LM5155EVM-FLY

User's Guide SNVU629 – June 2019 LM5155EVM-FLY User's Guide The LM5155EVM-FLY evaluation module showcases the features and performance of the LM5155 as wide input non-synchronous flyback controller. The standard configuration is designed to provide a regulate output of 5V at 4A from an input of 18V to 36V, switching at 250 kHz. This evaluation module is designed for ease of configuration, enabling the user to evaluate many different applications on the same module. The PCB is two layers with components populated only on one side. Functionality includes programmable slope compensation, adjustable soft-start, programmable cycle-by-cycle current limit, hiccup mode short-circuit protection, and programmable line under voltage lockout. 1 2 3 4 5 6 Contents Introduction ................................................................................................................... 2 1.1 Electrical Parameters............................................................................................... 3 1.2 Configuration Points ................................................................................................ 3 Application Schematic ....................................................................................................... 4 EVM Photo.................................................................................................................... 5 Test Setup and Procedure .................................................................................................. 5 4.1 EVM Test Setup Schematic ....................................................................................... 5 4.2 Test Equipment ..................................................................................................... 5 4.3 Precautions .......................................................................................................... 6 Test Data and Performance Curves ....................................................................................... 6 5.1 Efficiency Curve ..................................................................................................... 6 5.2 Load Regulation..................................................................................................... 7 5.3 Thermal Performance .............................................................................................. 8 5.4 Steady State Waveforms .......................................................................................... 9 5.5 Start-Up Waveforms .............................................................................................. 11 5.6 Load Transient Waveforms ...................................................................................... 12 5.7 Load Short-Circuit ................................................................................................. 13 5.8 AC Loop Response ............................................................................................... 14 Design Files ................................................................................................................. 15 List of Figures 1 Application Circuit............................................................................................................ 4 2 EVM Photo 3 4 5 6 7 8 9 10 11 12 13 14 15 ................................................................................................................... 5 Test Setup ................................................................................................................... 5 Efficiency vs ILOAD ............................................................................................................ 6 Load Regulation ............................................................................................................. 7 VSUPPLY = 36V, ILOAD = 4A, No forced air cooling .......................................................................... 8 Steady State, VSUPPLY = 18V, ILOAD = 4A.................................................................................... 9 Steady State, VSUPPLY = 24V, ILOAD = 4A.................................................................................... 9 Steady State, VSUPPLY = 36V, ILOAD = 4A.................................................................................... 9 Start-Up, VSUPPLY = 18V, ILOAD = 0A ....................................................................................... 11 Start-Up, VSUPPLY = 18V, ILOAD = 4A ....................................................................................... 11 Start-Up, VSUPPLY = 24V, ILOAD = 0A ....................................................................................... 11 Start-Up, VSUPPLY = 24V, ILOAD = 4A ....................................................................................... 11 Start-Up, VSUPPLY = 36V, ILOAD = 0A ....................................................................................... 11 Start-Up, VSUPPLY = 36V, ILOAD = 4A ....................................................................................... 11 SNVU629 – June 2019 Submit Documentation Feedback LM5155EVM-FLY User's Guide Copyright © 2019, Texas Instruments Incorporated 1 Introduction www.ti.com 16 Load Transient, VSUPPLY = 18V, ILOAD = 2A to 4A ........................................................................ 12 17 Load Transient, VSUPPLY = 24V, ILOAD = 2A to 4A ........................................................................ 12 18 Load Transient, VSUPPLY = 36V, ILOAD = 2A to 4A ........................................................................ 12 19 Short Circuit Protection .................................................................................................... 13 20 Short Circuit Recovery: VSUPPLY = 36V ................................................................................... 13 21 Control Loop Response VSUPPLY = 18V, ILOAD = 4A ...................................................................... 14 22 Control Loop Response VSUPPLY = 24V, ILOAD = 4A ...................................................................... 14 23 Control Loop Response VSUPPLY = 36V, ILOAD = 4A ...................................................................... 14 24 Top Silkscreen .............................................................................................................. 15 25 Top Layer 26 Bottom Layer................................................................................................................ 15 27 Bottom Silkscreen .......................................................................................................... 15 28 LM5155EVM-FLY Schematic ............................................................................................. 16 ................................................................................................................... 15 List of Tables ......................................................................... 3 ....................................................................................................... 3 LM5155EVM-FLY Bill of Materials ....................................................................................... 17 1 Electrical Performance Standard Configuration 2 Test point description 3 Trademarks All trademarks are the property of their respective owners. 1 Introduction The LM5155EVM-FLY supports the following features and performance capabilities: • Tightly regulated output voltage of 5 V • High conversion efficiency of > 86% at full load. • Hiccup mode Short Circuit Protection • User adjustable secondary side soft-start time • 10V Auxiliary winding to power VCC pin • 250kHz Switching frequency • 2 Layer PCB with components populated on 1 side 2 LM5155EVM-FLY User's Guide SNVU629 – June 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Introduction www.ti.com 1.1 Electrical Parameters Table 1. Electrical Performance Standard Configuration Parameter Test Conditions MIN TYP MAX UNIT 18 24 36 V INPUT CHARACTERISTICS Input voltage Range VIN Operation Input voltage turn on VIN(ON) 17 V 16.5 V Output Voltage VOUT 5 V Maximum Output Current IOUT 4 A 250 kHz 86.5 % Input voltage turn off VIN(OFF) Adjusted by the UVLO/SYNC resistors OUTPUT CHARACTERISTICS SYSTEM CHARACTERISTICS Switching frequency Peak efficiency VIN =18V, IOUT = 1.8A Junction Temperature, TJ -40 150 C Transformer Specifications (Wurth 750319733) Primary Inductance 21 Turns Ratio Saturation Current (3-5):(2-1) 1:1 (3-5):(6:10) tie (6+7,9+10) 2:1 20% inductance reduction 6.2 Leakage Inductance 1.2 150 µH A 300 nH Configuration Points Table 2 indicates the available test points. These points offer simple probe points to evaluate the operation of the LM5155. Table 2. Test point description Jumper Name Description TP1 VIN TP2 VOUT+ Positive output voltage sense connection TP3 PGND Negative input voltage sense connection TP4 ISO_GND TP5 SW TP6 VOUT+ Loop response positive injection point TP7 VOUT- Loop response negative injection point TP8 AGND Analog ground connection point TP9 ISO_GND Isolated ground connection point J1 - Input power connections J2 - Output power connections J3 PGND PGOOD (pin 1) COMP (pin 2) J4 SS (pin 3) Positive input voltage sense connection Negative isolated output voltage sense connection Probe point for the switch node of the LM5155 flyback circuit Power ground connection point Probe voltage on the PGOOD pin of the LM5155 Probe voltage on the COMP pin of the LM5155 Probe voltage on the SS pin of the LM5155 VAUX (pin 4) Auxiliary winding voltage PGND (pin 5) Power ground connection SNVU629 – June 2019 Submit Documentation Feedback LM5155EVM-FLY User's Guide Copyright © 2019, Texas Instruments Incorporated 3 Application Schematic 2 www.ti.com Application Schematic The LM5155EVM-FLY is capable of multiple configurations. Figure 1 shows the standard configuration of the LM5155EVM-FLY for which the parameters in Table 1 are valid. VSUPPLY NP VLOAD NS CLOAD CIN NAUX ISO_GND VAUX RUVLOT VCC BIAS GATE CS UVLO/SYNC RUVLOB RS LM51551 PGND AGND RPULLUP FB PGOOD RT VAUX SS RLED COMP RFBT CCOMP CCOMP RCOMP RT RCOMP VREF Figure 1. Application Circuit 4 LM5155EVM-FLY User's Guide SNVU629 – June 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated EVM Photo www.ti.com 3 EVM Photo Figure 2. EVM Photo 4 Test Setup and Procedure 4.1 EVM Test Setup Schematic The correct equipment connections and measurement points are shown in Figure 3 Power Supply - + Ammeter 1 Ammeter 2 A A COM Voltmeter 1 V COM Electronic Load + - Voltmeter 2 COM V COM Figure 3. Test Setup 4.2 Test Equipment Power Supply: The input voltage source (VIN) should be a variable supply capable of 0V to 36V and source at least 5A. Multi-meters: • Voltmeter 1: Input voltage, connect from VIN to PGND • Voltmeter 2: Output voltage, connect from VOUT to ISO_GND • Ammeter 1: Input current, must be able to handle 5A. Shunt resistor can be used as needed. • Ammeter 2: Output current, must be able to handle 5A. Shunt resistor can be used as needed. Electronic Load: The load should be constant resistance (CR) or constant current (CC) capable. It should safely handle 4A at 5V. SNVU629 – June 2019 Submit Documentation Feedback LM5155EVM-FLY User's Guide Copyright © 2019, Texas Instruments Incorporated 5 Test Setup and Procedure www.ti.com Oscilloscope: 20-MHz bandwidth and AC coupling. Measure the output voltage ripple directly across an output capacitor with a short ground lead. It is not recommended to use a long-leaded ground connection due to the possibility of noise being coupled into the signal. To measure other waveforms, adjust the oscilloscope as needed. 4.3 Precautions CAUTION: Prolonged operation with low input at full power will cause heating of the diode (D1). Board surface is hot. Do not touch. Contact may cause burns. 5 Test Data and Performance Curves Figure 4 through Figure 23 present the typical performance of the LM5155EVM-FLY according to the bill of materials and the configuration described in Table 1. Based on measurement techniques and environmental variables measurements might differ slightly than the data presented 5.1 Efficiency Curve Efficiency vs I LOAD 100 90 Efficiency (%) 80 70 60 VIN = 36V VIN = 24V VIN = 18V 50 40 0 0.5 1 1.5 2 2.5 ILOAD (A) 3 3.5 4 Effi Figure 4. Efficiency vs ILOAD 6 LM5155EVM-FLY User's Guide SNVU629 – June 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Test Data and Performance Curves www.ti.com 5.2 Load Regulation VLOAD vs ILOAD 5.08 VIN = 36V VIN = 24V VIN = 18V 5.075 5.07 5.065 5.06 VLOAD (V) 5.055 5.05 5.045 5.04 5.035 5.03 5.025 5.02 5.015 5.01 0 0.4 0.8 1.2 1.6 2 2.4 ILOAD (A) 2.8 3.2 3.6 4 Load Figure 5. Load Regulation SNVU629 – June 2019 Submit Documentation Feedback LM5155EVM-FLY User's Guide Copyright © 2019, Texas Instruments Incorporated 7 Test Data and Performance Curves 5.3 www.ti.com Thermal Performance D1 Q1 Figure 6. VSUPPLY = 36V, ILOAD = 4A, No forced air cooling 8 LM5155EVM-FLY User's Guide SNVU629 – June 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Test Data and Performance Curves www.ti.com 5.4 Steady State Waveforms Figure 7. Steady State, VSUPPLY = 18V, ILOAD = 4A Figure 8. Steady State, VSUPPLY = 24V, ILOAD = 4A SNVU629 – June 2019 Submit Documentation Feedback LM5155EVM-FLY User's Guide Copyright © 2019, Texas Instruments Incorporated 9 Test Data and Performance Curves www.ti.com Figure 9. Steady State, VSUPPLY = 36V, ILOAD = 4A 10 LM5155EVM-FLY User's Guide SNVU629 – June 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Test Data and Performance Curves www.ti.com 5.5 Start-Up Waveforms Figure 10. Start-Up, VSUPPLY = 18V, ILOAD = 0A Figure 11. Start-Up, VSUPPLY = 18V, ILOAD = 4A Figure 12. Start-Up, VSUPPLY = 24V, ILOAD = 0A Figure 13. Start-Up, VSUPPLY = 24V, ILOAD = 4A Figure 14. Start-Up, VSUPPLY = 36V, ILOAD = 0A Figure 15. Start-Up, VSUPPLY = 36V, ILOAD = 4A SNVU629 – June 2019 Submit Documentation Feedback LM5155EVM-FLY User's Guide Copyright © 2019, Texas Instruments Incorporated 11 Test Data and Performance Curves 5.6 www.ti.com Load Transient Waveforms Figure 16. Load Transient, VSUPPLY = 18V, ILOAD = 2A to 4A Figure 17. Load Transient, VSUPPLY = 24V, ILOAD = 2A to 4A 12 LM5155EVM-FLY User's Guide SNVU629 – June 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Test Data and Performance Curves www.ti.com Figure 18. Load Transient, VSUPPLY = 36V, ILOAD = 2A to 4A 5.7 Load Short-Circuit Figure 19. Short Circuit Protection Figure 20. Short Circuit Recovery: VSUPPLY = 36V SNVU629 – June 2019 Submit Documentation Feedback LM5155EVM-FLY User's Guide Copyright © 2019, Texas Instruments Incorporated 13 Test Data and Performance Curves 5.8 www.ti.com AC Loop Response Control Loop Response VSUPPLY = 18V, ILOAD = 4A 60 180 40 120 20 60 0 0 -20 -60 -40 -120 -60 500 700 1000 2000 3000 5000 7000 10000 20000 30000 Frequency (Hz) 50000 100000 200000 300000 Phase (deg) Gain (dB) Gain Phase -180 500000 Loop Figure 21. Control Loop Response VSUPPLY = 18V, ILOAD = 4A Control Loop Response VSUPPLY = 24V, ILOAD = 4A 60 180 40 120 20 60 0 0 -20 -60 -40 -120 -60 500 700 1000 2000 3000 5000 7000 10000 20000 30000 Frequency (Hz) 50000 100000 200000 300000 Phase (deg) Gain (dB) Gain Phase -180 500000 Loop Figure 22. Control Loop Response VSUPPLY = 24V, ILOAD = 4A 14 LM5155EVM-FLY User's Guide SNVU629 – June 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Design Files www.ti.com Control Loop Response VSUPPLY = 36V, ILOAD = 4A 60 180 40 120 20 60 0 0 -20 -60 -40 -120 -60 500 700 1000 2000 3000 5000 7000 10000 20000 30000 Frequency (Hz) 50000 100000 200000 300000 Phase (deg) Gain (dB) Gain Phase -180 500000 Loop Figure 23. Control Loop Response VSUPPLY = 36V, ILOAD = 4A 6 Design Files Figure 24. Top Silkscreen Figure 25. Top Layer Figure 26. Bottom Layer Figure 27. Bottom Silkscreen SNVU629 – June 2019 Submit Documentation Feedback LM5155EVM-FLY User's Guide Copyright © 2019, Texas Instruments Incorporated 15 Design Files www.ti.com Figure 28. LM5155EVM-FLY Schematic 16 LM5155EVM-FLY User's Guide SNVU629 – June 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Design Files www.ti.com Table 3. LM5155EVM-FLY Bill of Materials Designator Qu Value ant ity Description Package Reference Part Number C1 1 680pF CAP, CERM, 680 pF, 100 V, +/10%, X7R, 0603 0603 GRM188R72A68 MuRata 1KA01D C2 1 100uF CAP, Polymer Hybrid, 100 uF, 50 V, +/- 20%, 28 ohm, 10x10 SMD 10x10 EEHZC1H101P Panasonic C3 1 0.1uF CAP, CERM, 0.1 uF, 50 V, +/- 20%, X7R, 0805 0805 08055C104MAT 2A AVX C4, C5 2 1uF CAP, CERM, 1 uF, 50 V, +/- 10%, X7R, 0805 0805 08055C105KAT 2A AVX C6 1 4.7uF CAP, CERM, 4.7 uF, 50 V, +/- 10%, X7R, 1206 1206 C3216X7R1H47 5K160AC TDK C7, C8 2 270uF CAP, Aluminum Polymer, 270 uF, 25 D10xL12.7mm V, +/- 20%, 0.027 ohm, D10xL12.7mm SMD PCV1E271MCL1 Nichicon GS C9, C10 2 10uF CAP, CERM, 10 uF, 25 V,+/- 10%, X7R, 1210 1210 885012209028 Wurth Elektronik C11, C13 2 0.1uF CAP, CERM, 0.1 uF, 25 V, +/- 10%, X7R, 0603 0603 C1608X7R1E10 4K080AA TDK C12 1 1000pF CAP, CERM, 1000 pF, 25 V, +/10%, X7R, 0603 0603 GRM188R71E10 MuRata 2KA01D C14 1 0.01uF CAP, CERM, 0.01 uF, 50 V, +/- 10%, 0603 X7R, AEC-Q200 Grade 1, 0603 GCM188R71H1 03KA37D MuRata C15 1 4.7uF CAP, CERM, 4.7 uF, 35 V, +/- 10%, X5R, 0603 GRM188R6YA4 75KE15D MuRata C16 1 0.33uF CAP, CERM, 0.33 uF, 100 V, +/10%, X7R, C3216X7R2A33 4K130AA TDK C17 1 1uF CAP, CERM, 1 uF, 16 V, +/- 20%, X7R, AEC-Q200 Grade 1, 0603 0603 GCM188R71C1 05MA64D MuRata C18 1 0.1uF CAP, CERM, 0.1 uF, 50 V, +/- 10%, X7R, 0603 0603 C1608X7R1H10 4K080AA TDK C19 1 470pF CAP, CERM, 470 pF, 50 V, +/- 10%, X7R, 0603 0603 GRM188R71H4 71KA01D MuRata C20 1 4.7uF CAP, CERM, 4.7 µF, 25 V,+/- 10%, X6S, AEC-Q200 Grade 2, 0603 0603 GRT188C81E47 MuRata 5KE13D C21 1 220pF CAP, CERM, 220 pF, 50 V, +/- 5%, C0G/NP0, 0603 0603 C0603C221J5G ACTU Kemet C22 1 0.01uF CAP, CERM, 0.01 uF, 16 V, +/- 10%, 0603 X7R, 0603 GRM188R71C1 03KA01D MuRata C24, C26 2 0.22uF CAP, CERM, 0.22 µF, 16 V,+/- 10%, X7R, AEC-Q200 Grade 1, 0603 0603 CL10B224KO8V Samsung PNC C28 1 1000pF CAP, CERM, 1000 pF, 2000 V, +/10%, X7R, 1812 1812 1812GC102K1A D1 1 40V Diode, Schottky, 40 V, 10 A, AECQ101, TO-277A TO-277A SS10P4-M3/87A VishaySemiconductor D2 1 100V Diode, Switching, 100 V, 0.2 A, SOD-323 SOD-323 MMDL914-TP Micro Commercial Components D3 1 150V Diode, Superfast Rectifier, 150 V, 1 A, SMA SMA ES1C-13-F Diodes Inc. D4 1 30V Diode, Schottky, 30 V, 0.2 A, SOT323 SOT-323 BAT54SWT1G Fairchild Semiconductor H1, H2, H3, H4 4 Bumpon, Cylindrical, 0.312 X 0.200, Black Black Bumpon SJ61A1 3M J1, J2 2 Terminal Block, 5mm, 2-pole, TH TH, 2-Leads, Body 10x9mm, Pin Spacing 5mm ED350/2 On-Shore Technology 0603 SNVU629 – June 2019 Submit Documentation Feedback Manufacturer AVX LM5155EVM-FLY User's Guide Copyright © 2019, Texas Instruments Incorporated 17 Design Files www.ti.com Table 3. LM5155EVM-FLY Bill of Materials (continued) 18 J3, TP9 2 TEST POINT SLOTTED .118", TH Test point, TH Slot Test point 1040 Keystone J4 1 Header, 2.54mm, 5x1, Tin, TH Header, 2.54mm, 5x1, TH PEC05SAAN Sullins Connector Solutions Q1 1 100V MOSFET, N-CH, 100 V, 13 A, DQJ0008A (VSONP-8) DQJ0008A CSD19533Q5A Texas Instruments R1 1 15.0 RES, 15.0, 1%, 0.5 W, 1210 1210 ERJ14NF15R0U Panasonic R2, R11 2 100 RES, 100, 1%, 0.1 W, AEC-Q200 Grade 0, 0603 0603 ERJ-3EKF1000V Panasonic R3 1 0 RES, 0, 1%, 0.1 W, AEC-Q200 Grade 0, 0603 0603 RMCF0603ZT0R Stackpole 00 Electronics Inc R4 1 30.1k RES, 30.1 k, 1%, 1 W, AEC-Q200 Grade 0, 2512 2512 CRCW251230K 1FKEG Vishay-Dale R5, R8, R10, R24, R26 5 0 RES, 0, 5%, 0.1 W, AEC-Q200 Grade 0, 0603 0603 ERJ3GEY0R00V Panasonic R6, R9, R13 3 100k RES, 100 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603 0603 CRCW0603100 KFKEA Vishay-Dale R7 1 10.0 RES, 10.0, 1%, 0.1 W, AEC-Q200 Grade 0, 0603 0603 CRCW060310R 0FKEA Vishay-Dale R12 1 0.02 RES, 0.02, 1%, 1 W, 0612 0612 PRL1632-R020F-T1 Susumu Co Ltd R14 1 1.00k RES, 1.00 k, 1%, 0.1 W, 0603 0603 ERJ-3EKF1001V Panasonic R16, R22 2 9.76k RES, 9.76 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603 0603 CRCW06039K7 6FKEA Vishay-Dale R17 1 86.6k RES, 86.6 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603 0603 CRCW060386K 6FKEA Vishay-Dale R18 1 4.99k RES, 4.99 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603 0603 CRCW06034K9 9FKEA Vishay-Dale R19 1 30.0k RES, 30.0 k, 1%, 0.1 W, 0603 0603 RC0603FR0730KL Yageo R20, R21 2 1.00k RES, 1.00 k, 0.1%, 0.1 W, AECQ200 Grade 0, 0603 0603 ERA3AEB102V Panasonic T1 1 21uH Transformer, 21 uH, SMT 13.97x18.25mm 750317933 Wurth Elektronik TP1, TP2 2 Test Point, Miniature, Red, TH Red Miniature Testpoint 5000 Keystone TP3, TP4, TP8 3 Test Point, Miniature, Black, TH Black Miniature Testpoint 5001 Keystone TP5 1 PC Test Point, SMT PC Test Point, SMT 5017 Keystone U1 1 2.2-MHz Wide Input Nonsynchronous Boost, Sepic, Flyback Controller, DSS0012B (WSON-12) DSS0012B LM51551DSST Texas Instruments U2 1 Optocoupler, 2.5 kV, 100-200% CTR, SMT PS2811-1 PS2811-1-M-A California Eastern Laboratories U3 1 Low-Voltage (1.24V) Adjustable Precision Shunt Regulators, 3-pin SOT-23, Pb-Free DBZ0003A LMV431BIMF/N OPB Texas Instruments LM5155EVM-FLY User's Guide SNVU629 – June 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated IMPORTANT NOTICE AND DISCLAIMER TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATASHEETS), DESIGN RESOURCES (INCLUDING REFERENCE DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS” AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS. 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