SNVU770 June   2021 LM5157 , LM5157-Q1 , LM51571-Q1

 

  1.   Trademarks
  2. 1Introduction
  3. 2Electrical Parameters
  4. 3Application Schematic
  5. 4EVM Picture
  6. 5Test Setup and Procedure
    1. 5.1 EVM Test Setup Schematic
    2. 5.2 Test Equipment
  7. 6Test Data and Performance Curves
    1. 6.1 Efficiency
    2. 6.2 Output Regulation and Cross-Regulations
    3. 6.3 Steady-State Waveforms
    4. 6.4 Start-Up Waveforms
    5. 6.5 Dynamic Responses
    6. 6.6 Short-Circuit Protection
    7. 6.7 Bode Plots
    8. 6.8 Thermal Image
  8. 7Schematic
  9. 8Bill of Materials
  10. 9EVM Layout

8 Bill of Materials

Table 8-1 details the EVM BOM.

Table 8-1 LM5157EVM-FLY Bill of Materials
Designator Quantity Value Description Package Reference Part Number Manufacturer
C2, C12 2 22uF CAP, Polymer Hybrid, 22 uF, 50 V, ±±20%, 0.08 ohm, AEC-Q200 Grade 1, D6.3xL5.8mm SMD D6.3xL5.8mm EEH-ZC1H220P Panasonic
C3, C4, C13, C14, C18, C19 6 4.7uF CAP, CERM, 4.7 µF, 50 V,±10%, X7R, AEC-Q200 Grade 1, 1210 1210 C1210C475K5RACAUTO Kemet
C5, C8, C15, C20, C23, C28 6 0.1uF CAP, CERM, 0.1 µF, 50 V,±10%, X7R, AEC-Q200 Grade 1, 0603 0603 C0603C104K5RACAUTO Kemet
C7, C17 2 47µF 47µF 50V Aluminum - Polymer Capacitors Radial, Can - SMD 30mOhm 4000 Hrs @ 125°C SMD2 EEH-ZC1H470P Panasonic
C9, C10 2 10uF CAP, CERM, 10 µF, 50 V,±10%, X7R, AEC-Q200 Grade 1, 1206 1206 CGA5L1X7R1H106K160AE TDK
C22 1 100pF CAP, CERM, 100 pF, 50 V, ±5%, C0G/NP0, AEC-Q200 Grade 0, 0603 0603 CGA3E2NP01H101J080AA TDK
C24 1 1uF CAP, CERM, 1 uF, 25 V, ±10%, X7R, 0603 0603 06033C105KAT2A AVX
C25 1 100uF CAP, Aluminum Polymer, 100 uF, 16 V, ±20%, 0.035 ohm, 10x10.3 SMD 10x10.3 16SVP100M Panasonic
C26, C27 2 10uF CAP, CERM, 10 µF, 16 V,±10%, X7R, AEC-Q200 Grade 1, 1206 1206 C1206C106K4RACAUTO Kemet
C29 1 0.01uF CAP, CERM, 0.01 uF, 16 V, ±10%, X7R, 0603 0603 C0603C103K4RACTU Kemet
C31 1 0.022uF CAP, CERM, 0.022 uF, 25 V, ±10%, X7R, 0603 0603 C0603C223K3RACTU Kemet
C34 1 1000pF CAP, CERM, 1000 pF, 50 V, ±5%, X7R, 0603 0603 C0603C102J5RACTU Kemet
C36 1 2.2nF 2200pF ±10% 2000V (2kV) Ceramic Capacitor X7R (2R1) 1206 (3216 Metric) 1206 1206Y2K00222KET Knowles Syfer
D1, D4, D5 3 150V Diode, Schottky, 150 V, 1 A, PowerDI123 PowerDI123 DFLS1150-7 Diodes Inc.
D2 1 10V Diode, Zener, 10 V, 1.5 W, SMA SMA 1SMA5925BT3G ON Semiconductor
D3 1 40V Diode, Schottky, 40 V, 1 A, AEC-Q101, SMA SMA B140Q-13-F Diodes Inc.
D7 1 DIODE SCHOTTKY 60V 1A POWERDI123 PowerDI123 DFLS160-7 Diodes
D9, D10, D11 3 24V Diode, Zener, 24 V, 500 mW, SOD-123 SOD-123 DDZ24C-7 Diodes Inc.
R5, R11, R12 3 49.9k RES, 49.9 k, 1%, 0.1 W, 0603 0603 RC0603FR-0749K9L Yageo
R6, R7 2 10.0 RES, 10.0, 1%, 0.1 W, 0603 0603 RC0603FR-0710RL Yageo
R9 1 12.4k RES, 12.4 k, 1%, 0.1 W, 0603 0603 RC0603FR-0712K4L Yageo
R10, R13 2 0 RES, 0, 5%, 0.1 W, AEC-Q200 Grade 0, 0603 0603 ERJ-3GEY0R00V Panasonic
R14 1 5.62k RES, 5.62 k, 1%, 0.1 W, 0603 0603 RC0603FR-075K62L Yageo
R15 1 332k RES, 332 k, 0.1%, 0.1 W, AEC-Q200 Grade 0, 0603 0603 RC0603FR-07332KL Yageo
R16 1 86.6k RES, 86.6 k, 1%, 0.1 W, 0603 0603 RC0603FR-0786K6L Yageo
R23 1 10.0k RES, 10.0 k, 1%, 0.1 W, 0603 0603 RC0603FR-0710KL Yageo
T1 1 FLYBACK TRANSFORMER SMT_TRANSFORMER_17MM20_21MM97 ZB1324-AL Coilcraft
U1 1 2.2MHz Wide VIN Boost/Sepic/Flyback Converter with Dual Random Spread Spectrum, RTE0016K (WQFN-16) RTE0016K LM5157QRTERQ1 Texas Instruments
C1, C11, C16, C21 0 100pF CAP, CERM, 100 pF, 100 V, ±1%, C0G/NP0, 0603 0603 C1608C0G2A101F080AA TDK
C6 0 0.1uF CAP, CERM, 0.1 µF, 50 V,±10%, X7R, AEC-Q200 Grade 1, 0603 0603 C0603C104K5RACAUTO Kemet
C30, C32, C33 0 1000pF CAP, CERM, 1000 pF, 50 V, ±5%, X7R, 0603 0603 C0603C102J5RACTU Kemet
C35 0 0.01uF CAP, CERM, 0.01 uF, 16 V, ±10%, X7R, 0603 0603 C0603C103K4RACTU Kemet
D6 0 80V Diode, Schottky, 80 V, 0.5 A, SOD-123 SOD-123 MBR0580-TP Micro Commercial Components
D8 0 30V Diode, Schottky, 30 V, 0.2 A, SOT-323 SOT-323 BAT54SWT1G Fairchild Semiconductor
R1, R2, R3, R8 0 100 RES, 100, 1%, 0.1 W, 0603 0603 RC0603FR-07100RL Yageo
R4, R19 0 10.0 RES, 10.0, 1%, 0.1 W, 0603 0603 RC0603FR-0710RL Yageo
R17, R18, R20, R21, R24 0 10.0k RES, 10.0 k, 1%, 0.1 W, 0603 0603 RC0603FR-0710KL Yageo
R22 0 49.9k RES, 49.9 k, 1%, 0.1 W, 0603 0603 RC0603FR-0749K9L Yageo
R25, R26 0 0 RES, 0, 5%, 0.25 W, AEC-Q200 Grade 0, 1206 1206 ERJ-8GEY0R00V Panasonic
R27, R29, R30, R31 0 1.00k RES, 1.00 k, 1%, 0.25 W, AEC-Q200 Grade 0, 1206 1206 ERJ-8ENF1001V Panasonic
R28 0 5.62k RES, 5.62 k, 1%, 0.1 W, 0603 0603 RC0603FR-075K62L Yageo
R32 0 0 RES, 0, 5%, 0.1 W, AEC-Q200 Grade 0, 0603 0603 ERJ-3GEY0R00V Panasonic
U2 0 Optocoupler, 2.5 kV, 100-200% CTR, SMT PS2811-1 PS2811-1-M-A California Eastern Laboratories
U3 0 Low-Voltage (1.24V) Adjustable Precision Shunt Regulators, 3-pin SOT-23, Pb-Free DBZ0003A Texas Instruments