The MIAR03 series is a range of isolated 3W DC/DC converter modules featuring fully regulated output voltages and narrow input voltage ranges.Excellent
efficiency allow an operating temperature range of -40°C to +85°C (with Derating).The product comes in a DIP-24 Plastic package with alternative pinout
which makes these converters also a perfect replacement for the popular S200R series.These DC/DC converters offer a very economical solution for many
cost critical applications.
Model Selection Guide
Model
Number
Input
Voltage
(Range)
VDC
Output
Voltage
VDC
5
12
15
±12
±15
5
12
15
±12
±15
5
12
15
±12
±15
Output Current
Max.
Input Current
@Max. Load
mA(typ.)
857
769
769
769
769
338
316
316
316
316
167
158
158
158
156
@No Load
mA(typ.)
90
Max. capacitive
Load
µF
470
100
100
100#
100#
470
100
100
100#
100#
470
100
100
100#
100#
MIAR03-05S05
MIAR03-05S12
MIAR03-05S15
MIAR03-05D12
MIAR03-05D15
MIAR03-12S05
MIAR03-12S12
MIAR03-12S15
MIAR03-12D12
MIAR03-12D15
MIAR03-24S05
MIAR03-24S12
MIAR03-24S15
MIAR03-24D12
MIAR03-24D15
5 ±10%
12 ±10%
24 ±10%
mA
600
250
200
±125
±100
600
250
200
±125
±100
600
250
200
±125
±100
@Max. Load
%
70
78
78
78
78
74
79
79
79
79
75
79
79
79
80
Efficiency
(typ.)
45
22
# For each output
Input Specifications
Parameter
Input Voltage Range
24V Input Models
5V Input Models
12V Input Models
5V Input Models
Model
Min.
10.8
-0.7
4.5
Typ.
12
---
5
Max.
13.2
7.5
30
15
5.5
Unit
21.6
-0.7
---
---
24
---
26.4
VDC
Input Surge Voltage (1 sec. max.)
Short Circuit Input Power
Conducted EMI
24V Input Models
All Models
12V Input Models
-0.7
Internal Power Dissipation
---
---
---
2000
2500
mW
mW
Compliance to EN 55022,class A and FCC part 15,class A
Operating Ambient Temperature Range (See Power Derating Curve)
Storage Temperature Range
Humidity (non condensing)
Cooling
Parameter
Natural Convection
Conditions
Min.
-40
---
Max.
+85
+95
95
Unit
℃
℃
℃
% rel. H
℃
-50
Free-Air convection
---
---
+125
Lead Temperature (1.5mm from case for 10Sec.)
260
Power Derating Curve
E-mail:sales@minmax.com.tw
Tel:886-6-2923150
2013/01/30 P5
Page 2 of 4
Output Power (%)
®
Notes
1
2
4
5
3
DC/DC CONVERTER 3W, DIP-Package
Specifications typical at Ta=+25℃, resistive load, nominal input voltage and rated output current unless otherwise noted.
Ripple & Noise measurement bandwidth is 0-20MHz.
All DC/DC converters should be externally fused at the front end for protection.
Other input and output voltage may be available, please contact factory.
Specifications are subject to change without notice.
That “natural convection” is about 20LFM but is not equal to still air (0 LFM).
MIAR03 SERIES
6
Package Specifications
Mechanical Dimensions
Pin Connections
Pin
Single Output
10.2
[0.40]
1
2
3
+Vin
NC
NC
Dual Output
-Vout
+Vin
10
0.50 [0.02]
4.5
[0.18]
12
13
14
15
22
23
24
11
+Vout
-Vin
-Vin
-Vout
Common
+Vout
-Vin
-Vin
Common
1
2
3
10
11
12
+Vout
-Vout
NC
NC
15.22 [0.60]
20.3 [0.80]
Bottom View
24
23
22
15
14
13
Common
-Vout
+Vin
Common
+Vout
+Vin
NC: No Connection
31.8 [1.25]
[2x0.10]
2x2.54
2.54
[0.10]
2x2.54
[2x0.10]
17.78 [0.70]
2.0
[0.08]
►All
dimensions in mm (inches)
►Tolerance:
X.X±0.5 (X.XX±0.02)
►
Pin diameter
—
0.5 ±0.05 (0.02±0.002)
X.XX±0.25 ( X.XXX±0.01)
Physical Characteristics
Case Size
Pin Material
Weight
Case Material
:
:
:
:
31.8x20.3x10.2 mm (1.25x0.80x0.40 inches)
Copper-Clad Steel Wire
12.4g
Non-Conductive Black Plastic (flammability to UL 94V-0 rated)
E-mail:sales@minmax.com.tw
Tel:886-6-2923150
2013/01/30 P5
Page 3 of 4
®
Test Setup
DC/DC CONVERTER 3W, DIP-Package
Peak-to-Peak Output Noise Measurement Test
MIAR03 SERIES
Us
e a Cout 0.33µF ceramic capacitor.
Scope measurement should be made by using a BNC socket, measurement bandwidth is 0-20 MHz. Position the load between 50 mm and 75 mm from the DC/DC
Converter.
+Vin
Single Output
DC / DC
Converter
-Vin
-Out
+Out
Copper Strip
Cout
Copper Strip
Resistive
Scope
Load
+Vin
Dual Output
DC / DC
Converter
-Vin
+Out
Com.
-Out
Copper Strip
Cout
Copper Strip
Cout
Copper Strip
Scope
Scope
Resistive
Load
Technical Notes
The MIAR03 series has limitation of maximum connected capacitance at the output. The power module may be operated in current limiting mode during start-up,
affecting the ramp-up and the startup time. The maximum capacitance can be found in the data sheet.
Input Source Impedance
Maximum Capacitive Load
The power module should be connected to a low ac-impedance input source. Highly inductive source impedances can affect the stability of the power module.
In applications where power is supplied over long lines and output loading is high, it may be necessary to use a capacitor at the input to ensure startup.
Capacitor mounted close to the power module helps ensure stability of the unit, it is recommended to use a good quality low Equivalent Series Resistance (ESR <
1.0 at 100 KHz) capacitor of a 4.7µF for the 5V input devices and a 2.2µF for the 12V and 24V devices.
+
DC Power
Source
-
+
Cin
-Vin
-Out
+Vin
DC / DC
Converter
+Out
Load
Output Ripple Reduction
A good quality low ESR capacitor placed as close as practicable across the load will give the best ripple and noise performance. To reduce output ripple, it is
recommended to use 1.5µF capacitors at the output.
+
DC Power
Source
-
-Vin
+Vin
Single Output
DC / DC
Converter
-Out
+Out
+
DC Power
Source
-
+Vin
+Out
Dual Output
DC / DC Com.
Converter
Cout
Cout
Load
Load
Cout
Load
-Vin
-Out
Thermal Considerations
Many conditions affect the thermal performance of the power module, such as orientation, airflow over the module and board spacing. To avoid exceeding the
maximum temperature rating of the components inside the power module, the case temperature must be kept below 95℃. The derating curves are determined
from measurements obtained in a test setup.
Position of air velocity
probe and thermocouple
15mm / 0.6in
50mm / 2in
Air Flow
DUT
18, Sin Sin Road, An-Ping Industrial District, Tainan 702, Taiwan
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