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MAX5942B - IEEE 802.3af Power-Over-Ethernet Interface/PWM Controller

This page provides the datasheet information for the MAX5942B, a member of the MAX5942A IEEE 802.3af Power-Over-Ethernet Interface/PWM Controller family.

Description

The MAX5942A/MAX5942B integrate a complete power IC for powered devices (PD) in a power-over-ethernet (PoE) system.

The MAX5942A/MAX5942B provide a PD interface and a compact DC-DC PWM controller suitable for flyback and forward converters in either isolated or nonisolated designs.

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Datasheet Details

Part number MAX5942B
Manufacturer Maxim Integrated
File Size 447.32 KB
Description IEEE 802.3af Power-Over-Ethernet Interface/PWM Controller
Datasheet download datasheet MAX5942B Datasheet
Additional preview pages of the MAX5942B datasheet.

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Full PDF Text Transcription

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19-3024; Rev 0; 10/03 MAX5942A/MAX5942B IEEE 802.3af Power-Over-Ethernet Interface/PWM Controller for Power Devices General Description The MAX5942A/MAX5942B integrate a complete power IC for powered devices (PD) in a power-over-ethernet (PoE) system. The MAX5942A/MAX5942B provide a PD interface and a compact DC-DC PWM controller suitable for flyback and forward converters in either isolated or nonisolated designs. The MAX5942A/MAX5942B PD interface complies with the IEEE 802.3af standard, providing the PD with a detection signature, a classification signature, and an integrated isolation switch with programmable inrush current control. These devices also feature power-mode undervoltage lockout (UVLO) with wide hysteresis and powergood status outputs.
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