ug484: si828x-hb-evb user’s guide - silabs.com
TRANSCRIPT
UG484: Si828x-HB-EVB User’s Guide
The Si828x-HB-EVB (Si828x Half-Bridge EVB) is a versatile plat-form for demonstrating the features of the Si828x with SiC/IGBTdevices in a half-bridge circuit configuration. The board includesthe Si8285 to drive the high-side switch and an Si8284 to drive thelow-side switch.The Si8284 has an integrated dc-dc circuit that operates with an external MOSFET anda transformer to generate two pairs of isolated positive and negative voltages to powerboth the Si8285 and the Si8284.
The Si828x-HB-EVB has a “non-overlap” circuit to take PWM signal input from a single-channel function generator to produce complimentary PWM signals with programabledead time control to drive the inputs of the Si8285 and Si8284 gate drivers. The inputcircuit can also be configured to operate with two channel function generators to drivethe input of the Si8285 and Si8284 directly.
There are terminals on the outputs of the half-bridge power circuit that can be arrangedto support double pulse (switching loss), crosstalk, and Si828x DESAT short circuit pro-tection tests. Also, the board can be configured to operate with an external inductor (notincluded) in half-bridge buck or boost operation for dv/dt and dc-dc efficiency testing.
The board has connections for current and voltage probes to support data collectionduring tests. Operating the board is simple with the assistance of the LED indicators(RDY, /FLT), current sensor (not included), voltage measurement (BNC, SMA) connec-tors, and the /FLT reset button.
KEY FEATURES
• Half-bridge demonstration board for SiC/IGBT
• Operates up to 1 kV DC-Rail input• Demonstrates half-bridge operations
(double pulse, buck, boost)• Demonstrates desaturation protection• Demonstrates adjustable soft shutdown
capability• Onboard “non-overlap” circuit to convert
single PWM signal into complementarysignals with independent adjustabledeadtime
• Demonstrates Si8284 integrated dc-dc togenerate all necessary voltages to powerboth high- and low-side gate drivers
• Supports IGBT/SiC in TO-247 packagesin standard 3-pin and 4-pin configurationswith Kelvin Source connection
• Supports gate current booster option
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com1 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 1
Table of Contents1. Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Si828x-HB-EVB Connections for Testing . . . . . . . . . . . . . . . . . . . . . 62.1 Input Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Input Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62.2.1 Single PWM Input . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.2.2 Direct PWMs Connection to Si8285 and Si8281 . . . . . . . . . . . . . . . . . 7
3. Scope Probe Connections and DESAT Configurations . . . . . . . . . . . . . . . . 83.1 Gate, VDS, and Low-Side Current Monitors . . . . . . . . . . . . . . . . . . . . 8
3.2 DESAT Monitor/Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4. Test Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94.1 Double Pulse Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1.1 Double Pulse Test on Low-Side Switching Device . . . . . . . . . . . . . . . . .104.1.2 Double Pulse Test on High-Side Switching Device . . . . . . . . . . . . . . . .10
4.2 Cross Talk Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
4.3 DESAT Shorted Circuit Test . . . . . . . . . . . . . . . . . . . . . . . . .114.3.1 DESAT Shorted Circuit Test on Low-Side Switching Device . . . . . . . . . . . . .114.3.2 DESAT Shorted Circuit Test on High Side Switching Device . . . . . . . . . . . . .12
4.4 Buck/Boost DCDC Testing . . . . . . . . . . . . . . . . . . . . . . . . . .124.4.1 Si828x-HB-EVB in Buck DC-DC Operation . . . . . . . . . . . . . . . . . . .134.4.2 Si828x-HB-EVB in Boost DC-DC Operation . . . . . . . . . . . . . . . . . . .13
5. Current Booster Option . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6. Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com2 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 2
1. Schematics
PWM2
D115
1N4148WR342
2.2K
GATE1
J114
BNC
J115
BNC
Driv ers _Off
Function Genera tor
Primary Bias
PWM -
PWM1
JP101
2
3
DSAT1
VMID2
C112
10uF
R101
100
TP101DSAT1WHITE
TP109DSAT2WHITE
/RST
D114
1N4148W
R4061M
R4071M
R1302.2K
R4091M
R4081M
C12622uF
VDDA
R4101M
Buck-Out_Boos t-In
HV_Rail+
DSAT2
GATE2
VMID2
GATE2
TP106VMID1WHITE
R3391K
PWM +
J109
J103
J110
HV_Rail+
Driver 2
Driver2
/FLT
RDY
VD
DB
2
VDDA
IN +
VDDP
DSAT2
GATE2
VMID2
/RST
IN -
VD
DB
1
VS
SB
1
VM
ID1
J111
VMID1
Vout
VMID1
J101
GATE1
J112 J113
R333 0
R334 0
Driv ers _Off
R343 0
C104
0.1uF
Driver1
Driver1
/FLT
RDY
VDDA
IN +
DSAT1
GATE1
VMID1
/RST
IN -
VS
SB
1
VD
DB
1
R113
10K
R344
0
R10510K
Ctrl_Loop
DCDC control
VDDA
PWM -
Buck-Out_Boos t-In
HV Rail -
VMID2
VDDB2
TP121
PWM+ WHITE
R10310K
R335
10K
R33610K
Q1
C3M0016120D
D
G
S
Q2 C3M0016120DD
G
S
Q3
C3M0016120K
D
G
S
3
Q4
C3M0016120K
D
G
S
3
C118
10µF
C102
10000pF
R325
10.0
R4111M
R4121M
C119
10µF
C12110µF
R4131M
VDDB2
Buck-Out_Boos t-In
VDDA
R3370
R338
0
RST/
VDDA
PWM -
VDDA
L101
10uH
J105
HV Rail -
J106
C113270pF
C101
0.1uF
R11410K
TP105
GND_PRI
BLACK
C111270pF
TP120GND_SECBLUE
TP107WHITE
TP113
GND_PRIBLACK
VMID2
HV Rail -
TP102Rail VoltageWHITE
D104
D110
TO-247/264 HEAT SINK
U4TO-247/TO-264_HEATSINK
21
D105RED
D111RED
R1202.2K
TP114BLUE
J108
TP108COMPWHITE
J107
VDDP
TP104
GND_PRI
BLACK
B101nonoverlap_gen
VOA
VOB
VDDA
PWM +
PWM -
J102
123
C103
0.1uF
TP118
GND_PRI
BLACKTP119
GND_SECBLUE
TP112VMID2WHITE
R108
10K
R1062.2K
R111100
TP117
GND_PRI
BLACK
TP116
GND_PRIBLACK
S101MOMENTARY
C105
0.1uF
R1192.2K
R1072.2K
IDS Current Sens e
VDDP
TP115BLUE
C18010uF
VDDA
HV_Rail+
VDDB2
D101
US1K
D102
US1K
D107
US1K
D108
US1K
JP9
1
2
3
TP111CTRL_RAMP
WHITE
Gate Drv 2
Gate Drv 1
R424
10
Figure 1.1. Si828x-HB- EVB Half-Bridge Circuit
UG484: Si828x-HB-EVB User’s Guide • Schematics
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com3 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 3
C31210uF
TP309GATE2
T1
UTB02286S
16
11
14
9
8
7
6
3
1
2
R3301.0
R319150K
R3178.66K
C3110.1uF
C3140.1uF
C31510uF
R320200K
R323
4.02
VDDA
C313
470pF
C30610uF
C309
10uF
C307
0.1uF
C310
0.1uF
VMID2
TP305VSNS2
TP308COMP2
TP306VSSBx
TP307VDDBx
VH
VL
VDDB2
RDY
/FLT
VDDP
IN +
VDDA
VMID2
GATE2
DSAT2
/RST
C319
0.1uF
C316
0.1uF
R313
1.0
C320
2.2uF
D305
24V
R311
0.1
C318
TP304VMID2
VDDB2
IS307
R321 0.1
IS304I_VDDPx
IN -
C321
10pF
C322
10pF
R331
1.0
ISOLATION
U301
Si8281CD-IS
VDDA4
VH15
CLMP13
VSW2
GNDP1
NC18
VDDP3
DSAT17
VSNS20
/RST6
/FLT7
VDDB16
GNDA5
RDY8
COMP19
VL14
IN+9
IN-10
VMID12
VSSB11
C308
10uF
VSSB2
R332
1.0
VSSB1
D310
MBR0580S1
D306
MBR0580S1
D309
MBR0580S1
D302
MBR0580S1VDDB_IC1
D30324V
R327
100R328
100 CLMP2
VMID2
VSSB
VMID2
C301
10uF
C302
0.1uF
C304
0.1uF
C303
10uF
VMID1
D311
R345
100
Q6
TP301VDDB1
R346
30
TP302VMID1
TP303VSSB2
VSSB2
R301
1.0
C317
2.2uF
R306
1.0
IS308
R324
1.0
Figure 1.2. Low-Side Si8284 Gate Driver (Driver 2) with Integrated DC-DC
CLMP
VMID
VSSB
TP201VSNSx
C2020.1uF
C20110uF
R204
1.0
R2034.02
VDDA
VL
ISOLATION
U201
Si8285CD-A-IS
/RST4
CLMP11
VSSB9
VDDA2
GNDA1
VDDB14
NC3
VH13
NC16
RDY6
IN+7
VL12
/FLT5
IN-8
DSAT15
VMID10
VH
VDDB1
RDY
/FLT
IN +
VDDA
VMID1
GATE1
DSAT1
/RST
VSSB
C207
0.1uF
C203
0.1uF
Add Rx05 to ground VSSB
VDDB1
IS201
R201 0.1
VMID
IN -
C212
10pF
R208
100
R202
4.7K
R207
100
VSSB1
R2050CLMP
C211
0.1uF
C205C204
2.2uF
C208
2.2uF
R210
100
D201
MBR1H100SF
Q5
IS202R21130
Figure 1.3. High-Side Si8285 Gate Driver (Driver 1)
UG484: Si828x-HB-EVB User’s Guide • Schematics
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com4 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 4
VOB
VOA
PWM +
C401nF
C421nF
U9BCD74AC04M
34
JP47
HEADER 1x3
1
2
3
VDDA
PWM -
VDDA
U9CCD74AC04M
56
U9DCD74AC04M
98
U9ECD74AC04M
1110
U9FCD74AC04M
1312
VDDA
U9ACD74AC04M
1 2
14
7
VDDA
R45
2K
1 3
2
R46
2K
1 3
2
C41
0.1uF
C39
0.1uF
J P4 Se lec tionsExterna l Function Genera tor 1-2Onboard Controlle r 2-3Idle No connec t
GN
D
U8ASN74HC00DR
1
23
147
U8BSN74HC00DR
2A4
2B5 2Y
6
U8CSN74HC00DR
3A9
3B10 3Y
8
U8DSN74HC00DR
4A12
4B13 4Y
11
R4710K
VDDA
Figure 1.4. Non-Overlap Dead Time Generator Circuit
HV Rail -
Buck-Out_Boos t-In
PWM -
VDDA
VDDB2
VMID2
C1162200pF
C12222nF
U108
PS2911
C124 22nFC1234.7uFR404 330K
R126
221K
R1271K
R1243.16K
R128499
D113
0.49V
R125
249KVDDA
VMID2
C1251uF
R11522K
U107
LT4430
Vin1
GND2
OC3
FB4
COMP5
OPTO6
Buck-Out_Boos t-In
C1274.7uF
R403
2K1 3
2TP123WHITE
TP122WHITE
TP124WHITE
C2160.047uF
TP113
GND_PRIBLACK
VMID2
C1150.1uF
C20910pFU106
TPS40200
RCSSCOMPFB GND
GDRVISNSVDDR116 33K
R118
1K
R4051M
R341
10K
VDDA
TP111PWM - WHITE
C210
10000pF
Figure 1.5. Control Loop for Buck Converter (Not Installed)
UG484: Si828x-HB-EVB User’s Guide • Schematics
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com5 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 5
2. Si828x-HB-EVB Connections for Testing
Figure 2.1. Si828x-HB-EVB Input Power and Input Signals
DANGER! This board may contain high voltages of up to 1000 V.Do not touch the board after the high-voltage section has been energized!
2.1 Input Power
The Si828x-HB-EVB is powered by applying VDDP = 5 V (± 10%) to pin 3 (+) and Pin 2 (–) of the J102 connector. The Si8281 withintegrated dc-dc generates voltages to power both the Si8281 and Si8285 gate drivers. The RDY green LEDs (D104, D110) are lit whenproper VDDA, VDDBs, and VSSBs (VSSB is a negative voltage polarity) are present. There are test points to check the VDDB andVSSB voltage levels (reference to VMID). The VDDB and VSSB voltage levels can be adjusted by selecting the R319 and R317 values.
VDDB − VSSB = 1 . 05 × R319R317 + 1
The ratio between VDDB and VSSB voltages is determined by the T1 transformer turns ratio between the two secondary windings (seeUMEC UTB02286S transformer data sheet for details).
VDDB = VDDB − VSSB ×W7 − 8
W7 − 8 +W6 − 7
2.2 Input Signals
The Si828x-HB-EVB has flexible PWM input signal connections to support all testing configurations.
UG484: Si828x-HB-EVB User’s Guide • Si828x-HB-EVB Connections for Testing
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com6 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 6
2.2.1 Single PWM Input
J103 (SMA) provides connection for single PWM input to drive both Si8285 and Si8281. The onboard nonoverlapped circuit comprisesof U8 and U9 generates complimentary PWM signals to drive Si8281 and Si8285. The potentiometers R45 and R46 provide dead timeadjustment controls (both pots are set for 170 ns dead time at the factory). Below are connections for J47, J9 and J10 to support singlePWM input operation (as shown in Figure 2.1 Si828x-HB-EVB Input Power and Input Signals on page 6).• J103 (SMA): Input PWM signal• J47: pin 1 to pin 2• J9: pin 1 to pin 2• J10: pin 1 to pin 2
2.2.2 Direct PWMs Connection to Si8285 and Si8281
SMA connectors J109 and J110 provide PWM input connections to the IN+ of the Si8285 (high-side gate driver) and Si8281 (low-sidegate driver), respectively. Dual channel function generator with proper setting (dead time...) should be used to drive both gate driverssimultaneously. The J9 and J10 connections to support direct PWMs connections to J109 and J110 are listed below:• J109 (SMA): Si8285 IN+• J110 (SMA): Si8281 IN+• J9: Pin 2 to Pin 3• J10: Pin 2 to Pin 3
It is also possible to drive one gate driver directly from the function generator while keeping the second gate driver in the off state byplacing a jumper on J9 or J10 to keep the IN+ at the logical low level. The J9 and J10 jumper connections to connect the IN+ signal toGND are listed below:• J9: Pin 2 to Pin 1 (high-side SI8285 driver)• J10: Pin 2 to Pin 1 (low-side Si8281 driver)
UG484: Si828x-HB-EVB User’s Guide • Si828x-HB-EVB Connections for Testing
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com7 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 7
3. Scope Probe Connections and DESAT Configurations
Figure 3.1. Si828x-HB- EVB Scope Probe and DESAT Connections
3.1 Gate, VDS, and Low-Side Current Monitors
The Si828x-HB-EVB has the following connections to support voltage and current measurements• J107 (SMA), top-side Si8285 gate (bottom mounted, requires isolated probe)• J108 (SMA), low-side Si8281 gate (bottom mounted)• J115, high-side VDS (bottom mounted BNC, requires isolated probe)• J114, low-side VDS (bottom mounted BNC)• J111, low-side Isense; recommending T&M Research (0.005V/A) SDN-005 BNC (not included)
3.2 DESAT Monitor/Disable
The two pin headers IS202 and IS308 are used to provide scope probe connections for DESAT monitors or for DESAT disable control• IS202 top-side Si8285 DESAT: Pin 1: DESAT1, Pin 2: VMID1; DESAT1 is disabled when Pin 1 is shorted to Pin 2• IS308 low-side Si8281 DESAT: Pin 1: DESAT2, Pin 2: VMID2; DESAT2 is disabled when Pin 1 is shorted to Pin 2
UG484: Si828x-HB-EVB User’s Guide • Scope Probe Connections and DESAT Configurations
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com8 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 8
4. Test Configurations
The Si828x-HB-EVB has configurable connections to support most half-bridge performance tests for both top and bottom switchingdevices.
4.1 Double Pulse Test
The Si828x-HB-EVB can be configurated to evaluate the power switching devices in half bridge double pulse test at different currentlevels. By adjusting the switching on time and the time between the PWM pulses, the Device Under Test (DUT) can be controlled andmeasured over the full range of operating conditions. In this test, the PWM signal is injected directly to the IN+ of the first gate driverto operate its switching device while the IN+ of the second gate driver is shorted to GND to keep its switching device in the off state.The body diode of the off state switching device works in conjunction with the active switching device to provide realistic switchingcharacteristics of the half bridge circuit.
Figure 4.1. Si828x-HB- EVB Connections for Double Pulse Test
UG484: Si828x-HB-EVB User’s Guide • Test Configurations
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com9 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 9
4.1.1 Double Pulse Test on Low-Side Switching Device
Figure 4.1 Si828x-HB- EVB Connections for Double Pulse Test on page 9 provides connections for the double pulse test for thelow-side switching device.
Gate driver power:• Connect 5 V to J102.
DC-Rail input:• Connect DC-Rail voltage between J101–J106.• Connect J113 to J101 to increase the DC-Rail bypass cap from 10 µF to 20 µF.
PWM input signal:• Connect PWM input to J110 SMA connector.• JP9: Jumper between Pin 2–3 to short Si8285 IN+ to GND.• JP10: No jumper.
Inductor:
Connect inductor (air core preferred) with appropriate value from 25 µH to 75 µH between J101–J112 (keep the inductor at least twofeet away from Si828x-HB-EVB and test instrumentation to avoid interferences).
Oscilloscope connections:
Figure 4.1 Si828x-HB- EVB Connections for Double Pulse Test on page 9 shows probe scope connections for this test. Also, see3.1 Gate, VDS, and Low-Side Current Monitors for a list of scope probe connections for voltage and current measurements.
4.1.2 Double Pulse Test on High-Side Switching Device
Connections for double pulse test on high-side switching device are similar to the connections for testing the low-side switching device(as described in 4.1.1 Double Pulse Test on Low-Side Switching Device) except for the following connections:
PWM input signal:• Connect PWM input to J109 SMA connector.• JP9: No jumper.• JP10: Jumper between Pins 2–3 to short Si8281 IN+ to GND.
Inductor:Connect inductor (air core preferred) with appropriate value between J112–J106 (keep the inductor at least two feet away fromSi828x-HB-EVB and test instrumentation to avoid interference).
4.2 Cross Talk Testing
Data for the crosstalk test can be collected during the double pulse test described in 4.1 Double Pulse Test. Crosstalk data is thevoltage spike on the gate of the off-state device (J107 or J108) during switching operations. This voltage spike provides information onhow the gate driver copes with the dv/dt induced Miller current during switching operation.
UG484: Si828x-HB-EVB User’s Guide • Test Configurations
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com10 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 10
4.3 DESAT Shorted Circuit Test
The Si828x-HB-EVB has connections to support DESAT shorted circuit test on either the low-side or high-side switching device. Duringtest, a PWM signal is injected directly to the IN+ of the low-side or high-side switching device (the first device) while a short connectionis placed across the D-S terminals of the second device. When a PWM signal turns on the first switching device, there is a largeshoot-through current originated from the + terminal of the DC-Rail across the first switching device and the short on the second devicetoward the negative terminal of the DC-Rail. The DESAT circuit of the gate driver must work effectively to protect the first switchingdevice from this short condition. DESAT detection response time is adjustable through the value of the R130 and R342 resistors whilesoft shutdown speed is adjustable through the value of the R211 and R346 resistors (manufactory default resistor value is 30 Ω). See"AN1288: Si828x External Enhancement Circuits" for more details.
Figure 4.2. Si828x-HB- EVB Probe Connections DESAT Shorted Circuit Test
4.3.1 DESAT Shorted Circuit Test on Low-Side Switching Device
4.3 DESAT Shorted Circuit Test provides connections for the double pulse test for the low-side switching device.
Gate driver power:• Connect 5 V to J102.
DC-Rail:• Connect DC-Rail voltage between J101–J106.• Screw bus wire between J101, J112 and J113 to increase the DC-Rail bypass cap from 10 µF to 20 µF and to place short on the
high-side switching device.
PWM input signal:• Connect PWM input to J110 SMA connector.• JP9: place jumper between Pins 2–3 to short Si8285 IN+ to GND.• JP10: no jumper.
Oscilloscope connections: 4.3 DESAT Shorted Circuit Test shows probe scope connections for this test. See 3.1 Gate, VDS, andLow-Side Current Monitors for a list of probe scope connections for voltage and current measurements.
UG484: Si828x-HB-EVB User’s Guide • Test Configurations
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com11 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 11
4.3.2 DESAT Shorted Circuit Test on High Side Switching Device
Connections for DESAT test on high side switching device are similar to the connections for testing the low side switching device (asdescribed in 4.3.1 DESAT Shorted Circuit Test on Low-Side Switching Device) except for the following connections:
DC-Rail:• Connect DC-Rail voltage between J101–J106.• Screw bus wire between J101, J113 to increase the DC-Rail bypass cap from 10 µF to 20 µF.• Solder a wire across the D-S terminals of the low-side switching device as indicated by Item #9 of Figure 4.2 Si828x-HB- EVB Probe
Connections DESAT Shorted Circuit Test on page 11.
PWM input signal:• Connect PWM input to J109 SMA connector.• JP9: No jumper.• JP10: Jumper between Pins 2–3 to short Si8281 IN+ to GND.
4.4 Buck/Boost DCDC Testing
The Si828x-HB-EVB can be configured to operate with an external inductor in dc-dc buck or boost operation. The two bulk filtercapacitors, C118 and C119, can operate as input or output caps depending on whether a buck or boost configuration is used. The ratingof the external inductor must be properly selected to support the operating voltages, output loading, and switching frequency. Whenoperating at high output power, a heat sink with proper insulation and clip must be installed to dissipate heat from the two switchingdevices. Air flow may be required on the heat sink for very-high-power operation.
Figure 4.3. Si828x-HB-EVB Buck/Boost DC-DC Operation
UG484: Si828x-HB-EVB User’s Guide • Test Configurations
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com12 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 12
4.4.1 Si828x-HB-EVB in Buck DC-DC Operation
Figure 4.3 Si828x-HB-EVB Buck/Boost DC-DC Operation on page 12 shows the connections for operating the Si828x-HB-EVB in buckmode.
Gate driver power: Connect 5 V to J102.
Inductor: Connect inductor between J112–J113.
DC-Rail input DC1: connect DC-Rail voltage between J101-J106
DC output, DC2: buck mode dc output
PWM input signal: see 2.2.1 Single PWM Input and 2.2.2 Direct PWMs Connection to Si8285 and Si8281 for two methods ofconnecting PWM signal to the Si828x-HB-EVB. Asynchronous and synchronous buck operation are possible by using proper PWMsignals combines with the jumper setting on JP9 and JP10
Oscilloscope connections: Figure 4.3 Si828x-HB-EVB Buck/Boost DC-DC Operation on page 12 shows scope probe connections forthis test. Also, see 3.1 Gate, VDS, and Low-Side Current Monitors for a list of probe scope connections for voltage and currentmeasurements.
4.4.2 Si828x-HB-EVB in Boost DC-DC Operation
The connections for the Si828x-HB-EVB to operate in boost mode operation is the same as connection for the buck mode operation(see 4.4.1 Si828x-HB-EVB in Buck DC-DC Operation). The only difference is the swapping of the dc input and dc output connection asshown below:
DC-Rail input DC2: connect DC-Rail voltage between J101–J106
DC output, DC1: boost mode dc output
UG484: Si828x-HB-EVB User’s Guide • Test Configurations
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com13 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 13
5. Current Booster Option
The Si828x-HB-EVB has VH, VL, MCLP, VMID, VDDB, and VSSB test points that can be connected to an external current boosterdaughter card. The gate resistors can be removed to insert the current booster circuit between the gate driver and the SiC. Thisoption increases the current drive capability of the gate driver to more than 15 A. This circuit is optional and available on request. See"AN1288: Si828x External Enhancement Circuits" for more information on the Si828x current booster circuit.
RSS4.02
TPV?VMID
VDDB
VH
VL
M_CLMP
VSSB
GATE
Q3ZXTP2027FTA
D1
RB160MM-30TF
D21N4148W
RB4100
R1
10
R2
20
Q1ZXTN2010ZTA
Q2ZXTP2012ZTA
CP
CN
RB3 100
B
Thick Traces
RH3.0
RL3.0
VSSB
VDDB
C110uF
C20.1uF
C510uF
C60.1uF
C310uF
C40.1uF
D31N4148W
Q4ZXTP2027FTA
Figure 5.1. Current Booster Circuit
UG484: Si828x-HB-EVB User’s Guide • Current Booster Option
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com14 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 14
6. Bill of Materials
Table 6.1. Si828x-HB-EVB Bill Of Materials
Reference Description Manufacturer ManufacturerPart Number
C39, C41, C203, C207, C302,C304, C307, C310, C316, C319
Capacitor, 0.1 µF, 25 V, ±20%,X7R, 0603 Venkel C0603X7R250-104M
C40, C42 Capacitor, 1 nF, 100 V, ±10%,X7R, 0603 Venkel C0603X7R101-102K
C101, C103, C104, C105 Capacitor, 0.1 µF, 1000 V,±10%, X7R, 1825 AVX 1825AC104KAT1A
C111, C113 Capacitor, 270 pF, 50 V, ±10%,X7R, 0603 Kemet C0603C271K5RACTU
C112, C180 Capacitor, 10 µF, 50 V, ±20%,X7R, 1210 Venkel C1210X7R500-106M
C118, C119, C121 Capacitor, 10 µF, 1000 V, ±5%,PolyFilm, PTH Vishay MKP1848S61010JY2B
C126 Capacitor, 22 µF, 25 V, ±10%,X7R, 1210 Venkel C1210X7R250-226M
C201, C308, C315 Capacitor, 10 µF, 10 V, ±20%,X7R, 1206 Venkel C1206X7R100-106M
C202, C211, C311, C314 Capacitor, 0.1 µF, 10 V, ±10%,X7R, 0402 Venkel C0402X7R100-104K
C204, C208, C317, C320 Capacitor, 2.2 µF, 25 V, ±20%,X7R, 0805 Venkel C0805X7R250-225M
C205, C318 Capacitor, 1 nF, 100 V, ±10%,X7R, 0603 Venkel C0603X7R101-102K
C212, C321, C322 Capacitor, 10 pF, 50 V, ±0.5 pF,C0G, 0603 Venkel C0603C0G500-100D
C301, C303, C306, C309, C312 Capacitor, 10 µF, 25 V, ±20%,X7R, 1210 Venkel C1210X7R250-106M
C313 Capacitor, 470 pF, 200 V, ±20%,X7R, 0805 Venkel C0805X7R201-471M
D101, D102, D107, D108 Diode, Switch, Ultra Fast, 800V, 1.0 A, SMA Diodes Inc. US1K-13-F
D104, D110 LED, Green, 0805 Lite-On Inc. LTST-C170GKT
D105, D111 LED, Red, 631 nM, 30 mA, 2 V,54 mcd, 0805 Lite-On Tech LTST-C170KRKT
D114, D115 Diode, Fast, 100 V, 2 A,SOD123 Diodes Inc. 1N4148W
D201, D311 Diode, Schottky, 100V, 1A,SOD123 On Semi MBR1H100SF
D302, D306, D309, D310 Diode, Schottky, 80 V, 500 mA,SOD123 Diodes Inc. MBR0580S1
D303, D305 Diode, Zener, 24 V, 1000 mW,SMA Diodes Inc. SMAZ24-13-F
UG484: Si828x-HB-EVB User’s Guide • Bill of Materials
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com15 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 15
Reference Description Manufacturer ManufacturerPart Number
IS201, IS202, IS304, IS307,IS308
Header, 2x1, 0.1in pitch, TinPlated Samtec TSW-102-07-T-S
JP9, JP10, JP47 Header, 3x1, 0.1in pitch, TinPlated Samtec TSW-103-07-T-S
J101, J105, J106, J112, J113 CONN, Term Screw, 10-32,PTH Keystone Electronics 8174
J102 CONN, Term Block 3POS, 5.08mm, RT PCB Phoenix Contact 1729131
J103, J109, J110 CONN, SMA 50 Ω, Straight,PTH Johnson Components 142-0701-201
J107, J108 CONN SMA Jack R/A 50 ΩSMD Amphenol RF 132136-12
J114, J115 CONN, BNC, Test Lead, 4in.Leads , PTH Mueller Electric Co. BU-5200-A-4-0
L101 Inductor, 1210 TDK NLCV32T-100K-PF
PCB1 PCB, Bare Board, Si8281-HPWR-ENG REV 1.0 Skyworks SI828XTE_SIC-HV PCB
Q1, Q2 SiC, 1200 V, 115 A, 16 mΩ,TO-247 3-pin CREE C3M0016120D
Q3, Q4 SiC, 1200 V, 115 A, 16 mΩ,TO-247 4-pin CREE C3M0016120K
Q5, Q6 Transistor, PNP, –60 V, 600 mA,SOT23 NXP Semiconductors PMBT2907A
R45, R46 Trim pot, 2 kΩ, 1T, Top ADJ,SMD Murata PVG3A202C01R00
R47, R108, R114 Resistor, 10 kΩ, 1/16W, ±5%,Thick Film, 0402 Venkel CR0402-16W-103J
R101, R111 Resistor, 100 Ω, 1/10W, ±1%,Thick Film, 0805 Venkel CR0805-10W-1000F
R103, R105, R113 Resistor, 10 kΩ, 1/8 W, ±1%,Thick Film, 0805 Venkel CR0805-8W-1002F
R106, R107, R119, R120 Resistor, 2.2 kΩ, 1/10 W, ±5%,Thick Film, 0805 Venkel CR0805-10W-222J
R130, R342 Resistor, 2.2 kΩ, 1/10 W, ±1%,Thick Film, 0603 Yageo RC0603FR-072K2L
R201, R311, R321 Resistor, 0.1 Ω, 1/2 W, ±1%,Thick Film, 1210 Venkel LCR1210-R100F
R202 Resistor, 4.7 kΩ, 1/10 W, ±1%,Thick Film, 0603 Venkel CR0603-10W-4701F
R203, R323 Resistor, 4.02 Ω, 1/4 W, ±1%,Thick Film, 1206 Venkel CR1206-4W-4R02F
R204, R324 Resistor, 1.0 Ω, 1/4 W, ±1%,Thick Film, 1206 Venkel CR1206-4W-1R00F
R205 Resistor, 0 Ω, 2 A, Thick Film,0805 Venkel CR0805-10W-000
UG484: Si828x-HB-EVB User’s Guide • Bill of Materials
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com16 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 16
Reference Description Manufacturer ManufacturerPart Number
R207, R208, R327, R328 Resistor, 100 Ω, 1/10 W, ±1%,Thick Film, 0603 Venkel CR0603-10W-1000F
R210, R345 Resistor, 100 Ω, 1/16 W, ±1%,Thick Film, 0603 Venkel CR0603-16W-1000F
R211, R346 Resistor, 30 Ω, 1/8 W, ±1%,Thick Film, 0805 Yageo RC0805FR-0730RL
R301, R306, R313, R330,R331, R332
Resistor, 1.0 kΩ, 1/4 W, ±5%,Thick Film, 1206 Venkel CR1206-4W-1R0J
R317 Resistor, 8.66 kΩ, 1/16 W, ±1%,Thick Film, 0603 Venkel CR0603-16W-8661F
R319 Resistor, 150 kΩ, 1/10 W, ±1%,Thick Film, 0603 Panasonic ERJ-3EKF1503V
R320 Resistor, 200 kΩ, 1/10 W, ±1%,Thick Film, 0805 Venkel CR0805-10W-2003F
R325 Resistor, 10.0 Ω, 2 W, ±1%,Thick Film, 2512 Venkel CR2512-2W-10R0FT-W
R333, R334, R337, R338,R343, R344
Resistor, 0 Ω, 4 A, Thick Film,1210 Venkel CR1210-4W-000
R335, R336 Resistor, 10 kΩ, 1/16 W, ±1%,Thick Film, 0603 Venkel CR0603-16W-1002F
R339 Resistor, 1 kΩ, 1/10 W, ±1%,Thick Film, 0805 Venkel CR0805-10W-1001F
R406, R407, R408, R409,R410, R411, R412, R413
Resistor, 1 MΩ, 1/8 W, ±1%,Thick Film, 1206 Venkel CR1206-8W-1004F
R424 Resistor, 249 kΩ, 1/4 W, ±0.1%,ThinFilm, 1206 Panasonic ERA-8AEB2493V
S101 Switch, PB, NO, Momentary, 6mm, PTH Panasonic EVQ-PAD04M
TP101, TP102, TP106, TP107,TP108, TP109, TP111, TP112,TP121, TP201, TP202, TP203,TP204, TP205, TP206, TP301,TP302, TP303, TP304, TP305,TP306, TP307, TP308, TP309,TP310, TP311, TP312, TP313,
TP314
Testpoint, White, PTH Kobiconn 151-201-RC
TP104, TP105, TP113, TP116,TP117, TP118 Testpoint, Black, PTH Kobiconn 151-203-RC
TP114, TP115, TP119, TP120 Testpoint, Blue, PTH Kobiconn 151-205-RC
T1 Transformer, 1.5 µH, 10%,3750VAC ISOL. UMEC UTB02286S
U4 Heatsink, TO-247, Aluminum Ohmite C40-058-VE
U8 IC, NAND, Quad, 2 Input, SO14 TI SN74HC00DR
U9 IC, Inverter, Hex, SO14 TI CD74AC04M
U201 IC, 4 Amp Isodriver, 12 V UV-LO, 5 kV, SOW16 Skyworks Si8285CD-A-IS
UG484: Si828x-HB-EVB User’s Guide • Bill of Materials
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com17 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 17
Reference Description Manufacturer ManufacturerPart Number
U301 IC, 4 A Isodriver with Isovolt,SO20 WB Skyworks Si8281CD-IS
J114, J115 CONN, BNC, Test Lead, 4 in.Leads , PTH Mueller Electric Co. BU-5200-A-4-0
Not Installed Components
J111 CONN, Jack BNC VERT 10 mΩcurrent sense T&M Research SDN-414-01
C102, C210 Capacitor, 10000 pF, 1000 V,±10%, X7R, 1825 AVX 1825AC103KAT1A
C115 Capacitor, 0.1 µF, 25 V, ±10%,X7R, 0603 Venkel C0603X7R250-104K
C116 Capacitor, 2200 pF, 50 V, ±10%,X7R, 0402 Venkel C0402X7R500-222K
C122, C124 Capacitor, 22 nF, 25 V, ±5%,C0G, 0805 Venkel C0805C0G250-223J
C123, C127 Capacitor, 4.7 µF, 16 V, ±10%,X5R, 0805 Venkel C0805X5R160-475K
C125 Capacitor, 1 µF, 50 V, ±1%,C0G, 0805 Venkel C0805C0G500-105F
C209 Capacitor, 10 pF, 50 V, ±0.5 pF,C0G, 0603 Venkel C0603C0G500-100D
C216 Capacitor, 0.047 µF, 100V,±10%, X7R, 0805 Venkel C0805X7R101-473K
D113 Diode, Schottky, 40 V, 1.0 A,SOD123 ST Semiconductor STPS140Z
R115 Resistor, 22 kΩ, 1/8 W, ±1%,Thick Film, 0805 TE Connec. CRGCQ0805F22K
R116 Resistor, 33 kΩ, 1/16 W, ±1%,Thick Film, 0603 Venkel CR0603-16W-3302F
R118 Resistor, 1K, 1/8W, ±1%, ThickFilm, 0805 Venkel CR0805-8W-1001F
R124 Resistor, 3.16 kΩ, 1/8 W,±0.1%, ThinFilm, 0805 Panasonic ERA-6AEB3161V
R125 Resistor, 249 kΩ, 1/10 W, ±1%,Thick Film, 0603 Panasonic ERJ-3EKF2493V
R126 Resistor, 221 kΩ, ¼ W, ±1%,Thick Film, 1206 Yageo RC1206FR-07221KL
R127 Resistor, 1 kΩ, 1/10 W, ±1%,Thick Film, 0805 Venkel CR0805-10W-1001F
R128 Resistor, 499 Ω, 1/4W, ±1%,ThinFilm, 0805 Stackpole Elec. RNCP0805FTD499R
R341 Resistor, 10 kΩ, 1/16 W, ±1%,Thick Film, 0603 Venkel CR0603-16W-1002F
R403 Trim pot, 2 K, 1T, Top ADJ,SMD Murata PVG3A202C01R00
UG484: Si828x-HB-EVB User’s Guide • Bill of Materials
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com18 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 18
Reference Description Manufacturer ManufacturerPart Number
R404 Resistor, 330K, 1/8W, ±1%,Thick Film, 0805 TE Connec. CRGCQ0805F330K
R405 Resistor, 1M, 1/8W, ±1%, ThickFilm, 1206 Venkel CR1206-8W-1004F
TP111, TP122, TP123, TP124 Testpoint, White, PTH Kobiconn 151-201-RC
TP113 Testpoint, Black, PTH Kobiconn 151-203-RC
U106 Voltage Mode Controller, 8-PinSOIC TI TPS40200
U107 LT4430, Opto-Coupler Driver,3V-20V Linear T/AD LT4430ES6#TRMPBF
U108 Photocoupler, 4-Pin Ultra Small CEL PS2911-1
Table 6.2. Si828x Current Booster Circuit Bill of Materials
Reference Description Manufacturer ManufacturerPart Number
C1, C3, C5 Capacitor, 10 µF, 50 V, ±20%,X7R, 1210 Venkel C1210X7R500-106M
C2, C4, C6 Capacitor, 0.1 µF, 50 V, ±10%,X7R, 0603 Yageo CC0603KPX7R9BB104
D1 Diode, Schottky, 30 V, 1 A,SOD123 Rohm RB160MM-30TF
D2, D3 Diode, Fast, 100 V, 2 A,SOD123 Diodes Inc. 1N4148W
Q1 Transistor, NPN, 60 V, 5 A, LOSAT, SOT89 Diodes Inc. ZXTN2010Z
Q2 Transistor, PNP, –60 V, –4.3A,SOT89 Zetex ZXTP2012Z
Q3, Q4 Transistor, PNP, –60 V, –4 A,SOT23 Diodes Inc. ZXTP2027FTA
RB3, RB4 Resistor, 100 Ω, 1/10 W, ±1%,Thick Film, 0805 Venkel CR0805-10W-1000F
RL,RH Resistor, 3.0 Ω, 1 W, ±1%,Thick Film, 2010 Vishay CRCW20103R00FKEFHP
RSS Resistor, 4.02 Ω, 1/4 W, ±1%,ThickFilm, 1206 Venkel CR1206-4W-4R02F
R1 Resistor, 10 Ω, 1/4 W, ±1%,Thick Film, 1206 Venkel CR1206-4W-10R0F
R2 Resistor, 20 Ω, 1/4 W, ±1%,Thick Film, 1206 Venkel CR1206-4W-20R0FT
UG484: Si828x-HB-EVB User’s Guide • Bill of Materials
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com19 Rev. 0.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 19
Copyright © 2021 Skyworks Solutions, Inc. All Rights Reserved.Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes.
No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks’ Terms and Conditions of Sale.
THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A PARTICULAR PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. SKYWORKS DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury, death, physical or environmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper use or sale.
Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of Skyworks’ published specifications or parameters.
Skyworks, the Skyworks symbol, Sky5®, SkyOne®, SkyBlue™, Skyworks Green™, Clockbuilder®, DSPLL®, ISOmodem®, ProSLIC®, and SiPHY® are trademarks or registered trademarks of Skyworks Solutions, Inc. or its subsidiaries in the United States and other countries. Third-party brands and names are for identification purposes only and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference.
Portfoliowww.skyworksinc.com
Qualitywww.skyworksinc.com/quality
Support & Resourceswww.skyworksinc.com/support
Connecting Everyone
and Everything,
All the Time
Skyworks Solutions, Inc. | Nasdaq: SWKS | [email protected] | www.skyworksinc.comUSA: 781-376-3000 | Asia: 886-2-2735 0399 | Europe: 33 (0)1 43548540 |