CUI VASD1-S15-D9-DIP

rev.
date
08/2007
features
· isolated 1
Designed to convert fixed voltages into an isolated voltage, the
VASD1-DIP series is well suited
for providing board-mount local
supplies in a wide range of applications, including mixed
analog/digital circuits, test &
measurement equip.,
process/machine controls, datacom/telecom fields, etc...
The semi-regulated output can be
followed by 3-terminal regulators
to provide output protection, in
addition to output regulation.
model
number
VASD1-S5-D5-DIP
VASD1-S5-D9-DIP
VASD1-S5-D12-DIP
VASD1-S5-D15-DIP
VASD1-S12-D5-DIP
VASD1-S12-D9-DIP
VASD1-S12-D12-DIP
VASD1-S12-D15-DIP
VASD1-S15-D5-DIP
VASD1-S15-D9-DIP
VASD1-S15-D12-DIP
VASD1-S15-D15-DIP
VASD1-S24-D5-DIP
VASD1-S24-D9-DIP
VASD1-S24-D12-DIP
VASD1-S24-D15-DIP
1 of 3
DESCRIPTION: DC/DC converter
PART NUMBER: VASD1-DIP series
description
page
W output
·temperature range: -40°C~+85°C
·unregulated
·high efficiency to 80%
·dual 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
input voltage
nominal
range
5 Vdc
4.5~5.5 Vdc
5 Vdc
4.5~5.5 Vdc
5 Vdc
4.5~5.5 Vdc
5 Vdc
4.5~5.5 Vdc
12 Vdc
10.8~13.2 Vdc
12 Vdc
10.8~13.2 Vdc
12 Vdc
10.8~13.2 Vdc
12 Vdc
10.8~13.2 Vdc
15 Vdc
13.5~16.5 Vdc
15 Vdc
13.5~16.5 Vdc
15 Vdc
13.5~16.5 Vdc
15 Vdc
13.5~16.5 Vdc
24 Vdc
21.6~26.4 Vdc
24 Vdc
21.6~26.4 Vdc
24 Vdc
21.6~26.4 Vdc
24 Vdc
21.6~26.4 Vdc
output
voltage
±5 Vdc
±9 Vdc
±12 Vdc
±15 Vdc
±5 Vdc
±9 Vdc
±12 Vdc
±15 Vdc
±5 Vdc
±9 Vdc
±12 Vdc
±15 Vdc
±5 Vdc
±9 Vdc
±12 Vdc
±15 Vdc
output current
max.
min.
±100 mA
±10 mA
±56 mA
±6 mA
±42 mA
±5 mA
±33 mA
±4 mA
±100 mA
±10 mA
±56 mA
±6 mA
±42 mA
±5 mA
±33 mA
±4 mA
±100 mA
±10 mA
±56 mA
±6A
±42 mA
±5 mA
±33 mA
±4 mA
±100 mA
±10 mA
±56 mA
±6 mA
±42 mA
±5 mA
±33 mA
±4 mA
efficiency
72%
75%
78%
79%
74%
76%
79%
80%
74%
75%
79%
79%
74%
76%
80%
81%
package
style
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
OUTPUT SPECIFICATIONS
item
output power
line regulation
load regulation
output voltage accuracy
temperature drift
output ripple
switching frequency
test conditions
for Vin change of 1%
10% to 100% full load
see tolerance envelope graph
@ 100% load
20 MHz Bandwidth
full load, nominal input
min.
0.1
typ.
10
50
100
max.
1
1.2
15
units
W
%
%
0.03
75
%/°C
mVp-p
KHz
NOTE:
1. All specifications measured at TA=25°C, humidity <75%, nominal input voltage and rated output load unless
otherwise specified.
20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382
UL60950-1
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
YES
YES
YES
YES
rev.
page
2 of 3
date
08/2007
DESCRIPTION: DC/DC converter
PART NUMBER: VASD1-DIP series
GENERAL SPECIFICATIONS
short circuit protection
temperature rise at full load
<1 second
25°C Max, 15°C typ.
cooling
free air convection
operating temperature range
-40°C to +85°C
storage temperature range
-55°C to +125°C
soldering temperature
300°C (1.5mm from case for 10 sec.)
storage humidity range
<95%
case material
plastic (UL94-V0)
safety
approved to UL60950-1 (E222736)
MTBF
>3,500,000 hrs.
burn-in
full load at +85°C, for 4 hours at no-load and 4 hours at full load.
ISOLATION SPECIFICATIONS
item
isolation voltage
insulation resistance
test conditions
tested for 1 min.
test at 500 Vdc
DIMENSIONS (mm)
min.
1000
1000
typ.
max.
units
Vdc
M Ω
TYPICAL CHARACTERISTICS
Pin
1
7
8
9
11
14
-Vin
NC
COM
+Vout
-Vout
+Vin
20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382
rev.
page
3 of 3
date
08/2007
DESCRIPTION: DC/DC converter
PART NUMBER: VASD1-DIP series
- Minimum loading
APPLICATION NOTES:
The converter needs a minimum of 10% loading to maintain
output regulation. Operation under no-load conditions will not
- Input filtering
To reduce the reflected ripple current and minimize EMI,
cause immediate damages but may reduce reliability, and
especially when the converter input is more than 2” away from
cause performance not to meet specifications.
the DC source, it is recommended to connect a low ESR
electrolytic capacitor between Vin and Gnd. The values
- Regulation
suggested are as shown in Table 1. If additional filtering is
With a semi-regulated design, the converter’s output voltage
required, the capacitance may be increased, or expanded to
varies with load current and will change proportionally to the
an LC network as shown in Figure 1.
input voltage. If regulated output is needed, an external
regulator can be used as shown in Figure 2.
TABLE 1
- Protection
The converter has minimal protection against input over-
Input Voltage
External Input Capacitance
5V
4.7 µF
if exposed to these conditions. An input clamping device can
12 V
2.2 µF
be used for input voltage limiting. An input fuse or an output
15 V
2.2 µF
24 V
1.0 µF
voltage or output over-load, and may be permanently damaged
fuse also be used to protect against over-loading.
- Dual outputs used as a single output
The +Vout and -Vout can be used to obtain a single output
that is the sum of the two outputs. In this case, the COM pin
- Output filtering
shouldn’t be used.
An output capacitor is needed to meet output ripple
requirements as shown in Table 2.Output capacitance may be
- External Regulator
increased for additional filtering, but should not exeed 10µF or
An external 3-terminal regulator can be connected to the
expanded to an LC network as in Figure 1.
output of the converter to achieve full regulation. Make sure
the converter’s output voltage provides sufficient head room
for the regulator. An additional benefit is that the built-in
TABLE 2
protection features in the regulator, such as OCP, OTP, etc,
will protect the converter also. In a complimentory supply, a
Vout
External Ouput Capacitance
5V
4.7 µF
9V
2.2 µF
12 V
1.0 µF
+Vin
15 V
0.47 µF
-Vin
24 V
0.33 µF
negative output regulator must be used to achieve the
negative regulated output.
+Vout
REG
DC DC
COM
-Vout
+Vin
REG
+Vout
REG
-Vout
DC DC
-Vin
L
L
+Vout
+Vin
C
C
DC DC
-Vin
COM
L
C
-Vout
<Figure 1>
20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382
COM