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MAX5940AESA +BOM

Powered Device Interface Controller 8-Pin SOIC N

Hersteller:

Analog Devices, Inc
Herstellerteil #:

MAX5940AESA
Datenblatt:

MAX5940AESA Datenblatt (PDF)
Type:

Controller (PD)
Number Of Channels:

1
Power - Max:

12.95 W
Internal Switch(s):

Yes
EDA/CAD Modelle:

Fordern Sie kostenlose CAD-Modelle für an MAX5940AESA

Email: [email protected]

Skype: live:.cid.ab6b29428937b76

Tel: +852 95804164

MAX5940AESA Allgemeine Beschreibung

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.

Anwendung

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

Spezifikationen

Category	Integrated Circuits (ICs)Power Management (PMIC)Power Over Ethernet (PoE) Controllers	Series	-
Type	Controller (PD)	Number of Channels	1
Power - Max	12.95 W	Internal Switch(s)	Yes
Auxiliary Sense	No	Standards	802.3af (PoE)
Voltage - Supply	36.6V ~ 67V	Current - Supply	400µA
Operating Temperature	-40°C ~ 85°C	Mounting Type	Surface Mount
Base Product Number	MAX5940

MAX5940, MAX5940A, MAX5940B: Pin Configuration

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