1S8W_S & 1S8W_D Series
1W - Dual/Single Output - Wide Input - Isolated & Regulated
SIP - DC-DC Converter
DC-DC Converter
1 Watt
The 1S8W_S & 1S8W_D series are specially designed for applications where a
wide range input voltage power supplies are isolated from the input power supply
in a distributed power supply system on a circuit board. For these DC-DC conver-
ters, You can reduce the design point of failure and save the development of micro
power supply‘s manpower, material and time costs, also better ensure product
quality stability, protect safety and reliability of the end of products.
2:1 wide input voltage range
1.5KVDC isolation
Short circuit protection
(automatic recovery)
High Power Density
Operating Temperature:
-40°C to +85°C
Ultra-Miniature SIP Package
RoHS Compliance
External On/Off control
These products apply to:
1) Where the voltage of the input power supply is wide range
(voltage range≤2:1)
2) Where isolation is necessary between input and output
(isolation voltage≤1500VDC)
3) Where the regulation of the output voltage and the output ripple
noise are demanded
RoHS
Common specifications
Short circuit protection:
Temperature rise at full load:
Cooling:
Output specifications
Continuous, automatic recovery
25°C TYP
Item
Test condition
Min
Typ
0.2
Max
0.5
Units
ꢀ
Line regulation
Input voltage from
low to high, full load
Free air convection
-40°C~+85°C
Load regulation
5ꢀ to 100ꢀ load
5ꢀ to 100ꢀ load
0.4
1
0.75
ꢀ
ꢀ
Operation temperature range:
Storage temperature range:
Lead temperature range:
Storage humidity range:
Case material:
Output voltage
accuracy
3
-50°C ~+125°C
300°C MAX, 1.5mm from case for 10 sec
< 95ꢀ
No load output
voltage accuracy
Input voltage range
100ꢀ load
1.5
5
ꢀ
Temperature
coefficient
0.02
0.03 ꢀ/°C
Plastic [UL94-V0]
>1,000,000 hours
4.9g
MTBF (MIL-HDBK-217F@25°C):
Weight:
Ripple*
Noise*
20MHz Bandwidth
20MHz Bandwidth
30
50
mVp-p
mVp-p
ms
55
80
2
Transient recovery
time
25ꢀ load step
change
0.5
Isolation specifications
Item
Test condition
Min
Typ
Max
Units
VDC
Transient response
deviation
25ꢀ load step
change
2.5
200
5
ꢀ
Isolation voltage
Tested for 1 minute,
leakage current less
than 1 mA
1500
Switching frequency 100ꢀ load, nominal
(PFM mode) input voltage
KHz
Isolation resistance
Isolation capacitance
Test at 500VDC
1000
MΩ
*
Test ripple and noise by “parallel cable” method. See detailed operation
instructions at application notes.
Input/Output,
100KHz/0.1V
120
pF
Input specifications
Model selection:
WCT**_xxyyN##O
W=Watt; C= Case; T=Type; **= Voltage Variation (omitted 10ꢀ);
xx= Vin; yy= Vout; N= Numbers of Output; ##= Isolation (kVDC); O=
output regulation
Item
Test condition
C
Min
Typ
Max
Units
Input filter
Input surge voltage
(1 sec. max.)
• 5VDC input
• 12VDC input
• 24VDC input
• 48VDC input
-0.7
-0.7
-0.7
-0.7
12
25
50
100
VDC
VDC
VDC
VDC
Example:
1S8W_0505S1.5RP
1=1Watt; S8= SIP8; W=wide input; 4,5 - 9Vin; 5Vout; S=Single
Output; 1.5=1500VDC; R=Regulated Output P=Short Curcuit
Protection
Start-up voltage
Ctrl1)
• 5VDC input
• 12VDC input
• 24VDC input
• 48VDC input
3.5
4.5
11
4
8
16
33
4.5
9
18
36
VDC
VDC
VDC
VDC
24
Note:
• Models ON
• Models OFF
Ctrl open or be insulated
Connect high level voltage,
and ensure the current into
Ctrl to be 5-10mA
1. Min. load shouldn‘t be less than 5ꢀ, otherwise ripple maybe increased dramati-
cally. If the product operates under min. load, it may not be guaranteed to meet
all specifications listed. Operation under minimum load will not damage the
converter.
2. Recommended Dual output models unbalanced load is ≤ 5ꢀ, if the product
operates > 5ꢀ, it may not be guaranteed to meet all specifications listed.
Please contact our technical support for more details.
1) Please refer to „Application note“ as the direction for use of Ctrl.
3. Max. Capacitive Load is tested at input voltage range and full load.
4. All specifications measured at Ta=25°C, humidity<75ꢀ, nominal input voltage
and rated output load unless otherwise specified.
5. In this datasheet, all test methods are based on our corporate standards.
6. All characteristics are for listed models,and non-standard models may perform
differently.Please contact our technical support for more details.
7. Please contact our technical support for any specific requirement.
8. Specifications of this product are subject to changes without prior notice.
Page 1 of 7
GAPTEC-Electronic GmbH & Co. KG
1S8W_S & 1S8W_D – Rev. 2013-1.7
sales@gaptec-electronic.com – www.gaptec-electronic.com
Specifications subject to change without notice.
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