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UltraFlex(DC) Series
48 VDC-input modular power supplies
Product Data | Models | Specifications | Similar Series
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There's no need to
panic just because you need a power supply that doesn't seem
to be available from stock. In just one week or less, Lambda
will ship a prototype 600W DC input supply with any output
voltages and signals you need.
With leading edge and proprietary circuit design, 280 KHz
fixed frequency converters, synchronized circuits, planar
magnetics, advanced thermal management and surface mount
technology, these power supplies offer state-of-the-art power
densities, exceptional flexibility, reliability, and
outstanding performance.
Lambda's UltraFlex Series gives you the flexibility you need
to cope with today's fast paced new product development
cycles and relentless time-to-market schedules.
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Customized
Power Supplies
Up to 10 Outputs
Universal AC Input or
48VDC Input
Compact Packages
Fully Regulated &
Independent Outputs
System Interface &
Monitoring Signals
International Safety
Agency Approvals
Conducted EMI B
Input Transient Protection
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UltraFlex(DC)
Series Available Models <
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UltraFlex(DC) Series
Specifications
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DC Input
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36-75VDC on Case C.
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Efficiency
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75% typical at nominal line voltage.
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Inrush Current Limiting
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Less than 40amps peak.
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EMI
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Conducted EMI conforms to EN55022,
Level B, and FCC Docket 20780 Part 15, Subpart J,
Class B.
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Output Voltage Adj Range
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±10% of nominal output voltage on
all.
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Line Regulation
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Less than 0.1% for line variations
from 85-265VAC. Less than 0.2% for dual output
modules.
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Load Regulation
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Less than 0.4% for load variations
from no load to full load and full load to no load.
Less than 0.8% for dual output modules.
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Cross Regulation
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Less than 0.1% between single output
modules. Less than 3% between dual outputs with 25%
load change on high current output.
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Ripple and Noise
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For outputs 12V or less, 50mV pk to
pk or 15mV RMS. For outputs greater than 12V, 1% pk to
pk or .33% V RMS. For dual outputs, 1% pk to pk or
.33% V RMS 20mHz bandwidth.
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Preload
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External preload is not required on
single output modules. Dual output modules require 1A
minimum load on the highest current output (Output
#1).
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Hold-up Time
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The output voltage will remain
within regulation limits for 20msec at full load with
nominal 115/230VAC line input.
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Overvoltage Protection
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Internal circuitry will shut down
the individual output module. Reset the OVP by
recycling the input power.
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Overload Protection
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Overcurrent protection on single
output modules limits the current. Upon removal of the
overload condition, normal operation resumes
automatically.
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Cooling
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Cooling is provided via an internal
DC operated ball-bearing fan.
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Operating Temperature Range
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Full operation from 0° to +50°C with
100% rated power on most models. Derate linearly from
+50°C to 50% power at +65°C.
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Storage Temperature
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-40°C to +85°C.
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Temperature Coefficient
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0.02%/ °C.
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Isolation
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Conforms to safety agency
requirements.
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Remote Sensing
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Remote sense compensates for total
cable drop of up to 0.5VDC. Available on all outputs.
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Thermal Protection
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The power supply will shut down in
the event of an overtemperature condition (the fan
will continue to operate). To restore operation, the
supply must cool down and the AC input must be
recycled.
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Mounting
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Two mounting surfaces on all models.
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Military Specifications
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SHOCK - MIL-STD-810E, Method
516.4,Procedure 1. VIBRATION - MIL-STD-810E, Method
514.4,Category I, TP1.
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Safety Agency Approval
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UL 1950, CSA 22.2 No.220 and/or 234
Bulletin 1902A, EN 60950, EN 41003 & BS 7002, CE
(Low Voltage Directive).
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Warranty
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3 years.
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Similar
Series
UltraFlex
AC AC Input
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