MIW1100 Series
3W, Wide Input Range DIP, Single & Dual Output DC/DC Converters
Key Features
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Efficiency up to 81%
1500VDC Isolation
MTBF > 1,000,000 Hours
UL1950 Safety Approval
Low Cost
Complies with EN55022 Class A
Temperature Performance -40] to +71]
Industry Standard Pinout
UL 94V-0 Package Material
Internal SMD Construction
Minmax's MIW1100-Series power modules are low-profile dc-dc
converters that operate over input voltage ranges of 4.5-9VDC,
$
9-18VDC, 18-36VDC and 36-75VDC which provide precisely regulated
output voltages of 5V, 12V, 15V, {12V and {15VDC.
The -40] to +71] operating temperature range makes it ideal for
Low Cost
data communication equipments, mobile battery driven 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 81%, continuous short circuit, 45mA output ripple,
built-in filtering for both input and output minimize the need for external
I/O Isolation
filtering.
EMI
2:1
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
MIW1100 Series
Model Selection Guide
Model
Number
MIW1111
MIW1112
MIW1113
MIW1114
MIW1115
MIW1121
MIW1122
MIW1123
MIW1124
MIW1125
MIW1131
MIW1132
MIW1133
MIW1134
MIW1135
MIW1141
MIW1142
MIW1143
MIW1144
MIW1145
Input
Voltage
Output
Voltage
VDC
VDC
5
12
15
{12
{15
5
12
15
{12
{15
5
12
15
{12
{15
5
12
15
{12
{15
5
( 4.5 ~ 9 )
12
( 9 ~ 18 )
24
( 18 ~ 36 )
48
( 36 ~ 75 )
Output Current
Max.
mA
600
250
200
{125
{100
600
250
200
{125
{100
600
250
200
{125
{100
600
250
200
{125
{100
Input Current
Min.
mA
60
25
20
{12.5
{10
60
25
20
{12.5
{10
60
25
20
{12.5
{10
60
25
20
{12.5
{10
Parameter
5VDC Input Models
12VDC
Input Models
Input Surge Voltage
( 1000 mS )
24VDC Input Models
48VDC Input Models
Lead Temperature (1.5mm from case for 10 Sec.)
Internal Power Dissipation
Min.
-0.7
-0.7
-0.7
-0.7
-----
Max.
11
25
50
100
260
2,500
Unit
VDC
VDC
VDC
VDC
]
mW
Exceeding the absolute maximum ratings of the unit could cause damage.
These are not continuous operating ratings.
mA (Typ.)
40
100
20
30
5
15
3
10
@Max. Load
% (Typ.)
70
74
74
74
74
76
80
80
80
80
77
81
81
81
81
77
81
81
81
81
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.
5. Operation under no-load conditions will not
damage these modules; however, they may not
meet all specifications listed.
Environmental Specifications
REV:0 2005/04
@No Load
mA (Typ.)
Efficiency
Notes :
Absolute Maximum Ratings
Parameter
Operating Temperature
Operating Temperature
Storage Temperature
Humidity
Cooling
Conducted EMI
@Max. Load
mA (Typ.)
857
811
811
811
811
329
313
313
313
313
162
154
154
154
154
81
77
77
77
77
Reflected
Ripple
Current
Conditions
Ambient
Case
Min.
Max.
-40
+71
-40
+90
-40
+125
--95
Free-Air Convection
EN55022 Class A
Unit
]
]
]
%
MINMAX
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.
2
MIW1100 Series
Input Specifications
Parameter
Start Voltage
Under Voltage Shutdown
Model
Min.
Typ.
Max.
5V Input Models
3.5
4
4.5
12V Input Models
4.5
7
9
24V Input Models
8
12
18
48V Input Models
16
24
36
5V Input Models
---
3.5
4
12V Input Models
---
6.5
8.5
24V Input Models
---
11
17
48V Input Models
---
22
34
---
---
1
A
---
1000
1500
mW
Reverse Polarity Input Current
Short Circuit Input Power
Unit
All Models
Input Filter
VDC
Pi Filter
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
---
---
100
mV P-P
Ripple & Noise (20MHz)
---
---
15
mV rms
Over Power Protection
120
---
---
%
Transient Recovery Time
---
300
500
uS
Output Voltage Balance
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Over Line, Load & Temp.
25% Load Step Change
Transient Response Deviation
Temperature Coefficient
Output Short Circuit
---
{3
{5
%
---
{0.01
{0.02
%/]
Continuous
General Specifications
Parameter
Conditions
Min.
Typ.
Max.
Unit
Isolation Voltage Rated
60 Seconds
1500
---
---
VDC
Flash Tested for 1 Second
1650
---
---
VDC
Isolation Resistance
Isolation Voltage Test
500VDC
1000
---
---
M[
Isolation Capacitance
100KHz,1V
---
---
150
pF
---
300
---
KHz
1000
---
---
K Hours
Switching Frequency
MTBF
MIL-HDBK-217F @ 25], Ground Benign
Capacitive Load
Models by Vout
5V
12V
15V
{12V #
{15V #
Unit
Maximum Capacitive Load
2000
2000
2000
1000
1000
uF
# For each output
3
MINMAX
REV:0 2005/04
MIW1100 Series
Input Fuse Selection Guide
5V Input Models
1500mA Slow - Blow Type
12V Input Models
700mA Slow - Blow Type
24V Input Models
48V Input Models
350mA Slow - Blow Type
135mA Slow - Blow Type
Input Voltage Transient Rating
150
140
130
120
48VDC Input Models
110
Vin ( VDC )
100
90
80
70
24VDC Input Models
60
50
40
12VDC Input Models
30
20
5VDC Input Models
10
0
10uS
REV:0 2005/04
100uS
1mS
MINMAX
10mS
100mS
4
90
100
80
90
Efficiency (%)
Efficiency (%)
MIW1100 Series
70
80
70
60
60
50
Low
Nom
Low
High
Nom
Input Voltage (V)
Input Voltage (V)
Efficiency vs Input Voltage ( Dual Output )
90
90
80
80
70
70
Efficiency (%)
Efficiency (%)
Efficiency vs Input Voltage ( Single Output )
60
50
60
50
40
40
30
30
20
10
20
40
High
60
80
100
20
Load Current (%)
10
20
40
60
80
100
Load Current (%)
Efficiency vs Output Load ( Single Output )
Efficiency vs Output Load ( Dual Output )
100
100LFM
400LFM
Natural
convection
200LFM
Output Power (%)
80
60
40
20
0
〜
-40
50
60
70
80
Ambient Temperature
90
100
110
]
Derating Curve
5
MINMAX
REV:0 2005/04
MIW1100 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
Load
-Out
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
Single Output
DC / DC
Converter
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 8.2uF for the 5V input devices, a 3.3uF for
the 12V input devices and a 1.5uF for the 24V and 48V
devices.
+
DC Power
Source
Copper Strip
Cout
Input Source Impedance
Scope
+Vin
+
DC / DC
Converter
Load
Cin
-
Resistive
Load
+Out
-Vin
-Out
-Out
Output Ripple Reduction
+Vin
+Out
Dual Output
DC / DC
Converter
Com.
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.
-Vin
-Out
-Vin
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 MIW1100 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 1000uF
maximum capacitive load for dual outputs and 2000uF
capacitive load for single outputs.
The maximum capacitance can be found in the data sheet.
REV:0 2005/04
Dual Output
DC / DC Com.
Converter
DC Power
Source
MINMAX
-
-Vin
-Out
Cout
Load
6
MIW1100 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
7
50mm / 2in
Air Flow
DUT
MINMAX
REV:0 2005/04
MIW1100 Series
Mechanical Dimensions
Connecting Pin Patterns
Top View ( 2.54 mm / 0.1 inch grids )
Single Output
10.2 [0.40]
2.54 [0.100]
2.3 [0.09]
1 2 3
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
Dual Output
20.3 [0.80]
0.50 [0.020]
2.5 [0.10]
Side
15.22 [0.600]
4.5 [0.18]
31.8 [1.25]
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 MIW1100 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.
REV:0 2005/04
MINMAX
8