onsemi EVBUM2920/D User Manual

Half‐Bridge Power Module
Based on NCP58921 650 V
Integrated Driver GaN
Evaluation Board User's
Manual
EVBUM2920/D
Description
The evaluation board user's manual provides basic information
about the Half-Bridge Power Module with DC-DC power supply
which is based on NCP58921 650 V Integrated Driver GaN Power
Switch. It is designed as a universal building block for that is suitable
for the most topologies requiring Half-Bridge (HB) arrangement. This
building was designed to easily test NCP58921 performance in
various converter types. Evaluation board contains Power HB Stage
using NCP58921 or other member of family (NCP58922), the dual
insulated DC-DC power supply dedicated for each power switch, and
it's driven by NCP1392, Galvanically Insulated Driver NCP51561
which is supplied with 5 V LDO regulator NCP718. Simple
modification of HB Module enables to implement it into LLC Stage.
The Half-Bridge Power Module was designed to offer 600 V
insulation level while its dimensions are still compact. Insulation level
is possible to enhance with stretching PCB size. The NCP5892x
integrated implementation significantly reduces circuit and package
parasitics while enabling more compact design. The NCP58921
integrates a high-performance, high frequency, driver and a 650 V,
50 mW Gallium-Nitride (GaN) High Electron Mobility Transistors
(HEMT) in a single switch structure while NCP58922 is a very similar
device that integrates 650 V, 78 mW GaN HEMT. The Insulated Metal
Substrate (IMS) board was selected to extend thermal performance of
NCP5892x devices. HB Power Module utilizes flux canceling loop
(FCL) to reduce stray inductance of power path and minimize
switching node overshoots. This manual provides brief information
about Integrated Driver GaN implementation, its schematic diagram
and interfacing. Please use links in the literature section to get detailed
technical information about NCP58921, NCP58922, NCP51561,
NCP1392 and NCP718 devices that manual refers to.
© Semiconductor Components Industries, LLC, 2024
November, 2024 − Rev. 0
EVAL BOARD USER'S MANUAL
Figure 1. Board Photo
VDR
11
VDR GND
12
NC
13
LDO OUT
14
VDD
C
VDD
2.2 mF/
IN
2.5 V
+5 V out
C
GND
100 nF/
10 V
Figure 2. NCP58921 Pin Assignment with its
Minimum Component Schematic
1
www.onsemi.com
DRAIN
10 9 8 7 6 5 4 3 2 1
NCP58921
Pinout − Top view
EXPOSED PAD = SOURCE
15 16 17 18 19 20 21 22
SOURCE
NCP58921
1−10
13
DRAIN
16 NC
VDD
EN
18
VDR
INPUT REG.
GaN
DRV
LOGIC &
HEMT
IN
17 & UVLO
UVLO
14
LDO
OUT
LDO
15
GND
VDR_GND SOURCE
VDR
11 12
R
ON
C
VDR
0R
100 nF/25 V
Publication Order Number:
EVBUM2920/D
26
25
24
23
DRAIN
SOURCE