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Электронный компонент: MIW4025

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Dual Output
+Vo
PFM
Isolation
Ref.Amp
LC
Filter
+Vin
-Vin
Com.
-Vo
Single Output
PFM
Isolation
Ref.Amp
LC
Filter
+Vin
-Vin
-Vo
+Vo
Block Diagram
Wide Range
4:1
EN55022
EMI
I/O Isolation
1500
VDC
More Power
High
Power
Density
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.
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.
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.
MTBF > 1,000,000 Hours
EMI Complies With EN55022 Class A
Short Circuit Protection
SMT Technology
Industry Standard Pinout
I/O Isolation 1500VDC
4:1 Input Range
High Power Density
High Efficiency up to 86%
Key Features
Single and Dual Outputs
56 Watts 4 :
1
Wide Input Range
DC/DC Converters
MIW4000
Series
TOTAL POWER INT'L
85
147
{20
{200
{15
MIW4037
86
145
{25
{250
{12
MIW4036
81
123
{50
{500
{5
MIW4035
85
147
40
400
15
MIW4034
86
145
50
500
12
MIW4033
81
129
100
1000
5
MIW4032
78
10
10
106
120
1200
3.3
48
( 18 ~ 75 )
MIW4031
85
294
{20
{200
{15
MIW4027
86
291
{25
{250
{12
MIW4026
81
257
{50
{500
{5
MIW4025
85
294
40
400
15
MIW4024
86
291
50
500
12
MIW4023
81
257
100
1000
5
MIW4022
78
10
20
212
120
1200
3.3
24
( 9 ~ 36 )
MIW4021
% (Typ.)
mA (Typ.)
mA (Typ.)
mA (Typ.)
mA
mA
VDC
VDC
@Max. Load
@No Load
@Max. Load
Min.
Max.
Efficiency
Reflected
Ripple
Current
Input Current
Output Current
Output
Voltage
Input
Voltage
Model
Number
Model Selection Guide
EN55022 Class A
Conducted EMI
Free-Air Convection
Cooling
%
95
---
Humidity
]
+125
-40
Storage Temperature
]
+90
-40
Case
Operating Temperature
]
+71
-25
Ambient
Operating Temperature
Unit
Max.
Min.
Conditions
Parameter
Environmental Specifications
Exceeding these values can damage the module. These are not continuous
operating ratings.
mW
2,500
---
Internal Power Dissipation
]
260
---
Lead Temperature (1.5mm from case for 10 Sec.)
VDC
100
-0.7
48VDC Input Models
VDC
50
-0.7
24VDC Input Models
Input Surge Voltage
( 1000 mS )
Unit
Max.
Min.
Parameter
Note :
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.
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.
Absolute Maximum Ratings
MIW4000 Series
Pi Filter
Input Filter
mW
2500
---
---
Short Circuit Input Power
A
0.5
---
---
All Models
Reverse Polarity Input Current
16
---
---
48V Input Models
8.5
---
---
24V Input Models
Under Voltage Shortdown
18
16
14
48V Input Models
VDC
9
8
7
24V Input Models
Start Voltage
Unit
Max.
Typ.
Min.
Model
Parameter
Input Specifications
K Hours
---
---
1000
MIL-HDBK-217F @ 25], Ground Benign
MTBF
KHz
---
340
---
Switching Frequency
pF
550
350
---
100KHz,1V
Isolation Capacitance
M[
---
---
1000
500VDC
Isolation Resistance
VDC
---
---
1650
Flash Tested for 1 Second
Isolation Test Voltage
VDC
---
---
1500
60 Seconds
Isolation Voltage
Unit
Max.
Typ.
Min.
Conditions
Parameter
General Specifications
Continuous
Output Short Circuit
%/]
{0.02
{0.01
---
Temperature Coefficient
%
---
{3
---
Transient Response Deviation
uS
500
250
---
25% Load Step Change
Transient Recovery Time
%
350
250
110
Over Power Protection
mV rms.
15
---
---
Ripple & Noise (20MHz)
mV P-P
100
---
---
Over Line,Load & Temp
Ripple & Noise (20MHz)
mV P-P
75
50
---
Ripple & Noise (20MHz)
%
{1.0
{0.3
---
Io=10% to 100%
Load Regulation
%
{0.3
{0.1
---
Vin=Min. to Max.
Line Regulation
%
{2.0
{0.5
---
Dual Output Balance Load
Output Voltage Balance
%
{1.0
{0.5
---
Output Voltage Accuracy
Unit
Max.
Typ.
Min.
Conditions
Parameter
Output Specifications
Note: # For each output .
uF
680
680
680
3000
3000
3000
3000
Maximum Capacitive Load
Unit
{15V #
{12V #
{5V #
15V
12V
5V
3.3V
Models by Vout
Capacitive Load
MIW4000 Series
750mA Slow-Blow type
1500mA Slow-Blow type
48V Input Models
24V Input Models
Input Fuse Selection Guide
Vin ( VDC )
10uS
150
140
130
120
110
100
90
80
70
60
100uS
1mS
10mS
100mS
50
40
30
20
10
0
48VDC Input Models
24VDC Input Models
Input Voltage Transient Rating
MIW4000 Series
Derating Curve
]
Ambient Temperature
Output Power (%)
0
20
40
60
80
100
-40
50
60
80
100
110
90
70
400LFM
200LFM
100LFM
Natural
convection
Efficiency vs Output Load ( Dual Output )
Efficiency vs Output Load ( Single Output )
20
30
40
50
60
70
80
90
Load Current (%)
Efficiency (%)
100
60
40
20
10
80
20
30
40
50
60
70
80
90
Load Current (%)
Efficiency (%)
100
60
40
20
10
80
Efficiency vs Input Voltage ( Dual Output )
Efficiency vs Input Voltage ( Single Output )
50
60
70
80
90
100
Efficiency (%)
Input Voltage (V)
Nom
Low
High
Input Voltage (V)
Nom
Low
High
50
60
70
80
90
100
Efficiency (%)
MIW4000 Series
Test Configurations
Input Reflected-Ripple Current Test Setup
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.
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 3000
u
F
capacitive load
for single outputs.
The maximum capacitance can be found in the data.
Overcurrent Protection
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 Source Impedance
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.
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 3.3uF
capacitors at the output.
MIW4000 Series
+Out
-Out
+Vin
-Vin
DC / DC
Converter
Load
Battery
+
Lin
+
Cin
To Oscilloscope
Current
Probe
+Out
-Out
+Vin
-Vin
Dual Output
DC / DC
Converter
Resistive
Load
Scope
Copper Strip
Cout
Com.
Scope
Cout
+Out
-Out
+Vin
-Vin
Single Output
DC / DC
Converter
Resistive
Load
Scope
Copper Strip
Cout
+
+Out
-Out
+Vin
-Vin
DC / DC
Converter
Load
DC Power
Source
+
-
Cin
+Out
-Out
+Vin
-Vin
Load
DC Power
Source
+
-
Cout
Com.
Dual Output
DC / DC
Converter
+Out
-Out
+Vin
-Vin
Load
DC Power
Source
+
-
Cout
Single Output
DC / DC
Converter
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 90C.
The derating curves are determined from measurements
obtained in an experimental apparatus.
MIW4000 Series
DUT
Position of air velocity
probe and thermocouple
50mm / 2in
Air Flow
15mm / 0.6in
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.
NC: No Connection
+Vin
+Vin
23
UL94V-0
:
Flammability
+Vin
+Vin
22
Common
-Vout
16
17.3g
:
Weight
+Vout
+Vout
14
-Vout
NC
11
Metal With Non-Conductive Baseplate
:
Case Material
Common
No Pin
9
-Vin
-Vin
3
1.25*0.8*0.4 inches
-Vin
-Vin
2
31.8*20.3*10.2 mm
:
Case Size
Dual Output
Single Output
Pin
Physical Characteristics
Pin Connections
{0.002
{0.05
Pin
.XXX{0.01
.XX{0.25
.XX{0.01
.X{0.25
Inches
Millimeters
Tolerance
Dual Output
Single Output
31.8 [1.25]
10.2 [0.40
]
20.3 [0.80
]
Bottom
4.1 [0.16
]
4.5 [0.18]
2
Side
3
9
11
16
14
23 22
0.50 [0.020]
2.54 [0.100]
15.22 [0
.600]
2.5 [0.10
]
Connecting Pin Patterns
Top View ( 2.54 mm / 0.1 inch grids )
Mechanical Data
MIW4000 Series