 NX-HB-GAN3R2-BSC half-bridge evaluation board Abstract: The NX-HB-GAN3R2-BSC Evaluation Board is a half-bridge converter circuit using Nexperia power GaN FETs GAN3R2-100CBE. This user manual aims to support laboratory setup of the evaluation board and gives and an overview on testing capabilities and typical results.
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Page 2: Fig. 1. Example Of A Safety Enclosure In The Nexperia Lab
2. High Voltage Safety Precautions Read all safety precautions before use! Please note that this document covers only the NX-HB-GAN3R2-BSC half-bridge evaluation board and its functions. For additional information, please refer to the Product Specification To ensure safe operation, please carefully read all precautions before handling the evaluation board. -
Page 3: Fig. 2. Example Of A Probe Positioner
NEVER handle the evaluation board during operation under ANY circumstances After use the Nexperia Evaluation Board contains components which may store high voltage and will take time to discharge. Carefully probe the evaluation board once the power has been removed to check that all capacitors have been discharged. -
Page 4: Warnings
If the on-board pulse generation circuit is used in boost mode, a zero input corresponds to 100% duty cycle for the active low-side switch. 3. Introduction The NX-HB-GAN3R2-BSC half-bridge evaluation board provides the elements of a simple buck or boost converter, see Fig. -
Page 5: Fig. 4. Functional Block Diagram
UM90038 Nexperia NX-HB-GAN3R2-BSC half-bridge evaluation board 3.1. Quick reference information Table 1. NX-HB-GAN3R2-BSC evaluation board Input/Output specifications Parameter Value Input and output voltage 60 VDC max GAN3R2-100CBE junction 150 °C max temperature Maximum power Depends on operation conditions, observe T... -
Page 6: Fig. 5. Supply And Load Connections For Buck (A) And Boost (B) Configurations
R7 and R13 should be replaced with higher values (e.g. 10 kΩ). UM90038 All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2024. All rights reserved © Submit document feedback User manual Rev. -
Page 7: Fig. 6. Input Configurations. (A) Using A Single Source For Either Buck Or Boost Mode (B) Using Two Signal Sources. 7 Fig. 7. Non-Overlapping Gate Pulses
Q2 and Q3 of about 7 ns. Fig. 7. Non-overlapping gate pulses UM90038 All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2024. All rights reserved © Submit document feedback User manual Rev. 1.0 — 27 June 2024... -
Page 8: Fig. 8. Mmcx Connector Probing With Both Passive And Isolated Probes. The Inductor Is Replaced With A Simple Litz Wire Loop For Soft Switching Measurements
Fig. 9 Fig. 10 show typical hard switching waveforms. UM90038 All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2024. All rights reserved © Submit document feedback User manual Rev. 1.0 — 27 June 2024 8 / 21... -
Page 9: Fig. 9. Low-Side Turn Off, High-Side Turn On
50% so that the output voltage is at half the input voltage. The switching frequency is set to 6.78 MHz which is often used for wireless charging. UM90038 All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2024. All rights reserved © Submit document feedback User manual Rev. -
Page 10: Fig. 11. Voltage And Current Soft Switching Waveforms
Fig. 12 shows a typical soft switching waveform at 6.78 MHz. UM90038 All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2024. All rights reserved © Submit document feedback User manual Rev. 1.0 — 27 June 2024... -
Page 11: Fig. 12. Soft Switching Waveform At 6.78 Mhz
Fig. 13. Efficiency for a buck converter 48 V to 12 V 9. Design details UM90038 All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2024. All rights reserved © Submit document feedback User manual Rev. 1.0 — 27 June 2024... -
Page 12: Fig. 14. Nx-Hb-Gan3R2-Bsc Schematic
VSWto PGND BAS316 PGND Fig. 14. NX-HB-GAN3R2-BSC schematic UM90038 All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2024. All rights reserved © Submit document feedback User manual Rev. 1.0 — 27 June 2024 12 / 21... -
Page 13: Fig. 15. Nx-Hb-Gan3R2-Bsc Pcb Top Layer
UM90038 Nexperia NX-HB-GAN3R2-BSC half-bridge evaluation board 9.2. NX-HB-GAN3R2-BSC PCB Layout Fig. 15. NX-HB-GAN3R2-BSC PCB top layer UM90038 All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2024. All rights reserved © Submit document feedback User manual Rev. -
Page 14: Fig. 16. Nx-Hb-Gan3R2-Bsc Pcb Inner Layer 1
UM90038 Nexperia NX-HB-GAN3R2-BSC half-bridge evaluation board Fig. 16. NX-HB-GAN3R2-BSC PCB inner layer 1 Fig. 17. NX-HB-GAN3R2-BSC PCB inner layer 2 UM90038 All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2024. All rights reserved © Submit document feedback User manual Rev. -
Page 15: Fig. 18. Nx-Hb-Gan3R2-Bsc Pcb Bottom Layer
UM90038 Nexperia NX-HB-GAN3R2-BSC half-bridge evaluation board Fig. 18. NX-HB-GAN3R2-BSC PCB bottom layer UM90038 All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2024. All rights reserved © Submit document feedback User manual Rev. 1.0 — 27 June 2024... -
Page 16: Bill Of Materials
UM90038 Nexperia NX-HB-GAN3R2-BSC half-bridge evaluation board 9.3. Bill of Materials Table 2. NX-HB-GAN3R2-BSC evaluation board Bill of Materials Designator Description Part Number Manufacturer Ceramic Capacitor 1nF ±20% 50V 885012206083 Wurth Electronics X7R 0603 C2, C3 Ceramic Capacitor 10uF ±10% 25V... -
Page 17: Revision History
Revision Date Description number 2024-06-27 Initial version. UM90038 All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2024. All rights reserved © Submit document feedback User manual Rev. 1.0 — 27 June 2024 17 / 21... -
Page 18: Legal Information
Nexperia. In no event shall Nexperia be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal... - Page 19 NX-HB-GAN3R2-BSC half-bridge evaluation board List of Tables Table 1. NX-HB-GAN3R2-BSC evaluation board Input/ Output specifications............5 Table 2. NX-HB-GAN3R2-BSC evaluation board Bill of Materials................16 Table 3. Revision history............17 UM90038 All information provided in this document is subject to legal disclaimers.
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Page 20: Table Of Contents
Nexperia NX-HB-GAN3R2-BSC half-bridge evaluation board List of Figures Fig. 1. Example of a safety enclosure in the Nexperia lab... 2 Fig. 2. Example of a probe positioner........3 Fig. 3. NX-HB-GAN3R2-BSC half-bridge evaluation board. 4 Fig. 4. Functional block diagram.......... 5 Fig. -
Page 21: Nexperia B.v. 2024. All Rights Reserved
Nexperia B.V. 2024. All rights reserved © For more information, please visit: http://www.nexperia.com For sales office addresses, please send an email to: salesaddresses@nexperia.com Date of release: 27 June 2024 UM90038 All information provided in this document is subject to legal disclaimers.
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