A1209XS [MICRODC]
Isolated 1W Dual Output DC/DC Converters;
| 型号： | A1209XS |
| 厂家： | 
MICRODC POWER TECHNOLOGY CO., LTD |
| 描述： | Isolated 1W Dual Output DC/DC Converters |
| 文件： | 总5页 (文件大小：579K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
A-XD&A-XS Series
Isolated 1W Dual Output DC/DC Converters
SELECTION GUIDE
Input
Output
Current
Efficiency
(%.Typ.)
Isolation
MTTF1
KHrs
Capacitance
Order code
Voltage(VDC)
Nominal
Current (mA)
Voltage
(VDC)
(mA)
MAX
pF
A0505XS
A0509XS
A0512XS
A0515XS
A1205XS
A1209XS
A1212XS
A1215XS
A1505XS
A1512XS
A2412XS
A2415XS
A4805XS
A4809XS
A4812XS
A4815XS
A0505XD
A0509XD
A0512XD
A0515XD
A1205XD
A1209XD
A1212XD
A1215XD
A1505XD
A1512XD
A2412XD
A2415XD
A4805XD
A4809XD
A4812XD
A4815XD
5
289
267
260
256
120
113
111
110
91
±5
±9
±100
±55
±42
±33
±100
±55
±42
±33
±100
±42
±42
±33
±100
±55
±42
±33
±100
±55
±42
±33
±100
±55
±42
±33
±100
±42
±42
±33
±100
±55
±42
±33
69
75
77
78
69
74
75
76
71
78
80
80
70
80
80
80
69
75
77
78
69
74
75
76
71
78
80
80
70
80
80
80
28
32
34
36
33
46
55
54
39
68
65
95
26
38
52
56
28
32
34
36
33
46
55
54
39
68
65
95
26
38
52
56
3103
2257
1579
1065
2193
1734
1303
932
5
FEATURES
5
±12
±15
±5
◆Footprint from 1.17cm2
5
12
12
12
12
15
15
24
24
48
48
48
48
5
◆I/O isolation voltage 1000VDC
◆Operating Temperature: -40℃～﹢85℃
◆High efficiency up to 80%
±9
±12
±15
±5
1941
790
87
±12
±12
±15
±5
◆Fully encapsulated toroidal magnetics
◆Internal SMD construction
52
134
52
101
30
206
◆Power density up to 0.85W/cm3
◆No electrolytic or tantalum capacitors
◆5V,9V,12V and 15V output
26
±9
174
26
±12
±15
±5
139
26
104
289
267
260
256
120
113
111
110
91
3103
2257
1579
1065
2193
1734
1303
932
5
±9
◆No heatsink required
5
±12
±15
±5
5
◆Dual output from a single input rail
◆UL 94V-0 package material
◆No external components required
◆Industry standard pinout
12
12
12
12
15
15
24
24
48
48
48
48
±9
±12
±15
±5
1941
790
87
±12
±12
±15
±5
◆Power sharing on output
52
134
52
101
◆MTTF up to 3.1 million hours
30
206
26
±9
174
MODEL SELECTION
26
±12
±15
139
①
②
③
④
⑤
A 05 05 X S
26
104
1. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
①Product Series
③Output Voltage
⑤SIP Package
②Input Voltage
④Fixed Input
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
Input Characteristics
Parameter
Conditions
Min.
Typ. Max. Units
Continuous operation,5V input
Continuous operation,12V input
Continuous operation, 15V input
Continuous operation,24V input
Continuous operation,48V input
4.5
5
5.5
13.2
16.5
26.4
52.8
40
VDC
VDC
APPLICATIONS
10.8
13.5
21.6
43.2
12
15
24
48
20
The A-X(S)D series of industrial temperature
range DC/DC converters are the standard
building blocks for on-board distributed power
systems.They are ideally suited for providing
dual rail supplies on primarily digital boards with
the added benefit of galvanic isolation to reduce
switching noise.All of the rated power may be
drawn from a single pin provided the total load
does not exceed 1 Watt.
Voltage range
VDC
VDC
VDC
Reflected ripple current
mA p-p
Absolute Maximum Ratings
Parameter
Conditions
Lead temperature 1.5mm from case for 10 seconds
Internal power dissipation
300℃
450mW
7V
Input voltage V , A05 types
Input voltage Vin, A12 types
15V
Input voltage Vin, A15 types
18V
Input voltage Vin, A24 types
28V
MICRODC RESERVES THE COPYRIGHT
Input voltage Vin, A48 types
54V
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Page 1 of 5
A-XD&A-XS Series
Output Specifications
Parameter
Conditions
Min.
Typ.
Max.
Units
Rated Power
1.0
1.0
W
W
TA= -40°C to 120°C
TA=0°C to 70°C
Rated Power(A24、A48)
Voltage Set Point Accuracy
Line regulation
See tolerance envelope
High VIN to low VIN
1.0
1.2
1.2
15
%%
%%
%
Line regulation(A24、A48)
High VIN to low VIN
10% load to rated load, 5V output types
10% load to rated load,all other output types
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
10% load to rated load, 5V output types
10% load to rated load,12V output types
10% load to rated load, 15V output types
BW=DC to 20MHz, all input types
BW=DC to 20MHz, 5V output types
BW=DC to 20MHz, 9V output types
BW=DC to 20MHz, 12V output types
BW=DC to 20MHz, 15V output types
Load regulation(A24、A48)
10
%
Load regulation(5Vinput、
10
9
12.5
10
%
%
12Vinput)
6.5
6
7.5
7.0
10
%
%
Load regulation(15V input)
5.5
2.6
2.3
%
3.0
3.0
150
20
%
%
Ripple＆Noise(A24、A48)
Ripple＆Noise
mV p-p
mV p-p
mV p-p
mV p-p
mV p-p
10
7
15
7.5
8
15
15
Isolation Characteristics
Parameter
Conditions
Min.
Typ.
Max.
Max.
Units
Isolation voltage
Resistance
Flash tested for 1 second
Viso= 1000VDC
1000
VDC
GΩ
10
Resistance(A24、A48)
Viso= 500VDC
10
GΩ
General Characteristics
Parameter
Conditions
Min.
Typ.
Units
5V input types
12V input types
15V input types
All input types
110
140
90
kHz
kHz
kHz
kHz
Switching frequency
Switching frequency(A24、A48)
Temperature Characteristics
Parameter
100
Conditions
Min.
Typ.
Max.
Units
Specification
Specification
Storage
A05、A12、A15
A24、A48
-40
0
85
70
℃
℃
℃
℃
℃
℃
℃
℃
A05、A12、A15
A24、A48
-50
-55
130
150
Storage
Case temperature rise
0505,1205
33
28
26
17
0509,0512,0515,1209,1212,1215
1505
above
ambient
1512,1515
Cooling
Free air convection
Temperature derating graph
Tolerance envelope
)
5V & 12V Input 24V & 48V Input
70° c85° c
W
(
r
e
w
o
P
t
u
p
t
u
O
Ambient Temperature (
C)
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Page 2 of 5
A-XD&A-XS Series
Technical notes
ISOLATION VOLTAGE
"Hi Pot Test","Flash Tested","Withstand 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.
Professional Power Module A 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 A 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-acssible 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 greatre degree depending on materials.
Construction and environment. The A 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 for better than functional isolation where the wire enamel insulation is always supplemented by a further
insulation system of physical spacing or barriers.
Technical notes
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: Ceramic chip capacitors are recommended. It is required that the ESR(Equivalent Series Resistance)should be as low as possible.X7R 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 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.
Ripple & Noise Characterisation Method
Ripple and noise measurements are performed with the following test configuration.
C1
C2
1μF X7R multilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC/DC converter
10μF tantalum capacitor, voltage rating to be a minimum of 1.5 times the output voltage of the DC/DC converter with an ESR of less than 100mΩ at 100 KHz
100nF multilayer ceramic capacitor, general purpose
C3
R1
450Ω resistor, carbon fi lm, ±1% tolerance
R2
50Ω BNC termination
T1
3T of the coax cable through a ferrite toroid
RLOAD
R3
Resistive load to the maximum power rating of the DC/DC converter. Connections should be made via twisted wires
50Ω resistor, carbon film,±1%
Measured values are multiplied by 10 to obtain the specified values.
Differential Mode Noise Test Schematic
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Page 3 of 5
A-XD&A-XS Series
OUTLINE DIMENSIONS ＆ FOOTPRINT DETAILS
MECHANICAL DIMENSIONS
FOOTPRINT DETAILS
DIP Package
SIP Package
-14 PIN DIP
Function
-7 PIN SIP
Function
Pin
1
Pin
1
-Vin
NC
+Vin
-Vin
7
2
8
4
0V
-Vout
0V
9
5
+Vout
-Vout
+Vin
11
14
6
+Vout
NC - Not available for electrical connection.
Specifcations can be changed any time without notice.
No parallel connection or plug and play.
Note:
1. The load shouldn't be less than 10%, otherwise ripple will increase dramatically.
2. Operation under 10% load will not damage the converter; However, they may not meet all specification listed.
3. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load
unless otherwise specified.
All dimensions in inches ±0.01(mm±0.25mm).All pins on a 0.1(2.54) pitch and within ±0.01(0.25)of true position.
Weight: 2.4g (DIP) 2.1g (SIP)
4. In this datasheet, all the test methods of indications are based on corporate standards.
Recommended footprint details
14 PIN DIP Package
7 PIN SIP Package
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Page 4 of 5
A-XD&A-XS Series
TUBE OUTLINE DIMENSIONS
14 PIN DIP Tube
7 PIN SIP Tube
Unless otherwise stated all dimensions in inches (mm) ±0.5mm.
Tube length (14 Pin DIP) : 20.47 (520mm ±2mm).
Tube length (7 Pin SIP) : 20.47 (520mm ±2mm).
Tube Quantity :25
http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 5 of 5
相关型号：
A120J15C0GF5TAA
Ceramic Capacitor, Multilayer, Ceramic, 50V, 5% +Tol, 5% -Tol, C0G, 30ppm/Cel TC, 0.000012uF, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT
VISHAY
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