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
Reflected ripple current
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
41
Max.
3.63
5.5
13.2
50
Units
V
mA p-p
ISOLATION CHARACTERISTICS
Parameter
Isolation voltage
Resistance
Conditions
Flash tested for 1 second
Viso= 1000VDC
Min.
1000
10
Typ.
Max.
Units
VDC
GΩ
GENERAL CHARACTERISTICS
Parameter
Switching frequency
PRODUCT OVERVIEW
The NTA series of miniature surface mounted
DC/DC Converters employ leadframe
technology and transfer moulding techniques
to bring all of the benefits of IC style
packaging to hybrid circuitry. Co-planarity of the
lead positions is based upon IEC 191-6:1990. The
devices are suitable for all applications where
high volume production is envisaged.
Conditions
0312MC, 0315MC
0303MC, 0305MC, 0503MC, 0505MEC
All other variants
Min.
Typ.
100
110
115
Max.
Units
kHz
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection
3
Lead temperature 1.5mm from case for 10 seconds
Internal power dissipation
Input voltage V
IN
, NTA03 types
Input voltage V
IN
, NTA05 types
Input voltage V
IN
, NTA12 types
1 second
300°C
700mW
5.5V
7V
15V
1. If components are required in tape and reel format suffix order code code with -R, e.g. NTA0505MC-R.
2. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
3. Supply voltage must be disconnected at the end of the short circuit duration.
All specifications typical at T
A
=25°C, nominal input voltage and rated output current unless otherwise specified.
D C / D C
C O N V E R T E R S
KDC_NTA_G02
Page 1 of 4
www.cd4power.com
Technical enquiries
email: mk@cdtechno.com, tel:
+44 (0)1908 615232
POWER ELECTRONICS DIVISION
NTA SERIES
Isolated 1W Dual Output SM DC/DC Converters
Min.
Typ.
Max.
1.0
1.0
10
10
9.0
6.5
11
6.0
6.0
40
50
35
50
65
1.2
15
12
10
8.0
14
8.5
7.0
80
100
80
110
110
OUTPUT CHARACTERISTICS
Parameter
Rated Power
Voltage Set Point Accuracy
Line regulation
Conditions
T
A
=-40°C to 85°C
See tolerance envelope
High V
IN
to low V
IN
10% load to rated load, 0303MC & 0503MC
10% load to rated load, 5V output types
10% load to rated load, 0309MC
10% load to rated load, 0509MC & 1209MC
10% load to rated load, 0312MC & 0315MC
10% load to rated load, 0512MC & 1212MC
10% load to rated load, 0515MC & 1215MC
BW=DC to 20MHz, 3.3V output types, NTA0305MC & NTA0505MEC
BW=DC to 20MHz, all other 5V output types
BW=DC to 20MHz, 9V output types
BW=DC to 20MHz, 12V output types
BW=DC to 20MHz, 15V output types
Units
W
%/%
Load Regulation
1
%
Ripple and Noise
mV p-p
TEMPERATURE CHARACTERISTICS
Parameter
Specification
Storage
Case temperature rise above
ambient
Cooling
Conditions
All output types
0305MC, 0505MEC, 0312MC, 0315MC
0303MC, 0309MC, 0503MC
0505MC, 1205MC
All other variants
Free air convection
Min.
-40
-55
Typ.
Max.
85
125
Units
19
25
46
35
°C
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 NTA series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 1kVDC for 1 second.
A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?”
For a part holding no specific agency approvals, such as the NTA series, both input and output should normally be maintained within SELV limits i.e. less than 42.4V peak, or
60VDC. The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system. The part
could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier; but then the circuitry on both sides of the barrier must
be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-accessible circuitry according to
safety standard requirements.
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. The NTA series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enameled wire. While
parts can be expected to withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any material, including this enamel (typically
polyurethane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. 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.
This consideration equally applies to agency recognized parts rated for better than functional isolation where the wire enamel insulation is always supplemented by a further
insulation system of physical spacing or barriers.
TEMPERATURE DERATING GRAPH
1.5
RoHS COMPLIANCE INFORMATION
This series is compatible with RoHS soldering
systems with a peak reflow solder temperature
of 245ºC and time above liquidus of 217ºC
for 80 seconds. The pin termination finish on
this product series is Gold, plating thickness
0.1 microns minimum. The series is backward
compatible with Sn/Pb soldering systems.
Output Power (W)
1.0
0.5
0
-40
85°C
Safe Operating Area
100
50
0
Ambient Temperature (°C)
150
For further information, please visit www.cd4power.com/rohs
1. 12V input types have typically 3% less load regulation change.
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_NTA_G02
Page 2 of 4
www.cd4power.com
POWER ELECTRONICS DIVISION
NTA SERIES
Isolated 1W Dual Output SM DC/DC Converters
All other types.
+10%
+5%
V
NOM
TOLERANCE ENVELOPES
Tolerance Envelope - 3.3V output types.
+9%
V
NOM
+1%
-7%
Typical
Lo
ad Line
+1%
-7%
-15%
Typical
L
oad Line
+2.5%
-2.5%
-7.5%
Output Voltage
Output Voltage
10
75
50
25
Output Load Current (%)
100
10
75
50
25
Output Load Current (%)
100
PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS
0.600 (15.24)
0.400 (10.16)
18
16
14
12
10
REFERENCE
PLANE
P
5
7
9
PIN CONNECTIONS
Pin
1
3
0.020(0.5)
Function
-V
IN
+V
IN
NA
OV
-V
OUT
NA
0.441
0.409
(11.20)
(10.40)
0.303
(7.70)
NTA0505MC
XYYWW
1
3
5
7
9
10
0.059(1.50)
0.047(1.20)
10 PINS
0.008(0.2)
S
±5.00
°
0.100(2.54)
0.026(0.65)
0.022(0.55)
12
14
16
18
+V
OUT
NA
NA
0.083
(2.10)
0.260 (6.6) 0.250 (6.35)
0.234 (5.95) 0.230 (5.85)
0.010 (0.25)
0.004 (0.10)
10 PINS
0.004 (0.1) S
DETAIL A
S SEATING PLANE
NA
NA - Not available for electrical connection.
0.11 (2.79) MAX
0.074
(1.875) MAX
0.012 (0.30)
0.008 (0.20)
All dimensions in inches ±0.01 (mm ±0.25mm). All pins on a 0.1 (2.54) pitch.
Weight: 1.53g
RECOMMENDED FOOTPRINT DETAILS
TUBE OUTLINE DIMENSIONS
Unless otherwise stated all dimensions in inches ±0.02 (mm±0.5).
Hello, seniors and juniors! Happy New Year! I wish you all your dreams come true, a successful career, rising steadily, abundant wealth, many children and grandchildren, harmonious family, good health...
With the rapid development of Internet hardware and software, embedded systems are widely used in various fields of work and life. How to manage these devices has become an important aspect in the dev...
A question about MAX6675: In my case, when I read the temperature, the temperature value does not change with the temperature of the thermocouple. I have to press the reset button to read the temperat...
PV DC fuses are safety devices used to protect PV panels, inverters, and DC loads. To ensure their safety and reliability, they must be UL248 certified.
Before applying for UL248 certifi...[Details]
A line scan lens is an industrial lens used with line scan cameras. Its imaging principle is to capture the image of the workpiece using a linear sensor and then perform digital signal processing t...[Details]
Electric vehicles are currently gaining momentum, but this is just a facade. Fuel-powered vehicles remain unchallenged. While electric vehicles boast unique advantages in environmental emissions an...[Details]
Capable of providing precise and efficient thermal management for artificial intelligence computing power, intelligent sensing and autonomous driving systems
Shenzhen, ...[Details]
With the rapid advancement of automation technology, collaboration between robots is no longer just science fiction. Imagine dozens of machines moving goods in a warehouse without interfering with ...[Details]
On August 21st, Zhiyuan Robotics revealed at its first partner conference that it expects shipments to reach thousands of units this year and tens of thousands next year. The company hopes to reach...[Details]
introduction
As “energy conservation and emission reduction” has become an indicator of the National Economic Development Outline of the 11th Five-Year Plan, people’s awareness of green enviro...[Details]
In the scorching summer, electric fans are a must-have for cooling down people's homes. However, I believe most people have encountered this situation: the fan is plugged in, the switch is pressed,...[Details]
Electric vehicles are becoming increasingly popular, with increasingly longer ranges. There are two ways to charge electric vehicles: slow charging and fast charging. Which is the most suitable? Sl...[Details]
UPS stands for Uninterruptible Power Supply, which includes energy storage devices. It is mainly used to provide uninterruptible power supply for devices that require high power stability.
...[Details]
In daily life, power transformers have different functions and uses due to different usage scenarios. The most common ones can be divided into: control transformers, isolation transformers, rectifi...[Details]
Consumer demand for premium listening experiences has driven rapid evolution in the wireless headphone market in recent years. Hybrid designs, which utilize two drivers per earbud to enhance sound ...[Details]
New version helps developers build secure and trustworthy embedded systems
Shanghai, China—August 21, 2025—
QNX, a division of BlackBerry Ltd., today announced the release of QNX...[Details]
In this final installment of a five-part blog series, I will discuss noise in op amps driving headphone loads and some techniques for reducing it. Previous posts have discussed headphone load power...[Details]
Cadence and NVIDIA Collaborate to Revolutionize Power Analysis Technology, Accelerating Development of Billion-Gate AI Designs
Cadence's new Palladium Dynamic Power Analysis applicat...[Details]
Embedded System
京公网安备 11010802033920号
EEWORLD
