D-NXT-1W
Series
1W,FIXED INPUT, ISOLATED & UNREGULATED TWIN OUTPUT ULTRAMINIATURE SMD PACKAGE DC-DC CONVERTER
PRODUCT PROGRAM
Input
Part
Number
Voltage(VDC)
Nominal
Range
Voltage
(VDC)
Max
Output
Current(MA)
Min.
Efficiency
(%,Typ)
D050505NXT-1W
5
5
5
5
12
12
12
12
4.5-5.5
4.5-5.5
4.5-5.5
4.5-5.5
10.8-13.2
10.8-13.2
10.8-13.2
10.8-13.2
5/5
9/9
12/12
15/15
5/5
9/9
12/12
15/15
100/100
56/56
42/42
33/33
100/100
56/56
42/42
33/33
10/10
6/6
4/4
3/3
10/10
6/6
4/4
3/3
70
75
79
80
72
75
78
80
FEATURES
◆
Efficiency up to 80%
◆
Twin Independent Output
◆
Small Footprint
◆
SMD Package Styles
◆
Industry Standard Pinout
◆
No Heatsink Required
◆
1kVDC Isolation
◆
High Power Density
◆
Temperature Range: -40℃~ +85℃
◆
No External Component Required
◆
Internal SMD construction
◆
RoHS Compliance
D050909NXT-1W
D051212NXT-1W
D051515NXT-1W
D120505NXT-1W
D120909NXT-1W
D121212NXT-1W
D121515NXT-1W
Note: The D_NXT-W2/W5 series also are available in our company.
COMMON SPECIFICATIONS
Item
Storage humidity
Operating temperature
Storage temperature
Temp. rise at full load
Lead temperature
Short circuit protection*
1.5mm from case for 10 seconds
15
-40
-55
Test Conditions
Min.
Typ.
Max.
95
85
125
Unit
%
℃
25
300
1
Free air convection
Epoxy Resin (UL94-V0)
3500
2.1
K
g
S
MODEL SELECTION
D 05 05 05 N X T -1W
①
②
③
④
⑤
⑥
⑦
⑧
Cooling
package material
MTBF
Weight
*Supply voltage must be discontinued at the end of short circuit duration.
①Product
Series
②Input
Voltage
③The
1st Output Voltage
④The
2nd Output Voltage
⑤No
Pin
⑥Fixed
Input
⑦SMD
Package
⑧Rated
Power
APPLICATIONS
The D_NXT-1W series are specially designed for
applications where a group of polar power supplies are
isolated from the input power supply in a distributed power
supply system on a circuit board. These products apply to:
1)Where the voltage of the input power supply is fixed
(voltage variation≤±10%);
2) Where isolation is necessary between input and
output (isolation voltage
≤±1000VDC);
3) Where the regulation of the output voltage and
the output ripple and noise are not demanding.
Such as:purely digital circuits , ordinary low frequency
analog circuits and IGBT power device driven circuits,
etc.
ISOLATION SPECIFICATIONS
Item
Isolation voltage(Vin/Vout)
Isolation voltage(Vo1/Vo2)
Isolation resistance(Vin/Vout)
Isolation resistance(Vo1/Vo2)
Isolation capacitance(Vin/Vout)
Isolation capacitance(Vo1/Vo2)
Test Conditions
Tested for 1 minute and 1mA max
Tested for 1 minute and 1mA max
Test at 500VDC
Test at 500VDC
Min.
1000
1000
1000
1000
Typ.
Max.
Unit
VDC
VDC
MΩ
MΩ
60
60
pF
pF
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http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 1 of 3
D-NXT-1W
Series
OUTPUT SPECIFICATIONS
Item
Output power
Line regulation
Load regulation
Load regulation
Load regulation
Load regulation
Output voltage accuracy
Temperature drift
Ripple & Noise*
Switching frequency
100% full load
20MHz Bandwidth
Full load, nominal input
50
100
instructions
For Vin change of
±1%
10% to 100% load(5V output)
10% to 100% load(9V output)
10% to 100% load(12V output)
10% to 100% load(15V output)
12.8
8.3
6.8
6.0
Test Conditions
Min.
0.1
Typ.
Max.
1
±1.2
15
10
10
10
±0.03
75
Units
W
%
%
%
%
%
APPLICATION NOTE
See tolerance envelope graph
%/℃
mVp-p
KHz
at Testing of Power
*Test ripple and noise by "Parallel cable"method . See detailed operation
Converter section, application notes.
RECOMMENDED REFLOW SOLDERING PROFILE
RECOMMENDED CIRCUIT
Remark: The curve applies only to the hot air reflow soldering
TYPICAL CHARECTERISTICS
1) Requirement On Output Load
To ensure this module can operate efficiently and reliably, a minimum load is specified for
kind
of
DC/DC
converter
in
addition
to
a
maximum
is
load
(namely
full
operation, make sure
the specified range of
input voltage
not exceeded,
this
load). During
EXTERNAL CAPACITOR TABLE (TABLE 1)
the minimum output
load could not be less than 10% of the full load. If the actual output power
products with a lower rated output power (D-NXT -W2/W5).
2) Recommended testing circuit
If
It
you want
should
to
also
further decrease
be
noted
that
the
the
input/output
inductance
is very small, please connect
a resistor with proper resistance at the output end in parallel to increase the load, or use our company
ripple , an "LC" filtering network may be
and
be
the
to
frequency
of
the
"LC"
is
connected to the input and output ends of the DC/DC converter , see (Figure1).
Filtering network should be
too
big , a startup problem
staggered with
might
the DC/DC
capacitor
frequency
must
avoid mutual
interference.
It's not recommended to connect any external capacitor
in the application field with less than 0.5 watt output.
However , the capacitance of the output filter
proper . If
the capacitance
arise . For every channel of output,provided the safe and reliable
operation is ensured, the greatest capacitance of its filter capacitor sees (Table 1).
3) Output Voltage Regulation and Over-voltage Protection Circuit
The
simplest
device
for
output
voltage
regulation , over-voltage
and
over-current
protection is a linear voltage regulator with overheat protection that is connected to the input or output
end in series (Figure2).
4) Overload Protection
Under
normal
operating
conditions , the
output
is
circuit
of
these
products
fuse
has
no
protection against overload . The simplest method
the input end or add a circuit breaker to the circuit.
5) Cannot use in parallel and hot swap
to connect a self-recovery
in series at
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 2 of 3
D-NXT-1W
Series
OUTLINE DIMENSIONS& RECOMMENDED FOOTPRINT
MECHANICAL DIMENSIONS
RECOMMENDED FOOTPRINT
Note:
Unit: mm[inch]
Pin section tolerances:
±
0.10mm[ 0.004inch]
General tolerances:
±
0.25mm[ 0.010inch]
TUBE OUTLINE DIMENSIONS
REEL PACKING OUTLINE DIMENSIONS
Note:
Unit: mm[inch]
General tolerances:±0.50mm[± 0.020inch]
L=530mm[20.866inch]
L=220mm[8.661inch]
Devices per tube quantity: 28pcs
Devices per tube quantity: 10pcs
Note:
Unit :mm[inch]
General tolerances:
±0.50mm[
0.020inch]
Per reel of packing quantity:400pcs
Inner package
carton dimensions: L*W*H=365*350*105mm
Tube Quantity : 800pcs
Outer package carton dimensions: L*W*H=390*360*245mm
Tube Quantity:1600pcs
Short tube inner package dimensions : L*W*H= 255*170*80mm
Short tube outer package dimensions(with six inner package boxes):
L*W*H= 375*280*270mm
Long tube inner package dimensions : L*W*H= 580*200*100mm
Long tube outer package dimensions(with two inner package boxes):
L*W*H= 600*215*220mm
Long tube outer package dimensions(with three inner package boxes):
L*W*H= 600*215*325mm
RoHS COMPLIANT INFORMATION
This series is compatible with RoHS soldering systems with a peak wave solder temperature
of 300°C for 10 seconds.
The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin
with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this
series are backward compatible with Sn/Pb soldering systems.
Microdc Professional Power Module,Inc.
Tel:0086-20-86000646
E-mail:tech@microdc.cn
Website:http://www.microdc.cn
REACH COMPLIANT INFORMATION
This series has proven that this product does not contain harmful chemicals, it also has
harmful chemical substances through the registration, inspection and approval.
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 3 of 3
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