Texas Instruments UCC25630-1EVM-291 User Manual
Using the UCC25630-1EVM-291
User's Guide
Literature Number: SLUUBQ8B
August 2017–Revised January 2017
Contents
1 Introduction......................................................................................................................... 5
2 Description.......................................................................................................................... 5
2.1 Typical Applications...................................................................................................... 5
2.2 Features................................................................................................................... 5
2.3 Using the EVM with UCC256302 ...................................................................................... 6
2.4 Using the EVM with UCC256303 ...................................................................................... 6
2.5 Using the EVM with UCC256304 ...................................................................................... 6
3 Performance Specifications................................................................................................... 7
4 UCC25630-1EVM-291 Schematic ............................................................................................ 8
5 Test Setup........................................................................................................................... 9
5.1 Test Equipment........................................................................................................... 9
5.2 Recommended Test Setup at No Load.............................................................................. 10
5.3 Recommended Test Setup With Load............................................................................... 11
6 List of Test Points .............................................................................................................. 11
7 List of Terminals ................................................................................................................ 12
8 Test Procedure................................................................................................................... 12
8.1 Equipment Shutdown .................................................................................................. 12
9 Performance Data and Typical Characteristic Curves ............................................................. 13
9.1 Efficiency................................................................................................................. 13
9.2 Load Regulation ........................................................................................................ 13
9.3 Output Turn On ......................................................................................................... 14
9.4 Load Transient ......................................................................................................... 15
9.5 Output Voltage Ripple.................................................................................................. 16
9.6 Burst Mode at Light Load.............................................................................................. 16
9.7 Voltage on Resonant Capacitor....................................................................................... 17
9.8 X-Cap Discharge........................................................................................................ 17
9.9 Bode Plot ................................................................................................................ 18
9.10 Switching Frequency vs. Load........................................................................................ 18
10 EVM Assembly Drawing and PCB Layout.............................................................................. 18
11 List of Materials ................................................................................................................. 21
Revision History.......................................................................................................................... 23
2
Table of Contents
Copyright © 2017, Texas Instruments Incorporated
SLUUBQ8B–August 2017–Revised January 2017
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1 UCC25630-1EVM-291 Schematic......................................................................................... 8
2 UCC25630-1EVM-291 Recommended Test Setup for No Load..................................................... 10
3 UCC25630-1EVM-291 Recommended Test Setup With Load....................................................... 11
4 UCC25630-1EVM-291 Efficiency ........................................................................................ 13
5 UCC25630-1EVM-291 Load Regulation ................................................................................ 13
6 Output Turn On at 390 VDC with Full Load (10 A) .................................................................... 14
7 Output Turn On at 390 VDC with No Load ............................................................................. 14
8 No Load (0 A) to Full Load (10 A) Transient (Ch1 = I
9 Full Load (10 A) to No Load (0 A) Transient (Ch1 = I
10 Output Voltage Ripple at V
11 Burst Mode at Vin= 390-V and 100-mA Load (Ch3 = V
12 Voltage on Resonant Capacitor (Vin= 390-V and 10-A Load, Ch1 = V
13 X-Cap Discharge ........................................................................................................... 17
14 Bode Plot at V
15 Switching Frequency vs. Load (V
16 UCC25630-1EVM-291 Top Layer Assembly Drawing (Top View)................................................... 19
17 UCC25630-1EVM-291 Bottom Layer Assembly Drawing (Bottom View)........................................... 19
18 UCC25630-1EVM-291 Top Copper (Top View)........................................................................ 20
19 UCC25630-1EVM-291 Bottom Copper (Top View).................................................................... 20
List of Figures
; Ch3 = V
out
; Ch3 = V
out
= 390-V and 10-A Load ................................................................. 16
in
; Ch4 = LO).............................................. 16
out
= 390 V and 10 A Load ................................................................................ 18
in
= 390 V)............................................................................ 18
in
)................................................ 15
out
)................................................ 15
out
; Ch4 = LO)........................... 17
RES
List of Tables
1 UCC25630-1EVM-291 Specifications..................................................................................... 7
2 UCC25630-1EVM-291 Typical No Load and Standby Power ......................................................... 7
3 Test Points .................................................................................................................. 11
4 Terminals.................................................................................................................... 12
5 UCC25630-1EVM-291 List of Materials ................................................................................. 21
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List of Figures
3
WARNING
General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
Always follow TI’s setup and application instructions, including use of all interface components within their
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://support/ti./com for further information.
Save all warnings and instructions for future reference.
Failure to follow warnings and instructions may 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 suitable qualified, you should
immediately stop from further use of the HV EVM.
1. Work Area Safety
1. Keep work area clean and orderly.
2. Qualified observer(s) must be present anytime circuits are energized.
3. Effective barriers and signage must be present in the area where the TI HV EVM and its interface
electronics are energized, indicating operation of accessible high voltages may be present, for the
purpose of protecting inadvertent access.
4. 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.
5. Use stable and nonconductive work surface.
6. Use adequately insulated clamps and wires to attach measurement probes and instruments. No
freehand testing whenever possible.
2. Electrical Safety
As a precautionary measure, it is always a good engineering practice to assume that the entire EVM
may have fully accessible and active high voltages.
1. De-energize the TI HV EVM and all its inputs, outputs and electrical loads before performing any
electrical or other diagnostic measurements. Revalidate that TI HV EVM power has been safely
de-energized.
2. With the EVM confirmed de-energized, proceed with required electrical circuit configurations,
wiring, measurement equipment connection, and other application needs, while still assuming the
EVM circuit and measuring instruments are electrically live.
3. After EVM readiness is complete, energize the EVM as intended.
WARNING: WHILE THE EVM IS ENERGIZED, NEVER TOUCH THE EVM OR ITS ELECTRICAL
CIRCUITS AS THEY COULD BE AT HIGH VOLTAGES CAPABLE OF CAUSING ELECTRICAL
SHOCK HAZARD.
3. Personal Safety
1. Wear personal protective equipment (for example, latex gloves or safety glasses with side shields)
or protect EVM in an adequate lucent plastic box with interlocks to protect 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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4
List of Tables
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1 Introduction
This EVM, UCC25630-1EVM-291, is used to help evaluate the UCC256301 LLC control device in digital
TV SMPS, AC-DC power adapter, LED lighting, etc. applications and then to aid their design. The EVM is
a standalone LLC resonant half-bridge DC-DC power converter. The EVM, UCC25630-1EVM-291, can be
used as it is delivered without additional work to evaluate an LLC resonant half-bridge DC-DC converter.
This user’s guide provides basic evaluation instruction from a viewpoint of system operation in standalone
LLC resonant half-bridge DC-DC power converter.
2 Description
UCC25630-1EVM-291 is an EVM for an LLC resonant half-bridge DC-DC power converter with LLC
controller UCC256301. UCC25630-1EVM-291 accepts DC line input from 340 VDC to 410 VDC, AC input
voltage from 85 VAC to 264 VAC, and a nominal output of 12 VDC with a full-load output power of 120 W,
or a full output current of 10 A.
NOTE: This EVM does not have an input fuse, and relies on an input current limit from its input
voltage source.
User's Guide
SLUUBQ8B–August 2017–Revised January 2017
Using the UCC25630-1EVM-291
2.1 Typical Applications
• Digital TV SMPS
• AC-DC Power Adapters
• Enterprise Server Applications
• LED Lighting Applications
2.2 Features
• Hybrid Hysteretic Controlled LLC Resonant Half-Bridge DC-DC Power Conversion
• DC Line Input from 340 VDC to 410 VDC
• AC Input Voltage from 85 VDC to 264 VAC
• Regulated 12-VDC Output, from No-Load to Full-Load
• Full-Load Power of 120 W, or Full-Load Current of 10 A
• High Efficiency
• Optimized Low Power Features Enable Extremely Low Standby Power
• Advanced Burst Mode with Adaptive Threshold
• Improved Capacitive Region Avoidance Scheme
• Adaptive Dead-Time
• X-Capacitor Discharge
• Over Temperature, Output Over Voltage, and Three Level Over Current Protections
• Test Points to Facilitate Device and Topology Evaluation
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Using the UCC25630-1EVM-291
5
Description
2.3 Using the EVM with UCC256302
To use this EVM with UCC256302:
• Replace U1 with UCC256302
• Remove D1, D2
• Connect TP10 to TP5
2.4 Using the EVM with UCC256303
UCC25630-1EVM-291 is designed for UCC256301. With a slightly modification, this EVM can be used for
UCC256303. To use this EVM with UCC256303:
• Replace U1 with UCC256303
• Remove R11, D4
• Connect pin1 (HV) of U1 to PGND
• Connect external bias (11.25V - 26V) to TP21
2.5 Using the EVM with UCC256304
To use this EVM with UCC256304:
• Replace U1 with UCC256304
• Change R4 to 44.2 kΩ
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Using the UCC25630-1EVM-291
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3 Performance Specifications
Table 1. UCC25630-1EVM-291 Specifications
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
INPUT CHARACTERISTICS
DC voltage range 340 390 410 VDC
AC voltage range 85 264 VAC
AC voltage frequency 47 63 Hz
Input DC UVLO On 320 VDC
Input DC UVLO Off 140 VDC
Input DC current Input = 340 VDC, full load = 10 A 0.383 A
Input DC current Input = 390 VDC, full load = 10 A 0.331 A
Input DC current Input = 410 VDC, full load = 10 A 0.315 A
OUTPUT CHARACTERISTICS
V
I
OUT
OUT
Output voltage No load to full load = 10 A 12 VDC
Output load current 340 to 410 VDC 10 A
Output voltage ripple 390 VDC and full load = 10 A 130 mVpp
SYSTEM CHARACTERISTICS
Switching frequency 53 160 kHz
Peak efficiency 390 VDC, load = 8 A 92.9%
Operating temperature Natural convection 25 ºC
Performance Specifications
Table 2. UCC25630-1EVM-291 Typical No Load and Standby Power
VIN= 390 V
INPUT POWER (mW) OUTPUT POWER (mW) POWER LOSS (mW)
39.7 0 39.7
163.7 103.0 60.6
295.0 201.2 93.8
421.7 299.0 122.7
548.0 401.6 146.4
674.0 498.6 175.4
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Using the UCC25630-1EVM-291
7
~
3
+
1
~
2
4
D3
GBU8J-BP
1uF
C3
1uF
C4
MURA160T3G
D1
MURA160T3G
D2
0.47µF
C6
HV1VCC
3
BLK
4
FB
5
ISNS6VCR7BW8LL/SS
9
LO
10
GND
11
RVCC
12
HB
14
HO
15
HS
16
U1
UCC25630-1DDB
470µF
C20
470µF
C21
470µF
C22
470µF
C23
TP4
TP1
TP3
TP5
TP2
TP10
TP7
TP12
TP11
TP23
HS2
HS1
PGND
SGND
PGND
PGND
EARTH
PGND
HS3
HS4
SGND
SGND
Q1
SPW20N60CFD
Q2
SPW20N60CFD
10pF
C29
DNP
0.047µF
C28
10.0k
R22
SGND
PGND
147k
R25
16.9k
R26
SGND
1
2 3
U4
TLVH431AQPK
6.04k
R20
2.2
R16
2.2µF
C18
LO
HO
HO
LO
HS
HS
1
2
4
3
U2
VO618A-3
42.2k
R17
10.0k
R18
PGND
3.9pF
C13
2.2µF
C12
4.7µF
C15
4.99M
R1
4.99MR24.99M
R3
140k
R4
PGND
BLK
BLK
PGND
0.022µF
C7
PGND
TP19
120µF
C16
0.15µF
C17
220pF
C5
TP6
RV1
MOV-14D621K
12V Vout
85V - 264V AC Input
TP8
TP9
22µF
C24
0.022µF
C8
1.5 µF
C2
402k
R15
732k
R14
357
R13
PGND
PGND
1.65k
R10
1.65k
R9
0
R24
TP17
TP18
10.0
R5
10.0
R6
5.11k
R7
5.11k
R8
10.0M
R28
TP13
60V
D4
6.04k
R23
NC8NC
11
5
1103
1279
6
NC2NC
4
T1
J2
J3
+
-
+
-
150pF
C11
TP20
TP16
TP15
1
2
4
3
U3
VO618A-3
PGND
2.00k
R19
SGND
J4
External disable
22µF
C25
22µF
C26
22µF
C27
123
D6
STPS41H100CTY
123
D7
STPS41H100CTY
D5
ES1JAF
47µF
C1
J1
10.0M
R27
10.0M
R12
10.0M
R29
TP22
1.65k
R11
J5
3300pF
C30
DNP
1.00
R30
D8
1N4148W-7-F
D9
1N4148W-7-F
TP14
TP21
4.7µF
C14
0
R32
10pF
C19
DNP
10.0k
R21
D10
MMSZ5234B-7-F
0.015µF
C10
150pF
C9
1.00
R31
3
4
NC1NC
2
NC5NC
6
50µHL1
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UCC25630-1EVM-291 Schematic
4 UCC25630-1EVM-291 Schematic
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8
Using the UCC25630-1EVM-291
Figure 1. UCC25630-1EVM-291 Schematic
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