MIW1300 Series
3W, Wide Input Range DIP, Single & Dual Output DC/DC Converter
Key Features
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Efficiency up to 80%
1500VDC Isolation
MTBF > 1,000,000 Hours
3:1 Wide Input Range
Short Circuit Protection
Complies with EN55022 Class A
Temperature Performance -25] to +71]
UL 94V-0 Package Material
Internal SMD Construction
Industry Standard Pinout
Minmax's MIW1300-Series power modules operate over a 3:1
input voltage ranges of 10-30VDC which provide precisely regulated
$
output voltages of 5V, 12V, 15V, {12V and {15VDC.
The -25] to +71] operating temperature range makes it ideal
for data communication equipments, mobile battery driven
Low Cost
equipments, distributed power systems, telecommunication
equipments, mixed analog/digital subsystems, process/machine
control equipments, computer peripheral systems and industrial robot
systems.
1500
VDC
The modules have a maximum power rating of 3W and a typical
full-load efficiency of 80%, continuous short circuit, 45mA output
ripple, EN55022 Class A conducted noise compliance minimize
I/O Isolation
design-in time, cost and eliminate the need for external filtering.
EMI
3:1
EN55022
Wide Range
Block Diagram
Single Output
+Vin
Dual Output
+Vo
LC
Filter
+Vin
+Vo
LC
Filter
Com.
-Vo
-Vin
1
PFM
Isolation
Ref.Amp
-Vo
-Vin
MINMAX
PFM
Isolation
Ref.Amp
REV:0 2005/04
MIW1300 Series
Model Selection Guide
Model
Number
MIW1322
MIW1323
MIW1324
MIW1326
MIW1327
Input
Voltage
Output
Voltage
VDC
VDC
5
12
15
{12
{15
20
( 10 ~ 30 )
Output Current
Max.
mA
600
250
200
{125
{100
Input Current
Min.
mA
60
25
20
{12.5
{10
@Max. Load
mA (Typ.)
188
188
188
188
188
Reflected
Ripple
Current
@No Load
mA (Typ.)
mA (Typ.)
5
20
Efficiency
@Max. Load
% (Typ.)
80
80
80
80
80
Notes :
Absolute Maximum Ratings
Parameter
Input Surge Voltage
Min.
Max.
Unit
-0.7
50
VDC
Lead Temperature (1.5mm from case for 10 Sec.)
---
260
]
Internal Power Dissipation
---
2,500
mW
Exceeding the absolute maximum ratings of the unit could cause damage.
These are not continuous operating ratings.
1. Specifications typical at Ta=+25], resistive load,
nominal input voltage, rated output current unless
otherwise noted.
2. Transient recovery time is measured to within 1%
error band for a step change in output load of 75%
to 100%.
3. Ripple & Noise measurement bandwidth is 0-20
MHz.
4. These power converters require a minimum
output loading to maintain specified regulation.
Environmental Specifications
Parameter
Conditions
Min.
Max.
Unit
Operating Temperature
Ambient
-25
+71
]
Operating Temperature
Case
-25
+90
]
Storage Temperature
-40
+125
]
Humidity
---
95
%
Cooling
Free-Air Convection
Conducted EMI
5. Operation under no-load conditions will not
damage these modules; however, they may not
meet all specifications listed.
6. All DC/DC converters should be externally fused at
the front end for protection.
7. Other input and output voltage may be available,
please contact factory.
8. Specifications subject to change without notice.
EN55022 Class A
Input Specifications
Parameter
Model
Start Voltage
Under Voltage Shutdown
Reverse Polarity Input Current
All Models
Short Circuit Input Power
Input Filter
REV:0 2005/04
Min.
Typ.
Max.
4.5
7
9
---
6.5
8.5
Unit
VDC
---
---
1
A
---
1000
1500
mW
Pi Filter
MINMAX
2
MIW1300 Series
Output Specifications
Parameter
Conditions
Output Voltage Accuracy
Min.
Typ.
Max.
Unit
%
---
{0.5
{2.0
Dual Output, Balanced Loads
---
{0.5
{2.0
%
Line Regulation
Vin=Min. to Max.
---
{0.2
{0.5
%
Load Regulation
Io=10% to 100%
---
{0.2
{0.5
%
---
45
60
mV P-P
Output Voltage Balance
Ripple & Noise (20MHz)
---
---
80
mV P-P
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Over Line, Load & Temp.
---
---
28
mV rms
Over Power Protection
120
---
---
%
Transient Recovery Time
---
300
500
uS
---
{3
{5
%
---
{0.01
{0.05
%/]
25% Load Step Change
Transient Response Deviation
Temperature Coefficient
Output Short Circuit
Continuous
General Specifications
Parameter
Isolation Voltage Rated
Conditions
Min.
Typ.
Max.
Unit
60 Seconds
1500
---
---
VDC
Flash Tested for 1 Second
1650
---
---
VDC
Isolation Resistance
500VDC
1000
---
---
M[
Isolation Capacitance
100KHz,1V
---
---
500
pF
---
300
---
KHz
1000
---
---
K Hours
Isolation Voltage Test
Switching Frequency
MTBF
MIL-HDBK-217F @ 25], Ground Benign
Capacitive Load
Models by Vout
Maximum Capacitive Load
5V
12V
15V
{12V #
{15V #
Unit
4000
4000
4000
470
470
uF
# For each output
Input Fuse Selection Guide
All Models
600mA Slow - Blow Type
Input Voltage Transient Rating
50
Vin ( VDC )
45
40
35
30
25
20
15
10
3
10uS
100uS
1mS
MINMAX
10mS
100mS
REV:0 2005/04
100
100
90
90
Efficiency (%)
Efficiency (%)
MIW1300 Series
80
70
60
80
70
60
50
Low
Nom
50
High
Low
Nom
Input Voltage (V)
Efficiency vs Input Voltage ( Dual Output )
100
100
90
90
80
80
Efficiency (%)
Efficiency (%)
Efficiency vs Input Voltage ( Single Output )
70
60
70
60
50
50
40
40
30
10
20
40
High
Input Voltage (V)
60
80
100
30
Load Current (%)
10
20
40
60
80
100
Load Current (%)
Efficiency vs Output Load ( Single Output )
Efficiency vs Output Load ( Dual Output )
100
400LFM
100LFM
Output Power (%)
80
200LFM
60
Natural
convection
40
20
0
〜
-25
50
60
70
90
80
Ambient Temperature
100
110
]
Derating Curve
REV:0 2005/04
MINMAX
4
MIW1300 Series
Test Configurations
Overcurrent Protection
Input Reflected-Ripple Current Test Setup
To provide protection in a fault (output overload) condition,
the unit is equipped with internal current limiting circuitry and
can endure current limiting for an unlimited duration. At the
point of current-limit inception, the unit shifts from voltage
control to current control. The unit operates normally once the
output current is brought back into its specified range.
Input reflected-ripple current is measured with a inductor
Lin (4.7uH) and Cin (220uF, ESR < 1.0[ at 100 KHz) to
simulate source impedance.
Capacitor Cin, offsets possible battery impedance.
Current ripple is measured at the input terminals of the
module, measurement bandwidth is 0-500 KHz.
To Oscilloscope
+
Battery
+
+Vin
Lin
Current
Probe
Cin
-Vin
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.
+Out
DC / DC
Converter
Input Source Impedance
Load
-Out
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 3.3uF for the devices.
Peak-to-Peak Output Noise Measurement Test
Use a Cout 0.47uF 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
+Out
+Vin
DC Power
Source
Copper Strip
+Vin
+
Cout
Dual Output
DC / DC
Converter
Com.
-Vin
-Out
Load
Cin
-Vin
-Out
Resistive
Scope
Load
Output Ripple Reduction
-Out
+Out
+Out
DC / DC
Converter
-
Single Output
DC / DC
Converter
-Vin
+
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 3.3uF
capacitors at the output.
Copper Strip
Cout
Scope
Cout
Scope
Resistive
Load
+
+Vin
DC Power
Source
Design & Feature Considerations
+Out
Single Output
DC / DC
Converter
Cout
-
-Vin
-Out
+
+Vin
+Out
Load
Maximum Capacitive Load
The MIW1300 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.
For optimum performance we recommend 470uF
maximum capacitive load for dual outputs and 4000uF
capacitive load for single outputs.
The maximum capacitance can be found in the data sheet.
5
Dual Output
DC / DC Com.
Converter
DC Power
Source
MINMAX
-
-Vin
-Out
Cout
Load
REV:0 2005/04
MIW1300 Series
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 90°C.
The derating curves are determined from measurements
obtained in an experimental apparatus.
Position of air velocity
probe and thermocouple
15mm / 0.6in
REV:0 2005/04
50mm / 2in
Air Flow
DUT
MINMAX
6
MIW1300 Series
Mechanical Dimensions
Connecting Pin Patterns
Top View ( 2.54 mm / 0.1 inch grids )
Single Output
10.2 [0.40]
Side
0.50 [0.020]
2.54 [0.100]
2.0 [0.08]
2.5 [0.10]
4.5 [0.18]
31.8 [1.25]
10 11 12
Bottom
24 23 22
Tolerance
Pin
15 14 13
Millimeters
Inches
X.X{0.25
X.XX{0.01
X.XX{0.13
{0.05
X.XXX{0.005
{0.002
20.3 [0.80]
1 2 3
15.22 [0.600]
Dual Output
Pin Connections
Physical Characteristics
Pin
Single Output
Dual Output
1
+Vin
+Vin
2
NC
-Vout
3
NC
Common
10
-Vout
Common
11
+Vout
+Vout
12
-Vin
-Vin
13
-Vin
-Vin
14
+Vout
+Vout
15
-Vout
Common
22
NC
Common
23
NC
-Vout
24
+Vin
+Vin
31.8*20.3*10.2 mm
Case Size
:
Case Material
:
Non-Conductive Black Plastic
Weight
:
12.4g
Flammability
:
UL94V-0
1.25*0.80*0.40 inches
NC: No Connection
The MIW1300 converter is encapsulated in a low thermal resistance molding compound that has excellent resistance/electrical
characteristics over a wide temperature range or in high humidity environments.
The encapsulant and unit case are both rated to UL 94V-0 flammability specifications.
Leads are tin plated for improved solderability.
7
MINMAX
REV:0 2005/04
MIW1300 Series
REV:0 2005/04
MINMAX
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