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The LM5072 Powered Device (PD) interface and Pulse-Width-Modulation (PWM) controller provides a complete power solution, fully compliant to IEEE 802.3af, for the PD connecting into Power over Ethernet (PoE) networks. This controller integrates all functions necessary to implement both a PD powered interface and DC-DC converter with a minimum number of external components. The LM5072 provides the flexibility for the PD to also accept power from auxiliary sources such as AC adapters in a variety of configurations. The low RDS(ON) PD interface hot swap MOSFET and programmable DC current limit extend the range of LM5072 applications up to twice the power level of 802.3af compliant PD devices. The 100V maximum voltage rating simplifies selection of the transient voltage suppressor that protects the PD from network transients. The LM5072 includes an easy-to-use PWM controller that facilitates the various single-ended power supply topologies including the flyback, forward and buck. The PWM control scheme is based on peak current mode control, which provides inherent advantages including line feed-forward, cycle-by-cycle current limit, and simplified feedback loop compensation. Two versions of the LM5072 provide either an 80% maximum duty cycle (-80 suffix), or a 50% maximum duty cycle (-50 suffix).
| Tipo | Título | Fecha | ||
|---|---|---|---|---|
| * | Data sheet | LM5072 Integrated 100V Pwr Over Ethernet PD Interface & PWM Cntrl w/Aux Support datasheet (Rev. D) | 29 mar 2013 | |
| Selection guide | Power Management Guide 2018 (Rev. R) | 25 jun 2018 | ||
| EVM User's guide | AN-1430 LM5071 Evaluation Board (Rev. B) | 06 may 2013 | ||
| EVM User's guide | AN-1455 LM5072 Evaluation Board (Rev. A) | 06 may 2013 | ||
| User guide | AN-1521 POEPHYTEREV-I / -E User Guide (Rev. C) | 26 abr 2013 | ||
| User guide | LM5072 12Vout 25W PoE PD Power Eval-Board for IP Camera User Guide | 27 ene 2012 | ||
| User guide | LM5072 5V out 25W IEEE 802.3at Compliant POE+ PD Power Ref Design User Guide | 27 ene 2012 |
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| Paquete | Pasadores | Descargar |
|---|---|---|
| HTSSOP (PWP) | 16 | Ver opciones |
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