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dc2583af

DEMO MANUAL DC2583A

typical performance characteristics

Figure 1. Thermal Pictures (Conditions: V

PORT

 = 41.2V, V

OUT

 = 40.8V, I

OUT

 = 1.72A)

Figure 2. Efficiency (End-to-End)

performance summary

Specifications are at T

A

 = 25°C

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Port Voltage (V

PORT

)

At RJ45

37

57

V

Auxiliary Voltage

From AUX+ to AUX– Terminals

37

57

V

Efficiency

V

PORT

 = 48V, I

OUT

 = 1.2A

99.2

%

T2P

 Switching Frequency

840

Hz

Top Side

Bottom Side

LOAD CURRENT (A)

0

0.3

0.6

0.9

1.2

1.5

1.8

98.4

98.7

99.0

99.3

99.6

EFFICIENCY (%)

DC2583 F02

Summary of Contents for INEAR TECHNOLOGY DC2583A

Page 1: ...n isolated power supply The T2P output indicates the available power from the power sourcing L LT LTC LTM Linear Technology LTPoE and the Linear logo are registered trademarks of Analog Devices Inc All other trademarks are the property of their respective owners Board Photo equipment PSE to the downstream load This signal can be used to limit the load and prevent overloading the PSE The LT4321 con...

Page 2: ...nd to End Performance Summary Specifications are at TA 25 C PARAMETER CONDITIONS MIN TYP MAX UNITS Port Voltage VPORT At RJ45 37 57 V Auxiliary Voltage From AUX to AUX Terminals 37 57 V Efficiency VPORT 48V IOUT 1 2A 99 2 T2P Switching Frequency 840 Hz Top Side Bottom Side LOAD CURRENT A 0 0 3 0 6 0 9 1 2 1 5 1 8 98 4 98 7 99 0 99 3 99 6 EFFICIENCY DC2583 F02 ...

Page 3: ...compliant PSE see note to the RJ45 connector J1 of the DC2583A using a CAT5e or CAT6 Ethernet cable 5 After connection has been established verify that the LED D3 is lit This indicates the PSE has successfully detected and powered the PD 6 Verify T2P response with a digital multimeter or an oscilloscope The T2P response for the type of PSE connected to the DC2583A is provided in Table 2 Note An 80...

Page 4: ...e 4 Setup Diagram for DC2583A with a Resistive or an Active Load Quick Start Procedure DC2583 F03 OPTO IEEE 802 3bt PSE LOAD RJ45 RJ45 CAT5e OR CAT6 CABLE VIN ENABLE PSE TYPE TO µP DC DC CONVERTER DC2583 F04 IEEE 802 3bt PSE RJ45 RJ45 CAT5e OR CAT6 CABLE USE LAB_TEST_VOUT CONNECTION FOR RESISTIVE OR ACTIVE LOAD RESISTIVE OR ACTIVE LOAD ...

Page 5: ... its output voltage to 48V 4 Once the LED D3 on the DC2583A is lit check the outputvoltageusingavoltmeter Outputvoltageshould be within 37 57V 5 Verify T2P response with an oscilloscope as shown in Figure 5 The T2P response during auxiliary power operation is provided in Table 3 Figure 5 Setup Diagram for Auxiliary Supply Input LOAD DC2583 F05 OPTO VIN AUXILIARY DC POWER SUPPLY ENABLE PSE TYPE TO ...

Page 6: ...8 2Ω 1 5W 5 0805 NIC NRC10J8R2TRF 15 1 R13 RES 3 3k 1 10W 5 0603 VISHAY CRCW06033K30JNEA 16 2 R14 R15 RES 100k 1 10W 5 0603 VISHAY CRCW0603100KJNEA 17 0 R16 R17 RES OPT 0805 OPT 18 2 RC1 RC6 RES 1 00k 1 8W 1 0805 VISHAY CRCW08051K00FKEA 19 2 RC2 RC8 RES 140Ω 1 8W 1 0805 VISHAY CRCW0805140RFKEA 20 2 RC3 RC10 RES 76 8Ω 1 8W 1 0805 VISHAY CRCW080576R8FKEA 21 2 RC4 RC12 RES 49 9Ω 1 8W 1 0805 VISHAY CR...

Page 7: ...MSZ5242BS 7 F 5 7 E1 E2 E3 E4 E5 E6 E7 TURRET 0 094 MTG HOLE MILL MAX 2501 2 00 80 00 00 07 0 6 1 J2 CONN MOD JACK FEMALE 2 54mm 8 TERMINAL 1 PORT R A THRU HOLE STEWART CONNECTOR SS 7188S A NF 7 18 JP1 JP18 CONN HEADER 1X2 2mm SULLINS NRPN021PAEN RC 8 1 R19 RES 30k 1 10W 5 0603 VISHAY CRCW060330K0JNEA 9 1 RMPS1 RES 3 0k 2W 1 2512 TE CONNECTIVITY 35213K0FT 10 4 RT5 RT6 RT7 RT8 RES 75Ω 1 10W 5 0603 ...

Page 8: ...CATIONS ENGINEERING FOR ASSISTANCE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS SCALE NONE www linear com 1 Wednesday May 24 2017 1 2 IEEE 802 3bt POWERED DEVICE KAUNG H KAUNG H N A LT4294IDD LT4321IUF SIZE DATE V E R O N C I SHEET OF TITLE APPROVALS PCB DES APP ENG TECHNOLOGY Fax 408 434 0507 Milpitas CA 95035 Phone 408 432 1900 1630...

Page 9: ...Y 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 1 Wednesday May 24 2017 2 2 IEEE 802 3bt POWERED DEVICE KAUNG H KAUNG H N A LT4294IDD LT4321IUF SIZE DATE V E R O N C I SHEET OF TITLE APPROVALS PCB DES APP ENG TECHNOLOGY Fax 408 434 0507 Milpitas CA 95035 Phone 408 432 19...

Page 10: ...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 CONSEQUENTIAL DAMAGES The user assumes all responsibility and liability for proper and safe handling of the goods Further the user releases LTC from all claims arising from the handling or use of the goods Due to the open construction of the product it...

Page 11: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Analog Devices Inc DC2583A ...

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