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Layout and Bill of Materials (BOM)

12

Layout and Bill of Materials (BOM)

The Bill of Materials is shown in

Table 1

and includes the manufacturer and part number. The layers of the

printed circuit board (PCB) are shown in top down order. The view is from the top down except for the
bottom silkscreen, which is shown viewed from the bottom. The scale is approximately X1.5. The printed
circuit board consists of 4 layers of 3 ounce copper on FR4 material with a total thickness of 0.050 inches.

Table 1. Bill of Materials (BOM)

QTY

DESIGNATOR

PART NUMBER

DESCRIPTION

VALUE

4

C1-C4

C4532X7R2A225M

CAPACITOR, CER, TDK

2.2µ, 100V

1

C5

C4532X7R3A103K

CAPACITOR, CER, TDK

0.01µ, 1000V

2

C6,C15

C3216X7R2E104K

CAPACITOR, CER, TDK

0.1µ, 250V

1

C7

C4532X7R1E156M

CAPACITOR, CER, TDK

15µ, 25V

1

C8

C2012X7R2A103K

CAPACITOR, CER, TDK

0.01µ, 100V

3

C9,C30,C33

C2012X7R2A102K

CAPACITOR, CER, TDK

1000p, 100V

4

C10,C14,C28, C31

C2012X7R1H104K

CAPACITOR, CER, TDK

0.1µ, 50V

2

C11, C12

C2012X7R1H473K

CAPACITOR, CER, TDK

0.047µ, 50V

2

C13,C18

C1206C104K5RAC

CAPACITOR, CER, KEMET

0.1µ, 50V

3

C16, C17, C29

C0805C471J5GAC

CAPACITOR, CER, KEMET

470p, 50V

2

C19,C20

T520D337M006AS4350

CAPACITOR,TANT,KEMET

330µ, 6.3V

3

C21,C22,C23

C4532X7S0G686M

CAPACITOR, CER, TDK

68µ, 4V

C24, C25

OPEN

NOT USED

1

C26

C0805C101J5GAC

CAPACITOR, CER, KEMET

100p, 50V

1

C27

C1206C333K5RAC

CAPACITOR, CER, KEMET

0.033µ, 50V

1

C32

C0805C330J5GAC

CAPACITOR, CER, KEMET

33p, 50V

7

D1- D7

CMPD2838

DIODE, SIGNAL, CENTRAL

1

D8

CMPD7000

DIODE, SIGNAL, CENTRAL

1

D9

CMR1U-02

DIODE, 200V, CENTRAL

1

L1

SLF10145T-5R6M3R2

INPUT CHOKE, TDK

5.6µH, 3.5A

1

L2

B0358-C

CHOKE with AUX,

2µH, 33A

COILCRAFT

1

Q1

SI7846DP

N-FET, SILICONIX

150V, 50m

1

Q2

ZVP2120GTA

P-FET, ZETEX

200V, 20

4

Q3 - Q6

SI7866DP

FET, SILICONIX

20V, 3m

4

R1, R22, R24, R28

CRCW120610R0F

RESISTOR

10

R2, R13, R25

OPEN

NOT USED

2

R3, R4

CRCW120615R0F

RESISTOR

15

1

R5

CRCW12062000F

RESISTOR

200

1

R6

CRCW120649R9F

RESISTOR

49.9

1

R7

CRCW12061003F

RESISTOR

100k

1

R8

CRCW12063831F

RESISTOR

3.83k

2

R9, R15

CRCW12061001F

RESISTOR

1k

1

R10

CRCW12062212F

RESISTOR

22.1k

1

R11

CRCW12063921F

RESISTOR

3.92k

1

R12

CRCW12061652F

RESISTOR

16.5k

5

R14,R18,R19,R29,R3

CRCW12061002F

RESISTOR

10k

3,R35

2

R16, R17

CRCW12065R60F

RESISTOR

5.6

2

R20, R21

CRCW2512100J

RESISTOR

10

, 1W

1

R23

CRCW12061000F

RESISTOR

100

1

R26

CRCW12062492F

RESISTOR

24.9k

1

R27

CRCW12061502F

RESISTOR

15k

7

SNVA117A – September 2005 – Revised May 2013

AN-1387 LM5026 Evaluation Board

Submit Documentation Feedback

Copyright © 2005–2013, Texas Instruments Incorporated

Содержание AN-1387 LM5026

Страница 1: ...in primary switch turns on and applies the input voltage across the primary winding which has 12 turns The transformer secondary has 2 turns leading to a 6 1 step down of the input voltage For an outp...

Страница 2: ...ts this is especially true for accurate efficiency measurements 5 Source Power The evaluation board can be viewed as a constant power load At low input line voltage 36V the input current can reach 3 5...

Страница 3: ...impedance referred to earlier The interaction of the source supply folding back and the evaluation board going into undervoltage shutdown will start an oscillation or chatter that may have undesirable...

Страница 4: ...the gate capacitance This provides improved switching transitions for optimum efficiency The difference in drive voltage is inherent in the topology and varies with line voltage Conditions Input Volta...

Страница 5: ...hronous rectifier Q3 gate Volts div 5V Trace 1 Resolution 1 s div Synchronous rectifier Q3 gate Volts div 5V Trace 2 Synchronous rectifier Q5 gate Volts div 5V Horizontal Resolution 1 s div Figure 7 D...

Страница 6: ...pplication Circuit Figure 9 Application Circuit Input 36 to 78V Output 3 3V 30A 6 AN 1387 LM5026 Evaluation Board SNVA117A September 2005 Revised May 2013 Submit Documentation Feedback Copyright 2005...

Страница 7: ...ITOR TANT KEMET 330 6 3V 3 C21 C22 C23 C4532X7S0G686M CAPACITOR CER TDK 68 4V C24 C25 OPEN NOT USED 1 C26 C0805C101J5GAC CAPACITOR CER KEMET 100p 50V 1 C27 C1206C333K5RAC CAPACITOR CER KEMET 0 033 50V...

Страница 8: ...RRENT XFR PULSE ENG 100 01 1 T2 B0357 B POWER XFR COILCRAFT 12 02 1 U1 LM5026 CONTROLLER Texas Instruments 1 U2 MOCD207M OPTO COUPLER QT OPTO 1 U3 LM6132 OPAMP Texas Instruments 1 U4 LM4041 REFERENCE...

Страница 9: ...www ti com PCB Layouts Figure 11 Figure 12 9 SNVA117A September 2005 Revised May 2013 AN 1387 LM5026 Evaluation Board Submit Documentation Feedback Copyright 2005 2013 Texas Instruments Incorporated...

Страница 10: ...PCB Layouts www ti com Figure 13 Figure 14 10 AN 1387 LM5026 Evaluation Board SNVA117A September 2005 Revised May 2013 Submit Documentation Feedback Copyright 2005 2013 Texas Instruments Incorporated...

Страница 11: ...www ti com PCB Layouts Figure 15 11 SNVA117A September 2005 Revised May 2013 AN 1387 LM5026 Evaluation Board Submit Documentation Feedback Copyright 2005 2013 Texas Instruments Incorporated...

Страница 12: ...sponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related inf...

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