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VRB_LD-30W Series
30W, WIDE INPUT, ISOLATED & REGULATED SINGLE OUTPUT DC-DC CONVERTER
multi-country patent protection RoHS
FEATURES High efficiency up to 88% 2:1 Wide Input Voltage Range 1.5KVDC Input/Output Isolation Six-sided Metal Shield Short Circuit Protection(automatic recovery) Operating Temperature: -40C to +85C Internal SMD construction Industry Standard Pin out MTBF>1,000,000 hours RoHS Compliance
PRODUCT PROGRAM
Input Part Number VRB2403LD-30W VRB2405LD-30W VRB2412LD-30W VRB2415LD-30W VRB4803LD-30W VRB4805LD-30W VRB4812LD-30W VRB4815LD-30W 48 36-75 80 24 18 - 36 40 Voltage (VDC) Nominal Range Max* Output Voltage (VDC) 3.3 5 12 15 3.3 5 12 15 Current (mA) 6000 6000 2500 2000 6000 6000 2500 2000 Efficiency Capacitor (%) Load Max 84 86 87 87 84 86 88 87 6800 6800 680 680 6800 6800 680 680
*Input voltage above it may cause permanent damage to the device.
APPLICATION
The VRB_LD-30W series offer 30W of output, with 2:1 wide input voltage of 18-36VDC, 36-75VDC and features 1500VDC isolation, short-circuit and over current protection, as well as six-sided metal shield. All models are particularly suited to tele-communications, industrial, test equipments power.
INPUT SPECIFICATIONS
Item Start-up time Nominal Models ON (24V) Models OFF Nominal Models ON (48V) Models OFF Models ON Ctrl Models OFF Input current (Models OFF) -Test conditions Min. --16 -33 Typ. 20 ----L-C 3-40VDC 0-1.2VDC -1 mA Max. -17.8 -35.8 -VDC Units mS
Under Voltage lock off
Input filter
MODEL SELECTION
OUTPUT SPECIFICATIONS
Item Rated Power Package Style Output Voltage Input Voltage Product Series Output power Output voltage accuracy Refer to recommended circuit From 10% to 100% load Load regulation Nominal input Input voltage from low to high Line regulation 100% load Ripple and noise Transient recovery time Transient peak deviation Over current protection 20MHz bandwidth 25% load step change Input voltage range Input voltage range 3.3V output Over voltage protection 5V output 12V output 15V output Temperature drift (Vout) Trim Test conditions Min --------------Typ -1 0.5 0.2 50 200 -130 3.9 6.2 15 18 -10%Vo Max 30 3 1 0.5 120 500 5 150 ----0.02 -%/C VDC VDC mV uS % % % Units W
VRB4812LD-30W
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
Short circuit protection
Hiccup, automatic recovery
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice. VRB_LD-30W A/0-2009 Page 1 of 3
COMMON SPECIFICATIONS
Item Storage humidity Operating temperature Storage temperature Temp. Rise at full load Lead temperature Isolation voltage Isolation resistance Isolation capacitance Switching frequency Cooling Case material MTBF Weight 1.5mm from case for 10 seconds Test for 1 minute and 1 mA max Test at 500VDC 100KHz/0.1V Nominal, full load Test conditions Min 5 -40 -55 --1500 1000 --Typ. -------1000 350 Max 95 85 105 105 300 ----VDC M pF KHz C Units %
RECOMMENDED CIRCUIT
Recommended Circuit
Vin
C in
Vout
DC
DC
C o ut
GND
0V
(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. Recommended capacitance Capacitance Output Cout (F) Voltage 3.3 470/220 5 470/220 12 220/100 15 220/100
Cin (F)
Free Air Convection Nickel- coated copper 1000 --40 --K hours g
100
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
Temperature derating curve (Free Air Convection) Without heat sink
120 100
R1 Vref R2 R3 Trim Vref RT R2 R1 R3 Trim RT
Output Power (%)
80 60 40 20 0 -40 0 40 50 85 120 Safe Operating Area
Operating Temp( C)
With heat sink
0V Trim up 0V
Output Power (%)
120 100
Trim down
80 60 40 20 0 -40 0 40 60 85 120 Safe Operating Area
Formula for resistance of Trim
up: R T =
aR2 R 2 -a aR1 R 1 -a
-R3
Vref a= Vo-Vref a= Vo-Vref Vref
R1
Operating Temp( C)
down: R T =
-R3
R2
Efficiency curve VRB2415LD-30W
VS Vin 90.00
(%)
Note: Value for R1, R2, R3, and Vref refer to the following table. RT: Resistance of Trim a: User-defined parameter, no actual meanings. Vo(V) Resistance R1(K) R2(K) R3(K) Vref(V) 3.3 4.801 2.863 15 1.24 5 2.883 2.864 10 2.5 12 10.971 2.864 17.8 2.5 15 14.497 2.864 17.8 2.5
89.00 88.00 87.00 86.00 85.00 18 21 24 27 Vin(V) 30 33 36
VS Io
100 80
(%)
60 40 20 0 0 500 1000 Io(mA) 1500 2000
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice. VRB_LD-30W A/0-2009 Page 2 of 3
OUTLINE DIMENSIONS & FOOTPRINT DETAILS
MECHANICAL DIMENSIONS
11.00 [0.433]
RECOMMENDED FOOTPRINT
1.20 [0.047]
(Side View) 3.50 [0.138] 4.10 [0.161]
4 3
0.50 [0.020] 1.00 [0.039]
5 2 50.80 [2.000]
5.08 [0.200]
45.72 [1.800]
1 6 6
10.16 [0.400]
1
10.16 [0.400]
2
(Bottom View)
5
10.16 [0.400]
25.40 [1.000]
2.54 [0.100]
TUBE OUTLINE DIMENSIONS
54.30 [2.138]
3 4
14.00 [0.551]
FOOTPRINT DETAILS
Pin
1 2 3 4 5 6
Function
Vin GND Ctrl Trim 0V +Vo
13.00 [0.512]
Note: Unit :mm[inch] General tolerances: 0.50mm[ 0.020inch] L=230mm[9.055inch] Tube Quantity: 7pcs
HEAT SINK DIMENSIONS
25.40 [1.000] 21.50 [0.846]
17.50 [0.689]
50.80 [2.000]
31.00max [1.220]
Note: Unit: mm[inch] tolerances: 0.5mm[ 0.020inch] 1. If use heat sinks, make sure there is enough space for a specific size in the above chart; 2. Products will be supplied with heat sinks already mounted, separate heat sinks are not available .
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 CTRL control pin voltage is referenced to GND. 5. Capacitor MAX load tested at nominal input voltage, full load and constant resistive load.
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice. VRB_LD-30W A/0-2009 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]
2.54 [0.100]

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