MAX5992AETG+ by Analog Devices

Multisource, High-Power, High-Performance Powered Device Controllers

Status: Active
Series: MAX5992A
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The MAX5992A/MAX5992B multisource, high-power, high-performance powered device (PD) controllers provide a complete interface control for PDs to comply with the IEEE® 802.3af/at standard in a Power-over-Ethernet (PoE) system. The devices provide the PD with a detection signature, classification signature, and an isolation MOSFET driver with current-limit control. In addition, the intelligent maintain power signature (MPS) and active FET bridge control make the PD more power efficient. The devices feature a active-low SIG_OK output signal for high-power Multi-2P PD applications. The selectable inrush-current modes allow Multi-PD, fiber-to-the-home/fiber-to-the-building (FTTH/FTTB) operation in redundancy applications. The devices feature an input UVLO, wide hysteresis, and long deglitch time to compensate for twisted-pair cable resistive drop to assure glitch-free transition during power-on/power-off conditions. The devices can operate from a 20.8V low-voltage supply by a selectable UVLO. The devices can withstand up to 100V at the input. The devices support a 2-Event classification method as specified in the IEEE 802.3at standard and provide a signal to indicate when probed by Type 2 power-sourcing equipment (PSE). The devices detect the presence of a wall adapter power-source connection and allow a smooth switchover from the PoE power source to the wall power adapter. Moreover, the selectable WAD_SEL supports seamless power transition from a wall adapter to PoE if PoE is already enabled. The devices also provide a power-good (PG) signal, 2-level current limit, foldback, and overtemperature protection. A sleep mode feature provides low-power consumption while supporting MPS. An ultra-low power sleep mode feature further reduces power consumption to comply with ultra-low power requirements while still supporting MPS. The devices also feature an LED driver that is automatically activated during sleep/ultra-low power sleep/MPS mode. The MAX5992A has 38.6V PoE UVLO and the MAX5992B has 35.4V PoE UVLO and feature a 6.5s sleep mode delay. The MAX5992A/MAX5992B are available in a 24-pin, 4mm x 4mm, TQFN power package and are rated over the -40°C to +85°C extended temperature range.

Where to Buy

Prices starting from US$1.86

Distributor Stock
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Farnell
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Features

IEEE 802.3af/at Compliant
UPoE Compatible
High-Power 2x2P/Multi-PD Synchronization/Multi-PD Redundancy
Integrated Active FET Bridge Control and Back-Powering Protection
Selectable UVLO for Medical/Industrial Applications
2-Level Inrush-Current Control
Intelligent MPS
Simplified Wall Adapter Interface for Seamless Power Transition
Ultra-Low-Power/Sleep Mode
2-Event Classification or an External Wall Adapter Indicator Output
PoE Classification 0 to 5
Gate Driver for External Isolation MOSFET
Selectable Current Limit and Foldback
RJ45 12V Supply Input
6.5s Sleep Mode Delay

Specifications

Compliance IEEE 802.3afIEEE 802.3at
PWM No
UVLO Threshold (V) 38.6
Package/Pins TQFN/24
Oper. Temp. (°C) -40 to +85
BudgetaryPrice (See Notes) 1.77

MAX5992AETG+ Power Management ICs - PMIC by Analog Devices

POWERED DEVICE CONTROLLER, -40 TO 85DEGC

Semiconductors - ICs
> Power Management ICs - PMIC
> Power-over-Ethernet - POE Controllers
Status: Unknown
Series: -
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

PoE Standard IEEE 802.3af, 802.3at
PoE Controller Type PD Controller
Input Voltage 60V
UVLO 38.6V
No. of Pins 24Pins
No. of Channels 1Channels
Power Max 200W
RoHS Compliant Yes

Alternative Descriptions

Powered Device Controller, -40 To 85Degc | Newark Electronics
Multisource, High-Power, High- | Analog Devices

Frequently Asked Questions

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Is the MAX5992AETG+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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