®
MSCW01 SERIES
DC/DC CONVERTER 1W,
SMD Package
FEATURES
►Ultra
compact SMD Package
►Wide
2:1 lnput Range
►Fully
regulated Outputs
►Low
Ripple and Noise
►Operating
Temp. Range -40°C to +85°C
►I/O-isolation
Voltage 1500VDC
►Continuous
Short-circuit Protection
►Remote
On/Off Control
►Qualified
for Lead-free Reflow Process
►CSA/UL/IEC/EN
60950-1 (Approval pending)
►
3 Years Product Warranty
PRODUCT OVERVIEW
The MSCW01 series is a family of compact 1W dc/dc-converters with wide 2:1 input voltage ranges and tightly regulated output voltages.
They work with high efficiency over the full load range and come with a remote On/Off control input.
High efficiency to 82% allows operating temperatures up to +75°C without power derating. The very small footprint of these converters make them an ideal
solution for many space critical applications in communication equipment, instrumentation and many other battery operated applications.
Model Selection Guide
Model
Number
Input
Voltage
(Range)
VDC
MSCW01-05S05
MSCW01-05S12
MSCW01-05S15
MSCW01-05D12
MSCW01-05D15
MSCW01-12S05
MSCW01-12S12
MSCW01-12S15
MSCW01-12D12
MSCW01-12D15
MSCW01-24S05
MSCW01-24S12
MSCW01-24S15
MSCW01-24D12
MSCW01-24D15
MSCW01-48S05
MSCW01-48S12
MSCW01-48S15
MSCW01-48D12
MSCW01-48D15
5
(4.5 ~ 9)
VDC
5
12
15
±12
±15
5
12
15
±12
±15
5
12
15
±12
±15
5
12
15
±12
±15
Output
Voltage
Max.
mA
200
83
67
±42
±33
200
83
67
±42
±33
200
83
67
±42
±33
200
83
67
±42
±33
@Max. Load
mA(typ.)
256
252
248
255
248
105
105
102
104
103
53
51
51
51
50
26
26
26
26
25
@No Load
mA(typ.)
μF
1680
820
680
470#
330#
1680
820
680
470#
330#
1680
820
680
470#
330#
1680
820
680
470#
330#
# For each output
Output Current
Input Current
Max. capacitive
Load
Reflected
Ripple
current
mA (typ.)
Efficiency
(typ.)
@Max. Load
%
78
79
81
79
80
79
79
82
81
80
79
82
82
82
82
79
80
80
81
81
40
80
12
(9 ~ 18)
20
40
24
(18 ~ 36)
10
30
48
(36 ~ 75)
7
20
E-mail:sales@minmax.com.tw
Tel:886-6-2923150
2012/10/18 REV:0
Page 1 of 4
®
MSCW01 SERIES
DC/DC CONVERTER 1W,
SMD Package
Input Specifications
Parameter
Model
5V Input Models
Input Surge Voltage (1 sec. max.)
12V Input Models
24V Input Models
48V Input Models
5V Input Models
Start-Up Threshold Voltage
12V Input Models
24V Input Models
48V Input Models
Internal Filter Type
All Models
Min.
-0.7
-0.7
-0.7
-0.7
---
---
---
---
Typ.
---
---
---
---
---
---
---
---
Capacitor
Max.
15
25
50
100
4.5
9
18
36
VDC
Unit
Output Specifications
Parameter
Output Voltage Setting Accuracy
Line Regulation
Conditions
At 50% Load and Nominal Vin
Vin=Min. to Max.
Single Output
Min. Load to Full Load
Dual Output
Single Output
Io=10% to 90%
Dual Output
Min.
---
---
---
---
---
---
No minimum Load Requirement
---
---
---
Continuous
Typ.
---
---
---
---
---
---
30
250
---
Max.
±1.0
±0.2
±1.0
±1.0
±0.5
±0.8
---
---
±0.02
Unit
%Vnom.
%
%
%
%
%
mV
P-P
μsec
%/℃
Load Regulation
Min.Load
Ripple & Noise (20MHz)
Transient Recovery Time
Temperature Coefficient
Short Circuit Protection
25% Load Step Change
General Specifications
Parameter
I/O Isolation Voltage (rated)
I/O Isolation Resistance
I/O Isolation Capacitance
Switching Frequency
MTBF(calculated)
Safety Approvals(pending)
MIL-HDBK-217F@25℃, Ground Benign
Conditions
60 Seconds
500 VDC
100KHz, 1V
Min.
1500
1000
---
---
2,800,000
Typ.
---
---
---
220
---
Max.
---
---
50
---
---
Unit
VDC
MΩ
pF
KHz
Hours
CSA 60950-1 recognition,IEC/EN 60950-1(CB-scheme)
Input Fuse
5V Input Models
500mA Slow-Blow Type
12V Input Models
250mA Slow-Blow Type
24V Input Models
120mA Slow-Blow Type
48V Input Models
60mA Slow-Blow Type
Remote On/Off Control
Parameter
Converter On
Converter Off
Standby Input Current
Supply Off & Nominal Vin
Conditions
Min.
Open or high impedance
2~4mA current applied via 1Kohm resistor
---
2.5
---
mA
Typ.
Max.
Unit
Environmental Specifications
Parameter
Operating Ambient Temperature Range (See Power Derating Curve)
Case Temperature
Storage Temperature
Humidity (non condensing)
Lead Temperature (1.5mm from case for 10Sec.)
Conditions
Natural Convection
Min.
-40
---
-55
---
---
Max.
+85
+95
+125
95
260
Unit
℃
℃
℃
% rel. H
℃
E-mail:sales@minmax.com.tw
Tel:886-6-2923150
2012/10/17 REV:0
Page 2 of 4
®
MSCW01 SERIES
DC/DC CONVERTER 1W,
SMD Package
Power Derating Curve
Notes
1
2
3
4
5
6
Specifications typical at Ta=+25℃, resistive load, nominal input voltage, rated output current unless otherwise noted.
Ripple & Noise measurement bandwidth is 0-20 MHz.
All DC/DC converters should be externally fused at the front end for protection.
Other input and output voltage may be available, please contact factory.
That “natural convection” is about 20LFM but is not equal to still air (0 LFM).
Specifications are subject to change without notice.
Package Specifications
Mechanical Dimensions
18.9 [0.74]
1.8 [0.1]
12.7 [0.5]
2.54
[0.1]
Connecting Pin Patterns
15.2 [0.60]
2.54 [0.10]
14
9
8
13.7 [0.54]
17.2 [0.68]
18.1 [0.71]
1
2
6
7
1.00 [0.04]
2.1 [0.08]
2.54 [0.10]
1.6 [0.06]
8.45 [0.33]
8.7 [0.34]
S SEATING
PLANE
0.25 [0.01]
1.1 [0.04]
15.0 [0.6]
0~
4
►
All
0.15 S
dimensions in mm (inches)
(X.XX±0.02)
X.XX±0.25 ( X.XXX±0.01)
►
Tolerance: X.X±0.5
►
Pins
±0.05(±0.002)
Pin Connections
Pin
Single Output
1
2
6
7
8
9
14
-Vin
Remote On/Off
NC
NC
+Vout
-Vout
+Vin
NC: No Connection
Dual Output
-Vin
Remote On/Off
Common
-Vout
+Vout
Common
+Vin
Physical Characteristics
Case Size
Case Material
Pin Material
Weight
:
:
:
:
18.9x13.7x8.45mm (0.74x0.54x0.33 inches)
Non-Conductive Black Plastic (flammability to UL 94V-0 rated)
Phosphor bronze
4.5g
E-mail:sales@minmax.com.tw
Tel:886-6-2923150
2012/10/17 REV:0
Page 3 of 4
®
Test Setup
MSCW01 SERIES
DC/DC CONVERTER 1W,
SMD Package
Input Reflected-Ripple Current Test Setup
Input reflected-ripple current is measured with a inductor Lin (4.7μH) and Cin (220μF, ESR < 1.0Ω 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
+Vin
Current
Probe
+Out
Load
DC / DC
Converter
-Vin
-Out
Cin
Peak-to-Peak Output Noise Measurement Test
Use a Cout 0.47μF 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
Copper Strip
Resistive
Scope
Load
+Vin
Dual Output
DC / DC
Converter
-Vin
+Out
Com.
-Out
Copper Strip
Cout
Copper Strip
Cout
Copper Strip
Scope
Scope
Resistive
Load
Technical Notes
Remote On/Off
Negative logic remote on/off turns the module off during a logic high voltage on the remote on/off pin, and on 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 high is 2~4mA current applied via 1Kohm resistor. A logic low is open circuit or high impedance.
Maximum Capacitive Load
The MSCW01 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. The maximum capacitance can be found in the data sheet.
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.
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 commended to use a good quality low Equivalent Series Resistance (ESR < 1.0Ω
at 100 KHz) capacitor of a 8.2μF for the 5V input device, a 3.3μF for the 12V input devices and a 1.5μF for the 24V and 48V devices.
+
DC Power
Source
-
+
Cin
-Vin
-Out
+Vin
DC / DC
Converter
+Out
Load
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 3.3μF capacitors at the output.
+
DC Power
Source
-
-Vin
+Vin
Single Output
DC / DC
Converter
-Out
+Out
+
DC Power
Source
-
+Vin
+Out
Dual Output
DC / DC
Com.
Converter
Cout
Cout
Load
Load
Cout
Load
-Vin
-Out
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 95℃. The derating curves are determined from
measurements obtained in a test setup.
Position of air velocity
probe and thermocouple
15mm / 0.6in
50mm / 2in
Air Flow
DUT
18, Sin Sin Road, An-Ping Industrial District, Tainan 702, Taiwan
Tel: 886-6-2923150 Fax: 886-6-2923149 E-mail:
sales@minmax.com.tw
Minmax Technology Co., Ltd.
2012/10/17 REV:0
Page 4 of 4
Microcontroller MCU
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