MA300RU
Series
Wide 4:1 Input, 3W,
Single & Dual Output
DC/DC Converters
Electrical Specifications
Key Features:
•
3W Output Power
•
4:1 Input Voltage Range
•
1,500 VDC Isolation
•
16 Standard Models
•
Single & Dual Outputs
•
Compact DIP Case
•
-40°C to +85°C Operation
•
Industry Standard Pin-Out
Specifications typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice.
Input
Parameter
Input Start Voltage
Under Voltage Shutdown
Input Filter
Conditions
Min.
24 VDC Input
48 VDC Input
24 VDC Input
48 VDC Input
(Pi)
Filter
Conditions
Dual Output, Balanced Loads
V
IN
= Min to Max
I
OUT
= 0% to 100%
See Note 1
25% Load Step Change
Min.
Typ.
Max.
9.0
18.0
8.5
17.5
Units
VDC
VDC
Output
Parameter
Output Voltage Accuracy
Output Voltage Balance
Line Regulation
Load Regulation
Ripple & Noise (20 MHz)
Transient Recovery Time, See Note 2
Transient Response Deviation
Temperature Coefficient
Output Overload Protection
Output Short Circuit
Typ.
±0.5
±0.3
±0.3
200
±3.0
±0.01
Max.
±2.0
±2.0
±1.0
±1.0
70
500
±5.0
±0.02
Units
%
%
%
%
mV P - P
µSec
%
%/°C
%
3.0 kV Isolation
Models
Available
Foldback
120
Continuous (Autorecovery)
Conditions
60 Seconds
500 VDC
100 kHz/1.0V
Min.
1,500
1,000
90
Standard
EN 55022
EN 55022
EN 61000-4-2
EN 61000-4-3
EN 61000-4-4
EN 61000-4-5
EN 61000-4-6
Typ.
Max.
General
Parameter
Isolation Voltage
Isolation Resistance
Isolation Capacitance
Switching Frequency
EMI Characteristics
Parameter
Radiated Emissions
Conducted Emissions
ESD
RS
EFT
Surge
CS
Units
VDC
M
pF
kHz
2:1 Input Range
Models
Available
500
See Note 3
See Note 3
Level
Class A
Class A
Criteria A; ±8 kV Air ±6 kV Contact
Criteria A; 10V/m
Criteria A; ±2 kV
Criteria A; ±1 kV
Criteria A; 10V/m
Min.
-40
Typ.
+25
Max.
+85
+100
+125
95
Units
°C
°C
°C
%
Environmental
Parameter
Operating Temperature Range
Operating Temperature Range
Storage Temperature Range
Cooling
Humidity
Physical
Case Size
Case Material
Weight
Conditions
Ambient
Case
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
-50
Free Air Convection
RH, Non-condensing
1.25 x 0.80 x 0.40 Inches (31.75 x 20.32 x 10.16 mm)
Non-Conductive Black Plastic (UL94-V0)
0.45 Oz (12.8g)
Conditions
MIL HDBK 217F, 25°C, Gnd Benign
Conditions
24 VDC Input
48 VDC Input
1.5 mm From Case for 10 Sec
Min.
1.0
Min.
-0.7
-0.7
Typ.
Max.
Units
MHours
Units
VDC
°C
Reliability Specifications
Parameter
MTBF
Absolute Maximum Ratings
Parameter
Input Voltage Surge (1 Sec)
Lead Temperature
Typ.
Max.
50.0
100.0
260
Caution: Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings.
www.micropowerdirect.com
Model Selection Guide
Input
Model
Number
MA324S-05RU
MA324S-05RU
MA324S-12RU
MA324S-15RU
MA324S-24RU
MA324D-05RU
MA324D-12RU
MA324D-15RU
MA348S-03RU
MA348S-05RU
MA348S-12RU
MA348S-15RU
MA348S-24RU
MA348D-05RU
MA348D-12RU
MA348D-15RU
Voltage
(VDC)
Current
(mA)
Nominal
Range
Full-Load No-Load
24
9.0 - 36.0
134
30
24
9.0 - 36.0
158
30
24
9.0 - 36.0
152
30
24
9.0 - 36.0
151
30
24
9.0 - 36.0
154
30
24
9.0 - 36.0
130
30
24
9.0 - 36.0
152
30
24
9.0 - 36.0
152
30
48
18.0 - 75.0
67
20
48
18.0 - 75.0
78
20
48
18.0 - 75.0
75
20
18.0 - 75.0
74
20
48
48
18.0 - 75.0
76
20
18.0 - 75.0
65
20
48
48
18.0 - 75.0
76
20
18.0 - 75.0
76
20
48
Voltage
(VDC)
www.micropowerdirect.com
Output
Current
(mA, Max)
Current
(mA, Min)
Efficiency
(%, Typ)
Fuse
Reflected Capacitive
Ripple
Rating
Load
Current
Slow-Blow
(µF, Max)
(mA Typ)
(mA)
3.3
5.0
12.0
15.0
24.0
±5.0
±12.0
±15.0
3.3
5.0
12.0
15.0
24.0
±5.0
±12.0
±15.0
750.0
600.0
250.0
200.0
125.0
±250.0
±125.0
±100.0
750.0
600.0
250.0
200.0
125.0
±250.0
±125.0
±100.0
0.0
0.0
0.0
0.0
0.0
±0.0
±0.0
±0.0
0.0
0.0
0.0
0.0
0.0
±0.0
±0.0
±0.0
77
79
82
83
81
80
82
82
77
80
83
84
82
80
82
82
15.0
15.0
15.0
15.0
15.0
15.0
15.0
15.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
680
470
330
220
100
±220
±150
±100
680
470
330
220
100
±220
±150
±100
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
500
500
500
500
500
500
500
500
Notes:
1. When measuring output ripple, it is recommended that an external 3.3
µF
ceramic capacitor be
placed from the +V
OUT
pin to the -V
OUT
pin for single output units and from each output to common
for dual output units.
2. Transient recovery is measured to within a 1% error band for a load step change of 75% to 100%.
3. Operation at no-load will not damage these units.
4. An external 220
µF/100V
capacitor connected across the input pins is required to meet
EN61000-4-4 and EN61000-4-5.
5. Dual output units may be connected to provide a 10, 24 or 30 VDC output. To do this, connect the
load across the positive (+V
OUT
) and negative (-V
OUT
) outputs and float the output common.
6. The converter should be connected to a low ac-impedance source. An input source with a highly
inductive impedance may affect the stability of the converter. In applications where the converter
output loading is high and input power is supplied over long lines, it may be necessary to use
a capacitor on the input to insure start-up. In this case, it is recommended that a low ESR (ESR
<1.0 at 100 kHz) capacitor be mounted close to the converter. For 24V input units a 4.7
µF
is
recommended; and for 48V units a 2.2
µF.
7. It is recommended that a fuse be used on the input of a power supply for protection. See the table
above for the correct rating.
Derating Curve
Mechanical Dimensions
For 3 kV Isolation, See
MA300x-xxRUI
Series Datasheet
For 2:1 Inputs, See
MA300x-xxRW
Series Datasheet
Pin Connections
Pin
2, 3
9
11
14
16
22, 23
Single
-V
IN
No Pin
NC
+V
OUT
-V
OUT
+V
IN
Dual
-V
IN
Common
-V
OUT
+V
OUT
Common
+V
IN
NC: No Connection
Mechanical Notes:
•
All dimensions are typical in inches (mm)
•
Tolerance x.x = ±0.02 (±0.50)
•
Tolerance x.xx = ±0.01 (±0.25)
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
无线连接
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
