2
〜
3 Watts 2 :1 Wide Input Range DC/DC Converters
Key Features
MIW1200 Series
High Efficiency up to 86%
2:1 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
MIW1200-Series power modules are low-profile
dc-dc converters that operate over input voltage ranges of
9-18VDC, 18-36VDC and 36-75VDC and provide precisely
regulated output voltages of 5V, 12V, 15V, {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 3W and a typical
full-load efficiency of 86%, continuous short circuit, 60mA output
ripple, EN55022 level A conducted noise compliance minimize
design-in time, cost and eliminate the need for external components.
$
Low Cost
1500
VDC
I/O Isolation
EMI
EN55022
2:1
Wide Range
Block Diagram
Single Output
Dual Output
+Vin
LC
Filter
+Vo
+Vin
LC
Filter
+Vo
Com.
-Vo
PFM
Isolation
Ref.Amp
PFM
Isolation
Ref.Amp
-Vo
-Vin
-Vin
MIW1200 Series
Model Selection Guide
Model
Number
Input
Voltage
Output
Voltage
Output Current
Input Current
Reflected
Ripple
Current
mA (Typ.)
Efficiency
VDC
MIW1221
MIW1222
MIW1223
MIW1224
MIW1225
MIW1226
MIW1227
MIW1231
MIW1232
MIW1233
MIW1234
MIW1235
MIW1236
MIW1237
MIW1241
MIW1242
MIW1243
MIW1244
MIW1245
MIW1246
MIW1247
VDC
3.3
5
12
15
{5
{12
{15
3.3
5
12
15
{5
{12
{15
3.3
5
12
15
{5
{12
{15
Max.
mA
600
500
250
200
{250
{125
{100
600
500
250
200
{250
{125
{100
600
500
250
200
{250
{125
{100
Min.
mA
60
50
25
20
{25
{12.5
{10
60
50
25
20
{25
{12.5
{10
60
50
25
20
{25
{12.5
{10
@Max. Load
mA (Typ.)
220
267
305
309
274
313
321
109
130
150
149
134
152
152
53
64
74
73
65
74
75
@No Load
mA (Typ.)
@Max. Load
% (Typ.)
75
78
82
81
76
80
78
76
80
83
84
78
82
82
78
82
85
86
80
84
83
12
( 9 ~ 18 )
30
15
24
( 18 ~ 36 )
8
15
48
( 36 ~ 75 )
4
15
Absolute Maximum Ratings
Parameter
12VDC Input Models
Input Surge Voltage
24VDC Input Models
( 1000 mS )
48VDC Input Models
Lead Temperature (1.5mm from case for 10 Sec.)
Internal Power Dissipation
Min.
-0.7
-0.7
-0.7
---
---
Max.
25
50
100
260
2,500
Unit
VDC
VDC
VDC
]
mW
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 50%
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.
Min.
Max.
-25
+71
-40
+90
-40
+125
---
95
Free-Air Convection
EN55022 Class A
Unit
]
]
]
%
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.
Exceeding these values can damage the module. These are not continuous
operating ratings.
Environmental Specifications
Parameter
Operating Temperature
Operating Temperature
Storage Temperature
Humidity
Cooling
Conducted EMI
Conditions
Ambient
Case
MIW1200 Series
Input Specifications
Parameter
Start Voltage
Model
12V Input Models
24V Input Models
48V Input Models
Under Voltage Shortdown
12V Input Models
24V Input Models
48V Input Models
Reverse Polarity Input Current
Short Circuit Input Power
Input Filter
All Models
Min.
4.5
8
16
---
---
---
---
---
Typ.
7
12
24
6.5
11
22
---
1000
Pi Filter
Max.
9
18
36
8.5
17
34
1
2000
A
mW
VDC
Unit
Output Specifications
Parameter
Output Voltage Accuracy
Output Voltage Balance
Line Regulation
Load Regulation
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Over Power Protection
Transient Recovery Time
Transient Response Deviation
Temperature Coefficient
Output Short Circuit
50% Load Step Change
Over Line,Load & Temp
Dual Output Balance Load
Vin=Min. to Max.
Io=10% to 100%
Conditions
Min.
---
---
---
---
---
---
---
120
---
---
---
Continuous
Typ.
{0.5
{0.5
{0.2
{0.2
25
---
---
---
300
{3
{0.01
Max.
{1.0
{2.0
{0.5
{0.5
50
75
15
---
500
{6
{0.02
Unit
%
%
%
%
mV P-P
mV P-P
mV rms.
%
uS
%
%/]
General Specifications
Parameter
Isolation Voltage
Isolation Test Voltage
Isolation Resistance
Isolation Capacitance
Switching Frequency
MTBF
MIL-HDBK-217F @ 25], Ground Benign
Conditions
60 Seconds
Flash Tested for 1 Second
500VDC
100KHz,1V
Min.
1500
1650
1000
---
200
1000
Typ.
---
---
---
350
300
---
Max.
---
---
---
500
450
---
Unit
VDC
VDC
M[
pF
KHz
K Hours
Capacitive Load
Models by Vout
Maximum Capacitive Load
Note: # For each output .
3.3V
4000
5V
4000
12V
4000
15V
4000
{5V
#
1000
{12V
#
1000
{15V
#
1000
Unit
uF
MIW1200 Series
Input Fuse Selection Guide
12V Input Models
700mA Slow - Blow Type
24V Input Models
350mA Slow - Blow Type
48V Input Models
135mA Slow - Blow Type
Input Voltage Transient Rating
150
140
130
120
110
100
Vin ( VDC )
90
80
70
60
50
40
30
20
10
0
10uS
100uS
1mS
10mS
100mS
12VDC Input Models
24VDC Input Models
48VDC Input Models
MIW1200 Series
100
90
Efficiency (%)
80
70
60
50
Efficiency (%)
Low
Nom
Input Voltage (V)
High
100
90
80
70
60
50
Low
Nom
Input Voltage (V)
High
Efficiency vs Input Voltage ( Single Output )
Efficiency vs Input Voltage ( Dual Output )
90
80
Efficiency (%)
Efficiency (%)
10
20
40
60
80
70
60
50
40
30
20
100
90
80
70
60
50
40
30
20
10
20
40
60
80
100
Load Current (%)
Load Current (%)
Efficiency vs Output Load ( Single Output )
Efficiency vs Output Load ( Dual Output )
100
80
Output Power (%)
100LFM
Natural
convection
400LFM
200LFM
60
40
20
0
-40
〜
50
60
70
80
]
90
100
110
Ambient Temperature
Derating Curve
