PMP841, Non-Isolated PoE PD Power Supply Reference Design
Reference Design using part TPS2375PW by Texas Instruments
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Description
- PMP841, high efficiency, non-isolated 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 TPS40061, high-voltage, wide input (10 V to 55 V) synchronous, step-down converter is used to generate 3.3V, 5V or 12V from the 48V PoE input. The design is optimized for maximum efficiency in the smallest board area possible
Key Features
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Conversion TypeDC to DC
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Input Voltage10 to 55 V
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Output Voltage5|3.3 V
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Output Current2.5@5V |3.6@3.3V A
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TopologyBuck
Featured Parts (10)
| Part Number | Manufacturer | Type | Description | |||
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TPS40061PWPRG4 | Texas Instruments | DC to DC Controllers | DC/DC Cntrlr Single-OUT Step Down 1000kHz 16-Pin HTSSOP EP T/R | Buy | |
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TPS40061PWPR | Texas Instruments | DC to DC Controllers | DC/DC Cntrlr Single-OUT Step Down 1000kHz 16-Pin HTSSOP EP T/R | Buy | |
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TPS40061PWPG4 | Texas Instruments | DC to DC Controllers | DC/DC Cntrlr Single-OUT Step Down 1000kHz 16-Pin HTSSOP EP Tube | Buy | |
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TPS40061PWP | Texas Instruments | DC to DC Controllers | DC/DC Cntrlr Single-OUT Step Down 1000kHz 16-Pin HTSSOP EP Tube | Buy | |
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TPS2375PWRG4 | Texas Instruments | Power Over Ethernet - PoE Controllers | Power Over Ethernet PD Controller 0V 57V 13W 8-Pin TSSOP | Buy | |
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TPS2375PWR | Texas Instruments | Power Over Ethernet - PoE Controllers | Power Over Ethernet PD Controller 0V 57V 13W 8-Pin TSSOP | Buy | |
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TPS2375PW-1 | Texas Instruments | Power Over Ethernet - PoE Controllers | Power Over Ethernet PD Controller 0V 57V 13W 8-Pin TSSOP | Buy | |
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TPS2375PW | Texas Instruments | Power Over Ethernet - PoE Controllers | Power Over Ethernet PD Controller 0V 57V 13W 8-Pin TSSOP | Buy | |
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TPS2375PWR-1 | Texas Instruments | Power Over Ethernet - PoE Controllers | Power Over Ethernet PD Controller 0V 57V 13W 8-Pin TSSOP | Buy | |
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TPS2375PW-1G4 | Texas Instruments | Power Over Ethernet - PoE Controllers | Power Over Ethernet PD Controller 0V 57V 13W 8-Pin TSSOP | Buy | |