20DMW4_1.5 Series
20W - Single/Dual Output - Ultra Wide Input - Isolated & Regulated
DC-DC Converter
DC-DC Converter
20 Watt
The 20DMW4_1.5 series are isolated 20W DC/DC converters. Designed
with high efficiency, they allow the operating temperature range of these
units to be -40°C to +85°C (with derating) in a 6 pin DIP package with
industry-standard footprint. Further features include wide 4 : 1 input
voltage range, remote on/off control, trimmable output, short-circuit pro-
tection and over voltage protection.
Wide 4:1 input voltage range
High efficiency up to 90%
Remote On/Off
Input/output isolation voltage:
1.5K Vdc
Short circuit protection (SCP)
RoHS compliant
Operating temperature range:
-40°C to +85°C
Over voltage protection:
clamp mode
Shielded metal case with
insulated baseplate
6 pin DIP package with
industry-standard footprint
Standard 1”x1” package
Customer design available
These converters are well suitable for battery operated equipment, mea-
surement equipment, telecom, wireless network, Industry control sys-
tem, everywhere where isolated, tightly regulated voltages and compact
size are required.
Common specifications
Short circuit protection:
Cooling:
Input specifications
Hiccup, continuous, automatic recovery
Free air convection
-40°C~+85°C
Item
Test condition
Min
Typ
Max
Units
VDC
Input surge voltage
(100ms max.)
• Nominal input (24V)
• Nominal input (48V)
50
100
Operation temperature range:
Storage temperature range:
Maximum case temperature:
Soldering temperature:
Switching frequency:
Storage humidity range:
Safety standards:
Start-up voltage
• 24V
• 48V
8.7
16.9
9
18
VDC
VDC
-55°C~+125°C
100°C MAX
Under voltage
shutdown
• 24V
• 48V
8.3
16.2
9
18
VDC
VDC
265°C MAX for 10 sec.
330kHz TYP
Input filter
LC network
Input reflected ripple
current
Nominal Vin and full
load
30
mAp-p
95ꢀ MAX
EN 60950-1, IEC 60950-1
MIL-STD-810E
Remote ON/OFF
• Converter: ON
• Converter: OFF
3.0 ~ 15 VDC or open circuit
0 ~ 1.2 VDC or short circuit
pin 6 and pin 2
Vibration and thermal shock:
Case material:
Nickel-coated copper (six-sided)
Non-conductive black FR4
Epoxy (UL94V-0)
• Off idle current
2.5
mA
Base material:
Conducted noise
Protection
EN 55022 level A, FCC part 15, level A
with external capacitor
Potting material:
Fuse recommended
MTBF (MIL-HDBK-217F @25°C):
Weight:
340.000 hours
16.5g
Output specifications
Item
Test condition
Min
Typ
Max
2
Units
ꢀ
Isolation specifications
Voltage tolerance
Line regulation
Load regulation
Item
Test condition
Input to output
Test at 500VDC
Min
Typ
Max
Units
Vmin to Vmax
0.5
0.5
ꢀ
Isolation voltage
Isolation resistance
Isolation capacitance
1500 VDC
• 25ꢀ load to full load
(single)
• Balanced load (dual)
• Unbalanced load
25ꢀ to 100ꢀ full load
ꢀ
1000
Ω
1.0
5
ꢀ
ꢀ
1000
pF
Model selection:
WCTV_xxyyN##
Minimum load
required
10
ꢀ
Temperature drift
(Vout)
0.02 ꢀ/°C
W= Watt; C=Case; T= Type; V= Voltage Variation (omitted 10ꢀ);
xx= Vin; yy= Vout; N= Numbers of Output; ##= Isolation (kVDC)
Ripple and noise* 20MHz Bandwidth
100
mVp-p
ꢀ
Example:
20DMW4_2415S1.5
20=20Watt; D= DIP; M=series; W4= wide input (4:1) 9-36Vin;
15Vout; S=single output; 1.5=1500VDC
Transient response di/dt=0.8A/μs
over shoot
≤ 5ꢀ of Vo
(≤ 6ꢀ for 3.3Vout)
Over load
protection
ꢀ of full load at
nominal input
110
Output current
limitation
at 150 ꢀ of Iout max.,
constant current
Note:
1. Only typical model listed. Non-standard models will be different from the above,
please contact us for more details.
* Ripple & Noise measurement bandwidth is 20 MHz, measured with a 1uF M/C
and a 10uF T/C.
2. All specifications are measured at TA=25°C, humidity<75ꢀ, nominal input
voltage and rated output load unless otherwise specified.
3. In this datasheet, all the test methods of indications are based on corporate
standards.
Page 1 of 3
20DMW4_1.5 – Rev. 2016-1.2
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
Specifications subject to change without notice.
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