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STHS4257A - IEEE 802.3af PoE Powered Device (PD) interface controller

General Description

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)

Key Features

  • 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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Other Datasheets by STMicroelectronics

Part Number Description
STHS4257A1 IEEE 802.3af PoE Powered Device (PD) interface controller
STHS4257L IEEE 802.3af PoE Powered Device (PD) interface controller
STHS4257L1 IEEE 802.3af PoE Powered Device (PD) interface controller
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STHS2375L IEEE 802.3af PoE Powered Device (PD) interface controller

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STHS4257A, STHS4257A1 STHS4257L, STHS4257L1 IEEE 802.3af PoE Powered Device (PD) interface controller with integrated signature resistor www.datasheet4u.com Features ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ IEEE 802.