MSAU300 Series
1W, High Isolation SMD, Single & Dual Output DC/DC Converters
Key Features
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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
SMD
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.
3000
VDC
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.
I/O Isolation
The MSAU300 units are available in tape and reel package.
$
Low Cost
Low Profile
Block Diagram
Single Output
Dual Output
+Vo
+Vo
+Vin
+Vin
Bipolar
Push-Pull
Inverter
Bipolar
Push-Pull
Inverter
-Vin
-Vin
-Vo
1
Com.
MINMAX
-Vo
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MSAU300 Series
Model Selection Guide
Model
Number
MSAU301
MSAU303
MSAU304
MSAU306
MSAU308
MSAU309
MSAU311
MSAU313
MSAU314
MSAU316
MSAU318
MSAU319
MSAU321
MSAU323
MSAU324
MSAU326
MSAU328
MSAU329
Input
Voltage
Output
Voltage
VDC
VDC
5
12
15
{5
{12
{15
5
12
15
{5
{12
{15
5
12
15
{5
{12
{15
5
(4.5 ~ 5.5)
12
(10.8 ~ 13.2)
24
(21.6 ~ 26.4)
Output Current
Max.
mA
200
84
67
{100
{42
{34
200
84
67
{100
{42
{34
200
84
67
{100
{42
{34
Input Current
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
Absolute Maximum Ratings
@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
Efficiency
@Max. Load
% (Typ.)
71
78
78
72
78
79
71
79
80
74
80
81
71
78
79
72
79
80
Notes :
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
Exceeding the absolute maximum ratings of the unit could cause damage.
These are not continuous operating ratings.
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.
Environmental Specifications
Parameter
Operating Temperature
Operating Temperature
Storage Temperature
Humidity
Cooling
@Max. Load
mA (Typ.)
281
258
258
277
255
258
117
106
104
112
105
104
58
53
53
57
53
53
Load
Regulation
Conditions
Ambient
Case
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.
Input Specifications
Parameter
Input Voltage Range
Reverse Polarity Input Current
Input Filter
REV:0 2005/04
Model
Min.
Typ.
Max.
5V Input Models
4.5
5
5.5
12V Input Models
10.8
12
13.2
24V Input Models
21.6
24
26.4
---
---
0.3
All Models
MINMAX
Unit
VDC
A
Internal Capacitor
2
MSAU300 Series
Output Specifications
Parameter
Conditions
Min.
Typ.
Max.
Unit
---
{1.5
{4.0
%
Dual Output, Balanced Loads
---
{0.1
{1.0
%
Line Regulation
For Vin Change of 1%
---
{1.2
{1.5
Load Regulation
Io=20% to 100%
Output Voltage Accuracy
Output Voltage Balance
%
See Model Selection Guide
Ripple & Noise (20MHz)
%
---
50
75
mV P-P
---
---
150
mV P-P
Ripple & Noise (20MHz)
---
---
5
mV rms
Over Load
120
---
---
%
Temperature Coefficient
---
{0.01
{0.02
%/]
Typ.
Max.
Unit
Ripple & Noise (20MHz)
Over Line, Load & Temp.
Output Short Circuit
0.5 Second Max.
General Specifications
Parameter
Conditions
Isolation Voltage Rated
Isolation Voltage Test
Min.
60 Seconds
3000
---
---
VDC
Flash Tested for 1 Second
3300
---
---
VDC
G[
Isolation Resistance
500VDC
10
---
---
Isolation Capacitance
100KHz,1V
---
60
100
pF
70
100
120
KHz
2000
---
---
K Hours
Switching Frequency
MTBF
MIL-HDBK-217F @ 25], Ground Benign
Capacitive Load
Models by Vout
Maximum Capacitive Load
5V
12V
15V
{5V #
{12V #
{15V #
Unit
33
4.7
4.7
10
2.2
2.2
uF
# For each output
Input Fuse Selection Guide
5V Input Models
12V Input Models
24V Input Models
500mA Slow - Blow Type
200mA Slow - Blow Type
100mA Slow - Blow Type
100
100LFM
400LFM
200LFM
Output Power (%)
80
60
Natural
convection
40
20
0
〜
-40
50
60
70
90
80
Ambient Temperature
100
110
]
Derating Curve
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MSAU300 Series
Test Configurations
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.
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.
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.
+
To Oscilloscope
+
Battery
+
+Vin
Lin
DC / DC
Converter
Current
Probe
Cin
-Vin
DC Power
Source
+Out
Load
+Vin
+
+Out
DC / DC
Converter
Load
Cin
-
-Vin
-Out
-Out
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
+Out
Single Output
DC / DC
Converter
-Out
+Vin
+Out
Dual Output
DC / DC
Converter
Com.
-Vin
-Out
+
Copper Strip
Cout
-Vin
Scope
Copper Strip
Cout
Scope
Cout
Scope
-
-Vin
+
+Vin
Cout
Load
-Out
+Out
Dual Output
DC / DC Com.
Converter
-
-Vin
Cout
Load
-Out
Thermal 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.
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.
+Out
Single Output
DC / DC
Converter
DC Power
Source
Resistive
Load
Input Source Impedance
+Vin
DC Power
Source
Resistive
Load
Design & Feature Considerations
REV:0 2005/04
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.
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.
Position of air velocity
probe and thermocouple
15mm / 0.6in
MINMAX
50mm / 2in
Air Flow
DUT
4
MSAU300 Series
Connecting Pin Patterns
Mechanical Dimensions
11
10
8
7
5
6
8.0[0.31]
12
Top View (2.54 mm / 0.1 inch grids)
2.2[0.08]
2.54[0.100]
1.0
1
2
3
15.24
1.27
2.54
2.54
[0.100] [0.100]
5.08
[0.200]
8.0[0.31]
14.8[0.58]
1.8
5.2[0.20]
7.0[0.27]
C1.0
1.0
7.0[0.27]
9.2[0.36]
11.2[0.44]
0.25[0.01]
6.7[0.26]
2.0
4.7[0.18]
0.1[0.04]
[0.07]
12.7
6.7[0.26]
0.6[0.023]
14.3[0.56]
Pin
2.54
5.08
[0.100]
15.3[0.60]
Tolerance
2.54 2.54
2.54
8
1.3
[0.05]
Millimeters
X.X{0.25
Inches
X.XX{0.01
X.XX{0.13
{0.05
X.XXX{0.005
{0.002
Pin Connections
0 ~4
Physical Characteristics
Pin
Single Output
Dual Output
1
-Vin
-Vin
2
+Vin
+Vin
3
NA
NA
5
-Vout
Common
6
NA
-Vout
7
NA
NA
8
+Vout
+Vout
10
NA
NA
11
NA
NA
12
NA
NA
15.3*8.0*7.0 mm
0.60*0.31*0.27 inches
Case Size
:
Case Material
: Molding
Weight
: 2.2g
Flammability
: 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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