High power density 600V Half bridge driver with two enhancement mode GaN
HEMT
Features
•600 V system-in-package integrating half-bridge gate driver and high-voltage
power GaN transistors:
–QFN 9 x 9 x 1 mm package
–R
–I
DS(MAX)
•Reverse current capability
•Zero reverse recovery loss
•UVLO protection on low-side and high-side
•Internal bootstrap diode
•Interlocking function
•Dedicated pin for shutdown functionality
•Accurate internal timing match
•3.3 V to 15 V compatible inputs with hysteresis and pull-down
•Overtemperature protection
•Bill of material reduction
•Very compact and simplified layout
•Flexible, easy and fast design.
DS(ON)
= 150 mΩ
= 10 A
Product status link
MASTERGAN1
Product label
Application
•Switch-mode power supplies
•Chargers and adapters
•High-voltage PFC, DC-DC and DC-AC Converters
•UPS Systems
•Solar Power
Description
The MASTERGAN1 is an advanced power system-in-package integrating a gate
driver and two enhancement mode GaN transistors in half‑bridge configuration.
The integrated power GaNs have R
breakdown voltage, while the high side of the embedded gate driver can be easily
supplied by the integrated bootstrap diode.
The MASTERGAN1 features UVLO protection on both the lower and upper driving
sections, preventing the power switches from operating in low efficiency or
dangerous conditions, and the interlocking function avoids cross-conduction
conditions.
The input pins extended range allows easy interfacing with microcontrollers, DSP
units or Hall effect sensors.
The MASTERGAN1 operates in the industrial temperature range, -40°C to 125°C.
The device is available in a compact 9x9 mm QFN package.
of 150 mΩ and 650 V drain‑source
DS(ON)
DS13417 - Rev 3 - October 2020
For further information contact your local STMicroelectronics sales office.
www.st.com
1Block diagram
Driver
Driver
Logic,
interlocking,
overtemp
Level Shifter
Level Shifter
VCC UVLO
UVLO
Vbo
PGNDPVCC
OUTbBOOT
GL
GH
VCC
HIN
LIN
SD/OD
GND
OUT
VS
SENSE
HON
HOFF
LON
LOFF
R
BLEED
RGOFF
H
RGON
H
RGON
L
RGOFF
L
MASTERGAN1
Block diagram
Figure 1. Block diagram
DS13417 - Rev 3
page 2/27
2Pin description and connection diagram
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
24
23
22
21
20
19
18
17
16
31
30
29
28
27
26
25
GND
SENSE
OUT
EP1
EP2
EP3
SENSE
SENSE
SENSE
OUT
OUT
OUT
SENSE
SENSE
SENSE
SENSE
SENSE
VS
VS
VS
VS
VS
GH
OUTb
BOOT
PGND
GL
PVCC
N.C.
VCC
GND
LIN
HIN
SD/OD
N.C.
N.C.
N.C.
Figure 2. Pin connection (top view)
MASTERGAN1
Pin description and connection diagram
2.1Pin list
Table 1. Pin description
Pin NumberPin NameTypeFunction
15, 16, 17, 18, 19VSPower SupplyHigh voltage supply (high-side GaN Drain)
12, 13, 14, EP3OUTPower OutputHalf-bridge output
4, 5, 6, 7, 8, 9, 10,
11, EP2
22BOOTPower SupplyGate driver high-side supply voltage
21OUTbPower Supply
27VCCPower SupplyLogic supply voltage
SENSEPower SupplyHalf-bridge sense (low-side GaN Source)
Gate driver high-side reference voltage, used only for Bootstrap
capacitor connection. Internally connected to OUT.
DS13417 - Rev 3
page 3/27
Pin NumberPin NameTypeFunction
1PVCCPower SupplyGate driver low-side supply voltage
28, EP1GNDPower SupplyLogic ground
3PGNDPower Supply
26HINLogic InputHigh-Side driver logic input
24LINLogic InputLow-Side driver logic input
25SD/ODLogic Input-OutputDriver Shutdown input and Over-Temperature
2GLOutputLow-Side GaN gate.
20GHOutputHigh-Side GaN gate.
23, 29, 30, 31N.C.Not ConnectedLeave floating
Gate driver low-side driver reference. Internally connected to
SENSE.
MASTERGAN1
Pin list
DS13417 - Rev 3
page 4/27
3Electrical Data
3.1Absolute maximum ratings
Table 2. Absolute maximum ratings (each voltage referred to GND unless otherwise specified)
SymbolParameterTest ConditionValueUnit
V
DS
VCCLogic supply voltage-0.3 to 11V
PVCC-PGND
VCC-PGNDLogic supply vs. Low-side driver ground-0.3 to 18.3V
PVCCLow-side driver supply vs. logic ground-0.3 to 18.3V
PGNDLow-side driver ground vs. logic ground-7.3 to 11.3V
V
BO
BOOTBootstrap voltage-0.3 to 620V
CGL, CGH
RGL, RGH
I
D
S
Rout
V
i
T
J
T
s
1. PGND internally connected to SENSE.
2. OUTb internally connected to OUT.
3.
CGx < 0.08/(Pvcc^2*Fsw)-(330*10
4. TCB is temperature of case exposed pad.
5. Range estimated by characterization, not tested in production.
6. Value specified by design factor, pulse duration limited to 50 µs and junction temperature.
GaN Drain-to-Source Voltage
Low-side driver supply voltage
BOOT to OUTb voltage
Maximum external capacitance between GL and
PGND and between GH and OUTb
Minimum external pull-down resistance between
GL and PGND and GH and OUTb
Drain current (per GaN transistor)
Half-bridge outputs slew rate (10% - 90%)100V/ns
Logic inputs voltage range-0.3 to 21V
Junction temperature-40 to 150°C
Storage temperature-40 to 150°C
-12
).
MASTERGAN1
Electrical Data
TJ = 25 °C
(1)
(2)
Fsw = 2 MHz
DC @ TCB = 25°C
DC @ TCB = 100°C
Peak @ TCB = 25°C
(3)
(4), (5)
(4)
(5)
),
(4), (5), (6)
620V
-0.3 to 7V
-0.3 to 7V
680pF
6.8kΩ
9.7A
6.4A
17A
DS13417 - Rev 3
page 5/27
3.2Recommended operating conditions
Table 3. Recommended operating conditions (Each voltage referred to GND unless otherwise specified)
SymbolParameterNoteMinMaxUnit
VSHigh voltage bus0520V
VCCSupply voltage4.759.5V
PVCC-PGND
PVCC to PGND low side supply
PVCCLow-side driver supply38.5V
VCC-PVCCVCC to PVCC pin voltage-33V
PGND
Low-side driver ground
(1)
DTSuggested minimum deadtime5ns
T
IN_MIN
V
BO
Minimum duration of input pulse to obtain undistorted
output pulse
BOOT to OUTb pin voltage
BOOTBOOT to GND voltage
V
i
T
J
Logic inputs voltage range020V
Junction temperature-40125°C
1. PGND internally connected to SENSE.
2. OUTb internally connected to OUT.
3. 5 V is recommended during high-hide turn-on.
(1)
(2)
MASTERGAN1
Recommended operating conditions
4.756.5V
Best performance56.5V
-22V
120ns
4.46.5V
Best performance56.5V
(3)
0
530V
3.3
Thermal data
Table 4. Thermal data
SymbolParameterValueUnit
R
th(J-CB)
R
th(J-A)
1. The junction to ambient thermal resistance is obtained simulating the device mounted on a 2s2p (4 layer) FR4 board as
JESD51-5,7 with 6 thermal vias for each exposed pad. Power dissipation uniformly distributed over the two GaN transistors.
Thermal resistance junction to each GaN transistor exposed pad, typical1.9°C/W
High side turn on resistorI(GH) = 1 mA (source)50Ω
High side turn off resistorI(GH) = 1 mA (sink)2Ω
Low level logic threshold voltage
High level logic threshold
voltage
TJ = 25°C
Full Temperature range
TJ = 25°C
Full Temperature range
(4)
(4)
1.11.311.45
0.8
22.172.5
2.7
Logic input threshold hysteresis0.70.961.2V
Logic ‘1’ input bias currentLIN, HIN = 5 V233355μA
Logic ‘0’ input bias currentLIN, HIN = GND1μA
Input pull-down resistorLIN, HIN = 5 V90150220kΩ
Thermal shutdown unlatch
threshold
SD/OD = 5 V
OpenDrain OFF
TJ = 25°C
(5)
250330450kΩ
0.50.751V
TJ = 25°C;
81018Ω
224050mA
Open Drain low level sink
current
I
= 400 mV
OD
TJ = 25°C;
VOD = 400 mV
(5)
(5)
V
V
4.2
Over temperature protection
T
TSD
T
HYS
Shutdown temperature
Temperature hysteresis
(4)
(4)
175°C
20°C
1. VCC UVLO is referred to VCC - GND.
2. V
3. R
= V
BO
BD(on)
R
BD(on)
- V
BOOT
OUT.
is tested in the following way:
= [(VCC - V
BOOTa
) - (VCC - V
Where: Ia is BOOT pin current when V
BOOTb
BOOT
)] / [Ia - Ib]
= V
BOOTa
; Ib is BOOT pin current when V
BOOT
= V
BOOTb
4. Range estimated by characterization, not tested in production.
5. Tested on wafer.
GaN power transistor
Table 6. GaN power transistor electrical characteristics (V
SymbolParameterTest conditionMinTypMaxUnit
GaN on/off states
I
< 18 µA
V
(BR)DS
Drain-source breakdown voltage
DSS
VGS = 0 V
= 6 V; TJ = 25°C, unless otherwise specified. )
GS
(1)
650V
DS13417 - Rev 3
page 8/27
MASTERGAN1
GaN power transistor
SymbolParameterTest conditionMinTypMaxUnit
I
V
I
R
DSS
GS(th)
GS
DS(on)
Zero gate voltage drain current
Gate threshold voltage
Gate to source voltage
Static drain-source on-resistance
1. Tested on wafer.
2. Value estimated by characterization, not tested in production.
VDS = 600 V
VGS = 0 V
VDS = V
GS, ID
VDS = 0 V
(2)
ID = 3.2 A
= 2.5 mA
TJ = 25°C
TJ = 125°C
0.7µA
(1)
1.7V
57µA
150220
(2)
330
mΩ
DS13417 - Rev 3
page 9/27
5Device characterization values
The information in Table 7 and Table 8 represents typical values based on characterization and simulation results
and are not subject to the production test.
Table 7. GaN power transistor characterization values
SymbolParameterTest conditionMinTypMaxUnit
Q
G
Q
OSS
E
OSS
C
OSS
C
O(ER)
C
O(TR)
Q
RR
I
RRM
1. C
2. C
V
V
O(ER)
DS
O(TR)
DS
Total gate charge
Output charge
Output capacitance stored energy2.7µJ
Output capacitance20pF
Effective output capacitance energy
(1)
related
Effective output capacitance time
(2)
related
Reverse recovery charge0nC
Reverse recovery current0A
is the fixed capacitance that would give the same stored energy as C
is the fixed capacitance that would give the same charging time as C
VGS = 6 V,
TJ = 25°C
V
= 0 to 400 V
DS
VGS = 0 V,
V
= 400 V
DS
V
= 0 V,
GS
VDS = 0 to 400 V
MASTERGAN1
Device characterization values
2nC
20nC
31pF
50pF
while VDS is rising from 0 V to the stated
OSS
while VDS is rising from 0 V to the stated
OSS
t
(on)
t
C(on)
t(off)
t
C(off)
t
SD
E
E
1. t
2. t
Symbol
(1)
(1)
on
off
(on)
C(on)
(2)
(2)
Table 8. Inductive load switching characteristics
ParameterTest conditionMinTypMaxUnit
Turn-on time
Crossover time (on)15ns
Turn-off time70ns
Crossover time (off)15ns
Shutdown to high/low-side propagation
delay
Turn-on switching losses12.5µJ
Turn-off switching losses2.5µJ
and t
include the propagation delay time of the internal driver
(off)
and t
are the switching times of GaN transistor itself under the internally given gate driving conditions
C(off)
VS = 400 V,
VGS = 6 V,
ID = 3.2 A
See Figure 3
70ns
70ns
DS13417 - Rev 3
page 10/27
Figure 3. Switching time definition
I
D
I
D
V
DS
V
DS
V
IN
V
IN
t
(ON)
t
(OFF)
t
C(ON)
t
C(OFF)
10%I
D
10%V
DS
10%I
D
10%V
DS
(a) turn-on
(b) turn-off
0
1
23
4
5
VDS (V)
I
D
(A)
0
10
5
15
20
25
30
TJ=25°C
4V
5V
6V
0
1
23
4
5
VDS (V)
I
D
(A)
0
4
2
6
8
10
12
TJ=125°C
4V
5V
6V
MASTERGAN1
Device characterization values
Figure 4. Typ ID vs. VDS at TJ=25°C
Figure 5. Typ ID vs. VDS at TJ=125°C
page 11/27
DS13417 - Rev 3
0
510152025
30
0.14
0.15
0.16
0.17
0.18
0.19
0.20
0.21
0.22
TJ=25°C
4V
5V
6V
ID (A)
R
DS(on)
(Ω)
0
24
6810
12
0.35
0.37
0.39
0.41
0.43
0.45
0.47
0.49
0.51
TJ=125°C
4V
5V
6V
ID (A)
R
DS(on)
(Ω)
0
1
23
4
5
VDS (V)
I
D
(A)
0
10
5
15
20
25
30
VGS=6V
TJ=25°C
TJ=50°C
TJ=75°C
TJ=125°C
TJ=100°C
Normalized R
DS(on)
(1 at 25°C)
0
1.0
0.5
1.5
2.0
2.5
3.0
Temperature (°C)
-50
-10
30
70
110
150
MASTERGAN1
Device characterization values
Figure 6. Typ R
Figure 8. Typ ID vs. V
vs. ID at TJ=25°C
DS(on)
DS
Figure 7. Typ R
Figure 9. Typ R
vs. ID at TJ=125°C
DS(on)
vs. TJ, normalized at 25°C
DS(on)
DS13417 - Rev 3
page 12/27
VSD (V)
I
S
(A)
VGS=6V
TJ=25°C
VGS=0V
0
12345678910
0
5
10
15
20
25
30
35
40
45
50
TJ=125°C
VSD (V)
I
S
(A)
0
12345678910
0
2
4
6
8
10
12
14
16
18
20
22
24
VGS=6V
VGS=0V
0
25
50
75
100
125
T
CaseBottom
(°C)
0
150
10
20
30
40
50
60
70
P
DISS
(W)
Device mounted on a 2s2p (4 layer) FR4 board as
JESD51-5,7 with 6 thermal vias for each exposed pad.
Power dissipation uniformly distributed over the two GaN transistors.
MASTERGAN1
Device characterization values
Figure 10. Typ ISD vs. VSD, at TJ=25°C
Figure 12. Safe Operating Area at TJ=25°C
Figure 11. Typ ISD vs. VSD, at TJ=125°C
Figure 13. Derating curve
DS13417 - Rev 3
page 13/27
00.5
1
1.5
2
2.5
QG (nC)
V
GS
(V)
0
2
1
3
4
5
6
400 V
100 V
7
R
DBoot
(ohm)
0
100
50
150
200
250
300
Temperature (°C)
-50
-10
30
70
110
150
MASTERGAN1
Device characterization values
Figure 14. Typ Gate Charge at TJ=25°C
Figure 15. Typ R
Dboot
vs T
J
DS13417 - Rev 3
page 14/27
6Functional description
6.1Logic inputs
The MASTERGAN1 features a half-bridge gate driver with three logic inputs to control the internal high-side and
low-side GaN transistors.
The devices are controlled through the following logic inputs:
SD/OD: Shutdown input, active low;
•
•LIN: low-side driver inputs, active high;
•HIN: high-side driver inputs, active high.
Table 9. Inputs truth table (applicable when device is not in UVLO)
Input pinsGaN transistors status
SD/ODLINHINLSHS
L
HLLOFFOFF
HLHOFFON
HHLONOFF
1. X: Don’t care
2. Interlocking
H
(1)
X
(2)
H
MASTERGAN1
Functional description
(1)
X
(2)
H
OFFOFF
OFFOFF
6.2
6.3
The logic inputs have internal pull-down resistors. The purpose of these resistors is to set a proper logic level in
case, for example, there is an interruption in the logic lines or the controller outputs are in tri-state conditions.
If logic inputs are left floating, the gate driver outputs are set to low level and the correspondent GaN transistors
are turned off.
The internal logic is able to transfer the control signal pulse longer than T
= 120 ns and introduces a very
IN_MIN
short propagation delay to output.
Bootstrap structure
A bootstrap circuitry is typically used to supply the high-voltage section. MASTERGAN1 integrates this structure,
realized by a patented integrated high-voltage DMOS, to reduce the external components.
The Boostrap integrated circuit is connected to VCC pin and is driven synchronously with the low-side driver.
The use of an external bootstrap diode in parallel to the integrated structure is possible, in particular if the
operating frequency is approximately higher than 500 kHz.
VCC supply pins and UVLO function
The VCC pin supplies current to the logic circuit, level-shifters in the low-side section and the integrated bootstrap
diode.
The PVCC pin supplies low-side output buffer. During output commutations the average current used to provide
gate charge to the high-side and low-side GaN transistors flows through this pin.
The PVCC pin can be connected either to the same supply voltage of the VCC pin or to a separated voltage
source. In case the same voltage source is used, it is suggested to connect VCC and PVCC pins by means of a
small decoupling resistance. The use of dedicated bypass ceramic capacitors located as close as possible to
each supply pin is highly recommended.
DS13417 - Rev 3
page 15/27
VCC = PVCC
VCC
thON
VCC
thOFF
UVLO VCC
0V
0V
VCC rise
LIN
GL-PGND
0V
PVCC
VCC
VCCthON
VCCthOFF
HIN
UVLO VBO
0V
0V
VBOrise
(GH-OUTB)
VBO
0V
V
BOthON
VBOthOFF
0V
VBO
MASTERGAN1
VBO UVLO protection
The MASTERGAN1 VCC supply voltage is continuously monitored by an under-voltage lockout (UVLO) circuitry
that turns both the high-side and low-side GaN transistors off when the supply voltage goes below the V
threshold. The UVLO circuitry turns on the GaN, according to LIN and HIN status, as soon as the supply voltage
goes above the V
CCthON
voltage. A V
hysteresis is provided for noise rejection purpose.
CChys
Figure 16. VCC UVLO and Low Side
CC_thOFF
6.4VBO UVLO protection
Dedicated undervoltage protection is available on the bootstrap section between BOOT and OUTb supply pins. In
order to avoid intermittent operation, a hysteresis sets the turn-off threshold with respect to the turn-on threshold.
When VBO voltage goes below V
reaches V
the HIN pin's rising edge, that activates the high side transistor's turn-on.
threshold the device returns to normal operation and the output remains off until the detection of
BOthON
BOthOFF
threshold the high-side GaN transistor is switched off. When VBO voltage
Figure 17. VBO UVLO and High Side
DS13417 - Rev 3
page 16/27
6.5Thermal shutdown
THERMAL SHUTDOWN CIRCUIT
GH/GL
OD gate
(internal)
Fast shut down
the driver outputs are switched off
disable time
SD/OD
T
TSDTHYSTTSD -
VihV
0 V
TSDVOD
TJ
t1t
2
VPU
SD/OD
FROM / TO
CONTROLLER
C
OD
THERMAL
SHUTDOWN
LOGIC
R
ON_ODRPD_SD
R
OD_ext
2
1
immediately after overtemperature
The integrated gate driver has a thermal shutdown protection.
When junction temperature reaches the T
leaving the half-bridge in 3-state and signaling the state forcing
junction temperature is below T
GaN are driven again according to inputs when SD/OD rises above Vih.
The thermal smart shutdown system gives the possibility to increase the time constant of the external RC network
(that determines the disable time after the overtemperature event) up to very large values without delaying the
protection.
temperature threshold, the device turns off both GaN transistors
Typical application diagram – Active clamp flyback
page 18/27
8Package information
In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages,
depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product
status are available at: www.st.com. ECOPACK is an ST trademark.
8.1QFN 9 x 9 x 1 mm, 31 leads, pitch 0.6 mm package information
Table 10. QFN 9 x 9 x 1 mm package dimensions
MASTERGAN1
Package information
Symbol
A
A30.10
b0.250.300.35
D8.969.009.04
E8.969.009.04
D13.303.403.50
E12.062.162.26
D21.761.861.96
E23.103.203.30
D31.701.801.90
E33.103.203.30
e0.60
K0.24
L0.350.450.55
N31
aaa0.10
bbb0.10
ccc0.10
ddd0.05
eee0.08
Min.Typ.Max.
0.900.951.00
Dimensions (mm)
Note:1.Dimensioning and tolerances conform to ASME Y14.5-2009.
2.All dimensions are in millimeters.
3.N total number of terminals.
4.Dimensions do not include mold protrusion, not to exceed 0.15 mm.
5.Package outline exclusive of metal burr dimensions.
DS13417 - Rev 3
page 19/27
Figure 21. QFN 9 x 9 x 1 mm package dimensions
TOP VIEW
SIDE
VIEW
BOTTOM VIEW
MASTERGAN1
QFN 9 x 9 x 1 mm, 31 leads, pitch 0.6 mm package information
DS13417 - Rev 3
page 20/27
9Suggested footprint
TOP VIEW
Dimensions in mm
The MASTERGAN1 footprint for the PCB layout is usually defined based on several design factors such as
assembly plant technology capabilities and board component density. For easy device usage and evaluation, ST
provides the following footprint design, which is suitable for the largest variety of PCBs.
The following footprint indicates the copper area which should be free from the solder mask, while the copper
area shall extend beyond the indicated areas especially for EP2 and EP3. To aid thermal dissipation, it is
recommended to add thermal vias under these EPADs to transfer and dissipate device heat to the other PCB
copper layers. A PCB layout example is available with the MASTERGAN1 evaluation board.
Figure 22. Suggested footprint (top view drawing)
MASTERGAN1
Suggested footprint
DS13417 - Rev 3
page 21/27
10Ordering information
Order codePackagePackage MarkingPackaging
MASTERGAN1QFN 9 x 9 x 1 mmMASTERGAN1Tray
MASTERGAN1TRQFN 9 x 9 x 1 mmMASTERGAN1Tape and Reel
MASTERGAN1
Ordering information
Table 11. Order codes
DS13417 - Rev 3
page 22/27
Revision history
Table 12. Document revision history
DateVersionChanges
15-Jul-20201Initial release.
10-Aug-20202
21-Oct-20203
Changed R
Changed Figure 1, Figure 2, Figure 13, Figure 19 and Figure 20 ; added test
conditions of some parameters in Table 2 and Table 5; updated text in
vs. ID at TJ=25°C ......................................................... 12
DS(on)
vs. ID at TJ=125°C ........................................................ 12
DS(on)
vs. TJ, normalized at 25°C................................................... 12
DS(on)
vs TJ.................................................................. 14
Dboot
DS13417 - Rev 3
page 26/27
MASTERGAN1
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.