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MBU100 Series
1W, Ultra Miniature SIP, Single Output DC/DC Converter
Key Features
Efficiency up to 80% 1000VDC Isolation MTBF > 2,000,000 Hours Low Cost Input 5, 12 and 24VDC Output 5, 9, 12 and 15VDC Temperature Performance -40] to +75] UL 94V-0 Package Material Internal SMD Construction Industry Standard Pinout
Taking up as little as 0.18 square inches of board space, Minmax's MBU100 1W DC/DC's are specially designed to provide power distribution applications where space is critical in an ultra-miniature SIP package. The series consists of 12 models with input voltages of 5V, 12V and 24VDC which offers standard single output voltages of 5V, 9V, 12V, 15VDC. The MBU100 series is an excellent selection for a variety of applications including distributed power systems, mixed analog/digital subsystems, portable test equipments, local power networks and battery backed systems.
$
Low Cost
1000 VDC
I/O Isolation
Low Profile
Block Diagram
+Vo +Vin Bipolar Push-Pull Inverter -Vin -Vo
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MBU100 Series
Model Selection Guide
Model Number Input Voltage Output Voltage Output Current Input Current Load Regulation Efficiency
VDC MBU101 MBU102 MBU103 MBU104 MBU111 MBU112 MBU113 MBU114 MBU121 MBU122 MBU123 MBU124 5 (4.5~5.5)
12 (10.8~13.2)
24 (21.6~26.4)
VDC 5 9 12 15 5 9 12 15 5 9 12 15
Max. mA 200 110 84 67 200 110 84 67 200 110 84 67
Min. mA 4 2 1.5 1 4 2 1.5 1 4 2 1.5 1
@Max. Load mA (Typ.) 290 260 262 258 117 107 106 105 60 54 53 53
@No Load mA (Typ.) 30
13
7
% (Max.) 11 8 7 6 9 5 5 4 8 5 4 4
@Max. Load % (Typ.) 69 76 77 78 71 77 79 80 70 76 79 79
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 30 260 450 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 at the front end for protection.
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 Min. Max. -40 +75 -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 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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MBU100 Series
Output Specifications
Parameter Output Voltage Accuracy Line Regulation Load Regulation Ripple & Noise (20MHz) Ripple & Noise (20MHz) Ripple & Noise (20MHz) Over Load Temperature Coefficient Output Short Circuit Conditions For Vin Change of 1% Io=20% to 100% Over Line, Load & Temp. Min. Typ. Max. --{1.0 {3.0 --{1.2 {1.5 See Model Selection Guide --100 150 ----200 ----5 120 ------{0.01 {0.02 0.5 Second Max. Unit % % % mV P-P mV P-P mV rms % %/]
General Specifications
Parameter Isolation Voltage Rated Isolation Voltage Test Isolation Resistance Isolation Capacitance Switching Frequency MTBF Conditions 60 Seconds Flash Tested for 1 Second 500VDC 100KHz,1V MIL-HDBK-217F @ 25], Ground Benign Min. 1000 1100 1000 --50 2000 Typ. ------60 90 --Max. ------100 110 --Unit VDC VDC M[ pF KHz K Hours
Capacitive Load
Models by Vout Maximum Capacitive Load 5V 33 9V 33 12V 33 15V 33 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
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MBU100 Series
90 80 Efficiency (%) 70 60 50 40
100 90 Efficiency (%) 80 70 60 50
30 20 10 20 40 60 80 100
Low
Nom Input Voltage (V)
High
Load Current (%)
Efficiency vs Input Voltage
Efficiency vs Output Load
100 80 Output Power (%) 100LFM Natural convection 400LFM Output Power (%)
100 80 100LFM Natural convection 200LFM
200LFM
400LFM
60
60
40
40
20 0 -40
20 0 50 60 70 80 ] 90 100 110 -40
50 60 70 80 ] 90 100 110
Ambient Temperature
Ambient Temperature
Derating Curve ( 5V Output Only )
Derating Curve ( All Other Output )
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MBU100 Series
Test Configurations
+ +Vin + Cin -Vin -Out DC / DC Converter +Out Load
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
DC Power Source -
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 1uF capacitors at the output.
+ DC Power Source -Vin +Vin Single Output DC / DC Converter -Out +Out
DC / DC Converter -Vin -Out
Cin
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
Cout
Load
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.
Design & Feature Considerations
Maximum Capacitive Load
The MBU100 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. For optimum performance we recommend 33uF maximum capacitive load for devices. The maximum capacitance can be found in the data sheet.
Position of air velocity probe and thermocouple 15mm / 0.6in
50mm / 2in
Air Flow
DUT
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 recommended to use a good quality low Equivalent Series Resistance (ESR < 1.0[ at 100 KHz) capacitor of a 1.5uF for the 5V input devices, a 1.0uF for the 12V input devices and a 0.47uF for the 24V devices.
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MBU100 Series
Mechanical Dimensions
Bottom View ( 2.54 mm / 0.1 inch grids )
Connecting Pin Patterns
11.5 [0.45]
0.25 [0.010]
2.54 [0.100] 10.5 [0.41]
T: 6.1(0.24) for 5V&12V Input Models T: 7.1(0.28) for 24V Input Models Tolerance Millimeters X.X{0.25 Pin X.XX{0.13 {0.05 Inches X.XX{0.01 X.XXX{0.005 {0.002
Pin Connections
Pin 1 2 3 4 Function -Vin +Vin -Vout +Vout
T
1
2
3
4
1.8 [0.07]
3.2 [0.13]
1.9 [0.08]
10.2 [0.40]
0.5 [0.02]
Physical Characteristics
Case Size : (5 & 12V Input) Case Size (24V Input) Case Material 11.5*6.1*10.2 mm 0.45*0.24*0.40 inches 11.5*7.1*10.2mm 0.45*0.28*0.40 inches Non-Conductive Black Plastic 1.3g (5 & 12V Input) 1.7g (24V Input)
:
:
Weight
:
The MBU100 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
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