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Texas Instruments TPS2378 Скачать руководство пользователя страница 4

PAIR36

PAIR78

PAIR45

PAIR12

VSS

VDD

APD

T2P

CDB

RTN

(ON)

(T2P)

CDB

RTN

T2P

VDD

LED BIAS

+

-

+

-

SWITCHED

OUTPUT

+48V, 1A

ADAPTER

INPUT

+33-57V, 1A

POE INPUT

ETHERNET DATA

EGND

2a

2b

2

NOTES

1

NOT USED

a. Use for switched RTN

b. Use to "OR" second TPS2378

1

1 VDD

2 DEN

3 CLS

4 VSS

5

RTN

6

CDB

7

T2P

8

APD

9

PWPD

U1

TPS2378DDA

1
2
3
4
5
6
7
8

J1

1
2
3
4
5
6
7
8

J2

R15

63.4

FB3 500

D4

B2100

D8

SMAJ58A

C9

1000pF

R9

24.9k

C10

0.1uF

C11

1000pF

R10

75

C5

0.01uF

R11

75

C6

0.01uF

R12

75

C7

0.01uF

R13

75

C8

0.01uF

D10

B2100

D5

B2100

D11

B2100

D6

B2100

D12

B2100

D7

B2100

D13

B2100

FB4 500

+

C4

47uF

R6

12.1k

1

2

J4

D2

LN1271RAL

D3

LN1371G

R8

12.1k

FB1 500

D1

B2100

C1

1000pF

C2

0.1uF

R4

237k

R7

10k

R3

75

R5

75

R2

75

R1

75

R14

100k

TP6

TP10

TP1

TP2

TP4

TP3

TP5

TP7

TP9

TP8

FB2 500

C3

0.01uF

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

T1

Q1

IRFL4310

D14

BZT52C18V

D9

B2100

1

2

J5

C12

1000pF

1

2

3

4

J6

1

2

J3

TP11

Schematic

4

Schematic

Figure 1. TPS2378EVM Schematic

4

TPS2378 EVM User’s Guide

SLVU682 – March 2012

Submit Documentation Feedback

Copyright © 2012, Texas Instruments Incorporated

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Содержание TPS2378

Страница 1: ...Assembly Drawings and Layout Guidelines 6 6 1 PC Drawings 6 6 2 Layout Guidelines 9 6 3 EMI Containment 9 7 Bill of Materials 10 List of Figures 1 TPS2378EVM Schematic 4 2 Typical TPS2378EVM Test Set...

Страница 2: ...IEEE 802 3at compliant devices Video and VoIP telephones Multiband access points Security cameras Pico base stations 2 Electrical Specifications at 25 C Table 1 TPS2378EVM Electrical and Performance...

Страница 3: ...PD controller The TPS2378 RTN pin provides inrush limited turn on and charge of the bulk capacitor C4 During inrush the TPS2378 CDB pin is pulled low with respect to the RTN pin Since the CDB pin is c...

Страница 4: ...C6 0 01uF R12 75 C7 0 01uF R13 75 C8 0 01uF D10 B2100 D5 B2100 D11 B2100 D6 B2100 D12 B2100 D7 B2100 D13 B2100 FB4 500 C4 47uF R6 12 1k 1 2 J4 D2 LN1271RAL D3 LN1371G R8 12 1k FB1 500 D1 B2100 C1 1000...

Страница 5: ...D2 RED T2P voltage source above 38V is present at J3 D3 GREEN ON TPS2378 Output Powered Table 3 Test Points Test Point Color Label Description TP1 WHT APD Auxiliar power detect TP2 RED PAIR12 Data pa...

Страница 6: ...es www ti com Figure 2 Typical TPS2378EVM Test Setup 6 EVM Assembly Drawings and Layout Guidelines 6 1 PC Drawings The following figures show component placement and layout of the EVM Figure 3 Top Sid...

Страница 7: ...Assembly Drawings and Layout Guidelines Figure 4 Top Side Routing Figure 5 Layer Two Routing 7 SLVU682 March 2012 TPS2378 EVM User s Guide Submit Documentation Feedback Copyright 2012 Texas Instrument...

Страница 8: ...ings and Layout Guidelines www ti com Figure 6 Layer Three Routing Figure 7 Bottom Side Routing 8 TPS2378 EVM User s Guide SLVU682 March 2012 Submit Documentation Feedback Copyright 2012 Texas Instrum...

Страница 9: ...the power path 6 3 EMI Containment Use compact loops for dv dt and di dt circuit paths power loops and gate drives Use minimal yet thermally adequate copper areas for heat sinking of components tied t...

Страница 10: ...pacing 0 100 inch x 2 PEC02SAAN Sullins 1 R14 100k Resistor Chip 1 16W 1 603 STD STD 1 R7 10k Resistor Chip 1 16W 1 603 STD STD 1 R4 237k Resistor Chip 1 16W 1 603 STD STD 1 R9 24 9k Resistor Chip 1 1...

Страница 11: ...ncy energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES 003 rules which are designed to provide reasonable protection against radio fr...

Страница 12: ...na type and its gain should be so chosen that the equivalent isotropically radiated power e i r p is not more than that necessary for successful communication This radio transmitter has been approved...

Страница 13: ...oduct only after you obtained the license of Test Radio Station as provided in Radio Law of Japan with respect to this product or 3 Use of this product only after you obtained the Technical Regulation...

Страница 14: ...property damage personal injury or death If there are questions concerning these ratings please contact a TI field representative prior to connecting interface electronics including input power and in...

Страница 15: ...ncy energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES 003 rules which are designed to provide reasonable protection against radio fr...

Страница 16: ...na type and its gain should be so chosen that the equivalent isotropically radiated power e i r p is not more than that necessary for successful communication This radio transmitter has been approved...

Страница 17: ...roduct only after you obtained the license of Test Radio Station as provided in Radio Law of Japan with respect to this product or 3 Use of this product only after you obtained the Technical Regulatio...

Страница 18: ...property damage personal injury or death If there are questions concerning these ratings please contact a TI field representative prior to connecting interface electronics including input power and in...

Страница 19: ...egulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related information or support that may be provided...

Страница 20: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments TPS2378EVM 105...

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