WRA0505LT-3W [MORNSUN]
Analog Circuit, PDSO6;
| 型号： | WRA0505LT-3W |
| 厂家： | 
MORNSUN SCIENCE& TECHNOLOGY LTD. |
| 描述： | Analog Circuit, PDSO6 光电二极管 |
| 文件： | 总3页 (文件大小：271K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
WRA_LT-3W & WRB_LT-3W Series
3W, WIDE INPUT, ISOLATED & REGULATED
SINGLE/DUAL OUTPUT DC/DC CONVERTER
Patent Protection RoHS
PRODUCT PROGRAM
FEATURES
Input
Output
● 2:1 Wide input voltage range
● Operating temperature: -40°C ~ +85°C
● 1500VDC isolation
Part
Number
Efficiency
(%, Typ.)
Voltage (VDC)
Current (mA)
Voltage
(VDC)
Nominal Range
Max**
Max.
±300
±125
±100
600
Min.
±30
±13
±10
60
● No heatsink required
WRA0505LT-3W*
WRA0512LT-3W*
WRA0515LT-3W
WRB0505LT-3W
WRB0512LT-3W*
WRB0515LT-3W
WRA1205LT-3W *
WRA1212LT-3W
WRA1215LT-3W
WRB1205LT-3W
WRB1212LT-3W
WRB1215LT-3W *
WRA2405LT-3W
WRA2412LT-3W
WRA2415LT-3W
WRB2405LT-3W
WRB2412LT-3W
WRB2415LT-3W
WRA4805LT-3W
WRA4812LT-3W *
WRA4815LT-3W *
WRB4805LT-3W
WRB4812LT-3W
WRB4815LT-3W
*Designing.
±5
±12
±15
5
72
74
75
72
74
75
76
79
79
74
79
79
76
79
79
76
79
79
76
79
79
76
79
79
● Internal SMD construction
● MTBF>1,000,000 hours
● Short circuit protection
(automatic recovery)
● Industry standard pinout
● RoHS Compliance
5
4.5-9
11
12
15
±5
±12
±15
5
250
25
200
20
±300
±125
±100
600
±30
±13
±10
60
12
24
48
9-18
22
40
80
APPLICATIONS
12
15
±5
±12
±15
5
250
25
The WRA_LT-3W & WRB_LT-3W series are
specially designed for applications where a wide
range input voltage power supplies are isolated
from the input power supply in a distributed
power supply system on a circuit board.
These products apply to:
200
20
±300
±125
±100
600
±30
±13
±10
60
18-36
36-72
1) Where the voltage of the input power supply is
wide range(voltage range ≤ 2:1);
12
15
±5
±12
±15
5
250
25
200
20
2) Where isolation is necessary between input
and output (isolation voltage ≤1500VDC);
3) Where the regulation of the output voltage and
the output ripple noise are demanded.
±300
±125
±100
600
±30
±13
±10
60
12
15
250
25
200
20
MODEL SELECTION
**Input voltage can’t exceed this value, or will cause the permanent damage.
WRB2412LT-3W
COMMON SPECIFICATIONS
Rated Power
Package Style
Output Voltage
Input Voltage
Product Series
Item
Test conditions
Min.
Typ.
15
Max.
Units
%
Storage humidity
Operating temperature
Storage temperature
Temp. rise at full load
Lead temperature
Short circuit protection
Cooling
95
85
-40
-55
125
°C
1.5mm from case for 10 seconds
300
Continuous, automatic recovery
Free air convection
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: 86-20-28203030
Package material
MTBF
Epoxy Resin (UL94-V0)
1000
k hours
g
Fax:86-20-28203068
Weight
5.2
Http://www.mornsun-power.com
The copyright and authority for the interpretation of the products are reserved by MORNSUN
Specifications subject to change without notice.
WRA_LT_3W & WRB_LT_3W B/3-2010 Page 1 of 3
ISOLATION SPECIFICATIONS
TYPICAL TEMPERATURE CURVE
Item
Test conditions
Min.
Typ. Max. Units
Isolation voltage
Isolation resistance
Isolation capacitance
Tested for 1 minute and 1mA max 1500
VDC
Test at 500VDC
1000
MΩ
Input/output, 100KHz/1V
1000
pF
OUTPUT SPECIFICATIONS
Item
Test conditions
Min.
0.3
Typ. Max. Units
100
Output power
See above products program
3
W
Operating Temp.(
C )
Positive voltage accuracy Refer to recommended circuit
Negative voltage accuracy Refer to recommended circuit
±1
±3
±3
±5
±1*
250
Peak.Temp 240 C
10 Sec Max
%
Load regulation
From 10% to 100% load
±0.5
220 C
200
150
100
60 Sec Max
(>220 C)
Line regulation
Input voltage from low to high
Refer to recommended circuit
20MHz Bandwidth
±0.2 ±0.5
Temperature Drift (Vout)
Output ripple& noise**
Switching frequency
±0.03 %/°C
100 mVp-p
kHz
35
100% load, nominal input voltage
300
50
0
*Dual output models unbalanced load: ±5%.
**Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of
Time (sec.)
Power Converter section, application notes.
Remark:
The curve applies only to the hot air reflow soldering
APPLICATION NOTE
RECOMMENDED CIRCUIT
Requirement On Output Load
+Vo
Vin
In order to ensure the product operate efficiently and reliably, in addition to a max load
(namely full load), a minimum load is specified for this kind of DC/DC converter. Make sure
the specified range of input voltage is not exceeded, the minimum output load no less
than 10% load. If the actual load is less than the specified minimum load, the output ripple
may increase sharply while its efficiency and reliability will reduce greatly. If the actual
output power is very small, please add an appropriate resistor as extra loading, or contact
our company for other lower output power products.
Cin
0V
DC DC
GND
-Vo
Single Output
+Vo
0V
Vin
Cin
DC DC
(Figure 1)
GND
Recommended Circuit
All the WRA_LT-3W & WRB_LT-3W series have been tested according to the following
recommended testing circuit before leaving factory. This series should be tested under
load (See Figure 1).
Ip
If you want to further decrease the input/output ripple, you can increase capacitance
properly or choose capacitors with low ESR. However, the capacitance of the output filter
capacitor must be proper. If the capacitance is too big, a startup problem might arise. For
every channel of output, provided the safe and reliable operation is ensured, the greatest
capacitance of its filter capacitor sees (Table 1).
Input Voltage
Range
Input Voltage (V)
(Figure 2)
General: Cin: 5V&12V
24V&48V
100μF
10μF~47μF
Cout: 10μF/100mA
Output External Capacitor Table(Table 1)
Input Current
Single Vout
(VDC)
Cout
(µF)
Dual Vout
(VDC)
Cout
(µF)
When it is used in unregulated power supply, be sure that the fluctuating range of the
power supply and the rippled voltage do not exceed the module standard. Input current of
power supply should afford the flash startup current of this kind of DC/DC module (Figure
2), General: Ip ≤1.6*Iin-max(Vin=5V)
5
1000
470
±5
680
330
220
12
15
±12
±15
330
Ip ≤1.4*Iin-max(Vin=12V/24V/48V)
No parallel connection or plug and play
The copyright and authority for the interpretation of the products are reserved by MORNSUN
Specifications subject to change without notice.
WRA_LT_3W & WRB_LT_3W B/3-2010 Page 2 of 3
OUTLINE DIMENSIONS & PIN CONNECTIONS
RECOMMENDED FOOTPRINT(TOP VIEW)
DUAL/SINGLE OUTPUT
MECHANICAL DIMENSIONS
(Side View)
1.02 [0.040]
0.50 [0.020]
9
10
16
23.86[0.939]
15.24[0.600]
3.04[0.120]
2.54[0.100]
1
7
8
16
10
7
9
8
(Top View)
2.54[0.100]
1.00[0.039]
1
A
0.25[0.010]
5 max
TUBE OUTLINE DIMENSIONS
A
22.20[0.874]
13.80[0.543]
18.10 [0.713]
1.40±0.20
[0.055±0.008]
FOOTPRINT DETAILS
Pin
1
Single
GND
NC
Dual
GND
NC
7
8
NC
0V
+Vo
9
+Vo
0V
10
16
-Vo
Vin
10.00[0.394]
0.60[0.024]
Vin
NC: No connection
Note:
Unit :mm[inch]
General tolerances: ±0.50mm[±0.020inch]
Note:
Unit:mm[inch]
Pin section tolerances:±0.10mm[±0.004inch]
General tolerances:±0.25mm[±0.010inch]
L=530mm[20.866inch] pcs/tube: 21
L=220mm[8.661inch] pcs/tube: 8
Note:
1. The load shouldn't be less than 10%, otherwise ripple will increase dramatically.
2. Operation under 10% load will not damage the converter; However, they may not meet all specification listed.
3. Capacitor MAX load tested at input voltage range and full load.
4. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified.
5. Only typical models listed, other models may be different, please contact our technical person for more details.
6. 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.
WRA_LT_3W & WRB_LT_3W B/3-2010 Page 3 of 3
相关型号：
WRA0505S-1WR2
DC-DC Regulated Power Supply Module, 2 Output, 1W, Hybrid, ROHS COMPLIANT, PLASTIC, SIP-8/7
MORNSUN
©2020 ICPDF网 联系我们和版权申明