additional external load capacitance the rise time of the input voltage will determine the maximum external
capacitance value for guaranteed start up. The slower the rise time of the input voltage the greater the maximum value of the
additional external capacitance for reliable start up.
INPUT CHARACTERISTICS
Parameter
Voltage range
Conditions
Continuous operation, 3V input types
Continuous operation, 5V input types
Continuous operation, 12V input types
Min.
2.97
4.5
10.8
Typ.
3.3
5
12
Max.
3.63
5.5
13.2
Units
V
OUTPUT CHARACTERISTICS
Parameter
Rated Power
Voltage Set Point Accuracy
Line regulation
2
Conditions
T
A
=-40
ºC
to 60
ºC
See tolerance envelopes
High V
IN
to low V
IN
10% load to rated load, xx03
10% load to rated load, 0505
10% load to rated load, 0509, 0512, 0515
10% load to rated load, 12xx
10% load to rated load, 5V output types
10% load to rated load, 9V output types
10% load to rated load, 12V output types
10% load to rated load, 15V output types
All types
Min.
Typ.
Max.
1
Units
W
%/%
%
PRODUCT OVERVIEW
The NMJ series are dual and single output
DC/DC converters in a 7 pin SIP package style
offering pin and functionality compatibility with
the NMV series SIP DC/DC converters. The NMJ
series is UL60950 recognized and suitable for
applications where safety and miniaturisation
are of paramount importance. Isolation barrier
approved for supplementary/reinforced insulation
- see page 2.
Load regulation
Single outputs
Load regulation
Dual outputs
Zero Load Power Consumption
1.0
10.0
7.0
6.0
5.0
10.0
6.0
6.0
6.0
250
1.2
15.0
10.0
10.0
7.0
15.0
10.0
10.0
10.0
%
mW
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection
3
Lead temperature 1.5mm from case for 10 seconds
Input voltage V
IN
, NMJ03 types
Input voltage V
IN
, NMJ05 types
Input voltage V
IN,
NMJ12 types
1 second
300°C
5V
7V
15V
25
For full details go to
www.cd4power.com/rohs
1. Calculated using MIL-HDBK-217 FN2 calculation model with nominal input voltage at full load.
2. See derating graph.
3. Supply voltage must be discontinued at the end of the short circuit duration.
4. See ripple & noise test method.
All specifications typical at T
A
=25°C, nominal input voltage and rated output current unless otherwise specified.
D C / D C
Technical enquiries
email: mk@cdtechno.com, tel:
+44 (0)1908 615232
C O N V E R T E R S
KDC_NMJC.G01
Page 1 of 6
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POWER ELECTRONICS DIVISION
NMJ SERIES
5.2kVDC Isolated 1W DC/DC Converters
Min.
5200
1
ISOLATION CHARACTERISTICS
Parameter
Isolation test voltage
Resistance
Conditions
Flash tested for 1 second
Viso= 500VDC
Typ.
Max.
Units
VDC
GΩ
GENERAL CHARACTERISTICS
Parameter
Switching frequency
Conditions
Single output
Dual output
Min.
Typ.
45
70
Max.
Units
kHz
TEMPERATURE CHARACTERISTICS
Parameter
Specification
Storage
Case Temperature above ambient
Cooling
Conditions
All output types
All output types
Free air convection
Min.
-40
-55
Typ.
Max.
60
130
33
Units
°C
TEMPERATURE DERATING GRAPH
1.5
TOLERANCE ENVELOPE
+10%
+6%
V
NOM
TOLERANCE ENVELOPE, 3.3V in, 3V out type only
+9%
Output Power (W)
1.0
0.5
0
-40
Safe Operating Area
60ºC
Typical
Lo
ad Line
+2.5%
-4%
-7.5%
V
NOM
+1%
-7%
Typical
L
oad Lin
e
+1%
-7%
-15%
Output Voltage
0
40
Ambient Temperature (ºC)
80
10
75
50
25
Output Load Current (%)
100
Output Voltage
10
75
50
25
Output Load Current (%)
100
TECHNICAL NOTES
ISOLATION VOLTAGE
‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof Voltage’, ‘Dielectric Withstand Voltage’ & ‘Isolation Test Voltage’ are all terms that relate to the same thing, a test
voltage, applied for a specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation.
C&D Technologies NMJ series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 5.2kVDC for 1 second.
A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?”
The NMJ series has been recognized by Underwiters Laboratory to 300Vrms for Supplementary Insulation and 150Vrms for Reinforced Insulation.
REPEATED HIGH-VOLTAGE ISOLATION TESTING
It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on
materials, construction and environment. We therefore strongly advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be
reduced by 20% from specified test voltage.
SAFETY APPROVAL
The NMJ series has been recognised by Underwriters Laboratory (UL) to UL 60950 for supplementary insulation up to 300Vrms and reinforced insulation up to 150Vrms at a
maximum ambient temperature of 60ºC. File number E179522 applies.
RoHS COMPLIANCE INFORMATION
This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300ºC for 10 seconds. The pin termination finish
on this product series is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. The series is backward compatible with Sn/Pb soldering
systems.
For further information, please visit www.cd4power.com/rohs
D C / D C
C O N V E R T E R S
KDC_NMJC.G01
Page 2 of 6
www.cd4power.com
Technical enquiries
email: mk@cdtechno.com, tel:
+44 (0)1908 615232
POWER ELECTRONICS DIVISION
NMJ SERIES
5.2kVDC Isolated 1W DC/DC Converters
OUTPUT RIPPLE REDUCTION
By using the values of inductance and capacitance stated, the output ripple at the rated load is lowered to 5mV p-p max.
Component selection
Capacitor: It is required that the ESR (Equivalent Series Resistance) should be as low as possible, ceramic types are recommended.
The voltage rating should be at least twice (except for 15V output), the rated output voltage of the DC/DC converter.
Inductor: The rated current of the inductor should not be less than that of the output of the DC/DC converter. At the rated current, the DC resistance of the inductor should be
such that the voltage drop across the inductor is <2% of the rated voltage of the DC/DC converter. The SRF (Self Resonant Frequency) should be >20MHz.
L
Power
Source
DC
DC
C
Load
L, µH
3.3V single output types
5V single output types
9V single output types
12V single output types
15V single output types
Inductor
Through Hole
SMD
Consult Factory
Consult Factory
Consult Factory
Consult Factory
Consult Factory
+V
OUT
L
C, µF
Capacitor
Size
V rating, V
Power
Source
DC
DC
OV
-V
OUT
L
C
C
Load
Load
5V dual output types
9V dual output types
12V dual output types
15V dual output types
L, µH
22
68
Inductor
Through Hole
22R223C
22R224C
SMD
82223C
Consult Factory
82224C
Consult Factory
C, µF
4.70
0.47
Capacitor
Size
1206
0805
V rating, V
10
25
D C / D C
C O N V E R T E R S
KDC_NMJC.G01
Page 3 of 6
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Technical enquiries
email: mk@cdtechno.com, tel:
+44 (0)1908 615232
POWER ELECTRONICS DIVISION
NMJ SERIES
5.2kVDC Isolated 1W DC/DC Converters
OUTPUT RIPPLE REDUCTION (continued)
SMD option 8200 Inductor Series Mechanical Dimensions
2.5 (0.098)
±0.2 (0.008)
Through hole option 2200R Inductor Series Mechanical Dimensions
0.283±0.020
(7.2±0.50)
2.0 (0.080)
±0.3 (0.012)
3.81 (0.15)
1.52
(0.060)
332C
3.2 (0.126)
±0.3 (0.012)
2.5 (0.0984)
±0.2 (0.008)
0.7
(0.028)
Min.
103C
3.05 (0.120)
0.335±0.020
(8.5±0.50)
Recommended pad layout
1.75 (0.069)
Direction of unreeling
3.81 (0.15)
1.52
(0.060)
1.5
(0.0
4.0
(0.157)
5.50
(0.217)
12.0 (0.472)
1.614±0.130
(41.00±3.30)
59)
332
C
332
C
332
C
0.413 (10.50) Max.
3.05 (0.120)
0.6 (0.024)
2.4 (0.095)
0.024±0.002
(0.60±0.05)
Recommended footprint
Ø0.047
+0.006
+0.15
Ø1.20
-0.000
-0.00
4)
95)
0.118(3.00)
All dimensions in inches (mm).
All dimensions in inches (mm).
For more information please visit www.cd4power.com
D C / D C
C O N V E R T E R S
KDC_NMJC.G01
Page 4 of 6
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Technical enquiries
email: mk@cdtechno.com, tel:
+44 (0)1908 615232
1.772±0.130
(45.00±3.30)
POWER ELECTRONICS DIVISION
NMJ SERIES
5.2kVDC Isolated 1W DC/DC Converters
RIPPLE & NOISE CHARACTERISATION METHOD
All measurement to be taken with the following components connected to the UUT as detailed below.
50 Ohm coax cable, solder connections one end, BNC plug at the other end.
C1
C2
C3
R1
R2
T1
– 1µF X7R multilayer ceramic capacitor rated at minimum 3 x the output voltage of the UUT
– 10µF tantalum capacitor rated at minimum 1.5 x the output voltage of the UUT with ESR of less
than 100 milliohms at 100 kHz e.g. AVX TPS series.
– 100nF multilayer ceramic capacitor, general purpose
– 450 Ohm resistor, carbon film, ±1%
– 50 Ohm BNC termination
– 3T of the coax cable through a ferrite toroid eg Ferroxcube TN32/19/13-3E25
RLOAD – Resistive load at the UUT maximum rating. Connections via twisted wires.
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