URF_LP-20WR3_15 Datasheet, PDF (2/6 Pages) MORNSUN Science& Technology Ltd. – DC/DC Converter

DC/DC Converter
URF_LP-20WR3 Series
24VDC input
Input impulse Voltage (1sec. max.)
48VDC input
Starting Voltage
24VDC input
48VDC input
under-voltage turn-off
24VDC input
48VDC input^①
Starting Time
Input Filter
Nominal input& constant resistance load
Hot Plug
Module switch on
Ctrl*
Module switch off
Input current when switched off
Note: *The voltage of Ctrl pin is relative to input pin GND.
-0.7
--
50
VDC
-0.7
--
100
--
--
9
--
--
18
5.5
6.5
--
14.0
15.5
--
--
10
--
Pi filter
VDC
ms
Unavailable
Ctrl suspended or connected to TTL high level (3.5-12VDC)
Ctrl pin connected to GND or low level (0-1.2VDC)
--
4
7
mA
Output Specifications
Item
Operating Conditions
Min.
Typ.
Max.
Unit
Output Voltage Accuracy
--
±1
±3
Line Regulation
Full load, the input voltage is from low voltage to
high voltage
--
±0.2
±0.5
%
Load Regulation
0%-100% load
--
±0.5
±1
Transient Recovery Time
--
300
500
µs
Transient Response Deviation
25% load step change
3.3V,5V output
Others
--
±5
±8
%
--
±3
±5
Temperature Drift Coefficient Full load
--
--
±0.03
%/℃
Ripple & Noise*
20MHz bandwidth,5%-100% load
--
50
100
mV p-p
Over-voltage Protection
110
--
160
%Vo
Output Voltage Regulation Trim
Input voltage range
Over-current Protection
--
±10
--
%Vo
110
--
190
%Io
Short circuit Protection
Hiccup, continuous, self-recovery
Note: *Ripple and noise are measured by “parallel cable” method, please see DC-DC Converter Application Notes for specific operation.
0%-5% load ripple&Noise is no more than 5%Vo.
General Specifications
Item
Operating Conditions
Min.
Typ.
Max.
Unit
Insulation Voltage
Input-output, with the test time of 1 minute and the
leak current lower than 1mA
3000
--
--
VDC
Insulation Resistance
Input-output, insulation voltage 500VDC
1000
--
--
MΩ
Isolation Capacitance
Input-output, 100KHz/0.1V
--
500
--
pF
Operating Temperature
Storage Temperature
Derating if the temperature is ≥55℃ (see Fig. 1)
-40
--
+85
℃
-55
--
+125
Storage Humidity
Non-condensing
5
--
95
%RH
Pin Welding Resistance
Temperature
Welding spot is 1.5mm away from the casing, 10
seconds
--
--
+300
℃
Vibration
10-55Hz, 10G, 30 Min. along X, Y and Z
Switching Frequency *
PWM mode
--
270
--
KHz
MTBF
MIL-HDBK-217F@25℃
1000
--
--
K hours
Note:*This series of products using reduced frequency technology, the switching frequency is test value of full load,When the load is reduced to below 50%, the
switching frequency decreases with decreasing load.
Physical Specifications
Casing Material
Package Dimensions
Horizontal package
A2S wiring package
Plastic (UL94-V0)
51.50*26.50*12.00 mm
76.00*31.50*21.20 mm
2015.08.12-A/2
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