MEZS84801A

MEZS84801A Datasheet

mEZS84801A

Part	Datasheet
MEZS84801A	MEZS84801A (pdf)

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mEZS84801A 48V, 12W, PoE Power Supply, IEEE 802.3af Compliant • 37V to 57V PSE Input • 12V Output Voltage • 1A Load Current • No Optocoupler Feedback • Over-Current Protection • Over-Temperature Protection • Over-Voltage Protection • Minimal External Components Do-It-Yourself Option Available Power Derating VIN = 48V, VOUT = 12V Natural Convection Efficiency vs. Load Current VIN = 37V, 48V, and 57V, VOUT = 12V ORDERING INFORMATION Input Voltage Output Voltage Output Current Efficiency MEZS84801A 37 - 57 Up to 85% ELECTRICAL CHARACTERISTICS Input Voltage Range VIN Continuous Output Voltage Set Accuracy Output Voltage Ripple Line Regulation IOUT = 1A Load Regulation Efficiency Switching Frequency Minimum Output Current IOUT = 1A, Include Input Bridge IOUT = 1A Operating Temperature Range Start-Up Time VIN on to VOUT Regulated Calculated MTBF MIL-HDBK-217F 37V to 57V ±4% Typ. 180mV Typ. Typ. Typ. 140kHz Typ. 10mA 0 to 85°C 110ms Typ. 4185x103 hrs NOTE All electrical characteristics are tested under 25°C ambient temperature, VIN = 3.3V unless otherwise noted. 3/1/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change 2017 MPS. All Rights Reserved. DO-IT-YOURSELF SCHEMATIC mEZS84801A 48V, 12W, PoE Power Supply, IEEE 802.3af Compliant T1 749020010A CR1 CR2 VDD VSS VDD D3 J3 VSS R5 24.9kΩ C5 0.1uF DET T2P R6 CLASS VSS FTY

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mEZS84801A
48V, 12W, PoE Power Supply, IEEE 802.3af Compliant
• 37V to 57V PSE Input
• 12V Output Voltage
• 1A Load Current
• No Optocoupler Feedback
• Over-Current Protection
• Over-Temperature Protection
• Over-Voltage Protection
• Minimal External Components

Do-It-Yourself Option Available Power Derating

VIN = 48V, VOUT = 12V

Natural Convection

Efficiency vs. Load Current

VIN = 37V, 48V, and 57V, VOUT = 12V
ORDERING INFORMATION

Input Voltage Output Voltage Output Current

Efficiency

MEZS84801A
37 - 57

Up to 85%

ELECTRICAL CHARACTERISTICS

Input Voltage Range

VIN Continuous

Output Voltage Set Accuracy

Output Voltage Ripple Line Regulation

IOUT = 1A

Load Regulation

Efficiency Switching Frequency Minimum Output Current

IOUT = 1A, Include Input Bridge IOUT = 1A

Operating Temperature Range

Start-Up Time

VIN on to VOUT Regulated

Calculated MTBF

MIL-HDBK-217F
37V to 57V ±4% Typ. 180mV Typ. Typ. Typ. 140kHz Typ. 10mA
0 to 85°C
110ms Typ. 4185x103 hrs

NOTE All electrical characteristics are tested under 25°C ambient temperature, VIN = 3.3V unless otherwise noted.
3/1/2017

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

Preliminary Specifications Subject to Change
2017 MPS. All Rights Reserved.

DO-IT-YOURSELF SCHEMATIC
mEZS84801A
48V, 12W, PoE Power Supply, IEEE 802.3af Compliant

T1 749020010A

CR1 CR2

VDD VSS

VDD D3

J3 VSS

R5 24.9kΩ

C5 0.1uF

DET T2P

R6 CLASS

VSS FTY

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived MEZS84801A Datasheet file may be downloaded here without warranties.

Datasheet ID: MEZS84801A 650007