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MSAU400 Series
2W, Miniature SMD, Single & Dual Output DC/DC Converters
Key Features
Efficiency up to 82% 1000VDC Isolation MTBF > 2,000,000 Hours Low Cost Input 5, 12 and 24VDC Output 5, 12, {5, {12 and {15VDC Temperature Performance -40] to +85] Lead Frame Technology UL 94V-0 Package Material Internal SMD Construction
Minmax's MSAU400 2W 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 consists of 13 models with input voltages of 5V,12V and 24VDC which offers standard output voltages of 5V, 12V, {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 MSAU400 series are excellent selections for a variety of applications including data communication equipments, distributed power systems, telecommunication equipments and industrial robot systems. The MSAU400 units are available in tape and reel package.
I/O Isolation
Low Cost Low Profile SMD
1000 VDC
$
Block Diagram
Single Output Dual Output
+Vo +Vin Bipolar Push-Pull Inverter -Vin -Vo
-Vin +Vin Bipolar Push-Pull Inverter
+Vo
Com
-Vo
1
MINMAX
REV:0 2005/04
MSAU400 Series
Model Selection Guide
Model Number Input Voltage Output Voltage Output Current Input Current Load Regulation Efficiency
VDC MSAU401 MSAU403 MSAU406 MSAU408 MSAU409 MSAU411 MSAU413 MSAU418 MSAU419 MSAU421 MSAU423 MSAU428 MSAU429
5 (4.5 ~ 5.5)
12 (10.8 ~ 13.2)
24 (21.6 ~ 26.4)
VDC 5 12 {5 {12 {15 5 12 {12 {15 5 12 {12 {15
Max. mA 400 165 {200 {83 {66 400 165 {83 {66 400 165 {83 {66
Min. mA 8 3 {4 {1.5 {1 8 3 {1.5 {1 8 3 {1.5 {1
@Max. Load mA (Typ.) 519 488 519 504 501 213 201 202 201 106 101 102 100
@No Load mA (Typ.)
60
30
15
% (Max.) 11 11 10 7 7 8 5 5 5 8 5 5 5
@Max. Load % (Typ.) 77 81 77 79 79 78 82 82 82 78 81 81 82
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 30 300 650 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
REV:0 2005/04
MINMAX
2
MSAU400 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 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. 1000 1100 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 47 12V 10 {5V # 10 {12V # 4.7 {15V # 4.7 Unit uF
Input Fuse Selection Guide
5V Input Models 1000mA Slow - Blow Type 12V Input Models 500mA Slow - Blow Type 24V Input Models 200mA Slow - Blow Type
100 80 Output Power (%) 100LFM
400LFM 200LFM
60 Natural convection
40
20 0 -25
50 60 70 80 ] 90 100 110
Ambient Temperature
Derating Curve
3
MINMAX
REV:0 2005/04
MSAU400 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 +Vin +Out Load
Capacitor mounted close to the power module helps ensure stability of the unit, it is comended 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.
+ DC Power Source + Cin -Vin -Out +Vin DC / DC Converter +Out Load
DC / DC Converter -Vin -Out
Cin
Output Ripple Reduction
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 1.5uF capacitors at the output.
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
+ DC Power Source -
+Vin Single Output DC / DC Converter -Vin
+Out
Cout -Out
Load
+
+Vin
+Out Dual Output DC / DC Com. Converter Cout Load
+Vin Dual Output DC / DC Converter -Vin
+Out Com.
Copper Strip Cout Cout Scope Resistive Load Scope
DC Power Source -Vin
-Out
-Out
Design & Feature Considerations
Maximum Capacitive Load
The MSAU400 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 90C. 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. 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. REV:0 2005/04
Position of air velocity probe and thermocouple 15mm / 0.6in
50mm / 2in
Air Flow
DUT
MINMAX
4
MSAU400 Series
Mechanical Dimensions
Top View ( 2.54 mm / 0.1 inch grids )
Connecting Pin Patterns
Single Output
8 5 9.3[0.36]
1.2[0.04]
2.57[0.101]
1.0
1 2.57 2.54
[0.101] [0.100]
12.75 1.20
2 5.08 [0.200]
4
0.1[0.04]
12.70
12.4[0.48]
9.30
12.7[0.50]
9.3[0.36] 8.9[0.35]
6.7[0.26]
8.7[0.34] 8.9[0.35]
2.54 2.54
0 ~4 2.25[0.08] 8.6[0.33] 10.0[0.39] 11.8[0.46]
5.08
0.6[0.023] 12.4[0.48]
0.25[0.01]
[0.07]
2.0
0.15
Dual Output
10 1.2[0.04] 2.54[0.10]
1.0
7 9.3[0.36]
15.24 1.20
1
2 5.08 [0.200]
4
5 2.54
[0.100] [0.100]
2.54 2.54
[0.100]
0.1[0.04]
12.70
9.3[0.36] 8.9[0.35]
14.8[0.58]
9.30
15.3[0.60]
6.7[0.26]
8.7[0.34] 8.9[0.35]
2.54 2.54
0 ~4 2.25[0.08] 8.6[0.33] 10.0[0.39] 11.8[0.46]
5.08
2.54
0.25[0.01]
0.6[0.023] 14.8[0.58]
[0.07]
2.0
0.15
Tolerance
Millimeters X.X{0.25 X.XX{0.13
Inches X.XX{0.01 X.XXX{0.005 {0.002
Pin
{0.05
5
MINMAX
REV:0 2005/04
1.70 0.10
1.70
0.10
MSAU400 Series
Pin Connections
Pin 1 2 4 5 7 8 10 Single Output -Vin +Vin -Vout +Vout No Pin NA No Pin Dual Output -Vin +Vin Common -Vout +Vout No Pin NA
Physical Characteristics
Case Size (Single Output) Case Size (Dual Output) Case Material Weight (Dual Output) Flammability 12.8*9.3*8.9 mm 0.50*0.36*0.35 inches 15.3*9.3*8.9 mm 0.60*0.36*0.35 inches Molding 1.5g 2.2g UL94V-0
:
: : : :
Weight (Single Output) :
NA:Not Available for Electrical Connection
The MSAU400 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.
REV:0 2005/04
MINMAX
6

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