40DDW_1.5 Series
40W - Single/Dual Output - Wide Input - Isolated & Regulated
DIP DC-DC Converter
DC-DC Converter
40 Watt
The 40DDW_1.5 series offers 40W of output, wide input voltage of
9-18VDC, 18-36VDC, 36-75VDC and features 1500VDC isolation,
six-sided metal shield over current and short circuit protection.
High efficiency up to 91%
2:1 wide input voltage range
Isolation voltage 1500VDC
Six-sided metal shield
Short circuit protection (SCP)
(automatic recovery)
Operating temperature:
-40°C to +85°C
Over temperature protection
Industry standard pinout
Under voltage lockout
All models are particularly suited to tele-communications, industrial,
test equipments power etc.
Common specifications
Cooling:
Output specifications
Free air convection
Item
Test condition
Min Typ
Max
2
Units
ꢀ
Short circuit protection:
Operation temperature range:
Storage temperature range:
Case temperature:
Continuous, auto-recovery
-40°C~+85°C
Voltage tolerance
Full load @Vin(nom.%
Output voltage
adjustment
only for single output
models and symetric
dual output models
10
ꢀ
-55°C~+125°C
105°C
Line regulation
Load regulation
Vin min to Vin max, F.L
0.5
ꢀ
Lead temperature range:
Switching frequency (PWM mode%:
Humidity:
265°C MAX, 1.5mm from case for 10 sec
300kHz TYP
10ꢀ to 100ꢀ load
• Single
0.5
1
ꢀ
ꢀ
• Dual (balance load%
non-condensing, 95ꢀ MAX
Metal
Cross regulation
25ꢀ / 100ꢀ (Dual
output%
5
ꢀ
Case material:
Ripple and noise1%
Start-up time
20MHz Bandwidth
85
25
100
mV
ms
Potting material:
Epoxy (UL94V-0 rated%
>150,000 hours
70g
MTBF (MIL-HDBK-217F @25°C%*:
Weight:
nominal Vin and cons-
tant resistive load
Transient response 25ꢀ load step change
setting time
300
µs
* BELLCORE TR-NWT-000332. Case I: 50ꢀ Stress, Temperature at 40ºC. (Ground
fixed and controlled environment%
Over load
protection
Input voltage range
150
ꢀIo
Input specifications
Over voltage
protection
• 3.3VDC
• 5VDC
• 12VDC
• 15VDC
3.9
6.2
15
V
V
V
V
Item
Test condition
Min
Typ
Max
Units
18
Start-up voltage /
under voltage lockout
• 12Vin
• 24Vin
• 48Vin
9/8
17.8/15.8
36/33
VDC
VDC
VDC
Remote ON/OFF2%
• ON
• OFF
Open
Short to -Vin
• Off idle current
2.5
10
mA
ꢀ
Surge voltage
100ms max.
• 12Vin
• 24Vin
25
50
100
V
V
V
External trim adj. range
• 48Vin
1% Test ripple and noise by “parallel cable” method. Typical value at nominal input
voltage and no load.
2% The ON/OFF control pin voltage is referenced to -Input. (Leave open if not used.%
Conducted noise*
Filter
EN 55022 level A, FCC part 15,
level A with external capacitor
Pi type
Model selection:
WCTV_xxyyN##
* The 40DDW series can meet EN55022 Class A with parallel an external
capacitor to the input pins. Recommend:
12Vin: 10µF/25V X7R 1812 MLCC
W= Watt; C=Case; T= Type; V= Voltage Variation (omitted 10ꢀ%;
xx= Vin; yy= Vout; N= Numbers of Output; ##= Isolation (kVDC%
24Vin: 4.7µF/50V X7R 1812 MLCC.
48Vin: 2.2µF/100V X7R 1812 MLCC.
Example:
40DDW_2415S1.5
40= 40Watt; D= DIP; D= series; W= wide input (2:1) 18-36Vin;
15Vout; S= single output; 1.5= 1500VDC
Isolation specifications
Item
Test condition
Min
Typ
Max
Units
VDC
Note:
1. Input voltage can’t exceed this value, or will cause the permanent damage.
2. The load shouldn‘t be less than 5ꢀ, otherwise ripple will increase dramatically.
3. Max. Capacitive Load is tested on Vin-nominal 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 the test methods of indications are based on corporate
standards.
6. Only typical models listed, other models may be different, please contact our
technical person for more details.
Isolation voltage
Input/Output, tested
for 1 minute and 1mA
max
1500
Isolation resistance
Isolation capacitance
Test at 500VDC
1000
MΩ
Input/Output,
100KHz/0.1V
2500
pF
7. Specifications subject to change without notice.
Page 1 of 3
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
40DDW_1.5 – Rev. 2016-1.2
Specifications subject to change without notice.
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