Dual Output
Single Output
Block Diagram
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.
y Internal SMD Construction
y UL 94V-0 Package Material y Lead Frame Technology y Temperature Performance -40] to +85]y Output 5, 12, {5, {12 and {15VDC
y Input 5, 12 and 24VDC
y Low Cost
y MTBF > 2,000,000 Hours y 1000VDC Isolation
y Efficiency up to 82%Key Features
2W, Miniature SMD, Single & Dual Output DC/DC Converters
MSAU400 Series
REV:0 2005/04
MINMAX
1
82
5
100
{1{66{15
MSAU429
815102{1.5{83{12MSAU428815101316512MSAU42378815
1068400524
(21.6 ~ 26.4)
MSAU421825201{1{66{15MSAU419825202{1.5{83{12MSAU418825201316512MSAU41378830
2138400512
(10.8 ~ 13.2)
MSAU411797501{1{66{15MSAU409797504{1.5{83{12MSAU4087710519{4{200{5MSAU4068111488316512MSAU403771160
519840055(4.5 ~ 5.5)
MSAU401% (Typ.)% (Max.)mA (Typ.)
mA (Typ.)mA mA VDC VDC
@Max. Load @No Load @Max. Load Min.Max.Efficiency
Load Regulation
Input Current
Output Current
Output Voltage
Input Voltage
Model Number
Model Selection Guide
Free-Air Convection
Cooling
%
95
---Humidity ]+125-40Storage Temperature ]+90-40Case
Operating Temperature ]+85-40Ambient Operating Temperature Unit Max.Min.Conditions Parameter
Environmental Specifications
Exceeding the absolute maximum ratings of the unit could cause damage.These are not continuous operating ratings.
mW
650
---Internal Power Dissipation
]300---Lead Temperature (1.5mm from case for 10 Sec.)VDC 30-0.724VDC Input Models
VDC 18-0.712VDC Input Models
VDC 9-0.75VDC Input Models
Input Surge Voltage
( 1000 mS )
Unit Max.Min.Parameter
Notes :
1. Specifications typical at Ta=+25], resistive load,nominal input voltage, rated output current unless otherwise noted.
2. Ripple & Noise measurement bandwidth is 0-20MHz.
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.
6. Other input and output voltage may be available,please contact factory.
7. Specifications subject to change without notice.
Absolute Maximum Ratings
Internal Capacitor
Input Filter
A 0.3
------All Models
Reverse Polarity Input Current 26.42421.624V Input Models
13.21210.812V Input Models VDC 5.554.55V Input Models Input Voltage Range
Unit
Max.Typ.Min.Model Parameter
Input Specifications
MSAU400 Series
2
MINMAX REV:0 2005/04
K Hours
------2000
MIL-HDBK-217F @ 25], Ground Benign
MTBF
KHz 12010070Switching Frequency pF 10060---100KHz,1V
Isolation Capacitance G[------10500VDC Isolation Resistance VDC ------1100Flash Tested for 1 Second
Isolation Voltage Test VDC ------100060 Seconds
Isolation Voltage Unit Max.Typ.Min.Conditions Parameter
General Specifications
0.5 Second Max.
Output Short Circuit
%/]
{0.02
{0.01
---Temperature Coefficient %------120Over Load
mV rms 5------Ripple & Noise (20MHz)mV P-P 150------Over Line, Load & Temp.Ripple & Noise (20MHz)mV P-P 7550---Ripple & Noise (20MHz)%See Model Selection Guide
Io=20% to 100%Load Regulation %{1.5{1.2---For Vin Change of 1%Line Regulation %{1.0{0.1---Dual Output, Balanced Loads
Output Voltage Balance %{4.0{1.5---Output Voltage Accuracy Unit Max.Typ.Min.Conditions
Parameter
Output Specifications
# For each output
uF
4.7
4.7
10
10
47
Maximum Capacitive Load Unit {15V #{12V #{5V #12V 5V Models by Vout Capacitive Load
200mA Slow - Blow Type
500mA Slow - Blow Type
1000mA Slow - Blow Type
24V Input Models 12V Input Models 5V Input Models Input Fuse Selection Guide
Derating Curve
MSAU400 Series
REV:0 2005/04
MINMAX
3
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.
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.
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.
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.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 100KHz) 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.
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.
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.
MSAU400 Series
4
MINMAX REV:0 2005/04
Single Output
Connecting Pin Patterns
Top View ( 2.54 mm / 0.1 inch grids )
Mechanical Dimensions
{0.002
{0.05
Pin X.XXX{0.005X.XX{0.13
X.XX{0.01X.X{0.25Inches Millimeters Tolerance MSAU400 Series
REV:0 2005/04
MINMAX
5
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.
NA:Not Available for Electrical Connection
UL94V-0
:
Flammability
2.2g :Weight (Dual Output)NA
No Pin
10
1.5g :
Weight (Single Output)No Pin NA 8Molding :Case Material +Vout No Pin 7-Vout +Vout 5Common -Vout 415.3*9.3*8.9 mm
0.60*0.36*0.35 inches :Case Size (Dual Output)+Vin +Vin 2-Vin -Vin 112.8*9.3*8.9 mm
0.50*0.36*0.35 inches :
Case Size
(Single Output)Dual Output
Single Output
Pin Physical Characteristics
Pin Connections
MSAU400 Series
6
MINMAX REV:0 2005/04