URA2405LD-20WR2 Datasheet, PDF (2/10 Pages) MORNSUN Science& Technology Ltd. – REGULATED SINGLE/DUAL OUTPUT DC-DC CONVERTER

Note: ①Series with suffix “H” are heat sink mounting; series with suffix “A2S” are chassis mounting，with suffix “A4S” are DIN-Rail mounting, for example
URB2405LD-20WHR2A2S is chassis mounting of with heat sink,URB2405LD-20WR2A4S is DIN-Rail mounting of without heat sink;If the application has a
higher requirement for heat dissipation, you can choose modules with heat sink;
②Absolute maximum rating without damage on the converter;
③For dual-output-converters the given value is for one output (for both outputs the same value);
④The efficiency of "A2S" and "A4S" is approx. 2% lower for the protection of inverse polarity.
INPUT SPECIFICATIONS
Item
Test conditions
Input Surge Voltage (1sec. max.)
24VDC Input
48VDC Input
Start-up Voltage
24VDC Input
48VDC Input
Under Voltage Shutdown
24VDC Input
48VDC Input
Start-up time
Nominal input & constant resistance load
Models ON
Ctrl^*
Models OFF
Input current (Models OFF)
Input filter
Note:*The Ctrl control pin voltage is refer to GND.
Min.
Typ.
Max.
Unit
-0.7
--
50
-0.7
--
100
--
--
9
VDC
--
--
17.8
7.5
--
--
16
--
--
--
10
--
ms
Ctrl open or connect TTL high level (2.5-12VDC)
Ctrl connect GND or low level (0-1.2VDC)
--
1
--
mA
Pi Filter
OUTPUT SPECIFICATIONS
Item
Test Conditions
Min.
Typ.
Max.
Unit
Positive Output Voltage Accuracy
Negative Output Voltage Accuracy
--
±1
±3
Output Voltage Balance
Line Regulation
Load Regulation
Cross Regulation
Transient Recovery Time
Transient Response Deviation
Temperature Drift
Dual output，Balance load
Full load, Input voltage from low to high
10% to 100% load
Dual output,main output 50% load,
Supplement output from 10% to 100% load
25% load step change
100% load
--
±0.5
±1
--
±0.2
±0.5
%
--
±0.5
±1
--
--
±5
--
300
500
µs
--
±3
±5
%
--
±0.02
--
%/°C
Ripple & Noise *
Output voltage Trim
20MHz Bandwidth
--
70
100
mVp-p
--
±10%
--
3.3V output
--
3.9
--
5V output
--
6.2
--
Output Over Voltage Protection
9V output
12V output
--
10.8
--
VDC
--
15
--
15V output
--
18
--
24V output
--
30
--
Over Current Protection
Output Short Circuit Protection
Input voltage range
--
160
--
%
Hiccup, Continuous, automatic recovery
Note:* Ripple and noise tested with “parallel cable” method. See detailed operation instructions at DC-DC application notes.
COMMON SPECIFICATIONS
Item
Test Conditions
Isolation Voltage
Input-Output, Tested for 1 minute ,leakage current less than 1 mA
Isolation Resistance
Input-Output, Test at 500VDC
24V output
Isolation Capacitance
Others
Input/Output,100KHz/0.1V
URB2424LD-20WR2 PWM mode
Switching Frequency
Others
PWM mode
MTBF
MIL-HDBK-217F@25℃
Safety approvals
URB48XXLD-20WR2
Others
Min. Typ. Max. Unit
1500
--
1000
--
-- VDC
--
MΩ
--
2000
--
pF
--
1000
--
315
--
345
KHz
--
300
--
1000
--
-- K hours
UL60950, EN60950
EN60950
The copyright and authority for the interpretation of the products are reserved by MORNSUN
URA_LD-20WR2 & URB_LD-20WR2
2013.11.29-A/3
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