POE-PD-POWER-REF, LM5072 with 5 Vout, 25W IEEE 802.3at Compliant POE+ PD Power Reference Design
Referenzdesign unter Verwendung des Teils LM5072MH-80 von Texas Instruments
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Für Endprodukte
- Power Supplies
Beschreibung
- POE-PD-POWER-REF, LM5072 based 5V out 25W POE+ PD power supply reference design was prototyped to be fully compliant with IEEE 802.3at standard. The design converts 48 to 5 VDC. It can deliver up to 25W power as specified by the IEEE 802.3at standard. It has a 2 event detection circuit which can identify the PSE as either Type one or Type two. The 2 event detection circuit is located on the bottom layer of the PC board. In those applications where this 2 event detection feature is not required, the user only needs to populate top layer components. The input current limit is 800 mA. The efficiency of this design is high enough to keep input current under 800mA at 38Vin full load. The input under voltage lock has 7V hysteresis with 38V rise and 31V fall
Haupteigenschaften
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Conversion TypeDC to DC
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Input Voltage38 to 60 V
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Output Voltage5 V
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Output Current5 A
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Output Power25 W
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Efficiency85 %
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TopologyPoE
Empfohlene Bauteile (18)
| Teilenummer | Hersteller | Typ | Beschreibung | |||
|---|---|---|---|---|---|---|
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PS2501L-1-H-A | Renesas Electronics | Transistor and Photovoltaic Output Photocouplers | DC-IN 1-CH Transistor DC-OUT 4-Pin PDIP SMD | In den Warenkorb | |
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LM2936HVMAX-5.0/NOPB | Texas Instruments | Linear Regulators | LDO Regulator Pos 5V 0.05A 8-Pin SOIC T/R | In den Warenkorb | |
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SN74AHC74DGVR | Texas Instruments | Flip Flops | Flip Flop D-Type Pos-Edge 2-Element 14-Pin TVSOP T/R | In den Warenkorb | |
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SN74AHC74DR | Texas Instruments | Flip Flops | Flip Flop D-Type Pos-Edge 2-Element 14-Pin SOIC T/R | In den Warenkorb | |
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LMV762MA/NOPB | Texas Instruments | Linear Comparators | Comparator Dual 5.25V 8-Pin SOIC Tube | In den Warenkorb | |
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SN74AHC74DBR | Texas Instruments | Flip Flops | Flip Flop D-Type Pos-Edge 2-Element 14-Pin SSOP T/R | In den Warenkorb | |
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LMV431AIM5/NOPB | Texas Instruments | Voltage References | V-Ref Adjustable 1.24V to 30V 15mA 5-Pin SOT-23 T/R | In den Warenkorb | |
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LMV431AIM5/NOPB | Texas Instruments | Voltage References | V-Ref Adjustable 1.24V to 30V 15mA 5-Pin SOT-23 T/R | In den Warenkorb | |
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LMV431AIM5X/NOPB | Texas Instruments | Voltage References | V-Ref Adjustable 1.24V to 30V 15mA 5-Pin SOT-23 T/R | In den Warenkorb | |
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LM2936HVMA-5.0/NOPB | Texas Instruments | Linear Regulators | LDO Regulator Pos 5V 0.05A 8-Pin SOIC Tube | In den Warenkorb | |
|
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LMV762MA/NOPB | Texas Instruments | Linear Comparators | Comparator Dual 5.25V 8-Pin SOIC Tube | In den Warenkorb | |
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LMV762MAX/NOPB | Texas Instruments | Linear Comparators | Comparator Dual 5.25V 8-Pin SOIC T/R | In den Warenkorb | |