TOTAL POWER INT'L
MIW4000 Series
5〜6 Watts 4 : 1 Wide Input Range DC/DC Converters
Single and Dual Outputs
Key Features
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High Efficiency up to 86%
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y
y
y
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High Power Density
4:1 Input Range
I/O Isolation 1500VDC
Industry Standard Pinout
SMT Technology
Short Circuit Protection
EMI Complies With EN55022 Class A
MTBF > 1,000,000 Hours
Minmax's MIW4000-Series power modules are low-profile
dc-dc converters that operate over input voltage ranges of 9-36VDC
and 18-75VDC and provide precisely regulated output voltages of
3.3V, 5V, 12V, 15V, {5V, {12V and {15V.
High
Power
Density
The -25] to +71] operating temperature range makes it ideal
for 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.
More Power
1500
VDC
The modules have a maximum power rating of 6W and a typical
full-load efficiency of 86%, continuous short circuit, EN55022 level A
conducted noise compliance minimize design-in time, cost and
eliminate the need for external components.
I/O Isolation
EMI
4:1
EN55022
Wide Range
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
MIW4000 Series
Model Selection Guide
Model
Number
Input
Voltage
Output
Voltage
VDC
VDC
Max.
mA
Min.
mA
@Max. Load
mA (Typ.)
3.3
1200
120
212
78
MIW4022
5
1000
100
257
81
MIW4023
12
500
50
291
15
400
40
294
{5
{500
{50
257
81
MIW4026
{12
{250
{25
291
86
MIW4027
{15
{200
{20
294
85
MIW4031
3.3
1200
120
106
78
MIW4032
5
1000
100
129
81
MIW4033
12
500
50
145
86
15
400
40
147
MIW4021
24
( 9 ~ 36 )
MIW4024
MIW4025
MIW4034
MIW4035
48
( 18 ~ 75 )
Output Current
Input Current
@No Load
mA (Typ.)
Reflected
Ripple
Current
mA (Typ.)
Efficiency
@Max. Load
% (Typ.)
86
20
10
10
10
85
85
{5
{500
{50
123
81
MIW4036
{12
{250
{25
145
86
MIW4037
{15
{200
{20
147
85
Note :
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 these values can damage the module. 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 devices; however they may not
meet all listed specifications.
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
-25
+71
]
Operating Temperature
Case
-40
+90
]
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
MIW4000 Series
Input Specifications
Parameter
Start Voltage
Under Voltage Shortdown
Model
Min.
Typ.
Max.
24V Input Models
7
8
9
48V Input Models
14
16
18
24V Input Models
---
---
8.5
48V Input Models
---
---
16
---
---
0.5
A
---
---
2500
mW
Unit
Reverse Polarity Input Current
All Models
Short Circuit Input Power
Input Filter
Unit
VDC
Pi Filter
Output Specifications
Parameter
Conditions
Min.
Typ.
Max.
---
{0.5
{1.0
%
Dual Output Balance Load
---
{0.5
{2.0
%
Line Regulation
Vin=Min. to Max.
---
{0.1
{0.3
%
Load Regulation
Io=10% to 100%
---
{0.3
{1.0
%
---
50
75
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
---
250
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 Test Voltage
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
---
340
---
KHz
1000
---
---
K Hours
Switching Frequency
MTBF
MIL-HDBK-217F @ 25], Ground Benign
Capacitive Load
Models by Vout
3.3V
5V
12V
15V
{5V #
{12V #
{15V #
Unit
Maximum Capacitive Load
3000
3000
3000
3000
680
680
680
uF
Note: # For each output .
MIW4000 Series
Input Fuse Selection Guide
24V Input Models
48V Input Models
1500mA 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
10mS
100mS
100
100
90
90
Efficiency (%)
Efficiency (%)
MIW4000 Series
80
70
60
50
80
70
60
Low
Nom
50
High
Low
Nom
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
50
40
30
30
10
20
40
60
80
100
Load Current (%)
60
100LFM
400LFM
Natural
convection
200LFM
40
20
0
〜
-40
50
60
70
80
Ambient Temperature
Derating Curve
10
20
40
60
80
Efficiency vs Output Load ( Dual Output )
100
80
20
Load Current (%)
Efficiency vs Output Load ( Single Output )
Output Power (%)
60
40
20
High
Input Voltage (V)
90
]
100
110
100
MIW4000 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.
To Oscilloscope
+
+
Battery
+Vin
Lin
DC / DC
Converter
Current
Probe
Cin
+Out
-Vin
Load
Input Source Impedance
-Out
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.
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.
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.
+
+Vin
+Out
Single Output
DC / DC
Converter
-Vin
Copper Strip
Cout
Resistive
Scope
Load
DC Power
Source
+Vin
+
+Out
DC / DC
Converter
Load
Cin
-
-Vin
-Out
-Out
Output Ripple Reduction
+Vin
+Out
Dual Output
DC / DC
Converter
Com.
-Vin
-Out
Copper Strip
Cout
Scope
Cout
Scope
Resistive
Load
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.
+
Design & Feature Considerations
Maximum Capacitive Load
The MIW4000 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 680uF
maximum capacitive load for dual outputs and 3000uF
capacitive load for single outputs.
The maximum capacitance can be found in the data.
+Vin
+Out
Single Output
DC / DC
Converter
DC Power
Source
Cout
-
-Vin
-Out
+
+Vin
+Out
Dual Output
DC / DC Com.
Converter
DC Power
Source
-
-Vin
-Out
Load
Cout
Load
MIW4000 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
MIW4000 Series
Mechanical Data
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{0.25
.XX{0.01
.XX{0.25
{0.05
.XXX{0.01
{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*0.8*0.4 inches
NC: No Connection
Units are encapsulated in a low thermal resistance molding compound which has excellent chemical resistance and electrical
properties in high humidity environment and over a wide operating temperature range.
The encapsulant and outer shell of the unit have UL94V-0 ratings. The leads are golden plated for better soldering.