20DBW8_1.5 Series
20W - Single Output - Ultra wide Input - Isolated & Regulated
DC-DC Converter
DC-DC Converter
20 Watt
The 20DBW8_1.5 series offers 20W of output, with 8:1 ultra wide
input voltage of 6-50VDC and features 1500VDC isolation, input
over-voltage and under-voltage protection, over current, over voltage
and short-circuit protection.
Efficiency up to 90%
Operating temperature range:
-40°C ~ +85°C
Six-sided metal shield
Industry standard pinout
Meet CISPR22/EN55022
CLASS A
8:1 wide input voltage range
Short circuit protection (SCP)
Output over voltage protection
Output over current protection
Input under voltage protection
1.5KVDC isolation
These products are widely used in fields such as industrial control,
electric power, instruments and communication.
Common specifications
Short circuit protection:
Cooling:
Output specifications
Hiccup, continuous, automatic recovery
Free air convection
Item
Test condition
Min
Typ
1
Max
3
Units
ꢀ
Output voltage
accuracy
Operation temperature range:
Storage temperature range:
Lead temperature:
-40°C~+85°C
Line regulation
Full load, Input voltage
from low to high
0.2
0.5
ꢀ
-55°C~+125°C
300°C max, 1.5mm from case for 10 sec
5ꢀ min, 95ꢀ max
Load regulation
5ꢀ to 100ꢀ load
0.5
1
ꢀ
Storage humidity range:
Switching frequency (PWM mode%*:
Vibration:
Transient recovery 25ꢀ load step change
time
300
500
µs
300kHz typ
Transient response 25ꢀ load step change
deviation
5
8
ꢀ
10-55Hz, 10G, 30 Min. along X, Y and Z
Aluminium alloy
Case material:
Temperature drift
Ripple & Noise*
100ꢀ full load
0.02
70
ꢀ/°C
mVp-p
ꢀVo
MTBF (MIL-HDBK-217F@25°C%:
Weight:
1000 K hours min
20MHz Bandwidth
Input voltage range
120
190
40g
Over current
protection
110
110
* This series of products using reduced frequency technology, the switching
frequency is test value of full load. When the load is reduced to below 50ꢀ,
the switching frequency decreases with decreasing load.
Output Over
Input voltage range
160
ꢀVo
Voltage Protection
* Ripple and noise tested by “parallel cable” method. See detailed operation
instructions at Testing of Power Converter section, application notes.
Input specifications
Item
Test condition
Min
Typ
Max
Units
Input current
(full load / no-load%
1016/ 1042/ mA
Model selection:
WCTV_xxyyN##
8
15
mA
mA
VDC
W= Watt; C=Case; T= Type; V= Voltage Variation (omitted 10ꢀ%;
xx= Vin; yy= Vout; N= Numbers of Output; ##= Isolation (kVDC%
Reflected ripple current
30
Surge voltage
(1sec. max.%
-0.7
70
Example:
20DBW8_2415S1.5
20=20Watt; D= DIP; B=series; W8= wide input (8:1) 6-50Vin; 15Vout;
S=single output; 1.5=1500VDC
Input under-voltage
protection
• Starting voltage
• Under voltage
shutdown
6
VDC
VDC
2
Input over-voltage
protection
• Starting voltage
• Over voltage
shutdown
50
VDC
VDC
58
Note:
Starting time
Nominal input &
constant resistance
load
10
ms
1. Min. load shouldn‘t be less than 5ꢀ, otherwise ripple maybe increase
dramatically. Operation under minimum load will not damage the converter,
however, they may not meet all specification listed.
2. Max. Capacitive Load tested at nominal input voltage and constant resistive
load.
3. All specifications measured at Ta=25°C, humidity<75ꢀ, nominal input voltage
and rated output load unless otherwise specified.
4. In this datasheet, all the test methods of indications are based on our corporate
standards.
Input filter
IHot plug
Pi filter
Unavailable
Isolation specifications
Item
5. All characteristics are for listed model, non-standard models may perform
differently, please contact our technical person for more detail.
6. Contact us for your specific requirement.
Test condition
Min
Typ
Max Units
VDC
Isolation voltage
Tested for 1 minute
and leakage current
less than 1 mA
1500
7. Specifications subject to change without prior notice.
Isolation resistance
Isolation capacitance
Test at 500VDC
100KHz/0.1V
1000
MΩ
2000
pF
Page 1 of 3
20DBW8_1.5 – Rev. 2017-1.0
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
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