MAX5940AESA+T

MAX5940AESA+T

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MAX5940AESA+T
IC POE CNTRL 1 CHANNEL 8SOIC
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$4.25

Price update:a months ago
Available in stock: 3068
45
Serves customers in 45 countries
1000+
Worldwide Manufacturers
$140M
$140M Growth in 5 Years
50.0M+
50M Parts Shipped in 5 Years
Analog Devices Inc./Maxim Integrated

Analog Devices Inc./Maxim Integrated

Maxim Integrated has amalgamated with Analog Devices, imparting an augmented repertoire of superlative mixed-signal and power governance innovations, fostering clientele triumph across diverse sectors. This amalgamation begets a spectrum of resolutions for surmounting the utmost intricate quandaries, spanning from direct current to the expanse of 100 gigahertz, encompassing miniscule nanowatt realms to robust kilowatt domains, spanning the sensor continuum to the ethereal expanse of cloud. Delve deeper into Analog Devices' enriched assemblage on their product dossier.

View All Product from Analog Devices Inc./Maxim Integrated
MAX5940AESA+T Products
The MAX5940A/MAX5940B/MAX5940C/MAX5940D provide complete interface function for a powered device (PD) to comply with the IEEE 802.3af standard in a power-over-ethernet system. MAX5940A/MAX5940B/MAX5940C/MAX5940D provide 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 power-good outputs. The MAX5940A/MAX5940B are available with an absolute maximum rating of 80V and the MAX5940C/MAX5940D are rated for an absolute maximum rating of 90V. An integrated MOSFET provides PD isolation during detection and classification. All devices guarantee a leakage current offset of less than 10μA during the detection phase. A programmable current limit prevents high inrush current during power-on. The device features power-mode UVLO with wide hysteresis and long deglitch time to compensate for twisted-pair cable resistive drop and to assure glitch-free transition between detection, classification, and power-on/-off phases. The MAX5940A/MAX5940C provide an active-high (PGOOD) open-drain output and a fixed UVLO threshold. The MAX5940B/MAX5940D provide both active-high (PGOOD) and active-low (active-low PGOOD) outputs and have an adjustable UVLO threshold with the default value compliant to the 802.3af standard. All devices are designed to work with or without an external diode bridge. The MAX5940A/MAX5940B/MAX5940C/MAX5940D are available in 8-pin SO packages and are rated over the extended temperature range of -40°C to +85°C.

Feature

  • Fully Integrated IEEE 802.3af-Compliant PD Interface
  • PD Detection and Programmable Classification Signatures
  • Less than 10μA Leakage Current Offset During Detection
  • Integrated MOSFET For Isolation and Inrush Current Limiting
  • 90V Absolute Maximum Rating (MAX5940C/MAX5940D)
  • Gate Output Allows External Control of the Internal Isolation MOSFET
  • Programmable Inrush Current Control
  • Programmable Undervoltage Lockout (MAX5940B/MAX5940D Only)
  • Wide UVLO Hysteresis Accommodates Twisted-Pair Cable Voltage Drop
  • PGOOD/Active-Low PGOOD Outputs to Enable Downstream DC-DC Converters
  • -40°C to +85°C Operating Temperature Range

Applications

  • Computer Telephony
  • IP Phones Security Cameras
  • Wireless Access Nodes IEEE 802.3af Power Devices

Product Attributes

TYPE DESCRIPTION Select all
Auxiliary Sense No
Number of Channels 1
Type Controller (PD)
Supplier Device Package 8-SOIC
Product Status Active
Package / Case 8-SOIC (0.154", 3.90mm Width)
Package Tape & Reel (TR)
Mounting Type Surface Mount
Operating Temperature -40°C ~ 85°C
Current - Supply 400µA
Voltage - Supply 36.6V ~ 67V
Standards 802.3af (PoE)
Internal Switch(s) Yes
Power - Max 12.95 W

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$4.25

Price update:a months ago
Available in stock: 3068
Analog Devices Inc./Maxim Integrated

Analog Devices Inc./Maxim Integrated

Maxim Integrated has amalgamated with Analog Devices, imparting an augmented repertoire of superlative mixed-signal and power governance innovations, fostering clientele triumph across diverse sectors. This amalgamation begets a spectrum of resolutions for surmounting the utmost intricate quandaries, spanning from direct current to the expanse of 100 gigahertz, encompassing miniscule nanowatt realms to robust kilowatt domains, spanning the sensor continuum to the ethereal expanse of cloud. Delve deeper into Analog Devices' enriched assemblage on their product dossier.

View All Product from Analog Devices Inc./Maxim Integrated

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