STHS4257L1 - IEEE 802.3af PoE Powered Device (PD) interface controller

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STMicroelectronics

Part number	STHS4257L1
Manufacturer	STMicroelectronics
File Size	229.44 KB
Description	IEEE 802.3af PoE Powered Device (PD) interface controller
Datasheet	STHS4257L1 Datasheet
Note	This datasheet PDF includes multiple part numbers: STHS4257L1, STHS4257A. Please refer to the document for exact specifications by model.
Additional preview pages of the STHS4257L1 datasheet.

5 1.1 Pin descriptions 7 1.1.1 1.1.2 1.1.3 1.1.4 1.1.5 1.1.6 Classification (RCLASS) . .

IEEE 802.3af-compliant interface for Powered Devices (PDs) Integrated 100V, 450mA power MOSFET low side switch Inrush current limit Normal operation current limit Integrated 25kΩ signature resistor Signature disable (STHS4257A1/L1) Resistor-programmable classification current (Class 0-4) Power Good output, open drain Undervoltage Lockout (UVLO) Thermal overload protection (two-step for the STHS4257A/L) Latch (L).

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Published: May 2, 2009 |