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HONEYWELL LS2A4L
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ARTESYN LPQ172

Product Name​
Artesyn Embedded Technologies LPQ172 quad-output AC-DC open-frame power supply.
Introduction​
LPQ172 belongs to the Artesyn LPQ170 series of enclosed or open-frame industrial power supplies. It converts universal AC or DC input into four regulated outputs for ITE, commercial and embedded systems, with power-factor correction, remote sense, current sharing and full protection functions.
Category:
Description
Technical Specifications​
Input 85 to 264 volts AC, 47 to 67 hertz, or 120 to 300 volts DC, inrush current 38 amperes maximum cold start at 25 degrees Celsius. Output 1 is 5 volts DC adjustable 3.3 to 5.5 volts, 15 amperes convection, 30 amperes forced air, 32 amperes peak, regulation 2 percent, ripple 50 millivolts. Output 2 is 12 volts DC, 6 amperes convection, 8 amperes forced air, 10 amperes peak, regulation 3 percent, ripple 120 millivolts. Output 3 is minus 12 volts DC adjustable minus 12 to minus 15 volts, 1.5 amperes convection, 3 amperes forced air, 3.5 amperes peak, regulation 3 percent. Output 4 is 25 volts DC adjustable 3.3 to 25 volts, 2 amperes convection minimum load 0.5 ampere, 5 amperes forced air, 5.5 amperes peak, regulation 3 percent. Total output 110 watts convection, 175 watts with 30 CFM forced air; with cover these ratings fall to 75 watts convection and 130 watts forced air. Standby output 5 volts DC at 200 milliamps. Efficiency 75 percent typical, power factor 0.99 typical. Hold-up time 20 milliseconds at 175 watts nominal line. EMI built-in filter meets EN55022 and CISPR22 Class B conducted. Safety approvals UL60950, CSA22.2, CB, CE, NEMKO. Dimensions 8.50 by 4.25 by 1.50 inches, equal to 216 by 108 by 38.1 millimeters. Operating temperature 0 to 70 degrees Celsius with derating, storage minus 40 to 85 degrees Celsius, humidity 5 to 95 percent non-condensing.
Functional Features​
Active power-factor correction, adjustable main and auxiliary outputs, single-wire current sharing, remote sense on main output, power-fail signal, remote inhibit, DC OK signal, overvoltage protection, overload protection, thermal protection, built-in EMI filter.
Application Scenarios​
Industrial computers, programmable logic controller cabinets, test equipment, networking hardware, medical auxiliary power where quad 5/12/negative 12/adjustable 25 volt rails are required.
Performance Parameters​
110 watts natural convection, 175 watts forced-air, 5-volt rail up to 30 amperes forced, 12-volt rail up to 8 amperes forced, minus 12-volt rail up to 3 amperes forced, 25-volt rail up to 5 amperes forced, PFC 0.99, standby 5 volts 200 milliamps.
Material Composition​
Aluminum heatsink structure, steel or aluminum chassis depending on open-frame or enclosed build, FR4 power PCB, magnetic ferrite and copper transformer assemblies, plastic connector insulators.
Structural Characteristics​
Low-profile open-frame or enclosed quad-output construction, chassis-mount format, multiple output terminals, control/signal headers for remote sense, power-fail, remote inhibit and DC OK, optional cover version with reduced thermal ratings.
Working Principle​
The AC input passes through the EMI filter and active PFC stage to create a regulated DC bus. DC-DC converters produce isolated 5-volt, 12-volt, negative 12-volt and adjustable 25-volt outputs. Feedback and remote-sense circuits regulate voltage, while current-share and protection circuits balance load and guard against overcurrent, overvoltage and overtemperature.
Installation Requirements​
Chassis-mount with screws using the 216 by 108 millimeter footprint, provide 85 to 264 volts AC or 120 to 300 volts DC with proper fusing, maintain 30 CFM airflow for 175-watt operation, connect remote-sense pairs only on the 5-volt main if compensation is required, ensure minimum load on the 25-volt output, bond safety ground, and keep clearance for the 38.1 millimeter height plus cover if used.
Usage Precautions​
Do not exceed 264 volts AC or 300 volts DC input, use forced air for full 175-watt output, reduce output when using the cover version, set adjustment pots only within the stated 3.3 to 5.5 volt, minus 12 to minus 15 volt and 3.3 to 25 volt ranges, avoid shorting outputs, and verify UL/CB/CE markings before deployment in certified equipment.
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