URB_LD-15W Series
15W, WIDE INPUT , ISOLATED & REGULATED
SINGLE OUTPUT DC-DC CONVERTER
RoHS
FEATURES
●
Efficiency up to 85%
●
4:1 wide input voltage range
●
1.5kVDC input/output isolation
●
Short circuit protection
(automatic recovery)
●
Operating temperature: -40°C ~ +85°C
●
Internal SMD construction
●
Metal shielding package
●
Industry standard pinout
●
MTBF>1,000,000 hours
●
RoHS Compliance
PRODUCT PROGRAM
Input
Model
Voltage (VDC)
Nominal Range
URB2403LD-15W
URB2405LD-15W
URB2412LD-15W
URB2415LD-15W
URB4803LD-15W
URB4805LD-15W
URB4812LD-15W
URB4815LD-15W
48
18-75
80
24
9-36
40
Max.
(1)
Output
Voltage Current
(VDC)
(mA)
3.3
5
12
15
3.3
5
12
15
4000
3000
1250
1000
4000
3000
1250
1000
(2)
Efficiency
(%, Typ.)
80
82
85
85
81
83
85
85
Capacitor
(3)
Load
(max,µF)
10200
4020
1035
705
10200
4020
1035
705
Note: Add suffix
“H”
for heatsink mounted, for example URB2405LD-15WH.
APPLICATION
The URB_LD-15W series offer 15W of output,
with 4:1 wide input voltage of 9-36VDC,
18-75VDC and features 1500VDC isolation,
over current, over voltage and short-circuit
protection, as well as six sided shielding. All
models are particularly suited to industrial,
tele-communications, test equipments power.
INPUT SPECIFICATIONS
Item
Start-up voltage
Input filter
Start-up time
Ctrl
(4)
Test conditions
24 Vin models
48 Vin models
Min.
--
--
Typ.
--
--
LC
Max.
9
18
Units
VDC
--
Models ON
Models OFF
10
--
ms
3.5 - 40VDC or open circuit
0 - 1.2VDC
OUTPUT SPECIFICATIONS
MODEL SELECTION
URB2405LD-15W
Rated Power
Package
Output Voltage
Input Voltage
Product Series
Item
Output power
Test conditions
See product program
Min.
1.5
--
--
--
55
--
--
120
--
--
--
--
Typ.
--
±1
±0.5
±0.2
75
200
±2
130
3.9
6.2
15
18
±10%Vo
±0.02
Max.
15
±3
±1
±0.5
150
500
±5
150
--
--
--
--
VDC
mV
us
%
%
%
Units
W
Output voltage accuracy Refer to recommended circuit
Load regulation
Line regulation
Ripple and noise
From 10% to 100% load
Input voltage from low to high
20MHz Bandwidth
Transient recovery time 25%~50%~25% load or
Transient peak deviation 50%~75%~50% load step change
MORNSUN Science & Technology Co.,Ltd.
Address: No. 5, Kehui St. 1, Kehui development
center, Science Ave., Guangzhou Science City,
Luogang district, Guangzhou,P.R.China.
Tel: 86-20-38601850
Fax:86-20-38601272
E-mail: info@mornsun.cn
Http://www.mornsun-power.com
Over current protection Input voltage range
3.3V output models
Over voltage protection
5V output models
12V output models
15V output models
Output Short Circuit
Trim
Temperature drift (Vout) Refer to recommended circuit
Input voltage range
Hiccup, automatics recovery
--
--
--
--
VDC
%/°C
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
Specifications subject to change without notice.
URB_LD-15W
2013.05.31-A/4
Page 1 of 3
COMMON SPECIFICATIONS
Item
Operating temperature
Storage temperature
Storage humidity
Cooling
Maximum Case temp. On working temperature
Lead temperature
Isolation voltage
Isolation resistance
Isolation capacitance
Switching frequency
MTBF
Case material
Weight
--
1.5mm from case for 10 seconds
Tested for 1 minute and 1mA max
Test at 500VDC
100kHz /0.1V
Nominal, full load
--
--
1500
1000
--
--
1000
Test conditions
Min.
-40
-55
5
Typ.
--
--
--
Max.
85
125
95
%
Units
°C
RECOMMENDED CIRCUIT
1) Recommended circuit
Vin
C in
+Vo
DC
DC
C o ut
G ND
0V
Free Air Convection
--
--
--
--
1000
300
--
105
300
--
--
--
--
--
VDC
MΩ
pF
kHz
k hours
°C
(Fig.1)
In order to obtain better performance for the
DC/DC models. It’s recommended that use input
and output filters as Fig.1 shown.
2) Recommended capacitance
Capacitance
Output
voltage
3.3V,5V
12V,15V
Cout
470μF
220μF
Cin(24V,48V
input)
100μF
M1L-HDBK-217F
Aluminum Alloy
28
--
g
3) No parallel connection or plug and play
TRIM APPLICATION & TRIM RESISTANCE
Application circuit for TRIM (Part in broken line is the interior of models)
+Vo
+Vo
DERATING & EFFICIENCY CURVE
1) Temperature derating curve
(Output Voltage
≤
5V)
R
1
V
ref
R
2
R
3
Trim
V
ref
R
T
R
2
R
1
R
3
Trim
R
T
Output Power (%)
Operating Temp( C)
(Output Voltage > 5V)
0V
Trim up
0V
Trim down
Formula for resistance of Trim
Output Power (%)
up: R
T
=
aR
2
R
2
-a
aR
1
R
1
-a
-R
3
a=
Vref
R
1
Vo’-Vref
Vo’-Vref
R
2
Vref
η%
Operating Temp( C)
2) Efficiency VS nput voltage (Rated load)
URB2405LD-15W
Efficiency VS Input Voltage
90
88
86
84
82
80
78
76
74
72
70
9
12
15
18
21
24
27
30
33
36
Input Voltage (V)
down: R
T
=
-R
3
a=
Note: Value for R1, R2, R3, and Vref refer to the following table.
R
T
: Resistance of Trim
a: User-defined parameter, no actual meanings.
Vo’: The trim up/down voltage
Vo
3.3(VDC)
Resistance
R1(KΩ)
R2(KΩ)
R3(KΩ)
Vref(V)
4.80
2.86
15
1.24
2.88
2.86
10
2.5
10.97
2.86
17.8
2.5
14.50
2.86
17.8
2.5
5(VDC)
12(VDC)
15(VDC)
3) Efficiency VS output Load (Nominal input)
URB2405LD-15W
η%
90
80
70
60
50
40
30
20
10
0
10
20
30
40
50
60
70 80 90 100
Output load %Io
Efficiency VS Output load
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
Specifications subject to change without notice.
URB_LD-15W
2013.05.31-A/4
Page 2 of 3
OUTLINE DIMENSIONS & FOOTPRINT DETAILS
HEATSINK ASSEMBLY& PACKAGE DIAGRAM(WITH HEATSINK)
NOTE
1. Input voltage can’t exceed this value, or will cause the permanent damage.
2. Minimum operating current is 10% of rated current, if less than 10% rated current, output ripple may increase rapidly, the amplitude
≤
1V.
3. Capacitor MAX load tested at nominal input voltage, full load and constant resistive load.
4. The CTRL control pin voltage is referenced to GND.
5. Only typical model listed. Non-standard models will be different from the above, please contact us for more details.
6. All specifications are measured at TA=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified.
7. In this datasheet, all the test methods of indications are based on corporate standards.
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
Specifications subject to change without notice.
URB_LD-15W
2013.05.31-A/4
Page 3 of 3
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