MSIW2000 Series
3W, Wide Input Range SMD, Single & Dual Output DC/DC Converters
Key Features
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4:1
1500
VDC
Wide Range
I/O Isolation
EMI
Remote on/off
EN55022
SMD
Efficiency up to 83%
1500VDC Isolation
MTBF > 1,000,000 Hours
4:1 Wide Input Range
Short Circuit Protection
Temperature Performance -40] to +71]
Industry Standard Pinout
UL 94V-0 Package Material
Internal SMD Construction
Complies with EN55022 Class A
Minmax's MSIW2000 3W DC/DC's are in "gull-wing" SMT package. The series consists of 14 models that operate over input voltage
ranges of 9-36VDC and 18-75VDC which provide precisely regulated output voltages of 3.3V, 5V, 12V, 15V, {5V, {12V and {15VDC.
The -40] to +71] operating temperature range makes it ideal for 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.
The modules have a maximum power rating of 3W and a typical full-load efficiency of 83%, continuous short circuit, built-in filtering for
both input and output minimize the need for external filtering.
The MSIW2000 units are available in tape and reel package.
Absolute Maximum Ratings
Environmental Specifications
Parameter
24VDC Input Models
Input Surge Voltage
( 1000 mS )
48VDC Input Models
Lead Temperature (1.5mm from case for 10 Sec.)
Min.
-0.7
-0.7
---
Max.
50
100
260
Unit
VDC
VDC
]
Parameter
Operating Temperature
Operating Temperature
Storage Temperature
Internal Power Dissipation
---
2,500
mW
Humidity
Cooling
Conducted EMI
Exceeding the absolute maximum ratings of the unit could cause damage.
These are not continuous operating ratings.
Conditions
Ambient
Case
Min.
-40
-40
-40
Max.
+71
+90
125
--95
Free-Air Convection
EN55022 Class A
Unit
]
]
]
%
Leadfree Reflow Solder Process as per IPC/JEDEC
J-STD-020C peak temp. 245C/10 sec.
1
MINMAX
REV:4 2008/10
MSIW2000 Series
Model Selection Guide
Model
Number
MSIW2021
MSIW2022
MSIW2023
MSIW2024
MSIW2025
MSIW2026
MSIW2027
MSIW2031
MSIW2032
MSIW2033
MSIW2034
MSIW2035
MSIW2036
MSIW2037
Input
Voltage
Output
Voltage
VDC
VDC
3.3
5
12
15
{5
{12
{15
3.3
5
12
15
{5
{12
{15
24
( 9 ~ 36 )
48
( 18 ~ 75 )
Output Current
Max.
mA
750
600
250
200
{300
{125
{100
750
600
250
200
{300
{125
{100
Input Current
Min.
mA
75
60
25
20
{30
{12.5
{10
75
60
25
20
{30
{12.5
{10
@Max. Load
mA (Typ.)
138
158
154
154
160
154
154
68
78
75
75
78
75
75
Reflected
Ripple
Current
@No Load
mA (Typ.)
mA (Typ.)
20
10
10
5
Efficiency
@Max. Load
% (Typ.)
75
79
81
81
78
81
81
76
80
83
83
80
83
83
Capacitive Load
Models by Vout
Maximum Capacitive Load
3.3V
5V
12V
15V
{5V #
{12V #
{15V #
Unit
3000
3000
3000
3000
180
180
180
uF
# For each output
Input Fuse Selection Guide
24V Input Models
48V Input Models
1000mA Slow - Blow Type
500mA Slow - Blow Type
Input Specifications
Parameter
Start Voltage
Model
Min.
Typ.
Max.
24V Input Models
4.5
6
8.5
48V Input Models
8.5
12
17
Under Voltage Shutdown
24V Input Models
---
---
8
48V Input Models
---
---
16
---
---
1
A
---
---
2000
mW
Reverse Polarity Input Current
Short Circuit Input Power
All Models
Input Filter
REV:4 2008/10
Unit
VDC
Pi Filter
MINMAX
2
MSIW2000 Series
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.
---
{0.2
{0.5
%
Load Regulation
Io=10% to 100%
---
{0.3
{1.0
%
---
50
75
mV P-P
Output Voltage Accuracy
Output Voltage Balance
Ripple & Noise (20MHz)
---
---
100
mV P-P
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
---
---
15
mV rms
Over Power Protection
120
---
---
%
Transient Recovery Time
---
150
500
uS
---
{2
{6
%
---
{0.01
{0.02
%/]
Transient Response Deviation
Over Line, Load & Temp.
25% Load Step Change
Temperature Coefficient
Continuous
Output Short Circuit
General Specifications
Parameter
Conditions
Min.
Typ.
Max.
Unit
Isolation Voltage Rated
60 Seconds
1500
---
---
VDC
Flash Tested for 1 Second
1650
---
---
VDC
Isolation Resistance
Isolation Voltage Test
500VDC
1000
---
---
M[
Isolation Capacitance
100KHz,1V
---
350
500
pF
---
300
---
KHz
MIL-HDBK-217F @ 25], Ground Benign
1000
---
---
K Hours
Conditions
Min.
Typ.
Max.
Unit
Switching Frequency
MTBF
Remote On/Off Control
Parameter
Supply On
2.5 to 5.5 VDC or Open Circuit
Supply off
-0.7
---
0.8
VDC
Device Standby Input Current
---
---
5
mA
Control Input Current ( on )
Vin=Min. to Max.
---
---
-400
uA
Control Input Current ( off )
Vin=Min. to Max.
---
---
-400
uA
Control Common
Referenced to Negative Input
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.
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.
9. It is not recommended to use water-washing process on SMT units.
3
MINMAX
REV:4 2008/10
MSIW2000 Series
Block Diagram
Single Output
+Vin
Dual Output
+Vo
LC
Filter
+Vin
+Vo
LC
Filter
Com.
-Vo
PFM
-Vin
Isolation
Ref.Amp
-Vo
-Vin
PFM
Isolation
Ref.Amp
Input Voltage Transient Rating
150
140
130
48VDC Input Models
120
110
Vin ( VDC )
100
90
80
70
24VDC Input Models
60
50
40
30
20
10
0
10uS
REV:4 2008/10
100uS
1mS
MINMAX
10mS
100mS
4
MSIW2000 Series
90
90
Efficiency (%)
100
Efficiency (%)
100
80
70
80
70
60
60
50
50
Nom
Low
High
Nom
Low
Input Voltage (V)
Efficiency vs Input Voltage ( Single Output )
Efficiency vs Input Voltage ( Dual Output )
90
90
80
80
70
70
Efficiency (%)
Efficiency (%)
High
Input Voltage (V)
60
50
60
50
40
40
30
30
20
20
10
20
40
60
80
100
Load Current(%)
10
20
40
60
80
100
Load Current(%)
Efficiency vs Output Load ( Single Output )
Efficiency vs Output Load ( Dual Output )
100
100LFM
400LFM
Natural
convection
200LFM
Output Power (%)
80
60
40
20
0
～
-40
50
60
70
90
80
Ambient Temperature
100
110
]
Derating Curve
5
MINMAX
REV:4 2008/10
MSIW2000 Series
Test Configurations
Maximum Capacitive Load
Input Reflected-Ripple Current Test Setup
The MSIW2000 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 180uF
maximum capacitive load for dual outputs and 3000uF
capacitive load for single outputs.
The maximum capacitance can be found in the data sheet.
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
+Vin
Lin
DC / DC
Converter
Current
Probe
Cin
+Out
-Vin
Overcurrent Protection
Load
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.
-Out
Peak-to-Peak Output Noise Measurement Test
Use a Cout 0.47uF 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
+Out
Single Output
DC / DC
Converter
Copper Strip
Cout
-Vin
-Out
+Vin
+Out
Dual Output
DC / DC
Converter
Com.
-Vin
-Out
Scope
Resistive
Load
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 4.7uF for the 24V input devices and a
2.2uF for the 48V devices.
Copper Strip
Cout
Scope
Cout
Scope
Resistive
Load
+
DC Power
Source
-
Design & Feature Considerations
+Vin
+
+Out
DC / DC
Converter
Load
Cin
-Vin
-Out
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 -0.7V to 0.8V.
A logic high is 2.5V to 5.5V.
The maximum sink current of the switch at on/off terminal
during a logic low is -300 uA.
The maximum sink current of the switch at on/off terminal
during a logic high is -200uA or open.
REV:4 2008/10
MINMAX
6
MSIW2000 Series
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 3.3uF
capacitors at the output.
+
+Vin
DC Power
Source
-
+
-Vin
+Vin
Cout
Load
-Out
+Out
Dual Output
Com.
DC / DC
Converter
DC Power
Source
-
+Out
Single Output
DC / DC
Converter
-Vin
-Out
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 90° C.
The derating curves are determined from measurements
obtained in an experimental apparatus.
Position of air velocity
probe and thermocouple
15mm / 0.6in
7
50mm / 2in
Air Flow
DUT
MINMAX
REV:4 2008/10
MSIW2000 Series
Mechanical Dimensions
Connecting Pin Patterns
Top View ( 2.54 mm / 0.1 inch grids )
17.82[0.70]
27.94mm
15
14
13
10
11
12
Top
1
2
2.8mm
3
18.8[0.74]
22
16.1[0.63]
23
14.8[0.58]
24
20.0mm
2.54[0.10]
1.0[0.04]
32.3[1.27]
10.2[0.40]
S SEATING
PLANE
2.16[0.085]
Tolerance
Pin
2.54mm
17.78mm
1.0mm
0 ~4
0.5[0.02]
Side
0.15
Millimeters
X.X{0.25
Inches
X.XX{0.01
X.XX{0.13
X.XXX{0.005
{0.05
{0.002
Pin Connections
Physical Characteristics
Pin
Single Output
Dual Output
1
-Vin
-Vin
2
-Vin
-Vin
3
Remote On/Off
Remote On/Off
10
NC
Common
11
NC
NC
12
NC
-Vout
13
+Vout
+Vout
14
NC
NC
15
-Vout
Common
22
NC
NC
23
+Vin
+Vin
24
+Vin
+Vin
32.3*14.8*10.2 mm
Case Size
:
Case Material
:
Non-Conductive Black Plastic
Weight
:
8.8g
Flammability
:
UL94V-0
1.27*0.58*0.40 inches
NC: No Connection
REV:4 2008/10
MINMAX
8