URB4824LD-20W [MORNSUN]
ULTRA WIDE INPUT , ISOLATED & REGULATED SINGLE OUTPUT DC-DC CONVERTER;
| 型号： | URB4824LD-20W |
| 厂家： | 
MORNSUN SCIENCE& TECHNOLOGY LTD. |
| 描述： | ULTRA WIDE INPUT , ISOLATED & REGULATED SINGLE OUTPUT DC-DC CONVERTER DC-DC转换器 输入元件 输出元件 |
| 文件： | 总3页 (文件大小：424K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
URB_LD-20W SERIES
20W, ULTRA WIDE INPUT , ISOLATED & REGULATED
SINGLE OUTPUT DC-DC CONVERTER
RoHS
FEATURES
PRODUCT PROGRAM
● 4:1 Ultra Wide Input Voltage Range
● 1.5kVDC Input/Output Isolation
● Short Circuit Protection
Input
Output
Rated
Capacitor
Load Max(3)
(µF)
Efficiency
(Typ, %)
Model
Voltage (VDC)
Voltage
Current(2)
(mA)
Nominal Range
Max(1)
(VDC)
(Automatic Recovery)
URB2403LD-20W
URB2405LD-20W
URB2412LD-20W
URB2415LD-20W
URB2424LD-20W
URB4803LD-20W
URB4805LD-20W
URB4812LD-20W
URB4815LD-20W
URB4824LD-20W
3.3
5
5000
4000
1667
1333
834
83
86
87
88
88
83
87
88
88
88
18700
9600
1600
1000
500
● Operating Temperature: -40°C ~ +85°C
● Internal SMD Construction
● Metal Shielding Package
● Industry Standard Pinout
● MTBF>1,000,000 hours
24
48
9-36
40
12
15
24
3.3
5
● RoHS Compliance
5000
4000
1667
1333
834
18700
9600
1600
1000
500
18-75
80
12
15
24
APPLICATION
Add suffix “H” for heatsink mounted, for example URB2405LD-20WH.
The URB_LD-20W series offer 20W of output,
with 4:1 ultra 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 metal shielding.
All models are particularly suited to industrial,
tele-communications, test equipments power.
COMMON SPECIFICATIONS
Item
Test conditions
Min.
5
Typ.
--
Max. Units
Storage humidity
Operating temperature
Storage temperature
%
95
85
125
105
300
--
-40
-55
--
--
--
°C
Maximum Case Temp. On working temperature
--
Lead temperature
Isolation voltage
Isolation resistance
1.5mm from case for 10 seconds
--
--
Test for 1 minute and 1 mA max
Test at 500VDC
1500
1000
--
--
VDC
MΩ
--
--
MODEL SELECTION
Isolation capacitance 100kHz/0.1V
1000
400
--
--
pF
URB2405LD-20W
Switching frequency
MTBF
Nominal input, 100% load
MIL-HDBK-217F
--
--
kHz
k hours
g
Rated Power
Package Style
Output Voltage
Input Voltage
Product Series
--
1000
--
Weight
28
--
Cooling
Free Air Convection
Aluminum Alloy
Case material
INPUT SPECIFICATIONS
Item
Test conditions
Min.
--
Typ.
--
Max.
9.0
--
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
Units
VDC
Models ON
Models OFF
Models ON
Models OFF
Nominal input
(24V)
8.0
--
--
Under voltage lockout
--
17.8
--
Nominal input
(48V)
Fax:86-20-38601272
E-mail: info@mornsun.cn
Http://www.mornsun-power.com
16.0
--
Input filter
PI
Start-up time
--
10
--
ms
Models ON
Models OFF
3.5 -12VDC or open circuit
0-1.2VDC
Ctrl(4)
Input current (models OFF)
--
--
1
mA
The copyright and authority for the interpretation of the products are reserved by MORNSUN Specifications subject to change without notice.
URB_LD-20W 2013.06.13-A/4 Page 1 of 3
OUTPUT SPECIFICATIONS
RECOMMENDED CIRCUIT
Item
Test conditions
See product program
Min.
2
Typ.
--
Max.
20
Units
W
1) Recommended circuit
All the URB_LD-20W series have been tested
according to the following recommended testing
circuit before leaving factory. This series should be
tested under load. Never be tested under no load
(see Figure 1).
Output power
Output voltage accuracy Refer to recommended circuit
--
±1
±3
Load regulation
Line regulation
From 10% to 100% load
--
±0.5
±1
%
Input voltage from low to high
100% load
--
±0.2
±0.5
+Vo
Vin
C in
Ripple and noise
20MHz bandwidth
Co ut
55
--
75
200
±3
150
500
±5
mV
us
%
DC DC
0V
GND
Transient recovery time
Transient peak deviation
25% load step change
(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.
Over current protection Input voltage range
Short circuit protection Input voltage range
3.3V output
120
130
150
%
Hiccup, automatic recovery
--
--
--
--
--
--
3.9
6.2
15
--
--
--
--
--
--
2) Recommended capacitance
5V output
Over voltage protection
12V output
Capacitance
Cin(μF)
VDC
Output
voltage
Cout(μF)
(24V,48V Input)
100
15V output
18
3.3(VDC)
470
470
220
220
100
Temperature drift (Vout)
Trim
Refer to recommended circuit
±0.02
%/°C
5(VDC)
12(VDC)
15(VDC)
24(VDC)
±10%V
VDC
3) No parallel connection or plug and play
TRIM APPLICATION & TRIM RESISTANCE
DERATING & EFFICIENCY CURVE
1) Temperature derating curve
Application circuit for TRIM (Part in broken line is the interior of models)
+Vo
(Output Voltage ≤ 5V)
+Vo
R1
RT
R1
R3
Vref
R2
Trim
R3
Vref
R2
Trim
Operating Temp( C)
RT
(Output Voltage > 5V)
0V
Trim down
0V
Trim up
Formula for resistance of Trim
Operating Temp( C)
2) Efficiency VS Input Voltage
URB2405LD-20W
aR
2
Vref
Vo’-Vref
-R
3
up: R
T
=
=
a=
a=
R
1
R2
-a
90
88
86
84
82
80
78
76
74
72
70
aR1
Vo’-Vref
Vref
down:
-R3
RT
R2
R1
-a
Note: Value for R1, R2, R3, and Vref refer to the following table.
RT: Resistance of Trim
9
12 15 18 21 24 27 30 33 36
Input Voltage(V)
a: User-defined parameter, no actual meanings.
Vo’: The trim up/down voltage
3) Efficiency VS Output Load
URB2405LD-20W
Vo
3.3
5
12
15
24
90
80
70
60
50
40
30
20
10
0
(VDC)
(VDC)
(VDC)
(VDC)
(VDC)
Resistance
R1(KΩ)
R2(KΩ)
R3(KΩ)
Vref(V)
4.80
2.86
15
2.88
2.86
10
10.97
2.86
17.8
2.5
14.50
2.86
17.8
2.5
24.87
2.86
20
1.24
2.5
2.5
10 20 30 40 50 60 70 80 90 100
Output Load %Io
The copyright and authority for the interpretation of the products are reserved by MORNSUN
Specifications subject to change without notice.
URB_LD-20W
2013.06.13-A/4
Page 2 of 3
OUTLINE DIMENSIONS & FOOTPRINT DETAILS
HEATSINK ASSEMBLY& PACKAGE DIAGRAM(WITH HEATSINK)
NOTES
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 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-20W 2013.05.31-A/4 Page 3 of 3
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