EVALMASTERGAN3
Data brief
Demonstration board for MASTERGAN3 high power density half-bridge high
voltage driver with two 650 V enhanced mode GaN HEMT
Features
•
•
•
•
•
•
•
•
•
Half-bridge evaluation board equipped with MASTERGAN3 and able to
withstand 600 V
VCC input on screw connector or pin strip configured for MASTERGAN3 supply
voltages
Complete set of features to drive MASTERGAN3 with single or complementary
driving signal
Embedded deadtime generator to convert single PWM signal into dual
complementary LIN and HIN signals with independently adjustable deadtimes
On-board 3.3 V regulator for external circuitry supply (up to 50 mA)
35°C/W junction to ambient thermal resistance to evaluate large power
topologies
High frequency connector for MASTERGAN3 GL and GH pin monitoring
Spare footprint for low-side shunt, external bootstrap capacitors and high
voltage high capacitance bulk capacitor
RoHS compliant
Description
The EVALMASTERGAN3 board is an easy to use and quick to adapt tool to evaluate
the characteristics of MASTERGAN3 and to quickly create new topologies without
the need of complete PCB design.
Product status link
EVALMASTERGAN3
The EVALMASTERGAN3 provides an on-board programmable inputs deadtime
generator with a single VCC supply (typ. 6 V). An embedded linear voltage regulator
offers 3.3 V rail to supply low voltage logic circuit like microcontrollers or FPGA.
Some spare footprint is also included to customize the board to operate with final
application. These customizations include: use of separate input signal or single
PWM signal, use of external bootstrap diode, separate supply for VCC, PVCC or Vbo
and also the use of low-side shunt resistor for peak current mode topologies.
All pins of the MASTERGAN3 are accessible.
The EVALMASTERGAN3 is 56 x 70 mm wide, FR-4 PCB resulting in an Rth(J-A) of
35°C/W, without forced airflow.
DB4462 - Rev 1 - April 2021
For further information contact your local STMicroelectronics sales office.
www.st.com
EVALMASTERGAN3
Architecture and component placement
1
Architecture and component placement
Figure 1. EVALMASTERGAN3 – top component placement
Figure 2. EVALMASTERGAN3 – bottom component placement
DB4462 - Rev 1
page 2/13
EVALMASTERGAN3
Board power-up and input connection
2
Board power-up and input connection
The following image shows how to supply the MASTERGAN3, how to provide LIN and HIN inputs and set the
programmable deadtime generator.
Figure 3. Supply and signal connection
The LIN, HIN inputs can be supplied from the on-board deadtime generator or directly from an external generator
(as DSP/MCU) with the following settings:
Table 1. Connector map
Ref
J2
Pin #
Name
Function
1
VCC
INPUT power
Board supply voltage: set to a value between 4.5 V and 6 V
2
VDD (3V3)
OUT power
Output voltage of on-board 3.3 V regulator: it can be used to
supply external circuitry (50 mA max.)
3
GND
PWR
Board reference potential
4
HIN_B
OUT digital
Buffered HIN signal (0-3.3 V level output)
5
LIN_B
OUT digital
Buffered LIN signal (0-3.3 V level output)
6
GND
PWR
Board reference potential
7
PWM
INPUT digital
PWM input signal (0 to 3.3 V or 5 V) – see Table 3
8
SD_IN
INPUT digital
Disable input signal (0 to 3.3 V or 5 V) – see Table 3
9
GND
PWR
Board reference potential
1
HIN
OUT (INPUT) digital
The pin is connected to HIN pin of MASTERGAN3: the pin can
be used either to monitor the output of the deadtime generator or
to force the input to MASTERGAN3 according to the status of R4
(see Table 2)
2
GND
PWR
Board reference potential
3
GND
PWR
Board reference potential
J3
DB4462 - Rev 1
Description
page 3/13
EVALMASTERGAN3
Board power-up and input connection
Ref
Pin #
Name
Function
Description
J3
4
LIN
OUT (INPUT) digital
The pin is connected to LIN pin of MASTERGAN3: the pin can
be used either to monitor the output of the deadtime generator or
to force the input to MASTERGAN3 according to the status of R7
(see Table 2)
J4
1,2,3
HV
INPUT Power
These three pins are connected to VS pins of MASTERGAN3:
connect high voltage potential to this pin according to
MASTERGAN3 recommended values (520 V)
J5
1,2,3
OUT
OUTPUT Power
These three pins are connected to OUT pins of MASTERGAN3:
connect the load to this terminal (resonant tanks, transformers,…)
J6
1,2,3
LS_S
POWER
These three pins are connected to SENSE pins of
MASTERGAN3: the board is configured with shorted sense
resistor (R15), therefore this pin can be connected to the
reference voltage of high voltage potential (GND_P)
1
VCC
INPUT Power
Board supply voltage: set to a value between 4.5 V and 6 V
2
GND
POWER
Board reference potential
CN1
GH
OUTPUT
To be used with proper MMCX male connector to monitor the
GH pin of MASTERGAN3 with high bandwidth, high voltage
differential probes (optically isolated probes are recommended)
CN2
GL
OUTPUT
To be used with proper MMCX male connector to monitor the
GL pin of MASTERGAN3 with high bandwidth differential probes
(optically isolated probes are recommended)
J12
Table 2. Device input selection
R4, R7
Input source
Function and description
LIN & HIN are generated by the on-board deadtime generator
from a single PWM signal on J2, PIN 7
0-47 Ω (closed)
J2: PWM pin
Open
J3: LIN & HIN pin
Direct connection to LIN & HIN MASTERGAN3 pins.
LIN, HIN input range: up to 20 V
Table 3. Input signal truth table
SD_IN
PWM
LIN
HIN
L
X
L
L
H
L
H
L
H
H
L
H
The recommended power-on sequence is to turn VCC on first, then apply the HV bus voltage. The recommended
power-off sequence is to turn off the HV bus supply first, then VCC.
DB4462 - Rev 1
page 4/13
VCC
1
OPEN
SD_IN
1k
R10
VCC
PGND
J0603
TP3
TP4
TP6
SM A
1
1
PVCCpin
LIN
HIN
LS_S
3
26
24
25
28
32
HIN
LIN
SD
TP8
27
R21
HV
10R
R0603
HIN
PGND
PVCC
MASTERGAN3
HIN
LIN
SD/OD
GND
EP1_GND
VCC
U6
22p F/ 25V
C23
LIN
22pF/25V
C20
1
N.M . TUM D2SM
D3A
D3
C17
47n F/ 25V/ X7R
C0402
C19
330p F/ X7R
R9
10k
SD
TP9
TP12
2
N.M .
2
VCCpin
C16
47n F/ 25V/ X7R
C0402
TP2
PGND
J0603
CLOSED
G N D _ P O WE R
JP3
0R
J0603
R12
P GND
JP1
VCC
C10
1u F/ 25V/ X5R
C0805
R16
N.M .
J0805
47R
R17
N.M .
J0805
TP13
BOOT_ I N
J1
N.M .
C15
4.7u F/ 25V
C0805
2
VCC
15
16
17
18
19
BOOT
OUTb
GH
TP14
TP10
GL
OUT
OUT
OUT
EP3_OUT
VS
VS
VS
VS
VS
EP2_SNS
SENSE
SENSE
SENSE
SENSE
SENSE
SENSE
SENSE
SENSE
J10
N.M.
VCC
1
2
3
R15
0R
10R
2
14
13
12
34
22
21
20
R0805
R14
33
4
5
6
7
8
9
10
11
1
2
DB4462 - Rev 1
J9
N.M .
PGND
C18
N.M .
C0402
OUTb
TP18
TP17 L S_ S
TP15
OUT
TP16
PGND
C22 C0603
1u F/ 10V/ X7R
PVCC
GL
GH
C14
N.M .
C0402
OUTb
C11
1u F/ 25V/ X5R
C0805
BOOT
C13
47n F/ 25V/ X7R
C0402
OUTb
BOOTpin
J7
N.M .
1
0R
TP19
D5
BZT585B6V2T
SOD523
J0603
R13
0R
J0603
PVCCpin
HV
OUT
HV
1
2
1
2
3
1
2
3
1
2
3
BOOTpin
D4
BZT585B6V2T
SOD523
R11
J11
N.M .
J6
J5
J4
TP11
3
2
PVCC
EVALMASTERGAN3
Schematic diagram
Schematic diagram
Figure 4. EVALMASTERGAN3 schematic – High density power driver
page 5/13
R8
47k
R0603
PWM
J2
1
2
3
4
5
6
7
8
9
C8
22pF/25V
C0603
C24 C0603
100nF/25V/X7R
SD_IN
PWM
HIN_B
LIN_B
VDD
VCC
OPEN
C0603
Vin
GND
GND
INH
VDD
Vout
GND
GND
C0603
1
2
3
4
5
VDD
74LVC1G14W5
NOT
NC VCC
A
GND
Y
100nF/25V/X7R
U3
C5
1
R3
J0603
TR1
N.M.
sod-323
R6
L S DT
J0603
TR2
N.M.
sod-323
D2 BAS70J
2
C7
330pF/X7R
C0603
R23 0R
J0603
J0603
R20 0R
LIN_B
J0603
R19 0R
HIN_B
C26 C0603
1uF/10V/X7R
C3
330pF/X7R
C0603
R22 0R
J0603
C25 C0603
1uF/10V/X7R
HS DT
1K
1
2
1
D1 BAS70J
2
1K
1
2
3
J0603
R18 0R
100nF/25V/X7R
U1
1
5
NC VCC
2
A
3
4
GND
Y
74LVC1G17W5
BUFFER
C1
8
7
6
5
VDD
U5
KF33BD-TR
J0603
JP2
J12
VCC
1
2
3
1
2
3
C29
VDD
74LVC1G17W5
BUFFER
NC VCC
A
GND
Y
100nF/25V/X7R
U4
C0603
4
5
VDD
5
NC VCC
A
4
GND
Y
74LVC1G17W5
BUFFER
C6
R0402
R0402
N.M.
C2225
C0603
HV
OUTb
R1 0R
PGND
R2 0R
100nF/25V/X7R
U2
C2
GH
GL
1
1
S
CN2 LS Vgs
BNC conn.
G1
G2
G3
G4
S
CN1 HS Vgs
BNC conn.
2
3
4
5
G1
G2
G3
G4
DB4462 - Rev 1
47R
47R
R0603
R7
R0603
R4
470nF/630V/X7R
C2225
C28
2
3
4
5
VCC
J3
LIN
1
2
3
4
HIN
N.M.
El ect r .
P 10
+ C27
EVALMASTERGAN3
Schematic diagram
Figure 5. EVALMASTERGAN3 schematic – Deadtime generator and connectors
page 6/13
EVALMASTERGAN3
Bill of material
4
Bill of material
Table 4. Bill of material
DB4462 - Rev 1
Item
Q.ty
Ref.
Value
Description
1
2
CN1, CN2 BNC connector
MMCX Straight
Receptacle
2
5
C1, C2,
C5, C6,
C24
SMT ceramic capacitor
5
2
C10, C11
6
3
C13, C16, 47nF/X7R,
C17
size 0402, 25 V
7
2
C14, C18
8
1
C15
9
3
C22, C25, 1uF/X7R,
C26
size 0603, 10 V
10
1
C27
11
1
C28
12
1
C29
13
2
D1, D2
BAS70J
14
1
D3
15
1
16
Manufacturer
Part Number
Cinch
135-3701-201
Schottky diodes
STMicroelectronics
BAS70JFILM
N.A.
600 V, 1A, Turbo 2
ultrafast high voltage
rectifier
STMicroelectronics
STTH1R06A
D3A
N.A.
600 V, 0.2 A super-fast
recovery diodes
ROHM Semiconductor
RFU02VSM6S
2
D4, D5
BZT585B6V2T
ZENER 6.2 V 300 mW
Diodes Incorporated
BZT585B6V2T
17
2
JP1, JP2
OPEN, soldering
pads
SMT jumper
18
3
J1, J7, J9
N.A.
19
1
J2
STRIP 1x9
20
1
J3
STRIP 1x4
21
3
J4, J5, J6
STRIP 1x3
22
1
J10
N.A.
23
1
J11
N.A.
100nF/X7R, size
0603, 25 V
1uF/X5R,
size 0805, 25 V
N.A.,
Size 0402
4.7uF/X7R,
size 0805, 25 V
N.A.
470nF/X7R
size 2225, 630 V
N.A.,
size 2225, 630 V
SMT ceramic capacitor
SMT ceramic capacitor
SMT ceramic capacitor
SMT ceramic capacitor
SMT ceramic capacitor
Electrolytic Cap,
Diam. 22 p. 10
SMT ceramic capacitor
SMT ceramic capacitor
Strip connector 2 pos,
2.54 mm
Strip connector 9 pos,
2.54 mm
Strip connector 4 pos,
2.54 mm
Strip connector 3 pos,
2.54 mm
Strip connector 3 pos,
2.54 mm
Strip connector 2 pos,
page 7/13
EVALMASTERGAN3
Bill of material
Item
Q.ty
Ref.
Value
Description
Manufacturer
Part Number
2.54 mm
2P_screw,
Terminal block T.H.
pitch 5.08 mm
2 pos, 5.08 mm
R1, R2
0R, size 0402
SMT resistor
2
R3, R6
N.A., size 0603
SMT resistor
27
2
R4, R7
47R, size 0603
SMT resistor
28
1
R8
47k, size 0603
SMT resistor
29
1
R9
10k, size 0603
SMT resistor
30
1
R10
1k, size 0603
SMT resistor
31
9
R11, R12,
R13, R18,
R19, R20, 0R, size 0603
R22, R23,
JP3
SMT resistor
32
1
R14
10R, size 0805
SMT resistor
33
1
R15
CLOSED, soldering
pads
SMT jumper
34
2
R16, R17
N.A., size 0603
SMT resistor
35
1
R21
10R, size 0603
SMT resistor
37
2
TR1, TR2
1K, 12 turns
38
3
U1, U2,
U4
74LVC1G17W5
39
1
U3
40
1
U5
24
1
J12
25
2
26
Wurth Elektronik
691213510002
BOURNS
3224W-1-102E
SINGLE SCHMITTTRIGGER BUFFER
Diodes Incorporated
74LVC1G17W5 / -7
74LVC1G14W5
SINGLE SCHMITTTRIGGER INVERTER
Diodes Incorporated
74LVC1G14W5 / -7
KF33BD-TR
Very low drop voltage
regulators with inhibit
STMicroelectronics
KF33BD-TR
MASTERGAN3
High power density halfbridge high voltage driver
with two 650 V enhanced
mode GaN HEMT
STMicroelectronics
MASTERGAN3
5 mm 12 turns
41
DB4462 - Rev 1
1
U6
Surface Mount Miniature
Trimmers
page 8/13
EVALMASTERGAN3
Revision history
Table 5. Document revision history
DB4462 - Rev 1
Date
Version
19-Apr-2021
1
Changes
Initial release.
page 9/13
EVALMASTERGAN3
Contents
Contents
1
Architecture and component placement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2
Board power-up and input connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3
Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
4
Bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
List of tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
List of figures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
DB4462 - Rev 1
page 10/13
EVALMASTERGAN3
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Connector map . . . . . . . .
Device input selection. . . .
Input signal truth table . . .
Bill of material . . . . . . . . .
Document revision history .
DB4462 - Rev 1
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7
9
page 11/13
EVALMASTERGAN3
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
DB4462 - Rev 1
EVALMASTERGAN3 – top component placement. . . . . . . . . . . . . . . .
EVALMASTERGAN3 – bottom component placement . . . . . . . . . . . . .
Supply and signal connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EVALMASTERGAN3 schematic – High density power driver . . . . . . . .
EVALMASTERGAN3 schematic – Deadtime generator and connectors .
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2
2
3
5
6
page 12/13
EVALMASTERGAN3
IMPORTANT NOTICE – PLEASE READ CAREFULLY
STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST
products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST
products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement.
Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of
Purchasers’ products.
No license, express or implied, to any intellectual property right is granted by ST herein.
Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.
ST and the ST logo are trademarks of ST. For additional information about ST trademarks, please refer to www.st.com/trademarks. All other product or service
names are the property of their respective owners.
Information in this document supersedes and replaces information previously supplied in any prior versions of this document.
© 2021 STMicroelectronics – All rights reserved
DB4462 - Rev 1
page 13/13