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Bill of Materials

www.ti.com

Table 6. Bill of Materials (continued)

ITEM

PART NUMBER

DESCRIPTION

VALUE

C16

C0805C470G1GAC

CAPACITOR, CER, CC0805, KEMET

47pF, 100V

C17

C2012X5R1C103K

CAPACITOR, CER, CC0805, TDK

0.01µF, 100V

C18

C0805C331G1GAC

CAPACITOR, CER, CC0805, KEMET

330pF, 100V

C19

C2012X5R1C103K

CAPACITOR, CER, CC0805, TDK

0.01µF, 100V

C20

C4532X7R2A225M

CAPACITOR, CER, CC1812, TDK

2.2µF, 100V

C21

C4532X7R2A225M

CAPACITOR, CER, CC1812, TDK

2.2µF, 100V

C22

C2012X7R2A223K

CAPACITOR, CER, CC0805, TDK

0.022 µF, 100V

C23

C2012X5R1E474M

CAPACITOR, CER, CC0805, TDK

0.47µF, 25V

C24

C3325X7R1C226M

CAPACITOR, CER, CC1210, TDK

22µF, 16V

C27

APXE6R3ARA121ME61G

CAPACITOR, PAS, NIPPON CHEMI-COM

120µF, 6.3V

C28

C2012X5R1E105M

CAPACITOR, CER, CC0805, TDK

1µF, 25V

D1

S3BB-13

DIODE, SMB, DIODE INC

3A, 100V

D2

S3BB-13

DIODE, SMB, DIODE INC

3A, 100V

D3

NU

NOT POPULATED

D4

SHORT-LEADS

SHORT WITH R1206 0 OHM RES OR

BUS WIRE

D5

CHSD6-60C

DIODE, DPAK, CENTRAL

6A, 60V

D6

NU

NOT POPULATED

D7

CMHD4448

DIODE, SOD123, CENTRAL

125mA, 75V

J1

CN-PHONE8P8C-RA-SHLD

RJ45 CONNECTOR

J2

PJ-102A

POWER JACK

J3

PJ-102A

POWER JACK

J4

CN-PHONE8P8C-RA-SHLD

RJ45 CONNECTOR

J5

3104-2-00-01-00-00-080

POST, MILL MAX

J6

3104-2-00-01-00-00-080

POST, MILL MAX

JMP1

A26542-ND

CONN HEADER VERT., 2POS, DIGI-KEY

2 PIN HEADER

JMP2

A26544-ND

CONN HEADER VERT., 3POS, DIGI-KEY

3 PIN HEADER

JMP3

A26544-ND

CONN HEADER VERT., 3POS, DIGI-KEY

3 PIN HEADER

JMP4

A26544-ND

CONN HEADER VERT., 3POS, DIGI-KEY

3 PIN HEADER

JMP5

A26544-ND

CONN HEADER VERT., 3POS, DIGI-KEY

3 PIN HEADER

JMP6

A26544-ND

CONN HEADER VERT., 3POS, DIGI-KEY

3 PIN HEADER

JMP7

A26542-ND

CONN HEADER VERT., 2POS, DIGI-KEY

2 PIN HEADER

JMP8

A26544-ND

CONN HEADER VERT., 3POS, DIGI-KEY

3 PIN HEADER

JMP9

A26542-ND

CONN HEADER VERT., 2POS, DIGI-KEY

2 PIN HEADER

JMP11

A26542-ND

CONN HEADER VERT., 2POS, DIGI-KEY

2 PIN HEADER

JMP12

A26542-ND

CONN HEADER VERT., 2POS, DIGI-KEY

2 PIN HEADER

JMP13

A26542-ND

CONN HEADER VERT., 2POS, DIGI-KEY

2 PIN HEADER

L1

DO3308P-682MLD

SM INDUCTOR, COILCRAFT

6.8uH

L2

DR127-330

INDUCTOR, COOPER

33uH

LED1

SSL-LXA228GC-TR11

LED,GREEN, LUMEX

P1

3104-2-00-01-00-00-080

POST, MILL MAX

P2

3104-2-00-01-00-00-080

POST, MILL MAX

P3

3104-2-00-01-00-00-080

POST, MILL MAX

P4

3104-2-00-01-00-00-080

POST, MILL MAX

P5

3104-2-00-01-00-00-080

POST, MILL MAX

P6

3104-2-00-01-00-00-080

POST, MILL MAX

P7

3104-2-00-01-00-00-080

POST, MILL MAX

P8

3104-2-00-01-00-00-080

POST, MILL MAX

16

AN-1574 LM5073 Evaluation Board

SNVA214A – April 2007 – Revised April 2013

Submit Documentation Feedback

Copyright © 2007–2013, Texas Instruments Incorporated

Содержание AN-1574 LM5073

Страница 1: ...r optimal solution On board DC DC converter Output voltage 3 3V Maximum output current 3 0A Switching frequency 150kHz Easily reconfigurable for different applications Complete PD interface including...

Страница 2: ...it J5 and J6 3 3V output port of the onboard buck regulator J5 is the high potential pin P1 and P2 a pair of pins for quick PoE input connection from a bench power supply to the center taps of the Eth...

Страница 3: ...rt pins 2 and 3 to bypass common mode input filter Either of the two settings must be selected Short pins 1 and 2 to use the differential input filter JMP6 Short pins 2 and 3 to bypass the differentia...

Страница 4: ...rnal DC DC converter s input capacitance is not enough C8 of the evaluation board can be used Using C8 but excluding L1 JMP6 s three pins should be all shorted together 8 A Note About the Onboard Buck...

Страница 5: ...n order to obtain IEEE 802 3af specified maximum power the Aux source voltage should be greater than 20V Otherwise the obtainable power from the Aux source will be limited by the LM5073 s maximum curr...

Страница 6: ...d configuration for an IEEE 802 3af fully compliant PD interface with rear Aux power support This configuration is recommended for low voltage Aux power sources such as 12V or 24 ac adapters The minim...

Страница 7: ...s R7 may need to be removed or replaced in order to limit the dc current per IEEE 802 3af Refer to LM5073 datasheet for R7 selection Figure 4 IEEE 802 3af Fully Compliant PD Interface with Front Aux P...

Страница 8: ...AUX input voltage is not adequate for the controller to start To select this feature install D3 and R25 according to Table 7 and have JMP2 s pins 2 and 3 shorted but pin 1 open A linear regulator to p...

Страница 9: ...the bench supply s voltmeter or ammeter if accurate efficiency measurements are desired 14 2 Source Power To fully test the evaluation board for high power PD applications either a high power PSE able...

Страница 10: ...mined by R6 of 31 6 This sets the evaluation board to Class 4 which is reserved for future use per IEEE 802 3af namely the high power application If the proper response is not observed during both det...

Страница 11: ...s complete the DC DC converter enters steady state operation and output regulation will be achieved 16 Aux Power Up Sequence The FAUX input power up sequence is similar to that of the PoE input with t...

Страница 12: ...The input current 1A div Figure 8 RAUX Power Up Sequence 18 Ripple Voltage and Current Figure 9 shows the output ripple voltage and input ripple current when the evaluation board is configured to use...

Страница 13: ...ete Evaluation Board Schematic Figure 10 The Complete Schematic of the Evaluation Board Figure 11 Silkscreen 13 SNVA214A April 2007 Revised April 2013 AN 1574 LM5073 Evaluation Board Submit Documentat...

Страница 14: ...Evaluation Board Schematic www ti com Figure 12 Top Layer 14 AN 1574 LM5073 Evaluation Board SNVA214A April 2007 Revised April 2013 Submit Documentation Feedback Copyright 2007 2013 Texas Instruments...

Страница 15: ...0805 KEMET 0 047 F 50V C5 NU NOT POPULATED C6 NU NOT POPULATED C7 NU NOT POPULATED C8 EEV HA2A220P CAPACITOR AL ELEC PANASONIC 22 F 100V C9 NU NOT POPULATED C10 NU NOT POPULATED C11 C2012X5R1C102K CAP...

Страница 16: ...4 2 00 01 00 00 080 POST MILL MAX JMP1 A26542 ND CONN HEADER VERT 2POS DIGI KEY 2 PIN HEADER JMP2 A26544 ND CONN HEADER VERT 3POS DIGI KEY 3 PIN HEADER JMP3 A26544 ND CONN HEADER VERT 3POS DIGI KEY 3...

Страница 17: ...ISTOR 3 32K R11 CRCW12062492F RESISTOR 24 9K R12 CRCW12062492F RESISTOR 24 9K R13 NU NOT POPULATED R14 NU NOT POPULATED R15 NU NOT POPULATED R16 NU NOT POPULATED R17 CRCW2512100J RESISTOR 1 Ohm 1W R18...

Страница 18: ...5mA 75V D6 CMHD4448 DIODE SOD123 CENTRAL 125mA 75V Q1 CMPT2222A BIPOLAR NPN SOT 23 CENTRAL 0 6A 60V Q2 SI4470EY MOSFET N CH SO 8 VISHAY 12A 60V R13 CRCW1206100RJ RESISTOR 100 R14 CRCW12062001F RESISTO...

Страница 19: ...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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