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VRA_LD-15W & VRB_LD-15W Series
15W, WIDE INPUT , ISOLATED & REGULATED SINGLE/DUAL OUTPUT DC-DC CONVERTER
FEATURES Efficiency up to 87% Wide (2:1) Input Range 1.5KVDC Input/Output Isolation Short Circuit Protection(automatic recovery) Operating Temperature: -40C to +85C Internal SMD construction Metal Shielding Package Industry Standard Pin out MTBF>1,000,000 hours RoHS Compliance
multi-country patent protection RoHS
PRODUCT PROGRAM
Input Part Number VRA1205LD-15W VRA1212LD-15W VRA1215LD-15W VRB1203LD-15W VRB1205LD-15W VRB1212LD-15W VRB1215LD-15W VRA2405LD-15W VRA2412LD-15W VRA2415LD-15W VRB2403LD-15W 24 18 -36 40 12 9 -18 20 Voltage (VDC) Nominal Range Max* Output Voltage (VDC) 5 12 15 3.3 5 12 15 5 12 15 3.3 5 12 15 5 12 15 48 36-75 80 3.3 5 12 15 Current (mA) 1500 625 500 4000 3000 1250 1000 1500 625 500 4000 3000 1250 1000 1500 625 500 4000 3000 1250 1000 Efficiency Capacitor (%) Load Max 82 85 85 79 82 85 84 84 86 86 80 83 85 85 85 87 87 81 83 86 86 1020 495 165 10500 4020 1035 705 1020 495 165 10500 4020 1035 705 1020 495 165 10500 4020 1035 705
APPLICATION
The VRA_LD-15W & VRB_LD-15W series offer 15W of output, the VRA_LD-15W & VRB_LD-15W series with 2:1 wide input voltage of 9-18, 18-36 and 36-75VDC and features 1500VDC isolation, short-circuit and over current protection, as well as six sided shielding. All models are particularly industrial, test suited to tele-communications, equipments power.
VRB2405LD-15W VRB2412LD-15W VRB2415LD-15W VRA4805LD-15W VRA4812LD-15W VRA4815LD-15W VRB4803LD-15W VRB4805LD-15W VRB4812LD-15W VRB4815LD-15W
* Input voltage can't exceed this value, or will cause the permanent damage.
INPUT SPECIFICATIONS
MODEL SELECTION
Item Start-up voltage Input filter Start-up time Ctrl On Off 10 3.5 - 40VDC or open 0-1.2VDC Test conditions 12 Vin models 24 Vin models 48 Vin models L-C mS Min. Typ. Max. 9 17.8 35.8 VDC Units
VRB2405LD-15W
Rated Power Package Style Output Voltage Input Voltage Product Series
OUTPUT SPECIFICATIONS
Item Output voltage accuracy MORNSUN Science & Technology co.,Ltd.
Address: 2th floor 6th building, Huangzhou Industrial District, Guangzhou, China Tel: 86-20-38601850 Fax: 86-20-38601272 Http://www.mornsun-power.com
Test conditions Refer to recommended circuit From 10% to 100% load Input voltage from low to high 20MHz Bandwidth 25% load step change Input voltage range Input voltage range
Min.
Typ. 1 0.5 0.2 75 200 3
Max. 3 1 0.5 5 150 300 5 150
Units
Load regulation Line regulation Cross regulation(Dual) Ripple and noise Transient recovery time Transient peak deviation Over current protection Output Short Circuit Trim Temperature drift (Vout)
%
mV uS %Vo %
120
130 10%Vo 0.02
Hiccup, automatic recovery VDC 0.03 %/C
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice. VRA_LD-15W & VRB_LD-15W A/4-2009 Page 1 of 3
COMMONT SPECIFICATIONS
Item Storage Humidity Operating Temperature Storage Temperature Temp. Rise at Full Load Case surface Lead Temperature Isolation voltage Isolation resistance Isolation capacitance Switching Frequency MTBF Cooling Case material Weight 1.5mm from case for 10 seconds Tested for 1 minute and 1 mA max 1500 Test at 500VDC 100KHz /0.1V Nominal, full load 1000 1000 1000 500 -40 -55 50 300 VDC M pF KHz K hours Free Air Convection Nickel- coated copper 30 g Test conditions Min. Typ. Max. 95 85 105 C Units %
DERATING & EFFICIENCY CURVE
1. Temperature derating curve
Output Power (%)
Operating Temp( C)
2. Efficiency Vs Input voltage VRA2412LD-15W
Efficiency VS Input voltage Efficiency (%) 90 89 88 87 86 85 84 83 82 18 20 22 24 26 28 30 32 34 36 Input voltage(V)
APPLICATION NOTE
Recommended circuit All the VRA_LD-15W & VRB_LD-15W 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).
Dual Output Vin
Cin
+Vo
Cout
DC
DC
Cout
0V -Vo
GND Single Output Vin
Cin
+Vo
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. Recommended capacitance To ensure these series can operate efficiently and reliably, the recommended capacitance of input and output sees the below table. Capacitance Output Voltage Single 3.3V,5V 12V,15V Dual 5V 12V,15V 220uF 100uF 220uF 100uF 100uF Cin
3. Efficiency Vs Output Power VRA2412LD-15W
Efficiency VS Output load Efficiency (%) 90 80 70 60 50 40 30 20 10 0 0 10 20 30 40 50 60 70 80 90 100 Output load (%)
Cout
(12V,24V,48V Input)
OUTPUT VOLTAGE TRIM UP/DOWN
+V0
Trim
Trim
+Vo
0V Trim up/d own
0V Trim up
Trim Trim down
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice. VRA_LD-15W & VRB_LD-15W A/4-2009 Page 2 of 3
OUTLINE DIMENSIONS & FOOTPRINT DETAILS MECHANICAL DIMENSIONS
11.20 [0.441]
RECOMMENDED FOOTPRINT
1.20 [0.047]
(Side View)
6
5 2.54 [0.100]
14.00 [0.551]
4.10 [0.161] 1 1.00 [0.039] 2 50.80 [2.000] 20.32 [0.800] 5.08 [0.200] 3 4
3 20.27 [0.798] 25.40 [1.000]
2.54 [0.100] 20.32 [0.800]
2 7.62 [0.300] 1 (Bottom View) 4
TUBE OUTLINE DIMENSIONS
54.30 [2.138]
6
5
FOOTPRINT DETAILS
Pin
1 2 3 4 5 6
Single
GND Vin +Vo Trim 0V Ctrl
Dual
GND Vin +Vo 0V -Vo Ctrl
13.00 [0.512]
Note: Unit :mm[inch] General tolerances: 0.50mm[ 0.020inch] L=230mm[9.055inch] Tube Quantity: 7pcs
Note: 1. All specifications are measured at TA=25C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 2. In this datasheet, all the test methods of indications are based on corporate standards. 3. Only typical model listed. Non-standard models will be different from the above, please contact us for more details. 4. The products cannot be used in parallel and in plug and play. 5. The CTRL control pin voltage is referenced to GND. 6. Capacitor MAX load tested at nominal input voltage and constant resistive load. 7. Refer to the diagram of Output Voltage trim up/down for trim applications.
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice. VRA_LD-15W & VRB_LD-15W A/4-2009 Page 3 of 3
20.00 [0.787]
Note: Unit:mm[inch] Pin diameter tolerances: 0.10mm[ 0.004inch] General tolerances: 0.25mm[ 0.010inch]

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