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MPW1000 Series
25-30W, Wide Input Range, Single & Dual Output DC/DC Converters
Key Features
Efficiency up to 89% 1500VDC Isolation MTBF > 1,000,000 Hours CSA1950 Safety Approval Complies with EN55022 Class A Six-Sided Shielding Remote On/Off Control Over Voltage Protection Over Temperature Protection Output Trim Low Profile: 0.37"(9.3mm) Soft Start
Minmax's MPW1000-Series power modules are low-profile dc-dc converters that operate over input voltage ranges of 9-18VDC, 18-36VDC and 36-75VDC which provide precisely regulated output voltages of 3.3V, 5V, 12V, 15V, {12V and {15VDC, specially addressing data communication equipments, mobile battery driven equipments, distributed power systems, telecommunication equipments, mixed analog/digital subsystems, process/machine control equipments, computer peripheral systems and industrial robot systems. Packing up to 30W of power into a 2x1.6x0.37inch package, with efficiencies as high as 89%, the MPW1000 includes continuous short circuit protection, overvoltage protection, over temperature protection, output trim function, remote on/off, six-sided shielded case and EN55022 Class A conducted noise compliance minimize design-in time, cost and eliminate the need for external filtering.
Wide Range
OVP
Protection
OTP
Protection Remote on/off
High Power Density
More Power
2:1
1500 VDC
I/O Isolation
EMI
EN55022 Low Profile
Block Diagram
Single Output Dual Output
+Vin
LC Filter
+Vo
+Vin
LC Filter
+Vo Com.
-Vo OVP OTP PWM Isolation OVP -Vin Ref.Amp Trim On/Off PWM Isolation Ref.Amp OVP OTP OVP
-Vo
-Vin On/Off
Trim
1
MINMAX
REV:0 2005/04
MPW1000 Series
Model Selection Guide
Model Number Input Voltage Output Voltage Output Current Input Current Reflected Ripple Current mA (Typ.) Over Voltage Protection VDC 3.9 6.8 15 18 {15 {18 3.9 6.8 15 18 {15 {18 3.9 6.8 15 18 {15 {18 Efficiency
VDC MPW1021 MPW1022 MPW1023 MPW1024 MPW1026 MPW1027 MPW1031 MPW1032 MPW1033 MPW1034 MPW1036 MPW1037 MPW1041 MPW1042 MPW1043 MPW1044 MPW1046 MPW1047
12 ( 9 ~ 18 )
24 ( 18 ~ 36 )
48 ( 36 ~ 75 )
VDC 3.3 5 12 15 {12 {15 3.3 5 12 15 {12 {15 3.3 5 12 15 {12 {15
Max. mA 5500 5000 2500 2000 {1250 {1000 5500 5000 2500 2000 {1250 {1000 5500 5000 2500 2000 {1250 {1000
Min. mA 400 350 166 133 {83 {65 400 350 166 133 {83 {65 400 350 166 133 {83 {65
@Max. Load @No Load mA (Typ.) mA (Typ.) 1867 2480 2841 40 2841 2841 2841 922 1225 1404 20 1404 1404 1404 461 613 702 10 702 702 702
100
50
25
@Max. Load % (Typ.) 81 84 88 88 88 88 82 85 89 89 89 89 82 85 89 89 89 89
Absolute Maximum Ratings
Parameter 12VDC Input Models Input Surge Voltage 24VDC Input Models ( 1000 mS ) 48VDC Input Models Lead Temperature (1.5mm from case for 10 Sec.) Internal Power Dissipation Min. -0.7 -0.7 -0.7 ----Max. 25 50 100 260 5500 Unit VDC VDC VDC ] mW
Notes :
1. Specifications typical at Ta=+25], resistive load, nominal input voltage, rated output current unless otherwise noted. 2. Transient recovery time is measured to within 1% error band for a step change in output load of 75% to 100%. 3. Ripple & Noise measurement bandwidth is 0-20 MHz. 4. These power converters require a minimum output loading to maintain specified regulation.
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 RFI Conducted EMI Conditions Ambient Case Min. Max. -40 +50 -40 +105 -50 +125 --95 Free-Air Convection Six-Sided Shielded, Metal Case EN55022 Class A Unit ] ] ] %
5. Operation under no-load conditions will not damage these modules; however, they may not meet all specifications listed. 6. All DC/DC converters should be externally fused at the front end for protection. 7. Other input and output voltage may be available, please contact factory. 8. Specifications subject to change without notice.
REV:0 2005/04
MINMAX
2
MPW1000 Series
Input Specifications
Parameter Start Voltage Model 12V Input Models 24V Input Models 48V Input Models Under Voltage Shutdown 12V Input Models 24V Input Models 48V Input Models Reverse Polarity Input Current Short Circuit Input Power Input Filter All Models Min. 8.6 17 34 8.1 16 32 ----Typ. 8.8 17.5 35 8.3 16.5 33 ----Pi Filter Max. 9 18 36 8.5 17 34 2 4500 A mW VDC Unit
Output Specifications
Parameter Output Voltage Accuracy Output Voltage Balance Line Regulation Load Regulation Ripple & Noise (20MHz) Ripple & Noise (20MHz) Ripple & Noise (20MHz) Over Power Protection Transient Recovery Time Transient Response Deviation Temperature Coefficient Output Short Circuit 25% Load Step Change Over Line, Load & Temp. Dual Output, Balanced Loads Vin=Min. to Max. Io=10% to 100% Conditions Min. --------------110 ------Continuous Typ. {0.5 {0.5 {0.1 {0.1 55 ------150 {2 {0.01 Max. {1.0 {2.0 {0.3 {0.5 80 100 10 160 300 {4 {0.02 Unit % % % % mV P-P mV P-P mV rms % uS % %/]
General Specifications
Parameter Isolation Voltage Rated Isolation Voltage Test Isolation Resistance Isolation Capacitance Switching Frequency Over Temperature Protection MTBF Case Temperature, automatic recovery MIL-HDBK-217F @ 25], Ground Benign Conditions 60 Seconds Flash Tested for 1 Second 500VDC 100KHz,1V Min. 1500 1650 1000 --290 107 1000 Typ. ------1200 330 112 --Max. ------1500 360 117 --Unit VDC VDC M[ pF KHz ] K Hours
Remote On/Off Control
Parameter Supply On Supply Off Device Standby Input Current Control Input Current ( on ) Control Input Current ( off ) Control Common Vin -RC = 5.0V Vin -RC = 0V Conditions Min. 2.5 to 100VDC or Open Circuit -1 --------2 ----1 5 5 -100 Typ. Max. Unit VDC VDC mA uA uA
Referenced to Negative Input
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MINMAX
REV:0 2005/04
MPW1000 Series
Capacitive Load
Models by Vout Maximum Capacitive Load # For each output 3.3V 10000 5V 10000 12V 1000 15V 1000 {12V # 330 {15V # 330 Unit uF
Input Fuse Selection Guide
12V Input Models 6000mA Slow - Blow Type 24V Input Models 3000mA Slow - Blow Type 48V Input Models 1500mA Slow - Blow Type
Output Voltage Trim
Parameter Trim Up / Down Range Conditions % of nominal output voltage Min. {9.0 Typ. {10.0 Max. {11.0 Unit %
Input Voltage Transient Rating
150 140 130 120 110 100 Vin ( VDC ) 90 80 70 60 50 40 30 20 10 0 10uS 100uS 1mS 10mS 100mS 12VDC Input Models 24VDC Input Models 48VDC Input Models
REV:0 2005/04
MINMAX
4
MPW1000 Series
100 90 Efficiency (%)
100 90 Efficiency (%)
Low Nom Input Voltage (V) High
80 70 60 50
80 70 60 50
Low
Nom Input Voltage (V)
High
Efficiency vs Input Voltage ( Single Output )
Efficiency vs Input Voltage ( Dual Output )
100 90
100 90 Efficiency (%) 80 70 60 50 40
10 20 40 60 80 100
Efficiency (%)
80 70 60 50 40 30 Load Current (%)
30
10
20
40
60
80
100
Load Current (%)
Efficiency vs Output Load ( Single Output )
Efficiency vs Output Load ( Dual Output )
100 80 Output Power (%) Natural convection 60 100LFM 200LFM 400LFM
40
20 0 -40
50 60 70 80 ] 90 100 110
Ambient Temperature
Derating Curve
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MINMAX
REV:0 2005/04
MPW1000 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
Output Voltage Trim
Output voltage trim allows the user to increase or decrease the output voltage set point of a module. The output voltage can be adjusted by placing an external resistor (Radj) between the Trim and +Vout or -Vout terminals. By adjusting Radj, the output voltage can be change by {10% of the nominal output voltage.
+Vin -Vin Enable +Out Trim Down -Out Trim Up Trim 10K Trim Up/Down
DC / DC Converter -Vin -Out
Cin
Peak-to-Peak Output Noise Measurement Test
Use a Cout 1.0uF 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 10K, 1 or 10 Turn trimpot is usually specified for continuous trimming. Trim pin may be safely left floating if it is not used. Connecting the external resistor (Radj-up) between the Trim and -Vout pins increases the output voltage to set the point as defined in the following equation:
Radj-up =
(33*Vout)- (30*Vadj) Vadj - Vout
Connecting the external resistor (Radj-down) between the Trim and +Vout pins decreases the output voltage set point as defined in the following equation:
Radj-down =
(36.667*Vadj) - (33*Vout) Vout-Vadj
Vout : Nominal Output Voltage
+Vin Dual Output DC / DC Converter -Vin +Out Com. Cout -Out Scope Copper Strip Cout Scope Resistive Load
Vadj : Adjusted Output Voltage Units : VDC/ K[
Overcurrent Protection
To provide protection in a fault (output overload) condition, the unit is equipped with internal current limiting circuitry and can endure current limiting for an unlimited duration. At the point of current-limit inception, the unit shifts from voltage control to current control. The unit operates normally once the output current is brought back into its specified range.
Design & Feature Considerations
Remote On/Off
Positive logic remote on/off turns the module on during a logic high voltage on the remote on/off pin, and off during a logic low. To turn the power module on and off, the user must supply a switch to control the voltage between the on/off terminal and the -Vin terminal. The switch can be an open collector or equivalent. A logic low is -1V to 1.0V. A logic high is 2.5V to 100V. The maximum sink current at the on/off terminal (Pin 4) during a logic low is -100 uA. The maximum allowable leakage current of a switch connected to the on/off terminal (Pin 4) at logic hight (2.5V to 100V) is 5uA. REV:0 2005/04
Overvoltage Protection
The output overvoltage clamp consists of control circuitry, which is independent of the primary regulation loop, that monitors the voltage on the output terminals. The control loop of the clamp has a higher voltage set point than the primary loop. This provides a redundant voltage control that reduces the risk of output overvoltage. The OVP level can be found in the output data.
MINMAX
6
MPW1000 Series
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 33uF for the 12V input devices and a 10uF for the 24V and 48V devices.
+ DC Power Source + Cin -Vin -Out +Vin DC / DC Converter +Out 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 105C. The derating curves are determined from measurements obtained in an experimental apparatus.
Position of air velocity probe and thermocouple 15mm / 0.6in
50mm / 2in
Air Flow
DUT
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 4.7uF capacitors at the output.
+ DC Power Source -Vin +Vin Single Output DC / DC Converter -Out +Out
Cout
Load
+ DC Power Source -
+Vin
+Out Dual Output DC / DC Com. Converter Cout Load
-Vin
-Out
Maximum Capacitive Load
The MPW1000 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 330uF maximum capacitive load for dual outputs, 1000uF capacitive load for 12V & 15V outputs and 10000uF capacitive load for 3.3V & 5V outputs. The maximum capacitance can be found in the data sheet.
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MINMAX
REV:0 2005/04
MPW1000 Series
Mechanical Dimensions Connecting Pin Patterns
Single Output
5.0 [0.20] 6.0 [0.24] 9.3[0.37]
Bottom View ( 2.54 mm / 0.1 inch grids )
40.6 [1.60]
10.20 [0.402] 10.20 [0.402] 10.20 [0.402]
5
6
7
8
45.70 [1.801]
Bottom
50.8 [2.00]
Side
Dual Output
1
2
4
5.10 [0.201]
7.6 [0.30]
Tolerance
Millimeters X.X{0.25 X.XX{0.13 {0.05
2.5 [0.10]
Inches X.XX{0.01 X.XXX{0.005 {0.002
Pin
Pin Connections
Pin 1 2 4 5 6 7 8 Single Output +Vin -Vin Remote On/Off No Pin +Vout -Vout Trim Dual Output +Vin -Vin Remote On/Off +Vout Common -Vout Trim
1.00[
0.039]
Physical Characteristics
50.8*40.6*9.3 mm 2.0*1.6*0.37 inches Metal With Non-Conductive Baseplate 48g UL94V-0
Case Size
:
Case Material Weight Flammability
: : :
The MPW1000 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
8

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