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VRB1205D-40W Datasheet(PDF) 2 Page - MORNSUN Science& Technology Ltd.

Part # VRB1205D-40W
Description  SINGLE OUTPUT DC-DC CONVERTER
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Manufacturer  MORNSUN [MORNSUN Science& Technology Ltd.]
Direct Link  http://www.mornsun-power.com
Logo MORNSUN - MORNSUN Science& Technology Ltd.

VRB1205D-40W Datasheet(HTML) 2 Page - MORNSUN Science& Technology Ltd.

  VRB1205D-40W Datasheet HTML 1Page - MORNSUN Science& Technology Ltd. VRB1205D-40W Datasheet HTML 2Page - MORNSUN Science& Technology Ltd.  
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MORNSUN reserves the copyright
Specifications subject to change without notice.
VRB_D-40W
A/0-2008
Page 2 of 2
COMMON SPECIFICATION
RECOMMENDED CIRCUIT
Item
Test Conditions
Min
Typ
Max
Units
Storage Humidity
5
95
%
Operating Temperature
-40
+85
Storage Temperature
-55
+125
Temp. Rise at Full Load
70
Lead Temperature
1.5mm from case for 10 seconds
300
°C
Isolation voltage
Test for 1 minute and 1 mA max
1500
VDC
Isolation resistance
Test at 500VDC
1000
M
Ω
Isolation capacitance
100KHz /0.1V
2000
pF
DC
DC
Vin
G ND
+Vo
0V
Cin
Cout
L
0V
+Vo
+Sense
-S ense
Fig.1
In order to abtain better performance for the
DC/DC models, it
’s recommened that use input and
output filters as Fig.1 shown.
Switching Frequency
Nominal, full load
300
KHz
DERATING & EFFICIENCY CURVE
MTBF
MIL-HDBK-217F
1000
K hours
Weight
60
g
Cooling
Free Air Convection
Case material
Nickel- coated copper(six-sided shield)
Note:
1. All specifications are measured at TA=25
°C, humidity<75%, nominal input voltage and rated output load
unless otherwise specified.
2. The products cannot be used in parallel and in plug and play.
3. The CTRL pin voltage is referenced to GND.
4. Typical Eff value at nominal input voltage and full load.
5. Capacitor MAX load tested at nominal input voltage and constant resistive load.
6. Refer to the diagram of Output Voltage trim up/down for trim applications.
OUTLINE DIMENSIONS & PIN CONNECTIONS
RECOMMENDED FOOTPRINT
Top view,grid:2.54mm(0.1inch),
diameter:1.50mm(0.059inch)
Note:
Unit:mm(inch)
Pindiameter:1.00mm(.0.039inch)
Pin diameter tolerances: 0.05mm( 0.002inch)
General tolerances: 0.25mm( 0.010inch)
+
+
+
+
FO OT PRINT DETAILS
Fu nct ion
Pin
1
3
7
6
2
Vin
-Sense
Ct rl
+Vo
+Sense
GND
First Angle Projection
3
2
1
5
6
50.80 0.50
+
45.72.
2.54
(2.000 0.020)
+
(0.100)
(1.800)
5
6
3
2
1
7
8
7
8
8
0V
Trim
5
9
9
9
Bottom View
OUTPUT VOLTAGE TRIM UP/DOWN
+Vo
Trim
0V
Tri m up/down
Trim
0V
Tri m up
Trim
0V
Tri m do wn
+Vo
Tr im
① Temperature derating curve
Temperature(℃)
60
② Efficiency Vs Input voltage
VRB4805D-40W
Efficiency VS Input voltage
0.820
0.830
0.840
0.850
0.860
0.870
0.880
0.890
0.900
0.910
0.920
36
40
44
48
52
56
60
64
68
75
Input voltage(V)
Eff
③ Efficiency Vs Load
VRB4805D-40W
Efficiency VS Output load
0.700
0.720
0.740
0.760
0.780
0.800
0.820
0.840
0.860
0.880
0.900
0.920
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
Output Load %Po
Eff


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