PMP940, 12V, 1A Isolated PoE PD Power Supply Reference Design
使用 Texas Instruments 的 TPS2375PW 的参考设计
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说明
- PMP940, is a high efficiency, isolated, synchronous flyback Power-over-Ethernet PD power supply reference design intended to ease implementation of PoE in devices such as IP phones, WLAN AP's and security cameras. The reference design uses a TPS2375 PoE Powered Device Controller to implement all necessary detection, classification, inrush current limiting, UVLO and switch FET control necessary to be compliant with the IEEE802.3af Power-over-Ethernet standard. A UCC3809 Economy Primary Side Controller is used to generate 12V at 1A from the 48V PoE input. The design is optimized for maximum efficiency in the smallest board area possible
主要特色
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Conversion TypeDC to DC
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Input Voltage48 V
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Output Voltage12 V
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Output Current1 A
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TopologyFlyback
Featured Parts (9)
| 零件编号 | 供应商 | 类别 | 说明 | |||
|---|---|---|---|---|---|---|
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UCC3809P-2 | Texas Instruments | PWM and Resonant Controllers | Primary Side PWM Controller 0.8mA 1000kHz 8-Pin VSSOP Tube | 买入 | |
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TCMT1107 | Vishay | Transistor and Photovoltaic Output Photocouplers | Optocoupler DC-IN 1-CH Transistor DC-OUT 4-Pin SSOP T/R | 买入 | |
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TL431IDBVR | Texas Instruments | Voltage References | V-Ref Adjustable 2.495V to 36V 100mA 5-Pin SOT-23 T/R | 买入 | |
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TPS2375PW | Texas Instruments | Power Over Ethernet - PoE Controllers | Power Over Ethernet PD Controller 0V 57V 13W 8-Pin TSSOP | 买入 | |
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TPS2375PW-1 | Texas Instruments | Power Over Ethernet - PoE Controllers | Power Over Ethernet PD Controller 0V 57V 13W 8-Pin TSSOP | 买入 | |
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TPS2375PW-1G4 | Texas Instruments | Power Over Ethernet - PoE Controllers | Power Over Ethernet PD Controller 0V 57V 13W 8-Pin TSSOP | 买入 | |
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TPS2375PWRG4 | Texas Instruments | Power Over Ethernet - PoE Controllers | Power Over Ethernet PD Controller 0V 57V 13W 8-Pin TSSOP | 买入 | |
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TPS2375PWR | Texas Instruments | Power Over Ethernet - PoE Controllers | Power Over Ethernet PD Controller 0V 57V 13W 8-Pin TSSOP | 买入 | |
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TPS2375PWR-1 | Texas Instruments | Power Over Ethernet - PoE Controllers | Power Over Ethernet PD Controller 0V 57V 13W 8-Pin TSSOP | 买入 | |