MPW1000 Series
25-30W, Wide Input Range, Single & Dual Output DC/DC Converters
Key Features
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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
OVP
OTP
Protection
Protection
2:1
1500
VDC
Wide Range
I/O Isolation
High
Power
Density
data communication equipments, mobile battery driven equipments,
distributed power systems, telecommunication equipments, mixed
More Power
Remote on/off
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,
EMI
output trim function, remote on/off, six-sided shielded case and EN55022
Class A conducted noise compliance minimize design-in time, cost and
EN55022
Low Profile
eliminate the need for external filtering.
Block Diagram
Single Output
+Vin
Dual Output
+Vo
LC
Filter
+Vin
+Vo
LC
Filter
Com.
-Vo
-Vo
-Vin
On/Off
1
OVP
OTP
PWM
OVP
OTP
OVP
OVP
-Vin
Isolation
Ref.Amp
Trim
On/Off
MINMAX
PWM
Isolation
Ref.Amp
Trim
REV:0 2005/04
MPW1000 Series
Model Selection Guide
Model
Number
MPW1021
MPW1022
MPW1023
MPW1024
MPW1026
MPW1027
MPW1031
MPW1032
MPW1033
MPW1034
MPW1036
MPW1037
MPW1041
MPW1042
MPW1043
MPW1044
MPW1046
MPW1047
Input
Voltage
Output
Voltage
VDC
VDC
3.3
5
12
15
{12
{15
3.3
5
12
15
{12
{15
3.3
5
12
15
{12
{15
12
( 9 ~ 18 )
24
( 18 ~ 36 )
48
( 36 ~ 75 )
Output Current
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
Input Current
@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
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
Reflected
Ripple
Current
Over
Voltage
Protection
mA (Typ.)
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
100
50
25
Efficiency
@Max. Load
% (Typ.)
81
84
88
88
88
88
82
85
89
89
89
89
82
85
89
89
89
89
Notes :
Min.
-0.7
-0.7
-0.7
-----
Max.
25
50
100
260
5500
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. 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.
Environmental Specifications
Parameter
Operating Temperature
Operating Temperature
Storage Temperature
Humidity
Cooling
RFI
Conducted EMI
REV:0 2005/04
Conditions
Ambient
Case
Min.
Max.
-40
+50
-40
+105
-50
+125
--95
Free-Air Convection
Six-Sided Shielded, Metal Case
EN55022 Class A
Unit
]
]
]
%
MINMAX
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.
2
MPW1000 Series
Input Specifications
Parameter
Start Voltage
Under Voltage Shutdown
Model
Min.
12V Input Models
8.6
8.8
9
24V Input Models
17
17.5
18
Max.
48V Input Models
34
35
36
12V Input Models
8.1
8.3
8.5
24V Input Models
16
16.5
17
34
48V Input Models
Reverse Polarity Input Current
Short Circuit Input Power
Typ.
All Models
Unit
VDC
32
33
---
---
2
A
---
---
4500
mW
Input Filter
Pi Filter
Output Specifications
Parameter
Conditions
Min.
Typ.
Max.
Unit
---
{0.5
{1.0
%
Dual Output, Balanced Loads
---
{0.5
{2.0
%
Line Regulation
Vin=Min. to Max.
---
{0.1
{0.3
%
Load Regulation
Io=10% to 100%
---
{0.1
{0.5
%
---
55
80
mV P-P
Output Voltage Accuracy
Output Voltage Balance
Ripple & Noise (20MHz)
---
---
100
mV P-P
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
---
---
10
mV rms
Over Power Protection
110
---
160
%
---
150
300
uS
---
{2
{4
%
---
{0.01
{0.02
%/]
Transient Recovery Time
Transient Response Deviation
Over Line, Load & Temp.
25% Load Step Change
Temperature Coefficient
Output Short Circuit
Continuous
General Specifications
Parameter
Conditions
Min.
Typ.
Max.
Unit
Isolation Voltage Rated
60 Seconds
1500
---
---
VDC
Isolation Voltage Test
Flash Tested for 1 Second
1650
---
---
VDC
Isolation Resistance
500VDC
1000
---
---
M[
Isolation Capacitance
100KHz,1V
---
1200
1500
pF
290
330
360
KHz
Switching Frequency
Over Temperature Protection
MTBF
Case Temperature, automatic recovery
107
112
117
]
MIL-HDBK-217F @ 25], Ground Benign
1000
---
---
K Hours
Conditions
Min.
Typ.
Max.
Remote On/Off Control
Parameter
Supply On
2.5 to 100VDC or Open Circuit
Supply Off
-1
Device Standby Input Current
Unit
VDC
---
1
VDC
mA
---
2
5
Control Input Current ( on )
Vin -RC = 5.0V
---
---
5
uA
Control Input Current ( off )
Vin -RC = 0V
---
---
-100
uA
Control Common
3
Referenced to Negative Input
MINMAX
REV:0 2005/04
MPW1000 Series
Capacitive Load
Models by Vout
Maximum Capacitive Load
3.3V
5V
12V
15V
{12V #
{15V #
Unit
10000
10000
1000
1000
330
330
uF
# For each output
Input Fuse Selection Guide
12V Input Models
6000mA Slow - Blow Type
24V Input Models
48V Input Models
3000mA Slow - Blow Type
1500mA Slow - Blow Type
Output Voltage Trim
Parameter
Trim Up / Down Range
Conditions
Min.
Typ.
Max.
Unit
% of nominal output voltage
{9.0
{10.0
{11.0
%
Input Voltage Transient Rating
150
140
130
120
48VDC Input Models
110
Vin ( VDC )
100
90
80
70
24VDC Input Models
60
50
12VDC Input Models
40
30
20
10
0
10uS
REV:0 2005/04
100uS
1mS
MINMAX
10mS
100mS
4
MPW1000 Series
90
90
Efficiency (%)
100
Efficiency (%)
100
80
70
80
70
60
60
50
Low
Nom
50
High
Low
Nom
Efficiency vs Input Voltage ( Dual Output )
100
100
90
90
80
80
Efficiency (%)
Efficiency (%)
Efficiency vs Input Voltage ( Single Output )
70
60
70
60
50
50
40
40
30
10
20
40
High
Input Voltage (V)
Input Voltage (V)
60
80
100
30
10
20
40
60
80
100
Load Current (%)
Load Current (%)
Efficiency vs Output Load ( Single Output )
Efficiency vs Output Load ( Dual Output )
100
400LFM
Output Power (%)
80
Natural
convection
60
100LFM
200LFM
40
20
0
〜
-40
50
60
70
90
80
Ambient Temperature
100
110
]
Derating Curve
5
MINMAX
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MPW1000 Series
Test Configurations
Output Voltage Trim
Input Reflected-Ripple Current Test Setup
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.
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.
+Vin
+Out
-Vin
-Out
Trim Down
To Oscilloscope
+
+
Battery
+Vin
Lin
DC / DC
Converter
Current
Probe
Cin
+Out
-Vin
Trim Up
Enable
Load
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.
+Out
Single Output
DC / DC
Converter
-Vin
Scope
(33*Vout)- (30*Vadj)
Vadj - Vout
Radj-up =
Connecting the external resistor (Radj-down) between the
Trim and +Vout pins decreases the output voltage set point as
defined in the following equation:
Copper Strip
Cout
Trim
Up/Down
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:
-Out
Peak-to-Peak Output Noise Measurement Test
+Vin
Trim
10K
Resistive
Load
Radj-down =
-Out
(36.667*Vadj) - (33*Vout)
Vout-Vadj
Vout : Nominal Output Voltage
+Vin
+Out
Dual Output
DC / DC
Converter
Com.
-Vin
-Out
Vadj : Adjusted Output Voltage
Copper Strip
Cout
Scope
Cout
Scope
Units : VDC/ K[
Resistive
Load
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
Thermal Considerations
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.
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 105°C.
The derating curves are determined from measurements
obtained in an experimental apparatus.
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.
Position of air velocity
probe and thermocouple
15mm / 0.6in
+
DC Power
Source
+Vin
+
50mm / 2in
Air Flow
DUT
+Out
DC / DC
Converter
Load
Cin
-
-Vin
-Out
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.
+
+Vin
+Out
Single Output
DC / DC
Converter
DC Power
Source
Cout
-
-Vin
-Out
+
+Vin
+Out
Dual Output
DC / DC Com.
Converter
DC Power
Source
-
-Vin
-Out
Load
Cout
Load
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.
7
MINMAX
REV:0 2005/04
MPW1000 Series
Mechanical Dimensions
Connecting Pin Patterns
Bottom View ( 2.54 mm / 0.1 inch grids )
Single Output
40.6 [1.60]
5.0 [0.20]
10.20 [0.402] 10.20 [0.402] 10.20 [0.402]
7
9.3[0.37]
8
Side
Dual Output
1.00[
0.039]
Bottom
50.8 [2.00]
6
45.70 [1.801]
5
6.0 [0.24]
5.10 [0.201]
Tolerance
Pin
2
4
7.6 [0.30]
2.5 [0.10]
1
Millimeters
Inches
X.X{0.25
X.XX{0.01
X.XX{0.13
{0.05
X.XXX{0.005
{0.002
Pin Connections
Physical Characteristics
Pin
Single Output
Dual Output
1
+Vin
+Vin
2
-Vin
-Vin
4
Remote On/Off
Remote On/Off
5
No Pin
+Vout
6
+Vout
Common
7
-Vout
-Vout
8
Trim
Trim
50.8*40.6*9.3 mm
Case Size
:
Case Material
:
Metal With Non-Conductive Baseplate
Weight
:
48g
Flammability
:
UL94V-0
2.0*1.6*0.37 inches
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