STEVAL-POE002V1, 5V/8A Synchronous Flyback Converter, Power over Ethernet (PoE) IEEE 802.3bt compliant Reference Design
使用 STMicroelectronics 的 PM8805 的参考设计
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依据最终产品
- Barcode Scanner
- Cash Drawer
- EPOS System
- POS Systems
- Power Over Ethernet
说明
- STEVAL-POE002V1, Reference Design is a two-stage converter for a powered device (PD), and is able to deliver up to 40W (5V/8A) DC from appropriate 4-pair PoE power sourcing equipment (PSE), or an external auxiliary supply. The first stage is the Ethernet interface is based on the PM8805 controller with integrated full active bridge rectification. The PoE controller is compliant with the third generation IEEE 802.3bt specification (as well as the preceding 802.3af/at standards), with improved features and increased power capacity that allow new application possibilities for PoE networks, including point of sales and retail logistics devices. The second stage is the DC-DC converter designed around a fixed frequency flyback topology managed by the configurable PM8804 PWM controller, with secondary synchronous rectification via a gate driver transformer
主要特色
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Conversion TypeDC to DC
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Input Voltage40 to 60 V
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Output Voltage5 V
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Output Current8 A
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Output Power40 W
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Efficiency91 %
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TopologyFlyback- Synchronous|PoE
Featured Parts (11)
| 零件编号 | 供应商 | 类别 | 说明 | |||
|---|---|---|---|---|---|---|
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SRK1000BTR | STMicroelectronics | AC to DC Switching Converters | AC to DC Switching Converter Flyback 300kHz T/R 6-Pin SOT-23 | 买入 | |
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SRK1000ATR | STMicroelectronics | AC to DC Switching Converters | AC to DC Switching Converter Flyback 300kHz T/R 6-Pin SOT-23 | 买入 | |
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PM8804TR | STMicroelectronics | Power Over Ethernet - PoE Controllers | Power Over Ethernet PD Controller 10V 75V 16-Pin VFQFPN EP | 买入 | |
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TS2431BILT | STMicroelectronics | Voltage References | V-Ref Adjustable 2.5V to 24V 100mA 3-Pin SOT-23 T/R | 买入 | |
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SRK1000 | STMicroelectronics | AC to DC Switching Converters | AC to DC Switching Converter Flyback 300kHz T/R 6-Pin SOT-23 | 买入 | |
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TS431AILT | STMicroelectronics | Voltage References | V-Ref Adjustable 1.24V to 6V 30mA 5-Pin SOT-23 T/R | 买入 | |
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TS2431ILT | STMicroelectronics | Voltage References | V-Ref Adjustable 2.5V to 24V 100mA 3-Pin SOT-23 T/R | 买入 | |
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TS2431AILT | STMicroelectronics | Voltage References | V-Ref Adjustable 2.5V to 24V 100mA 3-Pin SOT-23 T/R | 买入 | |
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BAS70JFILM | STMicroelectronics | RF Diodes and Mixers | Diode RF Schottky 70V 2-Pin SOD-323 T/R | 买入 | |
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FOD817AS | onsemi | Transistor and Photovoltaic Output Photocouplers | Optocoupler DC-IN 1-CH Transistor DC-OUT 4-Pin PDIP SMD Black Box | 买入 | |
| PM8805TR | STMicroelectronics | Power Over Ethernet - PoE Controllers | Power Over Ethernet PD Controller 43-Pin VFQFPN EP | 买入 | ||