background image

10

dc1815afc

DEMO MANUAL DC1815A

schematic Diagram

5

5

4

4

3

3

2

2

1

1

D

D

C

C

B

B

A

A

DATA IN

DATA IN

POWER AND DATA OUT

DATA IN

DATA IN

TM

CONNECTOR SHIELDING

PORT 1

POWER AND DATA OUT

POWER AND DATA OUT

POWER AND DATA OUT

PORT 2

PORT 3

PORT 4

2

_

PRODUCTION

DILIAN R.

5/4/11

_

2a

PWR LEVEL UPDATE

DILIAN R.

10/5/11

_

2b

T1-T4 OPTION

DILIAN R.

3/28/13

T1,T2,T3,T4: WURTH 749022016                       COILCRAFT ETH1-460L

NOTE: FOR TEMPERATURE SENSITIVE 90W APPLICATIONS, TWO OF THE 749012013 MAY BE USED AS AN ALTERNATE TO EACH T1, T2, T3, and T4 WHICH HAS A HIGHER CURRENT RATING

OUT1

OUT2

OUT3

OUT4

OUT1

OUT2

OUT3

OUT4

SIZE

DATE:

.V

ER

.O

CI

SHEET

OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035 Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION.  COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY.  CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

2

Thursday, March 28, 2013

2

3

QUAD PORT LTPoE++      PSE CONTROLLER

JK

DILIAN R.

N/A

LTC4266AIUHF FAMILY

DEMO CIRCUIT 1815A

SIZE

DATE:

.V

ER

.O

CI

SHEET

OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035 Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION.  COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY.  CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

2

Thursday, March 28, 2013

2

3

QUAD PORT LTPoE++      PSE CONTROLLER

JK

DILIAN R.

N/A

LTC4266AIUHF FAMILY

DEMO CIRCUIT 1815A

SIZE

DATE:

.V

ER

.O

CI

SHEET

OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035 Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION.  COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY.  CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

2

Thursday, March 28, 2013

2

3

QUAD PORT LTPoE++      PSE CONTROLLER

JK

DILIAN R.

N/A

LTC4266AIUHF FAMILY

DEMO CIRCUIT 1815A

REVISION HISTORY

DESCRIPTION

DATE

APPROVED

ECO

REV

REVISION HISTORY

DESCRIPTION

DATE

APPROVED

ECO

REV

REVISION HISTORY

DESCRIPTION

DATE

APPROVED

ECO

REV

CT5

0.01uF

0805

CT5

0.01uF

0805

FB3FB3

J1-4

RJ45  5569262-1

J1-4

RJ45  5569262-1

4-1

31

4-2

32

4-3

33

4-4

34

4-5

35

4-6

36

4-7

37

4-8

38

RT32

75

RT32

75

FB13FB13

F12

3A, 1206

C1Q 3

F12

3A, 1206

C1Q 3

CT12

0.01uF

0805

CT12

0.01uF

0805

F10

3A, 1206

C1Q 3

F10

3A, 1206

C1Q 3

RT12

75

RT12

75

SHIELD

J1-13

RJ45  5569262-1

SHIELD

J1-13

RJ45  5569262-1

S1

121

S2

122

S3

123

S4

124

S5

125

S6

126

S7

127

S8

128

S9

129

RT23

75

RT23

75

RT8

75

RT8

75

RT25

75

RT25

75

RT10

75

RT10

75

RT13

75

RT13

75

RT1

75

RT1

75

CG6 1000pF 2kV 1808

CG6 1000pF 2kV 1808

J1-2

RJ45  5569262-1

J1-2

RJ45  5569262-1

2-1

11

2-2

12

2-3

13

2-4

14

2-5

15

2-6

16

2-7

17

2-8

18

FB7FB7

CT2

0.01uF

0805

CT2

0.01uF

0805

CT7

0.01uF

0805

CT7

0.01uF

0805

FB6FB6

FB2FB2

F13

3A, 1206

C1Q 3

F13

3A, 1206

C1Q 3

FB4FB4

RT15

75

RT15

75

F1

3A, 1206

C1Q 3

F1

3A, 1206

C1Q 3

FB11FB11

F15

3A, 1206

C1Q 3

F15

3A, 1206

C1Q 3

FB10FB10

RT21

75

RT21

75

CT14

0.01uF

0805

CT14

0.01uF

0805

RT19

75

RT19

75

RT28

75

RT28

75

CT9

0.01uF

0805

CT9

0.01uF

0805

CG3

1000pF

2kV 1808

CG3

1000pF

2kV 1808

F6

3A, 1206

C1Q 3

F6

3A, 1206

C1Q 3

RT2

75

RT2

75

FB14FB14

CT16

0.01uF

0805

CT16

0.01uF

0805

RT5

75

RT5

75

CG8 1000pF 2kV 1808

CG8 1000pF 2kV 1808

J1-8

RJ45  5569262-1

J1-8

RJ45  5569262-1

8-1

71

8-2

72

8-3

73

8-4

74

8-5

75

8-6

76

8-7

77

8-8

78

F8

3A, 1206

C1Q 3

F8

3A, 1206

C1Q 3

CT11

0.01uF

0805

CT11

0.01uF

0805

F11

3A, 1206

C1Q 3

F11

3A, 1206

C1Q 3

RT31

75

RT31

75

RT22

75

RT22

75

CG4 1000pF 2kV 1808

CG4 1000pF 2kV 1808

T4T4

2

22

3

24

23

1

5

4

6

8

7

9

11

10

12

20

21

19

17

18

16

14

15

13

RT4

75

RT4

75

J1-6

RJ45  5569262-1

J1-6

RJ45  5569262-1

6-1

51

6-2

52

6-3

53

6-4

54

6-5

55

6-6

56

6-7

57

6-8

58

FB16FB16

F9

3A, 1206

C1Q 3

F9

3A, 1206

C1Q 3

CT1

0.01uF

0805

CT1

0.01uF

0805

J1-5

RJ45  5569262-1

J1-5

RJ45  5569262-1

5-1

41

5-2

42

5-3

43

5-4

44

5-5

45

5-6

46

5-7

47

5-8

48

RT30

75

RT30

75

CT3

0.01uF

0805

CT3

0.01uF

0805

J1-7

RJ45  5569262-1

J1-7

RJ45  5569262-1

7-1

61

7-2

62

7-3

63

7-4

64

7-5

65

7-6

66

7-7

67

7-8

68

FB1FB1

CT6

0.01uF

0805

CT6

0.01uF

0805

RT18

75

RT18

75

RT11

75

RT11

75

FB15FB15

F3

3A, 1206

C1Q 3

F3

3A, 1206

C1Q 3

F2

3A, 1206

C1Q 3

F2

3A, 1206

C1Q 3

FB12FB12

RT16

75

RT16

75

RT7

75

RT7

75

F14

3A, 1206

C1Q 3

F14

3A, 1206

C1Q 3

CG1

1000pF

2kV 1808

CG1

1000pF

2kV 1808

RT14

75

RT14

75

CT8

0.01uF

0805

CT8

0.01uF

0805

RT20

75

RT20

75

F16

3A, 1206

C1Q 3

F16

3A, 1206

C1Q 3

RT29

75

RT29

75

F4

3A, 1206

C1Q 3

F4

3A, 1206

C1Q 3

RT24

75

RT24

75

CG5

1000pF

2kV 1808

CG5

1000pF

2kV 1808

RT9

75

RT9

75

RT17

75

RT17

75

CG2 1000pF 2kV 1808

CG2 1000pF 2kV 1808

CT10

0.01uF

0805

CT10

0.01uF

0805

F5

3A, 1206

C1Q 3

F5

3A, 1206

C1Q 3

RT27

75

RT27

75

CG7

1000pF

2kV 1808

CG7

1000pF

2kV 1808

CT13

0.01uF

0805

CT13

0.01uF

0805

J1-3

RJ45  5569262-1

J1-3

RJ45  5569262-1

3-1

21

3-2

22

3-3

23

3-4

24

3-5

25

3-6

26

3-7

27

3-8

28

T2T2

2

22

3

24

23

1

5

4

6

8

7

9

11

10

12

20

21

19

17

18

16

14

15

13

RT26

75

RT26

75

FB9FB9

CT4

0.01uF

0805

CT4

0.01uF

0805

T3T3

2

22

3

24

23

1

5

4

6

8

7

9

11

10

12

20

21

19

17

18

16

14

15

13

CT15

0.01uF

0805

CT15

0.01uF

0805

F7

3A, 1206

C1Q 3

F7

3A, 1206

C1Q 3

RT6

75

RT6

75

J1-1

RJ45  5569262-1

J1-1

RJ45  5569262-1

1-1

1

1-2

2

1-3

3

1-4

4

1-5

5

1-6

6

1-7

7

1-8

8

FB5FB5

RT3

75

RT3

75

FB8FB8

T1T1

2

22

3

24

23

1

5

4

6

8

7

9

11

10

12

20

21

19

17

18

16

14

15

13

Summary of Contents for LTC4266A

Page 1: ...e trademarks of Linear Technology Corporation All other trademarks are the property of their respective owners an I2C serial interface operable up to 1MHz Optional I2C control is accessed on the DC181...

Page 2: ...ables AUTO pin high mode 3 Connect a 55V to 57V power supply across AGND and VEE Size the power supply considering the maximum power delivered to the PDs 4 Connect with an Ethernet cable an 802 3at Ty...

Page 3: ...E PDs up to the power level rating of the LTC4266A version used For full control via I2C the AUTO pin is to be pulled low Modification of the AUTO pin jumper requires a device reset or power cycle End...

Page 4: ...er area or trace between the sense resistor and the MOSFET Figure 3 LTC4266A Key Application Components for Board Placement The VEE side of the sense resistor must connect to a thick VEE plane through...

Page 5: ...asshowninFigure5 EachLTC4266A has its own copper fill area on the surface that connects to the VEE plane with multiple large vias The net effect is to reduce the layout problem down to 4 port groups t...

Page 6: ...6 dc1815afc DEMO MANUAL DC1815A PCB Layout Layer 2 Plane Layer Layer 3 Plane Layer Layer 4 Bottom Layer Bottom Silkscreen...

Page 7: ...ROHM SML 010DTT86L 19 4 D12 D15 LED GREEN ROHM SML 010FTT86L 20 1 D6 LED RED ROHM SML 010VTT86L 21 16 F 1 F16 FUSE 3A 63VDC 1206 BEL FUSE C1Q3 22 1 R9 RES 0603 1 5 1 10W VISHAY CRCW06031R00JNEA 23 1...

Page 8: ...A DC1815A B 1 1 DC1815A GENERAL BOM 2 16 FB1 FB16 FERRITE BEAD 1k 0805 TDK MPZ2012S102A 3 1 U1 IC LTC4266A 2 QUAD PORT 52 7W PSE CONTROLLER LINEAR LTC4266AIUHF 2 4 1 FAB PRINTED CIRCUIT BOARD DEMO CIR...

Page 9: ...FOR USE WITH LINEAR TECHNOLOGY PARTS SCALE NONE www linear com 2 Thursday March 28 2013 1 3 QUAD PORT LTPoE PSE CONTROLLER JK DILIAN R N A LTC4266AIUHF FAMILY DEMO CIRCUIT 1815A SIZE DATE V E R O N C...

Page 10: ...1815A REVISION HISTORY DESCRIPTION DATE APPROVED ECO REV REVISION HISTORY DESCRIPTION DATE APPROVED ECO REV REVISION HISTORY DESCRIPTION DATE APPROVED ECO REV CT5 0 01uF 0805 CT5 0 01uF 0805 FB3 FB3...

Page 11: ...LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS SCALE NONE www linear com 2 Thurs...

Page 12: ...NCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE EXCEPT TO THE EXTENT OF THIS INDEMNITY NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR...

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