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Product Detailed Parameters
- Description：IC POE CNTRL 1 CHANNEL 28TSSOP
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- Type：Controller (PSE)
- Number of Channels：1
- Power - Max：15.4 W
- Internal Switch(s)：Yes
- Auxiliary Sense：No
- Standards：802.3af (PoE)
- Voltage - Supply：32V ~ 60V
- Current - Supply：1mA
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：28-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：28-TSSOP
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Overview
The MAX5922BEUI+T is a single-port network power switch designed for +48V Power-over-LAN applications. It operates within a supply voltage range of 32 V to 60 V and draws a typical operating current of 1 mA. The device supports hot-swap insertion with an internal switch capable of handling up to 1.026 W of power dissipation. It functions in temperatures from -40°C to +85°C and is housed in a 28-TSSOP surface-mount package.
Feature Summary
- Integrated internal high-side switch for single-port network power delivery
- Supports hot-swap insertion without system disruption
- Compliant with IEEE 802.3af standards for powered devices
Applications
- IEEE 802.3af-compliant Power-Sourcing-Equipment (PSE)
- Single-port network power switches for VoIP phones
- Wireless access point power distribution
Procurement Notes
Verify the specific suffix (+T) indicates tape-and-reel packaging when ordering. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure the component matches the exact part number MAX5922BEUI+T to guarantee correct electrical characteristics and pinout compatibility.
Selection Notes
Select this component for applications requiring a single-port, +48V PoE solution with integrated switching capabilities. It is suitable for designs needing hot-swap functionality and IEEE 802.3af compliance. Consider the 28-TSSOP package constraints and thermal dissipation requirements relative to the 1.026 W power rating during PCB layout.
Part Context
This part belongs to the MAX5922 series of hot-swap voltage controllers by Analog Devices/Maxim Integrated. It serves as a specialized PMIC for Ethernet-based power distribution, distinguishing itself from general-purpose switches by its integration of detection and collision avoidance features required for PoE standards.
Replacement Considerations
The MAX5922AEUI+T is a documented variant within the same series. Verify if the 'A' grade offers different performance specifications compared to the 'B' grade before substitution.
