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LTC4279IS#PBF

POE/POE+/LTPOE++/PSE CONTROLLER, SOIC-16

LTC4279IS#PBF - POE/POE+/LTPOE++/PSE CONTROLLER, SOIC-16

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Tootja toote nr:
LTC4279IS#PBF
Tellimiskood:
2708141
Tehniliste andmete leht:
LTC4279IS#PBF   Datasheet
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Toote ülevaade

The LTC4279IS#PBF from Linear Technology is a single port PoE/PoE+/LTPoE++ PSE controller in 16 pin SOIC package. The LTC4279 is an autonomous single port power sourcing equipment (PSE) controller designed for use in IEEE 802.3at Type 1, Type 2 and LTPoE++ compliant PoE systems. It provides fully autonomous IEEE 802.3 and LTPoE++ compliant operation without a microcontroller. The LTC4279 simplifies PSE implementation, requiring only a single supply and a small number of passive support components. Delivers lowest-in-industry heat dissipation by utilizing a low-RDS(ON) external MOSFET and a 0.1ohm sense resistor, eliminating need for expensive heat sinks and increasing efficiency. PD discovery uses a proprietary dual-mode 4-point detection mechanism ensuring excellent immunity from false PD detection. Midspan PSEs are supported with physical layer classification and a 2.5second backoff timer. Legacy and custom PDs are supported with pin-selectable LEGACY and UltraPWR modes.
  • Supports LTPoE++ up to 90W
  • Robust short-circuit protection
  • Cable surge protected ±80V OUT pin
  • Classification dependent ICUT and ILIM current thresholds
  • Supports 2 pair and 4 pair output power
  • Ultra PWR mode supports custom PDs up to 123W
  • Pin selectable detection backoff timer for midspans
  • LEGACY mode detects and powers pre-IEEE specification PDs
  • UltraPWR mode turns on and powers custom PDs requiring high inrush and operational currents
  • Status LED pin, operating temperature range from -40°C to 85°C

Rakendused

Power Management, Security, Communications & Networking

Tooteteave

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:
57V

:
-

:
25V

:
SOIC

:
16Pins

:
6.3%

:
-

:
-40°C

:
85°C

:
-

:
MSL 1 - Unlimited
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Tehnilised dokumendid (1)

Ei ladustata enam

3,47 €

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No longer stocked:: No Longer Manufactured::
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