MIW1500 Series
3W, Wide Input Range DIP, Single & Dual Output DC/DC Converters
Key Features
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Efficiency up to 82%
1500VDC Isolation
MTBF > 1,000,000 Hours
2:1 Wide Input Range
Low Cost
Complies with EN55022 Class A
Temperature Performance -25] to +71]
UL 94V-0 Package Material
Internal SMD Construction
Industry Standard Pinout
Minmax's MIW1500-Series power modules operate over input
voltage ranges of 4.5-9VDC, 9-18VDC and 18-36VDC which
$
provide precisely regulated output voltages of 5V, 12V, {12V and
{15VDC.
The -25] to +71] operating temperature range makes it ideal
Low Cost
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
1500
VDC
systems.
The modules have a maximum power rating of 3W and a typical
EMI
2:1
EN55022
Wide Range
full-load efficiency of 82%, continuous short circuit, 45mA output
ripple, EN55022 Class A conducted noise compliance minimize
I/O Isolation
design-in time, cost and eliminate the need for external filtering.
Block Diagram
Single Output
+Vin
Dual Output
+Vo
LC
Filter
+Vin
+Vo
LC
Filter
Com.
-Vo
-Vin
1
PFM
Isolation
Ref.Amp
-Vo
-Vin
MINMAX
PFM
Isolation
Ref.Amp
REV:0 2005/04
MIW1500 Series
Model Selection Guide
Model
Number
MIW1512
MIW1513
MIW1516
MIW1517
MIW1522
MIW1523
MIW1526
MIW1527
MIW1532
MIW1533
MIW1536
MIW1537
Input
Voltage
Output
Voltage
VDC
VDC
5
12
{12
{15
5
12
{12
{15
5
12
{12
{15
5
( 4.5 ~ 9 )
12
( 9 ~ 18 )
24
( 18 ~ 36 )
Output Current
Max.
mA
600
250
{125
{100
600
250
{125
{100
600
250
{125
{100
Input Current
Min.
mA
60
25
{12.5
{10
60
25
{12.5
{10
60
25
{12.5
{10
@Max. Load
mA (Typ.)
833
789
779
779
329
313
313
313
160
152
152
152
Reflected
Ripple
Current
@No Load
mA (Typ.)
mA (Typ.)
40
100
20
30
5
15
Efficiency
@Max. Load
% (Typ.)
72
76
77
77
76
80
80
80
78
82
82
82
Notes :
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.
11
25
50
260
2,500
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.
5. Operation under no-load conditions will not
damage these modules; however, they may not
meet all specifications listed.
Environmental Specifications
Parameter
Operating Temperature
Operating Temperature
Storage Temperature
Humidity
Cooling
Conducted EMI
REV:0 2005/04
Conditions
Ambient
Case
Min.
Max.
-25
+71
-25
+90
-40
+125
--95
Free-Air Convection
EN55022 Class A
Unit
]
]
]
%
MINMAX
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
MIW1500 Series
Input Specifications
Parameter
Start Voltage
Under Voltage Shutdown
Model
Min.
Typ.
Max.
5V Input Models
3.5
4
4.5
12V Input Models
4.5
7
9
24V Input Models
8
12
18
5V Input Models
---
3.5
4
12V Input Models
---
6.5
8.5
24V Input Models
---
11
17
---
---
1
A
---
1000
2000
mW
Reverse Polarity Input Current
Short Circuit Input Power
Unit
All Models
Input Filter
VDC
Pi Filter
Output Specifications
Parameter
Conditions
Min.
Typ.
Max.
Unit
---
{0.5
{2.0
%
Dual Output, Balanced Loads
---
{0.5
{2.0
%
Line Regulation
Vin=Min. to Max.
---
{0.2
{0.5
%
Load Regulation
Io=10% to 100%
---
{0.2
{0.5
%
---
45
60
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
---
---
%
---
300
500
uS
---
{3
{6
%
---
{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
Switching Frequency
MTBF
MIL-HDBK-217F @ 25], Ground Benign
---
---
500
pF
---
300
---
KHz
1000
---
---
K Hours
Capacitive Load
Models by Vout
Maximum Capacitive Load
5V
12V
{12V #
{15V #
Unit
470
470
220
220
uF
# For each output
3
MINMAX
REV:0 2005/04
MIW1500 Series
Input Fuse Selection Guide
5V Input Models
12V Input Models
1500mA Slow - Blow Type
700mA Slow - Blow Type
24V Input Models
350mA Slow - Blow Type
Input Voltage Transient Rating
150
140
130
120
110
Vin ( VDC )
100
90
80
24VDC Input Models
70
60
50
40
12VDC Input Models
30
20
5VDC Input Models
10
0
10uS
REV:0 2005/04
100uS
1mS
MINMAX
10mS
100mS
4
MIW1500 Series
100
100
90
Efficiency (%)
Efficiency (%)
90
80
70
80
70
60
60
50
Low
Nom
High
50
Low
Input Voltage (V)
Nom
High
Input Voltage (V)
Efficiency vs Input Voltage ( Dual Output )
90
90
80
80
70
70
Efficiency (%)
Efficiency (%)
Efficiency vs Input Voltage ( Single Output )
60
50
60
50
40
40
30
30
20
20
10
20
40
60
80
100
10
Load Current (%)
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
〜
-25
50
60
70
90
80
Ambient Temperature
100
110
]
Derating Curve
5
MINMAX
REV:0 2005/04
MIW1500 Series
Test Configurations
Overcurrent Protection
Input Reflected-Ripple Current Test Setup
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.
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
Current
Probe
Cin
-Vin
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.
+Out
DC / DC
Converter
Load
-Out
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 8.2uF for the 5V input devices, a 3.3uF for
the 12V input devices and a 1.5uF for the 24V devices.
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
-Vin
+Vin
Input Source Impedance
+
DC Power
Source
Copper Strip
Cout
+Vin
+
DC / DC
Converter
Load
Cin
-
Scope
+Out
-Vin
-Out
Resistive
Load
-Out
Output Ripple Reduction
+Out
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.
Dual Output
DC / DC
Converter
Com.
-Vin
-Out
Copper Strip
Cout
Scope
Cout
Scope
Resistive
Load
+
+Vin
DC Power
Source
Design & Feature Considerations
+Out
Single Output
DC / DC
Converter
-
-Vin
+
+Vin
Cout
Load
-Out
Maximum Capacitive Load
The MIW1500 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 220uF
maximum capacitive load for dual outputs and 470uF
capacitive load for single outputs.
The maximum capacitance can be found in the data sheet.
REV:0 2005/04
DC Power
Source
MINMAX
-
+Out
Dual Output
DC / DC Com.
Converter
-Vin
-Out
Cout
Load
6
MIW1500 Series
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:0 2005/04
MIW1500 Series
Mechanical Dimensions
Connecting Pin Patterns
Top View ( 2.54 mm / 0.1 inch grids )
Single Output
10.2 [0.40]
Side
2.5 [0.10]
0.50 [0.020]
2 3
9
11
16
14
Bottom
23 22
Tolerance
Pin
Millimeters
Inches
X.X{0.25
X.XX{0.01
X.XX{0.13
{0.05
X.XXX{0.005
{0.002
Dual Output
20.3 [0.80]
4.5 [0.18]
2.54 [0.100]
15.22 [0.600]
4.5 [0.18]
31.8 [1.25]
Pin Connections
Physical Characteristics
Pin
Single Output
Dual Output
2
-Vin
-Vin
3
-Vin
-Vin
9
No Pin
Common
11
NC
-Vout
14
+Vout
+Vout
16
-Vout
Common
22
+Vin
+Vin
23
+Vin
+Vin
31.8*20.3*10.2 mm
Case Size
:
Case Material
:
Non-Conductive Black Plastic
Weight
:
12.4g
Flammability
:
UL94V-0
1.25*0.80*0.40 inches
NC: No Connection
The MIW1500 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