MSAU300 Series
1W, High Isolation SMD, Single & Dual Output DC/DC Converters
Key Features
Efficiency up to 81%
3000VDC Isolation
MTBF > 2,000,000 Hours
Low Cost
Input 5, 12 and 24VDC
Output 5, 12, 15, {5, {12 and {15VDC
Temperature Performance -40] to +85]
Lead Frame Technology
UL 94V-0 Package Material
Internal SMD Construction
Minmax's MSAU300 1W DC/DC's are in "gull-wing" SMT package,
weigh a mere 2.2 grams and meet 245]/10sec in solder-reflow for lead
free process.
The series is designed to provide high levels of isolation 3000VDC. It
consists of 18 models with input voltages of 5V,12V and 24VDC which
offers standard output voltages of 5V, 12V, 15V, {5V, {12V and
{15VDC for the choice. Their impressive guaranteed efficiencies enable
all models to deliver their fully rated output power from -40] to +85]
without heat sinking or forced-air cooling.
The MSAU300 series is an excellent selection for a variety of
applications including data communication equipments, distributed power
systems, telecommunication equipments and industrial robot systems.
The MSAU300 units are available in tape and reel package.
I/O Isolation
SMD
3000
VDC
$
Low Cost
Low Profile
Block Diagram
Single Output
Dual Output
+Vo
+Vin
Bipolar
Push-Pull
Inverter
-Vin
-Vo
-Vin
+Vin
Bipolar
Push-Pull
Inverter
+Vo
Com.
-Vo
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MINMAX
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MSAU300 Series
Model Selection Guide
Model
Number
Input
Voltage
Output
Voltage
Output Current
Input Current
Load
Regulation
Efficiency
VDC
MSAU301
MSAU303
MSAU304
MSAU306
MSAU308
MSAU309
MSAU311
MSAU313
MSAU314
MSAU316
MSAU318
MSAU319
MSAU321
MSAU323
MSAU324
MSAU326
MSAU328
MSAU329
5
(4.5 ~ 5.5)
12
(10.8 ~ 13.2)
24
(21.6 ~ 26.4)
VDC
5
12
15
{5
{12
{15
5
12
15
{5
{12
{15
5
12
15
{5
{12
{15
Max.
mA
200
84
67
{100
{42
{34
200
84
67
{100
{42
{34
200
84
67
{100
{42
{34
Min.
mA
4
1.5
1
{2
{0.8
{0.7
4
1.5
1
{2
{0.8
{0.7
4
1.5
1
{2
{0.8
{0.7
@Max. Load
mA (Typ.)
281
258
258
277
255
258
117
106
104
112
105
104
58
53
53
57
53
53
@No Load
mA (Typ.)
30
12
7
% (Max.)
10
7
7
10
7
7
8
5
5
8
5
5
8
5
5
8
5
5
@Max. Load
% (Typ.)
71
78
78
72
78
79
71
79
80
74
80
81
71
78
79
72
79
80
Absolute Maximum Ratings
Parameter
5VDC Input Models
Input Surge Voltage
12VDC Input Models
( 1000 mS )
24VDC Input Models
Lead Temperature (1.5mm from case for 10 Sec.)
Internal Power Dissipation
Min.
-0.7
-0.7
-0.7
---
---
Max.
9
18
30
300
550
Unit
VDC
VDC
VDC
]
mW
Notes :
1. Specifications typical at Ta=+25], resistive load,
nominal input voltage, rated output current unless
otherwise noted.
2. Ripple & Noise measurement bandwidth is 0-20
MHz.
3. These power converters require a minimum
output loading to maintain specified regulation.
4. Operation under no-load conditions will not
damage these modules; however, they may not
meet all specifications listed.
5. All DC/DC converters should be externally fused
on the front end for protection.
Min.
Max.
-40
+85
-40
+90
-40
+125
---
95
Free-Air Convection
Unit
]
]
]
%
6. Other input and output voltage may be available,
please contact factory.
7. Specifications subject to change without notice.
Exceeding the absolute maximum ratings of the unit could cause damage.
These are not continuous operating ratings.
Environmental Specifications
Parameter
Operating Temperature
Operating Temperature
Storage Temperature
Humidity
Cooling
Conditions
Ambient
Case
Input Specifications
Parameter
Input Voltage Range
Model
5V Input Models
12V Input Models
24V Input Models
Reverse Polarity Input Current
Input Filter
All Models
Min.
4.5
10.8
21.6
---
Typ.
5
12
24
---
Max.
5.5
13.2
26.4
0.3
A
VDC
Unit
Internal Capacitor
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MINMAX
2
MSAU300 Series
Output Specifications
Parameter
Output Voltage Accuracy
Output Voltage Balance
Line Regulation
Load Regulation
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Over Load
Temperature Coefficient
Output Short Circuit
Over Line, Load & Temp.
Dual Output, Balanced Loads
For Vin Change of 1%
Io=20% to 100%
Conditions
Min.
---
---
---
---
---
---
120
---
0.5 Second Max.
Typ.
{1.5
{0.1
{1.2
50
---
---
---
{0.01
Max.
{4.0
{1.0
{1.5
75
150
5
---
{0.02
Unit
%
%
%
%
mV P-P
mV P-P
mV rms
%
%/]
See Model Selection Guide
General Specifications
Parameter
Isolation Voltage Rated
Isolation Voltage Test
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.
3000
3300
10
---
70
2000
Typ.
---
---
---
60
100
---
Max.
---
---
---
100
120
---
Unit
VDC
VDC
G[
pF
KHz
K Hours
Capacitive Load
Models by Vout
Maximum Capacitive Load
# For each output
5V
33
12V
4.7
15V
4.7
{5V #
10
{12V #
2.2
{15V #
2.2
Unit
uF
Input Fuse Selection Guide
5V Input Models
500mA Slow - Blow Type
12V Input Models
200mA Slow - Blow Type
24V Input Models
100mA Slow - Blow Type
100
80
Output Power (%)
100LFM
400LFM
200LFM
60
Natural
convection
40
20
0
-40
〜
50
60
70
80
]
90
100
110
Ambient Temperature
Derating Curve
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MSAU300 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.
To Oscilloscope
+
Battery
+
Lin
Current
Probe
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 2.2uF for the 5V input devices, a 1.0uF for
the 12V input devices and a 0.47uF for the 24V devices.
+
+Vin
+
Cin
-Vin
-Out
DC / DC
Converter
+Out
Load
+Vin
+Out
Load
DC Power
Source
-
DC / DC
Converter
-Vin
-Out
Cin
Output Ripple Reduction
Peak-to-Peak Output Noise Measurement Test
Use a Cout 0.33uF 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.
+Vin
Single Output
DC / DC
Converter
-Vin
-Out
+Out
Copper Strip
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 1.0uF
capacitors at the output.
+
DC Power
Source
-
-Vin
+Vin
Single Output
DC / DC
Converter
-Out
+Out
Cout
Load
+Vin
Dual Output
DC / DC
Converter
-Vin
+Out
Com.
Copper Strip
Cout
Cout
Scope
Resistive
Load
Scope
+
DC Power
Source
-
+Vin
+Out
Dual Output
DC / DC Com.
Converter
Cout
Load
-Vin
-Out
-Out
Design & Feature Considerations
Maximum Capacitive Load
The MSAU300 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.
The maximum capacitance can be found in the data sheet.
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.
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.
Position of air velocity
probe and thermocouple
15mm / 0.6in
50mm / 2in
Air Flow
DUT
REV:0 2005/04
MINMAX
4
MSAU300 Series
Mechanical Dimensions
Connecting Pin Patterns
Top View (2.54 mm / 0.1 inch grids)
12
11
10
8
7
2.2[0.08]
2.54[0.100]
1.0
1
2
3
5
6
8.0[0.31]
15.24
1.27
1.3
[0.05]
2.54
2.54
[0.100] [0.100]
2.54 2.54
5.08
2.54
5.08
[0.200]
2.54
[0.100]
15.3[0.60]
14.8[0.58]
8.0[0.31]
6.7[0.26]
12.7
0.1[0.04]
[0.07]
2.0
C1.0
6.7[0.26]
4.7[0.18]
7.0[0.27]
5.2[0.20]
8
1.0
7.0[0.27]
9.2[0.36]
11.2[0.44]
0.25[0.01]
0.6[0.023]
14.3[0.56]
0 ~4
Tolerance
Millimeters
X.X{0.25
X.XX{0.13
{0.05
Inches
X.XX{0.01
X.XXX{0.005
{0.002
Pin
Pin Connections
Pin
1
2
3
5
6
7
8
10
11
12
Single Output
-Vin
+Vin
NA
-Vout
NA
NA
+Vout
NA
NA
NA
Dual Output
-Vin
+Vin
NA
Common
-Vout
NA
+Vout
NA
NA
NA
Physical Characteristics
15.3*8.0*7.0 mm
0.60*0.31*0.27 inches
Case Size
Case Material
Weight
Flammability
:
:
Molding
:
2.2g
:
UL94V-0
NA: Not Available for Electrical Connection
The MSAU300 converter is encapsulated in a low thermal resistance molding compound that has excellent resistance/electrical
characteristics over a wide temperature range or in high humidity environments.
The encapsulant and unit case are both rated to UL 94V-0 flammability specifications.
Leads are tin plated for improved solderability.
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MINMAX
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