SLUUDA3 May   2025 UCC25661

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specifications
    4. 1.4 Device Information
    5.     General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  7. 2Hardware
    1. 2.1 Test Setup
      1. 2.1.1 Test Equipment
      2. 2.1.2 Recommended Test Setup
    2. 2.2 Using the EVM with UCC256612
    3. 2.3 Using the EVM with UCC256613
    4. 2.4 Test Points
    5. 2.5 Terminals
    6. 2.6 Test Procedure
      1. 2.6.1 Equipment Shutdown
  8. 3Implementation Results
    1. 3.1 Performance Data and Typical Characteristic Curves
      1. 3.1.1  UCC25661EVM-128 Standalone Standby and Light Load Power
      2. 3.1.2  Efficiency, Load Regulation, Switching Frequency vs Output Current
      3. 3.1.3  Startup
      4. 3.1.4  Enhanced ZCS Avoidance During Soft Start
      5. 3.1.5  Thermal Image
      6. 3.1.6  Output Voltage Ripple
      7. 3.1.7  Load Transient Response
      8. 3.1.8  Loop Response
      9. 3.1.9  Steady State
      10. 3.1.10 X-Capacitor Discharge
  9. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials
  10. 5Additional Information
    1.     Trademarks

4.3 Bill of Materials

Table 4-1 Bill of Materials
DesignatorQTYDescriptionPart Number
!PCB1 1 Printed Circuit Board Printed Circuit Board
5VP, VAUX, VCC, Vin, Vout 5 Test Point, Multipurpose, Red, TH 5010
BLK, HG, HV, HV_diode, I_opt, ISNS, L, LG, LL, N, OVP_OTP, 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, 330 pF, 50 V, +/- 1%, C0G/NP0, 0603 C1608C0G1H331F080AA
C14 1 CAP, CERM, 150 pF, 630 V, +/- 5%, C0G/NP0, 1206 GRM31A5C2J151JW01D
C15, C29 2 CAP, CERM, 2.2 uF, 35 V, +/- 10%, X7R, 0805 C2012X7R1V225K085AC
C16 1 120 µF 35 V Aluminum - Polymer Capacitors Radial, Can 30mOhm 5000 Hrs @ 105°C RPA0808121M035K
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, 3300 pF, 50 V, +/- 5%, C0G/NP0, 1206 GRM3195C1H332JA01D
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
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, 0.01 uF, 50 V, +/- 5%, X7R, 0402 C0402C103J5RACTU
C33 1 CAP, CERM, 2.2 uF, 100 V, +/- 10%, X7S, 1206 C3216X7S2A225K160AB
C36 1 CAP, AL, 100 uF, 25 V, +/- 20%, TH ECA-1EHG101
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
C46 1 CAP, CERM, 4700 pF, 100 V, +/- 5%, C0G/NP0, 0603 C0603C472J1GAC7867
C47 1 1 µF ±10% 25V Ceramic Capacitor X7R 1206 (3216 Metric) C1206R105K3RACTU
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, 23 V, 500 mW, SOD-123 DDZ23-7
D12 1 Diode, Schottky, 50 V, 2 A, SMA B250A-13-F
D13 1 Diode, Zener, 16 V, 500 mW, AEC-Q101, SOD-123 BZT52C16-7-F
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 2 Power Transistor MOSFET N-Channel Enhancement 600V 21A 3-Pin D2PAK T/R IPB60R105CFD7ATMA1
Q5 1 Transistor, NPN, 80 V, 1 A, AEC-Q101, SOT-89 BCX56-16,115
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
R10 1 RES, 4.70 k, 1%, 0.25 W, 1206 RC1206FR-074K7L
R14 1 RES, 576 k, 0.1%, 0.1 W, 0603 RT0603BRD07576KL
R15 1 RES, 0, 5%, 0.063 W, 0402 RC0402JR-070RL
R16 1 RES, 9.09 k, 1%, 0.1 W, 0603 RC0603FR-079K09L
R17 1 RES, 0, 0.75 W, AEC-Q200 Grade 0, 1206 CRCW12060000Z0EAHP
R18 1 RES, 6.04 k, 0.1%, 0.1 W, 0603 RT0603BRD076K04L
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 3 3.3 MOhms ±1% 0.25W, 1/4W Chip Resistor 1206 (3216 Metric) Automotive AEC-Q200, High Voltage Thick Film KTR18EZPF3304
R33 1 RES, 536 k, 0.1%, 0.1 W, 0603 RT0603BRD07536KL
R36 1 RES, 169 k, 0.1%, 0.1 W, 0603 RT0603BRD07169KL
R37 1 RES, 35.7 k, 0.1%, 0.1 W, 0603 RT0603BRD0735K7L
R38 1 RES, 100 k, 0.1%, 0.1 W, 0603 RT0603BRD07100KL
R39, R40, R45, R49 4 RES, 10 M, 5%, 0.25 W, AEC-Q200 Grade 0, 1206 CRCW120610M0JNEA
R46 1 NTC Thermistor 470k 0603 (1608 Metric) B57371V2474J060
R47 1 RES, 15.0 k, 0.1%, 0.1 W, 0603 RG1608P-153-B-T5
R51 1 RES, 226, 1%, 0.25 W, 1206 RC1206FR-07226RL
RT1 1 Thermistor NTC, 4.70 ohm, 20%, 15x7mm B57237S0479M000
RV1 1 VARISTOR 1200V 10KA DISC 20MM TMOV20RP750E
SGND1, SGND2, TP8, TP9 4 Test Point, Multipurpose, Black, TH 5011
T1 1 Transformer, 510 uH, TH 750344018
T2, T3 2 Terminal 70A 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 1 750kHz Wide VIN/VOUT Range LLC Controller Optimized for Light-Load Efficiency UCC256611