MCZ34670: IEEE 802.3af Powered Devices | NXP Semiconductors

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MCZ34670 IEEE 802.3af Powered Devices

MC34670
End of Life
  • This page contains information on a product that is no longer manufactured (discontinued). Specifications and information herein are available for historical reference only.

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The NXP® MC34670 combines a power interface port for IEEE 802.3af powered devices and a high performance current mode switching regulator. It allows you to build PDs with a minimum of external components by integrating the required IEEE 802.3af functions with all functions necessary to build a high efficiency DC/DC converter.

  • Fully supports the IEEE802.3af standard and provides complete signature and power classification functions
  • Controls inrush current limiting and incorporates adjustable undervoltage lockout
  • The switching regulator provides excellent line and load regulation and drives an external power MOSFET with sense resistor

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N true 0 PSPMC34670en 3 Application Note Application Note t789 1 Data Sheet Data Sheet t520 1 User Guide User Guide t792 1 en_US 2 1 3.0 English The 34670 combines a Power Interface Port for IEEE 802.3af Powered Devices (PD) and a high performance current mode switching regulator. 1153858995820729400677 PSP 1.3 MB None None documents None 1153858995820729400677 /docs/en/data-sheet/MC34670.pdf 1282609 /docs/en/data-sheet/MC34670.pdf MC34670 N N 2016-10-31 MC34670, IEEE 802.3af PD with Current Mode Switching Regulator /docs/en/data-sheet/MC34670.pdf /docs/en/data-sheet/MC34670.pdf Data Sheet N Y 980000996212993340 2022-12-07 pdf N en Dec 4, 2006 Data Sheet t520 Data Sheet Data Sheet Y N MC34670, IEEE 802.3af PD with Current Mode Switching Regulator 2 3.0 English This document shows how to configure the IC to comply to the IEEE 802.3af standard and how to set-up the DC/DC converter part of the IC. 1155314157434736189588 PSP 1.3 MB None None documents None 1155314157434736189588 /docs/en/application-note/AN3279.pdf 1339140 /docs/en/application-note/AN3279.pdf AN3279 N N 2016-10-31 AN3279, MC34670 Usage and Configuration /docs/en/application-note/AN3279.pdf /docs/en/application-note/AN3279.pdf Application Note N Y 645036621402383989 2022-12-07 pdf N en Feb 23, 2009 Application Note t789 Application Note Application Note Y N AN3279, MC34670 Usage and Configuration false en_US en User Guide User Guide 1 3 1.0 English Kit User's Guide 1235060496069721336792 PSP 803.8 KB None None documents None 1235060496069721336792 /docs/en/user-guide/KT34670UG.pdf 803831 /docs/en/user-guide/KT34670UG.pdf KT34670UG documents N N 2016-10-31 KIT34670EGEVBE, Evaluation Board - User Guide /docs/en/user-guide/KT34670UG.pdf /docs/en/user-guide/KT34670UG.pdf User Guide N 132339537837198660 2023-06-19 pdf N en Jul 15, 2008 132339537837198660 User Guide Y N KIT34670EGEVBE, Evaluation Board - User Guide false 0 MC34670 downloads en true 1 Y PSP Application Note 1 /docs/en/application-note/AN3279.pdf 2016-10-31 1155314157434736189588 PSP 2 Feb 23, 2009 Application Note Application Note This document shows how to configure the IC to comply to the IEEE 802.3af standard and how to set-up the DC/DC converter part of the IC. None /docs/en/application-note/AN3279.pdf English 1339140 None Application Note 2022-12-07 N /docs/en/application-note/AN3279.pdf AN3279, MC34670 Usage and Configuration /docs/en/application-note/AN3279.pdf documents 645036621402383989 Application Note N Y en None Y t789 pdf 3.0 N N AN3279, MC34670 Usage and Configuration 1.3 MB AN3279 N 1155314157434736189588 Data Sheet 1 /docs/en/data-sheet/MC34670.pdf 2016-10-31 1153858995820729400677 PSP 1 Dec 4, 2006 Data Sheet Data Sheet The 34670 combines a Power Interface Port for IEEE 802.3af Powered Devices (PD) and a high performance current mode switching regulator. None /docs/en/data-sheet/MC34670.pdf English 1282609 None Data Sheet 2022-12-07 N /docs/en/data-sheet/MC34670.pdf MC34670, IEEE 802.3af PD with Current Mode Switching Regulator /docs/en/data-sheet/MC34670.pdf documents 980000996212993340 Data Sheet N Y en None Y t520 pdf 3.0 N N MC34670, IEEE 802.3af PD with Current Mode Switching Regulator 1.3 MB MC34670 N 1153858995820729400677 User Guide 1 /docs/en/user-guide/KT34670UG.pdf 2016-10-31 1235060496069721336792 PSP 3 Jul 15, 2008 User Guide Kit User's Guide None /docs/en/user-guide/KT34670UG.pdf English documents 803831 None 132339537837198660 2023-06-19 N /docs/en/user-guide/KT34670UG.pdf KIT34670EGEVBE, Evaluation Board - User Guide /docs/en/user-guide/KT34670UG.pdf documents 132339537837198660 User Guide N en None Y pdf 1.0 N N KIT34670EGEVBE, Evaluation Board - User Guide 803.8 KB KT34670UG N 1235060496069721336792 true Y Products

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