URB2403LD-3000 Datasheet, PDF (2/3 Pages) MORNSUN Science& Technology Ltd. – 3A CONSTANT CURRENT,WIDE INPUT ISOLATED SINGLE OUTPUT DC-CC CONVERTER

COMMON SPECIFICATIONS
Item
Test conditions
Storage humidity
Operating temperature
Storage temperature
Maximum case temp. On work temperature curve
Lead temperature
1.5mm from case for 10 seconds
Isolation voltage
Test for 1 minute and 1mA max
Isolation resistance
Test at 500VDC
Isolation capacitance 100kHz/0.1V
Switching frequency Nominal, full load
Cooling
Case material
MTBF
MIL-HDBK-217F(25℃)
Weight
OTHER SPECIFICATIONS
Item
Test conditions
EMI(CE)
EMI(RE)
With external component，
Refer to figure 6
ESD
R/S
BCI
Without external component
Min.
Typ. Max. Units
5
--
95
%
-40
--
71
-55
--
125
℃
--
--
105
--
--
300
1500
--
1000
--
--
VDC
--
MΩ
--
2000
--
pF
--
300
--
kHz
Free Air Convection
Nickel- coated copper(Six-sided)
1000
--
--
k hours
--
40
--
g
Standard
CISPR25
CISPR25
ISO 10605
ISO 11452-2
ISO 11452-4
Level
CLASS І
CLASS І
Air ±8KV / Contact
±6KV perf. Criteria B
50V/m perf. Criteria A
50mA perf. Criteria A
RECOMMENDED CIRCUIT
① Recommended Circuit
Vi n
+Vo
Cin
DC DC Cout
GND
0V
(Figure 1)
If you want to further decrease the output
ripple, you can increase capacitance
properly or choose capacitors with low
ESR. However, the capacitance can’t
exceed the maximum capacitor load in the
list.
② Recommended capacitance
Capacitanc e
Output
Cout(μF) Cin(μF)
Voltage(V)
3.3
220
100
(Table 1)
③ No parallel connection or plug and
play.
DERATING CURVE
Temperature Derating Curve
With external component，
Transient conducted immunity _{Refer to figure 6}
Transient coupled interference Without external component
ISO 7637-2
ISO 7637-3
Level Ⅳ perf. Criteria B
Level Ⅳ perf. Criteria B
Operating Temp.(℃)
(Figure 2)
EFFICIENCY CURVE
EFT/B
SURGE
Safety
With external component，
Refer to figure 7
IEC 61000-4-4
IEC 61000-4-5
ISO16750
±2KV perf. Criteria B
±2KV perf. Criteria B
TRIM APPLICATION & TRIM RESISTANCE
Application circuit for TRIM (Part in broken line is the interior of models)
+ Vo
+ Vo
R1
R3
Vre f
R2
RT
Tr i m
R1
R3
Vre f
R2
0V
Trim up
(Figure 5)
0V
Trim down
RT
Tr i m
Vo
Parameter
R1(kΩ)
R2(kΩ)
R3(kΩ)
Vref(V)
3.3
(VDC)
4.801
2.863
33
1.24
(Table 2)
Formula for resistance of Trim
up: RT =
aR2
R2 -a
-R3
Vr e f
a= _{Vo’-Vref} R1
a R1
down: RT = _R1-a -R3
Vo ’ - Vr e f
a=
R2
Vr e f
Note: Value for R1, R2, R3, and Vref refer to the above table ( please refer to above table for the value
of R1, R2, F3 & Vref (value above are calculated based on internal circuits, the actual value can
be available value that similar to the suggested one).
R_T: Resistance of Trim
a: User-defined parameter, no actual meanings .
Vo’: The trim up/down voltage.
Input Voltage VS Efficiency curve
75
74
73
72
71
70
69
68
67
66
65
9.0 12.0 18.0 21.0 24.0 27.0 30.0 33.0 36.0
Input Voltage(V)
(Figure 3)
Output Voltage VS Efficiency curve
80
70
60
50
40
30
20
10
0
0.388 0.608 1.049 1.269 1.707 2.071 2.363 2.73 3.026 3.247
Output Voltage(V)
(Figure 4)
The copyright and authority for the interpretation of the products are reserved by MORNSUN
Specifications subject to change without notice.
URB2403LD-3000 2013.06.05-A/1 Page 2 of 3