VSD-50 Series Single Output DC-DC Converter
Rev. 02/2009
1/ 4
V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062 www.v-infinity.com 1-866-372-1258
Input Output Output Ripple2Load/Line
Model1,3 Voltage Voltage Current & Noise Regulation Efficiency
VSD-50A-5 9.2~18V DC 5V DC 10 A 100mV ±0.5% 70%
VSD-50A-12 9.2~18V DC 12V DC 4.2 A 120mV ±0.3% 73%
VSD-50A-24 9.2~18V DC 24V DC 2.1 A 150mV ±0.2% 76%
VSD-50B-5 19~36V DC 5V DC 10 A 100mV ±0.5% 72%
VSD-50B-12 19~36V DC 12V DC 4.2 A 120mV ±0.3% 75%
VSD-50B-24 19~36V DC 24V DC 2.1 A 150mV ±0.2% 78%
VSD-50C-5 36~72V DC 5V DC 10 A 100mV ±0.5% 74%
VSD-50C-12 36~72V DC 12V DC 4.2 A 120mV ±0.3% 80%
VSD-50C-24 36~72V DC 24V DC 2.1 A 150mV ±0.2% 83%
Features
·2:1 wide input range
·Short circuit, overload, over-voltage
protected
·1500VDC I/O isolation
·Built in EMI filter, low ripple noise
·Fixed switching frequency at 83KHz
·100% full load burn-in test
·Low cost, high reliability
·1 year warranty
·50 watts
Notes:
1 All parameters Not specifically mentioned are measured at normal input, rated load and 25ºC of ambient temp.
2 Ripple & noise are measured at 20MHz of bandwidth by using a 12” twisted pair-wire terminated with a 0.1uF
& 47uF parallel capacitor.
3 The power supply is considered a component which will be installed into final equipment. The final equipment
must be re-confirmed that it still meets EMC directives.
VSD-50 Series Single Output DC-DC Converter
Rev. 02/2009
2/ 4
V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062 www.v-infinity.com 1-866-372-1258
Input Voltage
Parameter Conditions/Description Min Nom Max Units
Input voltage A 9.2 12 18 DC
B192436DC
C364872DC
Output
Parameter Conditions/Description Min Nom Max Units
DC Voltage adj. 4.5 5 5.5 VDC
11 12 16 VDC
23 24 30 VDC
Over Voltage 5.75 6.75 VDC
Protection 13.8 16.2 VDC
27.6 32.4 VDC
DC output power For all models 50 Watts
Overload hiccup mode, recovers automatically after fault 105~160%
condition is removed. For all models.
Voltage Tolerance Model B is ±2%, ±1% for all other models
Hold up time 12VDC/24VDC/48VDC at full load 50 mS
Set up For all models 2.5s
Protection Circuit
Parameter Conditions/Description
Input Fuse Built-in ac fuse. A blown fuse usually indicates permanent
damage to the power supply serviceable by factory only.
Overload Current limiting starts at 110-140% of the rated output current in foldback mode and
recovers automatically.
Short circuit Short circuit can be continuous. Recovers automatically upon removal of short.
Output Over-voltage Output is protected agaist overvoltage. Unit shuts down and latches
when voltage at output terminals exceeds 130%. AC input needs to be
reset to restart the power supply.
Over temp. Power supply shuts down when temperature is in excess of 85 ºC. Auto recovery.
VSD-50 Series Single Output DC-DC Converter
Rev. 02/2009
3/ 4
V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062 www.v-infinity.com 1-866-372-1258
General and Safety
Parameter Conditions/Description Min Nom Max Units
Operating temp. (refer to output derating curve) -10 60 ºC
Storage temp. -20 85 ºC
Operating humid. Non-condensing 20% 90% RH
Storage humid. Non-condensing 10% 95% RH
Temperature coefficient ±0.3% / ºC (0~50ºC)
EMI EN55022(CISPR22) CLASS B
Safety (EMC) EN55022 Class B (radiation), En61000-4-2, 3, 4, 6, 8, ENV50204
Vibration 2G 10min/i cycle, 60 min on X, Y and Z Axis 10 500 Hz
Withstand Voltage I/P-O/P 3000 VDC
I/P-FG 1500 VDC
O/P-FG 800 VDC
Isolation Resistance I/P-O/P, I/P-FG, O/P-FG 100mΩ min. / 500VDC
Cooling Convection
Mechanical
Parameter Conditions/Description Min Nom Max Units
Weight 530 grams
Enclosure 159(L) x 97(W) x 38(H) mm inches
VSD-50 Series Single Output DC-DC Converter
1
2
4
3
5
Assignment Assignment
FG
4.5
9
3.5
37.5
65
152.5
97
84.5 7
9
2-M3
1506.5
78
24
159
22 117
3-M3
18 9
18.5
3.5
3.5
3.5
5
4
3
2
2.8
1
9.5
Rev. 02/2009
4/ 4
V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062 www.v-infinity.com 1-866-372-1258
Block Diagram
Output Derating Static Characteristics
