MA400RWI
Series
Wide 2:1 Input, 4W,
High Isolation, DIP
DC/DC Converters
Electrical Specifications
Key Features:
•
4W Output Power
•
2:1 Input Voltage Range
•
3,500 VDC Isolation
•
30 Standard Models
•
High Efficiency
•
Compact DIP Case
•
-40°C to +85°C Operation
•
Metal Case Available
•
Low Cost
Specifications typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice.
Input
Parameter
Input Voltage Range
Input Reflected Ripple Current
Input Filter
Conditions
12 VDC Input
24 VDC Input
48 VDC Input
Min.
9.0
18.0
36.0
Typ.
12.0
24.0
48.0
35
Max.
18.0
36.0
72.0
Units
VDC
mA P - P
(Pi)
Filter
Conditions
V
IN
= Min to Max
I
OUT
= 25% to 100%
See Note 1
See Note 2
Min.
Typ.
±1.0
±0.5
±0.5
±0.5
60
±0.02
Continuous (Autorecovery)
Conditions
3 Seconds
500 VDC
100 kHz/0.1V
100
Conditions
Ambient
Case
-40
Free Air Convection
RH, Non-condensing
95
%
Min.
-40
Typ.
+25
Min.
3,500
1,000
60
400
Max.
+85
+100
+125
Typ.
Max.
Units
VDC
M
pF
kHz
Units
°C
°C
°C
Max.
Units
%
%
%
%
mV P - P
%/°C
Output
Parameter
Output Voltage Accuracy
Line Regulation
Load Regulation
Load Regulation
Ripple & Noise (20 MHz)
Alternate
Pin-Out
Available
Temperature Coefficient
Output Short Circuit
General
Parameter
Isolation Voltage, See Note 3
1.5 kV Isolation
Models
Available
Isolation Resistance
Isolation Capacitance
Switching Frequency
Environmental
Parameter
Operating Temperature Range
Operating Temperature Range
Storage Temperature Range
Cooling
Humidity
Physical
Case Size
Case Material, Plastic
Weight, Plastic Case
1.25 x 0.80 x 0.40 Inches (31.75 x 20.32 x 10.16 mm)
Non-Conductive Black Plastic (UL94-V0)
0.44 Oz (12.5g)
Nickel-Coated Copper With Non-Conductive Base (UL94-V0)
0.53 Oz (15g)
Conditions
MIL HDBK 217F, 25°C, Gnd Benign
Conditions
12 VDC Input
Input Voltage Surge (1 Sec)
Lead Temperature
24 VDC Input
48 VDC Input
1.5 mm From Case for 10 Sec
Min.
1.0
Min.
-0.7
-0.7
-0.7
Typ.
Max.
24.0
40.0
80.0
260
°C
VDC
Typ.
Max.
Units
MHours
Units
MicroPower Direct
292 Page Street
Suite D
Stoughton, MA 02072
USA
T:
(781) 344-8226
F:
(781) 344-8481
E:
sales@micropowerdirect.com
W:
www.micropowerdirect.com
Case Material, Metal
Weight, Metal Case
Reliability Specifications
Parameter
MTBF
Absolute Maximum Ratings
Parameter
Caution: Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings.
www.micropowerdirect.com
Model Selection Guide
Input
Model
Number
MA412S-05RWI-xx
MA412S-09RWI-xx
MA412S-12RWI-xx
MA412S-15RWI-xx
MA412S-24RWI-xx
MA412D-05RWI-xx
MA412D-09RWI-xx
MA412D-12RWI-xx
MA412D-15RWI-xx
MA412D-24RWI-xx
MA424S-05RWI-xx
MA424S-09RWI-xx
MA424S-12RWI-xx
MA424S-15RWI-xx
MA424S-24RWI-xx
MA424D-05RWI-xx
MA424D-09RWI-xx
MA424D-12RWI-xx
MA424D-15RWI-xx
MA424D-24RWI-xx
MA448S-05RWI-xx
MA448S-09RWI-xx
MA448S-12RWI-xx
MA448S-15RWI-xx
MA448S-24RWI-xx
MA448D-05RWI-xx
MA448D-09RWI-xx
MA448D-12RWI-xx
MA448D-15RWI-xx
MA448D-24RWI-xx
Voltage
(VDC)
Nominal
Range
12
12
12
12
12
12
12
12
12
12
24
24
24
24
24
24
24
24
24
24
48
48
48
48
48
48
48
48
48
48
9.0 - 18.0
9.0 - 18.0
9.0 - 18.0
9.0 - 18.0
9.0 - 18.0
9.0 - 18.0
9.0 - 18.0
9.0 - 18.0
9.0 - 18.0
9.0 - 18.0
18.0 - 36.0
18.0 - 36.0
18.0 - 36.0
18.0 - 36.0
18.0 - 36.0
18.0 - 36.0
18.0 - 36.0
18.0 - 36.0
18.0 - 36.0
18.0 - 36.0
36.0 - 72.0
36.0 - 72.0
36.0 - 72.0
36.0 - 72.0
36.0 - 72.0
36.0 - 72.0
36.0 - 72.0
36.0 - 72.0
36.0 - 72.0
36.0 - 72.0
www.micropowerdirect.com
Output
Current
(mA, Min)
Current
(mA)
Voltage Current
(mA, Max)
Full-Load No-Load
(VDC)
463
427
427
433
439
433
433
427
427
433
216
214
211
208
216
225
225
219
216
219
108
108
107
107
111
114
108
108
107
110
20
20
20
20
20
20
20
20
20
20
12
12
12
12
12
12
12
12
12
12
8
8
8
8
8
8
8
8
8
8
5.0
9.0
12.0
15.0
24.0
±5.0
±9.0
±12.0
±15.0
±24.0
5.0
9.0
12.0
15.0
24.0
±5.0
±9.0
±12.0
±15.0
±24.0
5.0
9.0
12.0
15.0
24.0
±5.0
±9.0
±12.0
±15.0
±24.0
800.0
444.0
333.0
267.0
167.0
±400.0
±222.0
±167.0
±133.0
±83.0
800.0
444.0
333.0
267.0
167.0
±400.0
±222.0
±167.0
±133.0
±83.0
800.0
444.0
333.0
267.0
167.0
±400.0
±222.0
±167.0
±133.0
±83.0
Efficiency
(%, Typ)
Fuse
Reflected Capacitive
Ripple
Rating
Load
Current
Slow-Blow
(µF, Max)
(mA Typ)
(mA)
200.0
111.0
83.3
66.8
42.0
±100.0
±56.0
±42.0
±33.0
±21.0
200.0
111.0
83.3
66.8
42.0
±100.0
±56.0
±42.0
±33.0
±21.0
200.0
111.0
83.3
66.8
42.0
±100.0
±56.0
±42.0
±33.0
±21.0
72
78
78
77
76
77
77
78
78
77
77
78
79
80
77
77
77
78
79
76
77
77
78
77
75
73
77
77
78
76
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
2,200
470
470
470
220
±1,000
±220
±220
±220
±100
2,200
470
470
470
220
±1,000
±220
±220
±220
±100
2,200
470
470
470
220
±1,000
±220
±220
±220
±100
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
500
500
500
500
500
500
500
500
500
500
250
250
250
250
250
250
250
250
250
250
Notes:
1. Cross regulation is measured with the output being tested at 100% load while the other output
is varied from 25% to 100% load.
2. See the typical connection circuit on page three for typical external filtering components. For help with a
specific model or layout issue, contact the factory.
3. Isolation voltage is specified for Input to output. On units with the optional metal case, the isolation voltage
for Input - Case and Output - Case is 1,000 VDC.
4. Operation at no-load will not damage the unit, but they may not meet all specifications. To meet all specifica-
tions, a minimum load of 25% should be maintained.
5. It is recommended that a fuse be used on the input of a power supply for protection. See the Model Selection
table above for the correct rating.
For the alternate pin-out (see page 4) , add suffix “P2” to model number
(i.e.
MA424S-05RWI-P2)
Model Number
Derating Curve
292 Page Street Ste D Stoughton, MA 02072
•
TEL: (781) 344-8226
•
FAX: (781) 344-8481
•
E-Mail: sales@micropowerdirect.com
www.micropowerdirect.com
Typical Connection
The diagram above illustrates a typical connection of the
MA400RWI
series for applications that require meeting conducted EMC standards.
The units do not require external components to operate as specified.
For applications requiring very low output noise levels, the output
filtering capacitors (C
3
is a low ESR electrolytic & C
4
is a ceramic) will
often be sufficient. Care must be taken in choosing output capacitors
not to exceed the capacitive load specification for the unit. For dual
output units, output capacitors should be connected from each output
to common. All external components should be mounted as close to
the unit as possible.
The recommended values for components are:
Component
24 V
IN
48 V
IN
12 V
IN
C
1
220
µF/50V
220
µF/100V
220
µF/100V
LCM
12
µH
12
µH
12
µH
---
470 pF/4kV MLCC 470 pF/4kV MLCC
C
2
100
µF
100
µF
100
µF
C
3
4.7 - 10
µF
4.7 - 10
µF
4.7 - 10
µF
C
4
Typical Board Layout
: With External Filter Components, Single Output
Typical Board Layout
: With External Filter Components, Dual Output
Input noise and surge suppression modules are available for a number
of
MPD
DC/DC power supplies. Contact the factory for more information.
MicroPower Direct
•
292 Page Street Ste D Stoughton, MA 02072
•
TEL: (781) 344-8226
•
FAX: (781) 344-8481
•
E-Mail: sales@micropowerdirect.com
Mechanical Dimensions
Standard Units
- Plastic Case
www.micropowerdirect.com
Standard Units
- Metal Case
Pin Connections
s
Pin
2
3
9
11
14
16
22
23
Single Output
-V
IN
-V
IN
No Pin
No Connection
+V
OUT
-V
OUT
+V
IN
+V
IN
Pin
2
3
9
11
14
16
22
23
Dual Output
-V
IN
-V
IN
Common
-V
OUT
+V
OUT
Common
+V
IN
+V
IN
For the alternate pin-out, add suffix “P2” to model number
(i.e.
MA424S-05RWI-P2)
Alternate Pin-Out Units
- Plastic Case
Alternate Pin-Out Units
- Metal Case
Pin Connectio
tions
Pin
1
2
3
10
11
12
13
14
15
22
23
24
Single Output
+V
IN
No Connection
No Connection
-V
OUT
+V
OUT
-V
IN
-V
IN
+V
OUT
-V
OUT
No Connection
No Connection
+V
IN
Pin
1
2
3
10
11
12
13
14
15
22
23
24
Dual Output
+V
IN
-V
OUT
V
Common
Common
+V
OUT
-V
IN
-V
IN
+V
OUT
Common
Common
-V
OUT
+V
IN
Notes:
•
All dimensions are typical in inches (mm)
•
Tolerance x.xx = ±0.02 (±0.50)
•
Pin 1 is marked by a “dot” or indentation on the top of the unit
MicroPower Direct
We Power Your Success - For Less!
292 Page Street Ste D Stoughton, MA 02072
•
TEL: (781) 344-8226
•
FAX: (781) 344-8481
•
E-Mail: sales@micropowerdirect.com
嵌入式系统
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
