rev.
page
date
1 of 3
09/2008
PART NUMBER:
VBSD1-DIP series
DESCRIPTION:
dc-dc converter
description
Designed to convert fixed volt-
ages into an isolated voltage, the
VBSD1-DIP series is well suited
for providing board-mount local
supplies in a wide range of appli-
cations, including mixed
analog/digital circuits, test &
measurement equip.,
process/machine controls, data-
com/telecom fields, etc...
The semi-regulated output can be
followed by 3-terminal regulators
to provide output protection, in
addition to output regulation.
features
·
isolated 1
W output
·temperature range: -40°C~+85°C
·unregulated
·high efficiency to 80%
·single voltage output
·small footprint
·DIP package style
·industry standard pinout
·UL94-V0 package
·no heatsink required
·1K Vdc isolation
·power density 0.85 W/cm³
·no external component required
·low cost
MODEL
VBSD1-S3.3-S3.3-DIP
VBSD1-S3.3-S5-DIP
VBSD1-S5-S3.3-DIP
VBSD1-S5-S5-DIP
VBSD1-S5-S9-DIP
VBSD1-S5-S12-DIP
VBSD1-S5-S15-DIP
VBSD1-S12-S3.3-DIP
VBSD1-S12-S5-DIP
VBSD1-S12-S9-DIP
VBSD1-S12-S12-DIP
VBSD1-S12-S15-DIP
VBSD1-S15-S3.3-DIP
VBSD1-S15-S5-DIP
VBSD1-S15-S9-DIP
VBSD1-S15-S12-DIP
VBSD1-S15-S15-DIP
VBSD1-S24-S3.3-DIP
VBSD1-S24-S5-DIP
VBSD1-S24-S9-DIP
VBSD1-S24-S12-DIP
VBSD1-S24-S15-DIP
VBSD1-S24-S24-DIP
input voltage
nominal
range
(V dc)
(V dc)
output voltage
(V dc)
output current
max.
min.
(mA)
(mA)
efficiency
typ.
(%)
UL60950-1
3.3
3.3
5
5
5
5
5
12
12
12
12
12
15
15
15
15
15
24
24
24
24
24
24
3.00~3.60
3.00~3.60
4.5~5.5
4.5~5.5
4.5~5.5
4.5~5.5
4.5~5.5
10.8~13.2
10.8~13.2
10.8~13.2
10.8~13.2
10.8~13.2
13.5~16.5
13.5~16.5
13.5~16.5
13.5~16.5
13.5~16.5
21.6~26.4
21.6~26.4
21.6~26.4
21.6~26.4
21.6~26.4
21.6~26.4
3.3
5
3.3
5
9
12
15
3.3
5
9
12
15
3.3
5
9
12
15
3.3
5
9
12
15
24
303
200
303
200
111
83
67
303
200
111
83
67
303
200
111
83
67
303
200
111
83
67
42
31
20
30
20
12
9
7
30
20
12
9
7
31
20
12
9
7
31
20
12
9
7
4
72
74
72
70
78
78
80
72
71
76
78
79
73
74
75
79
75
76
73
78
78
79
78
NO
NO
NO
YES
YES
YES
YES
NO
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
NO
20050
SW
112
th
Ave. Tualatin, Oregon
97062
phone
503.612.2300
fax
503.612.2382
rev.
page
date
2 of 3
09/2008
PART NUMBER:
VBSD1-DIP series
DESCRIPTION:
dc-dc converter
OUTPUT
parameter
output power
voltage accuracy
ripple
noise
line regulation
load regulation
conditions/description
refer to tolerance envelope graph
@ 20 MHz bandwidth
@ 20 MHz bandwidth
for Vin change of 1% (3.3 V output)
for Vin change of 1% (other V output)
10% to 100% full load 3.3 V
5 V
12 V
9 V
15 V
refer to recommended circuit
100% load, nominal input
min
0.1
nom
max
1
75
150
1.5
1.2
20
15
15
15
15
0.03
units
W
mVpp
mVpp
%
%
%
%
%
%
%
%/°C
KHz
50
75
15
12.8
8.3
6.8
6.3
100
temperature coefficient
switching frequency
note: 1. All specifications measured at TA-25°C, humidity <75%, normal input voltage and rated output load unless otherwise specified.
GENERAL SPECIFICATIONS
parameter
output short circuit protection
temperature rise at full load
cooling
operating temp. range
storage temp. range
storage humidity range
case material
MTBF
conditions/description
1 second
15°C typ., 25°C max.
free air convection
-40°C ~ +85°C
-55°C ~ +125°C
≤95%
plastic (UL94-V0)
>3,500,000 hours
ISOLATION SPECIFICATIONS
parameter
isolation voltage
isolation resistance
conditions/description
flash tested for 1 minute
test at 500 V dc
min
1000
1000
nom
max
units
V dc
MΩ
DIMENSIONS (mm)
Side View
12.70
(0.5)
Bottom View
2.54
(0.1)
+0.15
0
Note: All Pins on a 2.54mm(0.1) pitch;
All Pin diameters are 0.50 mm(0.02);
Tolerances:
±
0.25mm(0.01)
Unit: mm(inch)
1
7
4
5
7
1
5
4
Pin
1
4
5
7
GND
Vin
+ Vo
0V
1
7
4
5
20050
SW
112
th
Ave. Tualatin, Oregon
97062
phone
503.612.2300
fax
503.612.2382
rev.
page
date
3 of 3
09/2008
PART NUMBER:
VBSD1-DIP series
DESCRIPTION:
dc-dc converter
APPLICATION NOTES:
- Requirement on output load
To ensure this module can operate efficiently and reliably,
the minimum output load should not be less than 10% of the
full load. Also, this product should never be operated under
no load conditions. If the actual output power is too small,
please connect a resistor with proper resistance at the output
end in parallel to increase the load.
- Output voltage regulation and over-voltage protection circuit
The simplest device for output voltage regulation, over-voltage
and over-current protection is a linear voltage regulator with
overheat protection that is connected to the input or output
end in series (Figure 2).
FIGURE 2
Vin
GND
REG
+Vout
DC DC
0V
REG
- Overload protection
Under normal operating conditions, the output circuit of these
products has no protection against overload. The simplest
method is to connect a self-recovery fuse in series at the
input end or to add a circuit breaker to the circuit.
- Recommended circuit
If you want to further decrease the input/output ripple, an “LC”
filtering network may be connected to the input and output
ends of the dc-dc converter, see (Figure 1).
Vin
GND
+Vout
DC DC
0V
TYPICAL CHARACTERISTICS
FIGURE 1
+Vin
Cin
L
L
+Vout
Cout
-Vin
DC DC
-Vout
To ensure this module can operate efficiently and reliably, a
minimum load is specified for this kind of dc-dc converter in
addition to a maximum load (namely full load). During
operation, make sure the specified range of input voltage is
not exceeded, the minimum output load is not less than 10%
of the full load, and that this product should never be operated
under no load. If the actual output power is very small, please
connect a resistor with proper resistance at the output end in
parallel to increase the load, or use our company’s products
with a lower rated output power.
Ambient Temperature
( C )
EXTERNAL CAPACITOR TABLE
V
in
3.3/5VDC
12VDC
24VDC
---
--
External
capacitor
4.7uF
2.2uF
1uF
---
--
V
out
3.3VDC
5VDC
9VDC
12VDC
15VDC
External
capacitor
10uF
10uF
4.7uF
2.2uF
1uF
It is not recommended to connect any external capacitor in the
application field with less than a 0.5 watt output.
20050
SW
112
th
Ave. Tualatin, Oregon
97062
phone
503.612.2300
fax
503.612.2382
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