Texas Instruments UCC25660 Series User manual

EVM User's Guide: UCC25660EVM-064 UCC256601 UCC256602
UCC256603 UCC256604
UCC25660x Half Bridge LLC Evaluation Module
Description
The UCC25660EVM-064 assists designers to
evaluate the operation and performance of the
UCC25660x LLC Resonant controller (16-pin SOIC
package with removed pins for high voltage
clearance). This evaluation module demonstrates how
UCC25660x controls the LLC resonant half bridge
DC-DC converter to achieve high effciency through
out the load and input voltage range.
Features
• IPPC controlled (Input power proportional
control) LLC resonant half-bridge DC-DC power
conversion
• DC line input from 365 VDC to 410 VDC
• AC input voltage from 85 VDC to 265 VAC
• Regulated 12-VDC typical output
• Full-load power of 180 W, or full-load current of 15
A
• High efficiency
• Enhanced light load management:
– High frequency pulse skip for improved light
load efficiency
– Low frequency burst for reduced standby power
– Audible frequency range skip for reduced
audible noise
– User option to disable
– Integrated PFC on/off control signal
• Combined resonant current and resonant capacitor
voltage sensing through one pin
• Adaptive dead-time
• X-capacitor discharge
• Automatic capacitive region avoidance
• Adaptive soft start with minimized inrush current
• Complete sets of protections:
– Cycle-by-cycle current limit, OCP1 protection
– Configurable over power protection
– OVP, internal & external OTP
– Vin & VCC UVLO
– Inbuilt 19.5 V VCC Clamp
• Test points to facilitate device and topology
evaluation
Applications
•SMPS power supply for TV
•Industrial AC-DC adapters
•Power tools
•Medical power supply
•Multifunctional printer
•Enterprise and cinema projector
•PC power supply
•Gaming console power supply
•Lighting
UCC25660EVM-064 180W LLC Resonant DC-DC Converter (Top View)
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General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
WARNING
Always follow TI's set-up and application instructions, including use of all interface components within the
recommended electrical rated voltage and power limits. Always use electrical safety precautions to help ensure
your personal safety and those working around you. Contact TI's Product Information Center http://ti.com/
customer support for further information.
Save all warnings and instructions for future reference.
WARNING
Failure to follow warnings and instructions can result in personal injury, property damage or death
due to electrical shock and burn hazards.
The term TI HV EVM refers to an electronic device typically provided as an open framed, unenclosed printed
circuit board assembly. It is intended strictly for use in development laboratory environments, solely for qualified
professional users having training, expertise and knowledge of electrical safety risks in development and
application of high voltage electrical circuits. Any other use and/or application are strictly prohibited by Texas
Instruments. If you are not suitably qualified, you should immediately stop from further use of the HV EVM.
1. Work Area Safety:
a. Keep work area clean and orderly.
b. Qualified observers must be present anytime circuits are energized.
c. Effective barriers and signage must be present in the area where the TI HV EVM and the interface
electronics are energized, indicating operation of accessible high voltages can be present, for the
purpose of protecting inadvertent access.
d. All interface circuits, power supplies, evaluation modules, instruments, meters, scopes, and other related
apparatus used in a development environment exceeding 50Vrms/75VDC must be electrically located
within a protected Emergency Power Off EPO protected power strip.
e. Use stable and non-conductive work surface.
f. Use adequately insulated clamps and wires to attach measurement probes and instruments. No
freehand testing whenever possible.
2. Electrical Safety:
a. As a precautionary measure, a good engineering practice is to assume that the entire EVM can have
fully accessible and active high voltages.
b. De-energize the TI HV EVM and all the inputs, outputs and electrical loads before performing any
electrical or other diagnostic measurements. Revalidate that TI HV EVM power has been safely de-
energized.
c. With the EVM confirmed de-energized, proceed with required electrical circuit configurations, wiring,
measurement equipment hook-ups and other application needs, while still assuming the EVM circuit and
measuring instruments are electrically live.
d. Once EVM readiness is complete, energize the EVM as intended.
WARNING
While the EVM is energized, never touch the EVM or the electrical circuits, as the EVM or
the electrical circuits can be at high voltages capable of causing electrical shock hazard.
3. Personal Safety
a. Wear personal protective equipment e.g. latex gloves or safety glasses with side shields or protect EVM
in an adequate lucent plastic box with interlocks from accidental touch.
Limitation for safe use:
EVMs are not to be used as all or part of a production unit.
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1 Evaluation Module Overview
1.1 Introduction
The purpose of the EVM is to aid in evaluation of the UCC25660x LLC resonant controller. The EVM is a
stand-alone LLC resonant half-bridge DC-DC power converter designed to operate with DC input from 365 VDC
to 410 VDC, AC input from 85 to 265 VRMS, 47 to 63 Hz, and a nominal output of 12 VDC up to 180-W. The
EVM is delivered using a diode rectifier at the output. The user has the option to evaluate this converter with a
synchronous rectifier (SR) by populating the UCC24624 and SR FETs.
This user’s guide describes the UCC25660EVM-064 evaluation module (EVM). The user’s guide provides basic
evaluation instructions from a viewpoint of system operation of the stand-alone LLC resonant power converter.
Please read this user's guide thoroughly before applying power to this board.
1.2 Kit Contents
Table 1-1. UCC25660EVM-064 Kit Contents
Item Description Quantity
UCC25660EVM-064 PCB 1
1.3 Specifications
Table 1-2. UCC25660EVM-064 Specifications
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
INPUT CHARACTERISTICS
DC voltage range 365 390 410 VDC
AC voltage range 85 265 VAC
AC voltage frequency 47 63 Hz
Input DC UVLO On 365 VDC
OUTPUT CHARACTERISTICS
VOUT Output voltage - Normal mode Burst mode threshold to full load =
15 A
12 VDC
IOUT Output load current 365 to 410 VDC 15 A
Output voltage ripple 390 VDC and full load = 15 A 120 mVpp
SYSTEM CHARACTERISTICS
Resonant frequency 100 kHz
Peak efficiency 390 VDC, load = 8 A 93%
Operating temperature Natural convection 25 °C
1.4 Device Information
The UCC25660x is a fully featured LLC controller with integrated high-voltage gate driver. The UCC25660x has
been designed to cover a wide range of applications with specific features added to make the device easy to
design for wide input and output voltage operation needs. The device can be paired with a PFC controller to
provide a complete power system using a minimum of external components. The resulting power system is
designed to meet the most stringent requirements for standby power without the need for a separate standby
power converter.
UCC25660x implements a new control algorithm which provides a highly efficient and consistent low power and
burst mode. Both the low power and burst mode operation are designed to minimize audible noise while meeting
DoE level VI, EuP regulations. The burst power level and hysteresis are programmable and directly relate to
input power, simplifying the design and enabling wide input and output voltage operation.
The UCC25660x provides several protection features ranging from cycle-by-cycle protection, capacitive region
operation avoidance, external OVP and OTP to enhance the reliability of the LLC power stage.
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2 Hardware
2.1 Test Setup
2.1.1 Test Equipment
High Voltage DC Voltage Source: Capable of 365 VDC to 410 VDC, adjustable, with minimum power rating
500 W, or current rating not less than 1 A, with current limit function. The DC voltage source to be used must
meet IEC 60950 reinforced insulation requirement.
AC Voltage Source: Capable of single-phase output AC voltage 85 to 265 VAC, 47 to 63 Hz, adjustable, with
minimum power rating 100 W and current limit function. The AC voltage source to be used must meet IEC 60950
reinforced insulation requirement.
DC Digital Multimeter: One unit capable of 0-VDC to 450-VDC input range, four digit display preferred; and one
unit capable of 0-VDC to 20-VDC input range, four digit display preferred.
Output Load: DC load capable of receiving 0 VDC to 20 VDC, 0 A to 15 A, and 0 W to 300 W or greater, with
the capability to display information such as load current and load power.
Oscilloscope: Capable of 500-MHz full bandwidth, digital or analog: if digital, 5 Gsps, or better.
Fan: 200 to 400 LFM forced air cooling is recommended, but not required.
Recommended Wire Gauge: Capable of 25 A, or better than #14 AWG, with the total length of wire less than 8
feet (4 feet input and 4 feet return).
2.1.2 Recommended Test Setup
390V 1.00 A
12.00 V
High Voltage DC Source
Electronic Load
AC Source
Figure 2-1. UCC25660EVM-064 Test Setup Diagram
WARNING
High voltages that can cause injury exist on this evaluation module (EVM). Please make sure all
safety procedures are followed when working on this EVM. Never leave a powered EVM unattended.
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2.2 Test Points
Table 2-1 lists the EVM test points.
Table 2-1. Test Points
Test Points Description
Vin Input voltage positive terminal
HG Primary-side high side MOSFET gate, Q1
SGND1 Secondary-side ground
SGND2 Secondary-side ground
SW Primary-side switch node, or the intersection of Q1 and Q3
VCC Controller Supply input
LG Primary-side low side MOSFET gate, Q3
TP8 Primary-side ground
TP9 Primary-side ground
Vout Output voltage positive terminal
Inj Small signal injection terminal
I_opt Feedback current measurement
HV High-voltage start pin
HV_diode High-voltage start pin
5VP Regulated 5-V bias
BLK Input voltage sensing
L AC line
N AC neutral
LL Light-load burst mode thresholds
ISNS Resonant current sense
BW_OTP Bias winding voltage sense/External over temperature protection
TSET On time min and max programming/ PFC on/off logic
2.3 Terminals
Table 2-2 lists the EVM terminals.
Table 2-2. List of Terminals
Terminal Name Description
J1 VIN Input voltage positive terminal
J2 PGND Input voltage return terminal
J3 AC Input 3-pin, AC power input, 85–265 VRMS
T2 VOUT Output voltage positive terminal
T3 SGND Output voltage ground terminal
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2.4 Test Procedure
Use the following steps for the test procedure:
1. Refer to Section 2.1.2 for basic setup. The required equipment for this measurement is listed in Section
2.1.1.
2. Before making electrical connections, visually check the board to make sure there are no suspected spots of
damage.
3. Keep the High Voltage DC voltage source output off. Connect this DC source to J1 (+) and J2 (-). This DC
voltage source must be isolated and meet the IEC 60950 requirement. Set the DC output voltage within the
range specified in Table 1-2, between 365 VDC and 410 VDC; set the DC source current limit to 1 A.
CAUTION
The board has no fuse installed and relies on the external voltage source current limit to verify
circuit protection.
4. Keep the AC voltage source output off. Connect the source with AC_neutral to J3-1, AC_earth to J3-2, and
AC_line to J3-3. Isolate the AC voltage source and meet the IEC 60950 requirement. Set the AC output
voltage and frequency within the range specified in Table 1-2, between 85 and 265 VAC and 47 to 63 Hz.
Set the AC source current limit to 200 mA.
5. Connect an electronic load set to either constant-current mode or constant-resistance mode. The load range
is from 0 to 15 A.
6. If the load does not have a current or a power display, TI recommends inserting a current meter between the
output voltage and the electronic load.
7. Connect a voltage meter to Vout and SGND1/SGND2 to monitor the output voltage.
8. Turn on the AC source output.
9. Turn on the DC source output.
2.4.1 Equipment Shutdown
Shut down the equipment using the following steps:
1. Shut down the AC voltage source.
2. Shut down the DC voltage source.
3. Shut down the electronic load.
WARNING
High voltage can still be present on the resonant capacitors after turning off the DC source.
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3 Implementation Results
3.1 Performance Data and Typical Characteristic Curves
3.1.1 UCC25660EVM-064 Standalone Standby and Light Load Power
Table 3-1 lists the total standby and light load power measurement for the standalone EVM. The average input
power is measured over a 6min interval.
Table 3-1. Standalone Standby Power
IOUT (mA) VOUT (V) POUT (mW) VIN (V) PIN (mW)
0 12 0 390 51
10 12 120 390 227.6
20 12 240 390 305.88
50 12 600 390 753.71
100 12 1200 390 1516.4
3.1.2 Efficiency, Load Regulation, Switching Frequency vs Output Current
Table 3-2 gives the efficiency, load regulation, switching frequency data at various input voltage and at different
load currents.
Table 3-2. Performance Data
VIN (V) IIN (mA) PIN (W) VOUT(V) IOUT(A)
Operating
Frequency
(kHz)
Operating
Frequency Efficiency (%)
390 501.7 195.663 11.997 15 100.5 Normal 91.97191
390 433.2 168.948 11.998 13 101.4 Normal 92.32071
390 374.4 146.016 11.998 11.25 102.2 Normal 92.44021
390 366.2 142.818 11.998 11 102.36 Normal 92.40992
390 299.5 116.805 11.998 9 103.45 Normal 92.44639
390 249.9 97.461 11.998 7.5 103.9 Normal 92.32924
390 233.2 90.948 11.998 7 104.5 Normal 92.34508
390 167.61 65.3679 11.997 5 105.9 Normal 91.76522
390 126.72 49.4208 11.997 3.75 106.9 Normal 91.03201
365 537 196.005 11.995 15 88.4 Normal 91.79613
365 464.2 169.433 11.997 13 89.07 Normal 92.04877
365 401.2 146.438 11.998 11.25 89.67 Normal 92.17382
365 392 143.08 11.998 11 89.78 Normal 92.2407
365 321 117.165 11.998 9 90.48 Normal 92.16234
365 267.9 97.7835 11.998 7.5 90.99 Normal 92.02473
365 250.2 91.323 11.998 7 91.21 Normal 91.96588
365 179.6 65.554 11.998 5 92.02 Normal 91.51234
365 136.23 49.72395 11.997 3.75 92.67 Normal 90.47702
410 476.6 195.406 11.995 15 110.65 Normal 92.07752
410 412.2 169.002 11.997 13 112.27 Normal 92.28352
410 356.3 146.083 11.997 11.25 113.8 Normal 92.39011
410 348.2 142.762 11.998 11 114.14 Normal 92.44617
410 284.9 116.809 11.998 9 116.2 Normal 92.44322
410 237.7 97.457 11.997 7.5 118.14 Normal 92.32533
410 221.9 90.979 11.997 7 118.89 Normal 92.30592
410 159.05 65.2105 11.997 5 122.4 Normal 91.98672
410 120.38 49.3558 11.997 3.75 125.4 Normal 91.1519
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3.1.3 Startup
The following waveforms show the output voltage, resonant current sense resistor voltage, and low side gate
behavior during startup. 115 VAC, 60 Hz is applied initially to the AC input, then the 390 VDC input is applied to
the DC input.
Figure 3-1. No Load (0 A) Startup (Ch1 = ISNS; Ch2 = LO; Ch4 = VOUT)
Figure 3-2. Full Load (15 A) Startup (Ch1 = ISNS; Ch2 = LO; Ch4 = VOUT)
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3.1.4 Enhanced ZCS Avoidance During Softstart
The following waveforms show the resonant current sense resistor voltage, Switch node voltage during startup.
115 VAC, 60 Hz is applied initially to the AC input, then the 390 VDC input is applied to the DC input.
Figure 3-3. Full Load (15 A) Startup (Ch1 = ISNS; Ch3 = SW)
3.1.5 Thermal Image
The following images show the EVM temperature after 20min soak at full load, no forced air and 390Vdc input
applied to the DC input.
Figure 3-4. Thermal Image Top Figure 3-5. Thermal Image Top
Table 3-3. Component Temperature
Component Temperature (°C)
T1 77.3
D2 86
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3.1.6 Output Voltage Ripple
The following waveforms show the output voltage ripple with 115 VAC, 60 Hz applied to the AC input and 390
VDC applied to the DC input. The oscilloscope probe is AC coupled.
Figure 3-6. No Load (0 A) Output Ripple (Ch4 = VOUT)
Figure 3-7. Full Load (15 A) Output Ripple (Ch4 = VOUT)
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3.1.7 Load Transient Response
The following waveforms show the output voltage with 115 VAC, 60 Hz applied to the AC input and 390 VDC
applied to the DC input.
Figure 3-8. 0 A to 15 A Transient (Ch4 = VOUT ; Ch1 = IOUT)
3.1.8 Steady State
The following waveforms shows the voltage across the 10kohm(I_OPT), voltage across the resonant current
sense resistor (ISNS), switch node voltage (SW) and low side gate voltage (LO) with 115 VAC, 60 Hz applied
to the AC input and 390 VDC applied to the DC input. Figure 3-9, Figure 3-10, and Figure 3-11 shows the
waveforms during normal switching and high frequency burst mode and low frequency burst mode respectively.
Figure 3-9. Steady State Waveforms at 15 A Load (Ch1= ISNS; Ch2 = LO; Ch3 = SW; Ch4 = I_OPT)
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Figure 3-10. Steady State Waveforms at 1 A Load (Ch1= ISNS; Ch2 = LO; Ch3 = SW; Ch4 = I_OPT)
Figure 3-11. Steady State Waveforms at 0 A (Ch1= ISNS; Ch2 = LO; Ch3 = SW; Ch4 = I_OPT)
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3.1.9 X-Capacitor Discharge
The following waveform shows the X-Capacitor discharge after the AC input of 265 VAC is disconnected. 390
VDC is applied to the DC input.
Figure 3-12. X-Cap Discharge (Ch1 = Voltage across X-Cap, C40 and C41)
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4 Hardware Design Files
The following section includes hardware design files for UCC25660EVM-064. This section includes the board
level schematic, PCB layout and Bill of materials (BOM).
4.1 Schematics
1
2
J1
1
2
J2
PGND PGND
D3
PMEG10020ELRX
PGND
4
7,8
1,2,3
5,6,
Q4
CSD18511Q5A
4
7,8
1,2,3
5,6,
Q2
CSD18511Q5A
150pF
C14
PGND PGND
0
R5
VCC
PGND PGND
100V
D4
100V
D1
51.0k
R4
51.0k
R11
365V to 410V
22uF
C5
22uF
C6
22uF
C10
22uF
C11
SGND
SGND
100pF
C12
147k
R19
12V, 15A
0
R15
150pF
C25
PGND
Inj
Vout
SGND2
10.0k
R20
150pF
C23
1
2
3
100V
D5
SGNDSGND
1
2
3
100V
D2
SGND
SGND SGND SGND
I_opt
2.2uF
C15
PGND
Vin
HG
LG
SW
1000pF
C22
PGND SGND
SGND
SGND
LM = 510uH
Lr = 85uH
Npri: Naux: Nsec1: Nsec2 = 33:2:2:2
470uF
C8
470uF
C9
470uF
C3
470uF
C4
VD1
VG1
VD2
VG2
Vout
Vout
VIN
LO
HO
HS
ISNS
VCC
FB 11V
D6
SGND
100pF
C20
SGNDSGND
PGND
42.2
R1
42.2
R6
0.015uF
C1
0.015uF
C17
1.00
R3
1.00
R8
450V
68uF
C7
TP8 TP9
SGND1
IN+
0.005
R9
0.005
R12
1
2
H9
531202B02500G
1
2
H10
531202B02500G
SGND SGND
0.01uF
C26
33.2k
R22
ISNS
3
1
2
Q6
2N7002K-T1-E3
80.6k
R56
SGND
Standby_Secondary
2 1
3
TLVH431ACDBZR
U2
0
R17
9.09k
R18
2.05k
R16
1.21k
R57
4700pF
C46
10µF
C18
T3
CXS70-14-C
T2
CXS70-14-C
1
2
4
3
U1
VO618A-3
+
330uF
C16
16.9k
R23
10.0k
R21
10.0
R2
10.0
R7
1200pF
C2
1200pF
C19
1nF
C24
205
R51
1
3 4
Q1
IPB60R105CFD7ATMA1
1
3 4
Q3
IPB60R105CFD7ATMA1
2
4
6
7 8
9
10
11
12
13
14
NC
1NC 3
NC 5
T1
750320617
Figure 4-1. UCC25660EVM-064 Power Stage Schematic
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VG1
1
PGND
2
REG
3
VD1
4VSS 5
VD2 6
VDD 7
VG2 8
UCC24624DR
U5
SGND SGNDSGND SGND
Vout
VD1
VG1
VD2
VG2
1.65k
R28
1.65k
R27
1.65k
R26
1µF
C40
1µF
C41
~3
+1
~
2
-
4
420V
D10
0.47uF
C39
10M
R39
10M
R40
10M
R45
10M
R49
HV_diode HV
1
2
3
J3
EARTH PGND
5VP
PGND
PGND
600V
D7
2.20
R25
L
N
BLK
PGND PGND
5VP
VCC
ISNS
HS
LO
VIN
HO
PGND
1uF
C35
4.7uF
C30
PGND
RV1
TMOV20RP750E
t°
RT1
B57237S0479M000
1kV D8
1kV D9
2.2uF
C34
OUT
1
GND
2
IN+ 3
IN- 4
VS 5
INA180A4IDBV
U7
4.75
R41
4.75
R42
47pF
C38
IN+
0.1uF
C44
SGND SGND
5V
NC
1NC 3
IN
4OUT 5
2
GND
TPS71550DCKR
U3
0
R24
Vout 5V
SGND SGND SGND
SGND
5V
100k
R44
SGND
0.1uF
C37
SGND
100pF
C43
100pF
C42
SGND SGND
5V
2
1
3
5
4
LMV331M5/NOPB
U6
Vout
Standby_Secondary
3.01k
R50
261k
R52
5.11k
R48
1µF
C27
1µF
C28
FB
3.3M
R29
3.3M
R30
3.3M
R34
BLK
BLK
220pF
C21
5VP
TSET
TSET/PFC_OFF
15.0k
R47
R46
B57371V2474J060
PGND PGND
VCC
2.2nF
C31
BW/OTP
PGND
PGND PGND
PGND PGND
LL
5VP
15V
D11
DDZ15-7
LL
BW_OTP
35.7k
R37
0
R31
0
R32
10.0
R35
536
R53
39.2
R55
536
R54
100nF
C29
1nF
C32
191k
R38
1.00M
R14
1nF
C13
VCCP
12
5VP
8
BLK
3
BW/OTP
4
FB
5
HB 14
HO 15
HS 16
HV
1
ISNS
9LL 6
LO 11
TSET
7
GNDP 10
UCC256601DDBR
U4
140k
R36
549k
R33
0
R43
Figure 4-2. UCC25660EVM-064 Control Schematic
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4.2 PCB Layouts
Figure 4-3. UCC25660EVM-064 (Top View)
Figure 4-4. UCC25660EVM-064 (Bottom View)
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4.3 Bill of Materials
Table 4-1. Bill of Materials
Designator QTY Description Part Number
!PCB1 1 Printed Circuit Board HVP064
5VP, VCC, Vin, Vout 4 Test Point, Multipurpose, Red, TH 5010
BLK, BW_OTP, HG,
HV, HV_diode, I_opt,
ISNS, L, LG, LL, N,
SW, TSET
13
Test Point, Multipurpose, White, TH 5012
C1, C17 2 CAP, Film, 0.015 uF, 1250 V, +/- 5%, AEC-Q200 Grade 3, TH B32652A7153J000
C3, C4, C8, C9 4 CAP, AL, 470 uF, 35 V, +/- 20%, 0.03 ohm, TH UHW1V471MPD
C5, C6, C10, C11 4 CAP, CERM, 22 uF, 25 V, +/- 20%, X5R, 1206_190 C3216X5R1E226M160AB
C7 1 CAP, AL, 68 uF, 450 V, +/- 20%, TH EKXG451ELL680MMN3S
C12 1 CAP, CERM, 100 pF, 50 V, +/- 1%, C0G/NP0, 0603 06035A101FAT2A
C13 1 CAP, CERM, 1000 pF, 50 V, +/- 10%, X7R, 0603 C0603X102K5RACTU
C14 1 CAP, CERM, 150 pF, 630 V, +/- 5%, C0G/NP0, 1206 GRM31A5C2J151JW01D
C15 1 CAP, CERM, 2.2 uF, 35 V, +/- 10%, X7R, 0805 C2012X7R1V225K085AC
C16 1Cap Aluminum Lytic 330uF 35 V 20% (10 X 16 mm) Radial 5 mm
1430 mA 4000h 105C Bulk
35ZL330MEFC10X16
C18 1 CAP, CERM, 10 µF, 25 V,+/- 5%, X7R, AEC-Q200 Grade 1, 1206 C1206C106J3RACAUTO
C20 1 CAP, CERM, 100 pF, 100 V, +/- 5%, C0G/NP0, 1206 12061A101JAT2A
C21 1 CAP, CERM, 220 pF, 50 V, +/- 10%, X7R, 0603 C0603X221K5RACTU
C22 1 CAP, CERM, 1000 pF, V, +/- 20%, E, D7xT6mm CD45-E2GA102M-NKA
C24 1 CAP, CERM, 1000 pF, 100 V, +/- 5%, C0G/NP0, 1206 12061A102JAT2A
C25 1 CAP, CERM, 150 pF, 50 V,+/- 5%, C0G/NP0, 0402 885012005062
C26 1 CAP, CERM, 0.01 uF, 100 V, +/- 5%, X7R, 0603 06031C103JAT2A
C29 1 CAP, CERM, 0.1 uF, 25 V,+/- 5%, C0G/NP0, 1206 GRM31C5C1E104JA01L
C30 1 CAP, CERM, 4.7 uF, 25 V, +/- 10%, X7R, 1206 C3216X7R1E475K085AB
C31 1 CAP, CERM, 2200 pF, 50 V, +/- 10%, X7R, 0603 C0603X222K5RACTU
C32 1 CAP, CERM, 1000 pF, 50 V,+/- 5%, X7R, 0402 04025C102JAT2A
C39 1 CAP, Film, 0.47 uF, 630 V, +/- 10%, TH B32922C3474K
C40, C41 2 CAP, Film, 1 µF, X2 275 VAC, +/- 20%, TH R46KN410000P0M
D1, D4 2 Diode, Ultrafast, 100 V, 0.15 A, SOD-123 1N4148W-7-F
D2, D5 2 Diode, Schottky, 100 V, 20 A, AEC-Q101, TH STPS41H100CTY
D3 1 Diode, Schottky, 100 V, 2 A, AEC-Q101, SOD-123W PMEG10020ELRX
D7 1 Diode, Ultrafast, 600 V, 1 A, AEC-Q101, SMAF ES1JAF
D8, D9 2 Diode, P-N, 1000 V, 1 A, TH 1N4007-E3/73
D10 1 Diode, Switching-Bridge, 420 V, 8 A, TH GBU8J-BP
D11 1 Diode, Zener, 15 V, 500 mW, SOD-123 DDZ15-7
H1, H2, H3, H4 4 4824
H5, H6, H7, H8 4 1903C
H9, H10 2 531202B02500G
H13, H14 2 4708
Inj 1 Test Point, Multipurpose, Orange, TH 5013
J1, J2 2 Terminal Block, 5.08 mm, 2x1, Brass, TH ED120/2DS
J3 1 Terminal Block, 5.08 mm, 3x1, Brass, TH ED120/3DS
MP1, MP2 2 M3 Pan Head Machine Screw Phillips Drive Stainless Steel RM3X8MM-2701
MP3, MP4 2 Mounting Kit For TO-220 Heat Sinks 4880SG
Q1, Q3 2Power Transistor MOSFET N-Channel Enhancement 600 V 21 A
3-Pin D2PAK T/R
IPB60R105CFD7ATMA1
www.ti.com Hardware Design Files
SLUUCV2 – OCTOBER 2023
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UCC25660x Half Bridge LLC Evaluation Module 17
Copyright © 2023 Texas Instruments Incorporated

Table 4-1. Bill of Materials (continued)
Designator QTY Description Part Number
R1 1 RES, 42.2, 1%, 0.1 W, 0603 RC0603FR-0742R2L
R3, R8 2 RES, 1.00, 1%, 0.1 W, 0603 RC0603FR-071RL
R4, R11 2 RES, 51.0 k, 1%, 0.1 W, 0603 RC0603FR-0751KL
R5 1 RES, 0, 5%, 0.25 W, AEC-Q200 Grade 0, 1206 ERJ-8GEY0R00V
R6 1 RES, 42.2, 1%, 0.1 W, 0603 RC0603FR-0742R2L
R9, R12 2 RES, 0.005, 1%, 1.5 W, 2010 CSNL2010FT5L00
R14 1 RES, 1.00 M, 1%, 0.1 W, 0603 RC0603FR-071ML
R15 1 RES, 0, 5%, 0.063 W, 0402 RC0402JR-070RL
R16 1 RES, 2.05 k, 1%, 0.1 W, 0603 RC0603FR-072K05L
R17 1 RES, 0, 0.75 W, AEC-Q200 Grade 0, 1206 CRCW12060000Z0EAHP
R18 1 RES, 9.09 k, 1%, 0.1 W, 0603 RC0603FR-079K09L
R19 1 RES, 147 k, 1%, 0.1 W, 0603 RC0603FR-07147KL
R21 1 RES, 10.0 k, 1%, 0.1 W, 0402 ERJ-2RKF1002X
R22 1 RES, 33.2 k, 1%, 0.1 W, 0603 RC0603FR-0733K2L
R23 1 RES, 16.9 k, 1%, 0.1 W, 0603 RC0603FR-0716K9L
R25 1 RES, 2.20, 1%, 0.1 W, 0603 ERJ-3RQF2R2V
R26, R27, R28 3 RES, 1.65 k, 1%, 0.25 W, AEC-Q200 Grade 0, 1206 CRCW12061K65FKEA
R29, R30, R34 33.3 MOhms ±1% 0.25W, 1/4W Chip Resistor 1206 (3216 Metric)
Automotive AEC-Q200, High Voltage Thick Film
KTR18EZPF3304
R33 1 RES, 549 k, 1%, 0.1 W, 0603 RC0603FR-07549KL
R36 1 RES, 140 k, 1%, 0.1 W, 0603 RC0603FR-07140KL
R37 1 RES, 35.7 k, 0.1%, 0.1 W, 0603 RT0603BRD0735K7L
R38 1 RES, 191 k, 0.1%, 0.1 W, 0603 RT0603BRD07191KL
R39, R40, R45, R49 4 RES, 10 M, 5%, 0.25 W, AEC-Q200 Grade 0, 1206 CRCW120610M0JNEA
R43, R47 2 RES, 15.0 k, 0.1%, 0.1 W, 0603 RG1608P-153-B-T5
R46 1 NTC Thermistor 470k 0603 (1608 Metric) B57371V2474J060
R51 1 RES, 205, 1%, 0.25 W, 1206 RC1206FR-07205RL
RT1 1 Thermistor NTC, 4.70 ohm, 20%, 15x7mm B57237S0479M000
RV1 1 VARISTOR 1200 V 10KA DISC 20 MM TMOV20RP750E
SGND1, SGND2, TP8,
TP9 4Test Point, Multipurpose, Black, TH 5011
T1 1 TRANSFORMER- 750320617
T2, T3 2 Terminal 70 A Lug CXS70-14-C
U1 1 Optocoupler, 5.3 kV, 100-200% CTR, SMT VO618A-3
U2
1
Low-Voltage Adjustable Precision Shunt Regulator, 129 ppm /
degC, 80 mA, 0 to 70 degC, 3-pin SOT-23 (DBZ), Green (RoHS
& no Sb/Br)
TLVH431ACDBZR
U4 1750 kHz Wide VIN/VOUT Range LLC Controller Optimized for
Light Load Efficiency
UCC256601DDBR
5 Additional Information
Trademarks
All trademarks are the property of their respective owners.
Additional Information www.ti.com
18 UCC25660x Half Bridge LLC Evaluation Module SLUUCV2 – OCTOBER 2023
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Copyright © 2023 Texas Instruments Incorporated

STANDARD TERMS FOR EVALUATION MODULES
1. Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or
documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance
with the terms set forth herein. User's acceptance of the EVM is expressly subject to the following terms.
1.1 EVMs are intended solely for product or software developers for use in a research and development setting to facilitate feasibility
evaluation, experimentation, or scientific analysis of TI semiconductors products. EVMs have no direct function and are not
finished products. EVMs shall not be directly or indirectly assembled as a part or subassembly in any finished product. For
clarification, any software or software tools provided with the EVM (“Software”) shall not be subject to the terms and conditions
set forth herein but rather shall be subject to the applicable terms that accompany such Software
1.2 EVMs are not intended for consumer or household use. EVMs may not be sold, sublicensed, leased, rented, loaned, assigned,
or otherwise distributed for commercial purposes by Users, in whole or in part, or used in any finished product or production
system.
2Limited Warranty and Related Remedies/Disclaimers:
2.1 These terms do not apply to Software. The warranty, if any, for Software is covered in the applicable Software License
Agreement.
2.2 TI warrants that the TI EVM will conform to TI's published specifications for ninety (90) days after the date TI delivers such EVM
to User. Notwithstanding the foregoing, TI shall not be liable for a nonconforming EVM if (a) the nonconformity was caused by
neglect, misuse or mistreatment by an entity other than TI, including improper installation or testing, or for any EVMs that have
been altered or modified in any way by an entity other than TI, (b) the nonconformity resulted from User's design, specifications
or instructions for such EVMs or improper system design, or (c) User has not paid on time. Testing and other quality control
techniques are used to the extent TI deems necessary. TI does not test all parameters of each EVM.
User's claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects in the EVMs within ten (10)
business days after delivery, or of any hidden defects with ten (10) business days after the defect has been detected.
2.3 TI's sole liability shall be at its option to repair or replace EVMs that fail to conform to the warranty set forth above, or credit
User's account for such EVM. TI's liability under this warranty shall be limited to EVMs that are returned during the warranty
period to the address designated by TI and that are determined by TI not to conform to such warranty. If TI elects to repair or
replace such EVM, TI shall have a reasonable time to repair such EVM or provide replacements. Repaired EVMs shall be
warranted for the remainder of the original warranty period. Replaced EVMs shall be warranted for a new full ninety (90) day
warranty period.
WARNING
Evaluation Kits are intended solely for use by technically qualified,
professional electronics experts who are familiar with the dangers
and application risks associated with handling electrical mechanical
components, systems, and subsystems.
User shall operate the Evaluation Kit within TI’s recommended
guidelines and any applicable legal or environmental requirements
as well as reasonable and customary safeguards. Failure to set up
and/or operate the Evaluation Kit within TI’s recommended
guidelines may result in personal injury or death or property
damage. Proper set up entails following TI’s instructions for
electrical ratings of interface circuits such as input, output and
electrical loads.
NOTE:
EXPOSURE TO ELECTROSTATIC DISCHARGE (ESD) MAY CAUSE DEGREDATION OR FAILURE OF THE EVALUATION
KIT; TI RECOMMENDS STORAGE OF THE EVALUATION KIT IN A PROTECTIVE ESD BAG.

www.ti.com
2
3Regulatory Notices:
3.1 United States
3.1.1 Notice applicable to EVMs not FCC-Approved:
FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software
associated with the kit to determine whether to incorporate such items in a finished product and software developers to write
software applications for use with the end product. This kit is not a finished product and when assembled may not be resold or
otherwise marketed unless all required FCC equipment authorizations are first obtained. Operation is subject to the condition
that this product not cause harmful interference to licensed radio stations and that this product accept harmful interference.
Unless the assembled kit is designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must
operate under the authority of an FCC license holder or must secure an experimental authorization under part 5 of this chapter.
3.1.2 For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant:
CAUTION
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any interference received, including interference that may cause
undesired operation.
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to
operate the equipment.
FCC Interference Statement for Class A EVM devices
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to
correct the interference at his own expense.
FCC Interference Statement for Class B EVM devices
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more
of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help.
3.2 Canada
3.2.1 For EVMs issued with an Industry Canada Certificate of Conformance to RSS-210 or RSS-247
Concerning EVMs Including Radio Transmitters:
This device complies with Industry Canada license-exempt RSSs. Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this device must accept any interference, including interference that may
cause undesired operation of the device.
Concernant les EVMs avec appareils radio:
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation
est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit
accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.
Concerning EVMs Including Detachable Antennas:
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser)
gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type
and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for
successful communication. This radio transmitter has been approved by Industry Canada to operate with the antenna types
listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated.
Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited
for use with this device.