TOTAL POWER INT'L
MIW4100 Series
5-6W, Ultra-Wide Input Range DIP, Single & Dual Output DC/DC Converters
Key Features
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Efficiency up to 83%
1500VDC Isolation
MTBF > 1,000,000 Hours
4:1 Wide Input Range
Low Cost
Complies with EN55022 Class A
Temperature Performance -40] to +71]
Industry Standard Pinout
UL 94V-0 Package Material
Internal SMD Construction
MIW4100-Series power modules operate over input
voltage ranges of 9-36VDC and 18-75VDC which provide precisely
$
regulated output voltages of 3.3V, 5V, 12V, 15V, {5V, {12V and
{15VDC.
The -40] to +71] operating temperature range makes it ideal
Low Cost
for data communication equipments, mobile battery driven
High
Power
Density
More Power
equipments, distributed power systems, telecommunication
equipments, mixed analog/digital subsystems, process/machine
control equipments, computer peripheral systems and industrial robot
1500
VDC
systems.
The modules have a maximum power rating of 6W and a typical
EMI
4:1
EN55022
Wide Range
full-load efficiency of 83%, continuous short circuit, EN55022 Class
A conducted noise compliance minimize design-in time, cost and
I/O Isolation
eliminate the need for external filtering.
Block Diagram
Single Output
+Vin
Dual Output
+Vo
LC
Filter
+Vin
+Vo
LC
Filter
Com.
-Vo
-Vin
PFM
Isolation
Ref.Amp
-Vo
-Vin
PFM
Isolation
Ref.Amp
MIW4100 Series
Model Selection Guide
Model
Number
Input
Voltage
Output
Voltage
VDC
VDC
3.3
Max.
mA
1200
Min.
mA
120
@Max. Load
mA (Typ.)
220
MIW4122
5
1000
100
267
MIW4123
12
500
50
301
15
400
40
305
{5
{500
{50
267
78
MIW4126
{12
{250
{25
301
83
MIW4127
{15
{200
{20
305
82
MIW4131
3.3
1200
120
110
75
MIW4132
5
1000
100
134
78
MIW4133
12
500
50
151
15
400
40
152
MIW4121
24
( 9 ~ 36 )
MIW4124
MIW4125
MIW4134
MIW4135
48
( 18 ~ 75 )
Output Current
Input Current
@No Load
mA (Typ.)
Reflected
Ripple
Current
mA (Typ.)
Efficiency
@Max. Load
% (Typ.)
75
78
83
20
20
82
83
10
15
82
{5
{500
{50
134
78
MIW4136
{12
{250
{25
151
83
MIW4137
{15
{200
{20
152
82
Notes :
Absolute Maximum Ratings
Parameter
Input Surge Voltage
( 1000 mS )
Min.
Max.
Unit
24VDC Input Models
-0.7
50
VDC
VDC
48VDC Input Models
-0.7
100
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.
5. Operation under no-load conditions will not
damage these modules; however, they may not
meet all specifications listed.
Environmental Specifications
Parameter
Conditions
Min.
Max.
Unit
6. All DC/DC converters should be externally fused at
the front end for protection.
Operating Temperature
Ambient
-40
+71
]
Operating Temperature
Case
-40
+95
]
7. Other input and output voltage may be available,
please contact factory.
Storage Temperature
-40
+125
]
Humidity
---
95
%
8. Specifications subject to change without notice.
Cooling
Conducted EMI
Free-Air Convection
EN55022 Class A
MIW4100 Series
Input Specifications
Parameter
Start Voltage
Model
Min.
Typ.
Max.
24V Input Models
7
8
9
48V Input Models
14
16
18
Under Voltage Shutdown
24V Input Models
---
---
8.5
48V Input Models
---
---
16
---
---
1
A
---
---
3000
mW
Reverse Polarity Input Current
Short Circuit Input Power
All Models
Input Filter
Unit
VDC
Pi Filter
Output Specifications
Parameter
Conditions
Min.
Typ.
Max.
Unit
---
{0.5
{2.0
%
Dual Output, Balanced Loads
---
{0.5
{2.0
%
Line Regulation
Vin=Min. to Max.
---
{0.1
{0.5
%
Load Regulation
Io=10% to 100%
---
{0.5
{1.0
%
---
50
80
mV P-P
Over Line, Load & Temp.
---
---
100
mV P-P
Ripple & Noise (20MHz)
---
---
15
mV rms
Over Power Protection
110
250
350
%
Transient Recovery Time
---
300
500
uS
Output Voltage Accuracy
Output Voltage Balance
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
25% Load Step Change
Transient Response Deviation
Temperature Coefficient
Output Short Circuit
---
{3
---
%
---
{0.01
{0.02
%/]
Continuous
General Specifications
Parameter
Isolation Voltage
Isolation Voltage Test
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
---
350
550
pF
---
450
---
KHz
1000
---
---
K Hours
Switching Frequency
MTBF
MIL-HDBK-217F @ 25], Ground Benign
Capacitive Load
Models by Vout
Maximum Capacitive Load
# For each output
3.3V
5V
12V
15V
{5V #
{12V #
{15V #
Unit
470
470
100
100
100
100
100
uF
MIW4100 Series
Input Fuse Selection Guide
24V Input Models
48V Input Models
1000mA Slow-Blow type
750mA 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
30
20
10
0
10uS
100uS
1mS
100
100LFM
400LFM
Natural
convection
200LFM
Output Power (%)
80
60
40
20
0
〜
-40
50
60
70
90
80
Ambient Temperature
Derating Curve
]
100
110
10mS
100mS
MIW4100 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
DC / DC
Converter
Current
Probe
Cin
+Out
-Vin
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
-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.
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 4.7uF for the 24V input devices and a
2.2uF for the 48V devices.
+
DC Power
Source
Copper Strip
Cout
Input Source Impedance
Scope
Resistive
Load
+Vin
+
+Out
DC / DC
Converter
Load
Cin
-
-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
Copper Strip
Cout
Scope
Cout
Scope
Resistive
Load
+
+Vin
Single Output
DC / DC
Converter
DC Power
Source
Design & Feature Considerations
+Out
Cout
-
-Vin
-Out
+
+Vin
+Out
Load
Maximum Capacitive Load
The MIW4100 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.
Dual Output
DC / DC Com.
Converter
DC Power
Source
-
-Vin
-Out
Cout
Load
MIW4100 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
50mm / 2in
Air Flow
DUT
MIW4100 Series
Mechanical Dimensions
Connecting Pin Patterns
Top View ( 2.54 mm / 0.1 inch grids )
Single Output
10.2 [0.40]
Side
2.5 [0.10]
0.50 [0.020]
2 3
9
11
16
14
Bottom
23 22
Tolerance
Pin
Millimeters
Inches
X.X{0.25
X.XX{0.01
X.XX{0.13
{0.05
X.XXX{0.005
{0.002
Pin Connections
Dual Output
20.3 [0.80]
4.5 [0.18]
2.54 [0.100]
15.22 [0.600]
4.1 [0.16]
31.8 [1.25]
Physical Characteristics
Pin
Single Output
Dual Output
2
-Vin
-Vin
3
-Vin
-Vin
9
No Pin
Common
11
NC
-Vout
14
+Vout
+Vout
16
-Vout
Common
22
+Vin
+Vin
23
+Vin
+Vin
31.8*20.3*10.2 mm
Case Size
:
Case Material
: Metal With Non-Conductive Baseplate
Weight
: 17.3g
Flammability
: UL94V-0
1.25*0.80*0.40 inches
NC: No Connection
The MIW4100 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.