VASD1-DIP [CUI]
DC/DC converter; DC / DC转换器
| 型号： | VASD1-DIP |
| 厂家： | 
CUI INC |
| 描述： | DC/DC converter |
| 文件： | 总3页 (文件大小：301K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
page 1 of 3
date 08/2007
PART NUMBER: VASD1-DIP series
DESCRIPTION: DC/DC converter
description
features
·isolated 1 W output
·temperature range: -40°C~+85°C
·unregulated
Designed to convert fixed volt-
ages into an isolated voltage, the
VASD1-DIP series is well suited
for providing board-mount local
supplies in a wide range of appli-
cations, including mixed
·high efficiency to 80%
·dual voltage output
·small footprint
·DIP package style
·industry standard pinout
·UL94-V0 package
analog/digital circuits, test &
measurement equip.,
process/machine controls, data-
com/telecom fields, etc...
·no heatsink required
·1K Vdc isolation
·power density 0.85 W/cm³
·no external component required
·low cost
The semi-regulated output can be
followed by 3-terminal regulators
to provide output protection, in
addition to output regulation.
model
input voltage
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
package
number
nominal
5 Vdc
range
max.
±100 ꢀA
±5ꢁ ꢀA
±42 ꢀA
±±± ꢀA
±100 ꢀA
±5ꢁ ꢀA
±42 ꢀA
±±± ꢀA
±100 ꢀA
±5ꢁ ꢀA
±42 ꢀA
±±± ꢀA
±100 ꢀA
±5ꢁ ꢀA
±42 ꢀA
±±± ꢀA
min.
±10 ꢀA
±ꢁ ꢀA
±5 ꢀA
±4 ꢀA
±10 ꢀA
±ꢁ ꢀA
±5 ꢀA
±4 ꢀA
±10 ꢀA
±ꢁA
efficiency
72%
75%
78%
79%
74%
7ꢁ%
79%
80%
74%
75%
79%
79%
74%
7ꢁ%
80%
81%
style
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
UL60950-1
YES
YES
YES
YES
YES
YES
YES
YES
NO
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
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
12 Vdc
12 Vdc
12 Vdc
15 Vdc
15 Vdc
15 Vdc
15 Vdc
24 Vdc
24 Vdc
24 Vdc
24 Vdc
10.8~1±.2 Vdc
10.8~1±.2 Vdc
10.8~1±.2 Vdc
10.8~1±.2 Vdc
1±.5~1ꢁ.5 Vdc
1±.5~1ꢁ.5 Vdc
1±.5~1ꢁ.5 Vdc
1±.5~1ꢁ.5 Vdc
21.ꢁ~2ꢁ.4 Vdc
21.ꢁ~2ꢁ.4 Vdc
21.ꢁ~2ꢁ.4 Vdc
21.ꢁ~2ꢁ.4 Vdc
NO
±5 ꢀA
±4 ꢀA
±10 ꢀA
±ꢁ ꢀA
±5 ꢀA
±4 ꢀA
NO
NO
YES
YES
YES
YES
OUTPUT SPECIFICATIONS
item
test conditions
min.
typ.
max.
1
units
output power
0.1
W
%
%
line regulation
load regulation
output voltage accuracy
teꢀperature drift
output ripple
for Vin change of 1%
10% to 100% full load
1.2
15
10
see tolerance envelope graph
@ 100% load
0.0±
75
%/°C
ꢀVp-p
KHz
20 MHz Bandwidth
50
switching frequency
full load, noꢀinal input
100
NOTE:
1. All specifications ꢀeasured at TA=25°C, huꢀidity <75%, noꢀinal input voltage and rated output load unless
otherwise specified.
th
20050 SW 112 Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382
page 2 of 3
date 08/2007
PART NUMBER: VASD1-DIP series
DESCRIPTION: DC/DC converter
GENERAL SPECIFICATIONS
short circuit protection
teꢀperature rise at full load
cooling
<1 second
25°C Max, 15°C typ.
free air convection
-40°C to +85°C
-55°C to +125°C
operating teꢀperature range
storage teꢀperature range
soldering teꢀperature
storage huꢀidity range
case ꢀaterial
±00°C (1.5ꢀꢀ froꢀ case for 10 sec.)
<95%
plastic (UL94-V0)
safety
approved to ULꢁ0950-1 (E2227±ꢁ)
>±,500,000 hrs.
MTBF
burn-in
full load at +85°C, for 4 hours at no-load and 4 hours at full load.
ISOLATION SPECIFICATIONS
item
test conditions
tested for 1 ꢀin.
test at 500 Vdc
min.
1000
1000
typ.
max.
units
isolation voltage
insulation resistance
Vdc
M Ω
DIMENSIONS (mm)
TYPICAL CHARACTERISTICS
Pin
-Vin
NC
1
7
COM
+Vout
-Vout
+Vin
8
9
11
14
th
20050 SW 112 Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382
page 3 of 3
date 08/2007
PART NUMBER: VASD1-DIP series
DESCRIPTION: DC/DC converter
- Miniꢀuꢀ loading
APPLICATION NOTES:
The converter needs a ꢀiniꢀuꢀ of 10% loading to ꢀaintain
output regulation. Operation under no-load conditions will not
cause iꢀꢀediate daꢀages but ꢀay reduce reliability, and
cause perforꢀance not to ꢀeet specifications.
- Input filtering
To reduce the reflected ripple current and ꢀiniꢀize EMI,
especially when the converter input is ꢀore than 2” away froꢀ
the DC source, it is recoꢀꢀended to connect a low ESR
electrolytic capacitor between Vin and Gnd. The values
suggested are as shown in Table 1. If additional filtering is
required, the capacitance ꢀay be increased, or expanded to
an LC network as shown in Figure 1.
- Regulation
With a seꢀi-regulated design, the converter’s output voltage
varies with load current and will change proportionally to the
input voltage. If regulated output is needed, an external
regulator can be used as shown in Figure 2.
TABLE 1
- Protection
The converter has ꢀiniꢀal protection against input over-
voltage or output over-load, and ꢀay be perꢀanently daꢀaged
if exposed to these conditions. An input claꢀping device can
be used for input voltage liꢀiting. An input fuse or an output
fuse also be used to protect against over-loading.
Input Voltage
5 V
External Input Capacitance
4.7 µF
2.2 µF
2.2 µF
1.0 µF
12 V
15 V
- Dual outputs used as a single output
24 V
The +Vout and -Vout can be used to obtain a single output
that is the suꢀ of the two outputs. In this case, the COM pin
shouldn’t be used.
- Output filtering
An output capacitor is needed to ꢀeet output ripple
requireꢀents as shown in Table 2.Output capacitance ꢀay be
increased for additional filtering, but should not exeed 10µF or
expanded to an LC network as in Figure 1.
- External Regulator
An external ±-terꢀinal regulator can be connected to the
output of the converter to achieve full regulation. Make sure
the converter’s output voltage provides sufficient head rooꢀ
for the regulator. An additional benefit is that the built-in
protection features in the regulator, such as OCP, OTP, etc,
will protect the converter also. In a coꢀpliꢀentory supply, a
negative output regulator ꢀust be used to achieve the
negative regulated output.
TABLE 2
External Ouput Capacitance
Vout
5 V
4.7 µF
2.2 µF
1.0 µF
9 V
+Vout
12 V
+Vin
REG
COM
DC DC
-Vin
15 V
24 V
0.47 µF
0.±± µF
-Vout
+Vout
REG
REG
+Vin
-Vin
COM
-Vout
DC DC
L
L
+Vout
+Vin
C
COM
C
DC DC
L
C
-Vin
-Vout
<Figure 1>
th
20050 SW 112 Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382
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