D-NXT

D-NXT Series
1W,FIXED INPUT, ISOLATED & UNREGULATED TWIN OUTPUT ULTRAMINIATURE SMD PACKAGE DC-DC CONVERTER
PRODUCT PROGRAM
Input
Part
Number
FEATURES
◆
Efficiency up to 80%
Output
Voltage(VDC)
Voltage
Range
D050505NXT
5
4.5-5.5
5/5
100/100
10/10
70
D050909NXT
5
4.5-5.5
9/9
56/56
6/6
75
D051212NXT
5
4.5-5.5
12/12
42/42
4/4
79
D051515NXT
5
4.5-5.5
15/15
33/33
3/3
80
D120505NXT
12
10.8-13.2
5/5
100/100
10/10
72
D120909NXT
12
10.8-13.2
9/9
56/56
6/6
75
D121212NXT
12
10.8-13.2
12/12
42/42
4/4
78
12
10.8-13.2
15/15
33/33
3/3
80
◆
Twin Independent Output
◆
Small Footprint
Note: The D_NXT-W2/W5 series also are available in our company.
◆
SMD Package Styles
Industry Standard Pinout
◆
No Heatsink Required
◆
1kVDC Isolation
(%,Typ)
Nominal
D121515NXT
◆
Efficiency
Current(MA)
(VDC)
Max
Min.
COMMON SPECIFICATIONS
◆
High Power Density
◆
Temperature Range: -40℃~ +85℃
◆
No External Component Required
Operating temperature
-40
85
◆
Internal SMD construction
Storage temperature
-55
125
◆
RoHS Compliance
Temp. rise at full load
Item
Test Conditions
Min.
Typ.
Storage humidity
Max.
Unit
95
%
℃
Lead temperature
MODEL SELECTION
①
②
③
④
⑤
⑥
1.5mm from case for 10 seconds
300
1
Cooling
②Input Voltage
④The 2nd Output Voltage
⑥Fixed Input
S
Free air convection
package material
Epoxy Resin (UL94-V0)
MTBF
3500
Weight
K hours
2.1
g
*Supply voltage must be discontinued at the end of short circuit duration.
APPLICATIONS
The D-NXT 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);
ISOLATION SPECIFICATIONS
3) Where the regulation of the output voltage
Item
Test Conditions
and the output ripple and noise are not demanding.
Tested for 1 minute and 1mA max
Such as:purely digital circuits , ordinary low Isolation voltage(Vin/Vout)
frequency analog circuits and IGBT power device Isolation voltage(Vo1/Vo2)
Tested for 1 minute and 1mA max
driven circuits, etc.
MICRODC R ESERVES THE COPYRIGHT
http://www.microdc.cn
15
Short circuit protection*
⑦
D 05 05 05 N X T
①Product Series
③The 1st Output Voltage
⑤No Pin
⑦SMD Package
25
Min.
Typ.
Max
Units
1000
VDC
1000
VDC
Isolation resistance(Vin/Vout)
Test at 500VDC
1000
MΩ
Isolation resistance(Vo1/Vo2)
Test at 500VDC
1000
MΩ
Isolation capacitance(Vin/Vout)
60
pF
Isolation capacitance(Vo1/Vo2)
60
pF
Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
Page 1 of 3
D-NXT Series
APPLICATION NOTE
OUTPUT SPECIFICATIONS
Item
Test Conditions
Output power
Min.
Typ.
0.1
Max.
Units
1
W
±1.2
%
12.8
15
%
10% to 100% load(9V output)
8.3
10
%
Load regulation
10% to 100% load(12V output)
6.8
10
%
Load regulation
10% to 100% load(15V output)
6.0
10
%
Line regulation
For Vin change of ±1%
Load regulation
10% to 100% load(5V output)
Load regulation
Output voltage accuracy
See tolerance envelope graph
Temperature drift
100% full load
Ripple & Noise*
20MHz Bandwidth
50
Switching frequency
Full load, nominal input
100
*Test ripple and noise by "Parallel cable"method . See detailed operation
±0.03
%/℃
75
mVp-p
instructions
KHz
at Testing of
Power Converter section, application notes.
RECOMMENDED CIRCUIT
RECOMMENDED REFLOW SOLDERING PROFILE
Remark: The curve applies only to the hot air reflow soldering
TYPICAL CHARECTERISTICS
EXTERNAL CAPACITOR TABLE (TABLE 1)
1) Requirement On Output Load
To ensure this module can operate efficiently and reliably, a minimum load is specified for this kind of
DC/DC converter in addition to a maximum load (namely full load). During operation, make sure
the
specified range of input voltage is not exceeded, the minimum output load could not be less than 10% of
the full load. If the actual output power is very small, please connect a resistor with proper resistance at
the output end in parallel to increase the load, or use our company products with a lower rated output
power (D-NXT -W2/W5).
2) Recommended testing circuit
If you want to further decrease the input/output ripple , an "LC" filtering network may be connected to
the input and output ends of the DC/DC converter, see (Figure1).
It should also be noted that the inductance and the frequency of the "LC" Filtering network should be
staggered with the DC/DC frequency to avoid mutual interference. However, the capacitance of the
It's not recommended to connect any external capacitor
in the application field with less than 0.5 watt output.
output filter capacitor must be proper . If the capacitance is too big , a startup problem might 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 circuit of these products has no protection against
overload . The simplest method is to connect a self-recovery fuse in series at the input end or add a
circuit breaker to the circuit.
5) Cannot use in parallel and hot swap
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Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
Page 2 of 3
D-NXT 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]
Devices per tube quantity: 28pcs
L=220mm[8.661inch]
Devices per tube quantity: 10pcs
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
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
RoHS COMPLIANT INFORMATION
Microdc Professional Power Module,Inc.
Tel:0086-20-86000646
E-mail:[email protected]
Website:http://www.microdc.cn
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.
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:[email protected] Tel:0086-20-86000646
Page 3 of 3
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