Total Power MKW2541 Wide 2:1 input range Datasheet

FEATURES
►2”x 1”x 0.4” Metal Package
►Wide 2:1 Input Range
►High Efficiency up to 86%
►Operating Temp. Range –40°C to +80°C
►Short Circuit Protection
►I/O-isolation 1500 VDC
►Input Filter to meet EN55022,class A (Option)
►Heatsink (Option)
►Cost optimized Design
►3 Years Product Warranty
PRODUCT OVERVIEW
The MKW2500 series is a range of isolated 15W DC/DC converter modules featuring fully regulated output voltages and wide 2:1 input voltage ranges.
The product comes in a 2”x 1”x 0.4” metal package with industry standard pinout.An excellent efficiency allows an operating temperature range of –40°
C to +80°C. They feature as option input filter to meet EN55022,class A and remote On/Off input.
These DC/DC converters offer an economical solution for many cost critical applications in battery-powered equipment and instrumentation.
Model Selection Guide
Model
Input
Output
Output
Number
Voltage
Voltage
Current
(Range)
VDC
MKW2521
MKW2522
MKW2529
MKW2523
MKW2524
MKW2526
MKW3267
MKW2531
MKW2532
MKW2539
MKW2533
MKW2534
MKW2536
MKW2537
MKW2541
MKW2542
MKW2549
MKW2543
MKW2544
MKW2546
MKW2547
12
(9 ~ 18)
24
(18 ~ 36)
48
(36 ~ 75)
VDC
3.3
5
5.1
12
15
±12
±15
3.3
5
5.1
12
15
±12
±15
3.3
5
5.1
12
15
±12
±15
Input Current
Reflected
Max. capacitive
Ripple
Load
Max.
Min.
@Max. Load
@No Load
Current
mA
3000
3000
3000
1250
1000
±625
±500
3000
3000
3000
1250
1000
±625
±500
3000
3000
3000
1250
1000
±625
±500
mA
300
300
300
125
100
±62.5
±50
300
300
300
125
100
±62.5
±50
300
300
300
125
100
±62.5
±50
mA(typ.)
1057
1524
1574
1452
1452
1452
1452
528
762
787
726
726
726
726
264
381
393
363
363
363
363
mA(typ.)
mA(typ.)
30
50
uF
220#
470
40
220#
470
10
30
220#
# For each output
In
Total Power International,
Inc
Toll Free: 877-646-0900
(typ.)
@Max. Load
470
20
Efficiency
www.total-power.com
%
78
82
81
86
86
86
86
78
82
81
86
86
86
86
78
82
81
86
86
86
86
MKW2500 SERIES
Total Power International, Inc.
Tota
DC/DC CONVERTER 15W
Input Specifications
Parameter
Input Surge Voltage (1 sec. max.)
Start-Up Voltage
Under Voltage Shutdown
Reverse Polarity Input Current
Short Circuit Input Power
Internal Power Dissipation
Conducted EMI (with suffix A only)
Model
12V Input Models
24V Input Models
48V Input Models
12V Input Models
24V Input Models
48V Input Models
12V Input Models
24V Input Models
48V Input Models
Min.
-0.7
-0.7
-0.7
Typ.
Max.
Unit
25
--50
--100
--9
8
8.5
VDC
15
17
18
30
33
36
7
8
8.5
13
15
17
25
29
34
----1
A
----3500
mW
----5000
mW
Compliance to EN 55022,class A and FCC part 15,class A
All Models
Output Specifications
Parameter
Output Voltage Accuracy
Output Voltage Balance
Line Regulation
Load Regulation
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Transient Recovery Time
Transient Response Deviation
Temperature Coefficient
Over Load Protection
Short Circuit Protection
Conditions
Dual Output, Balanced Loads
Vin=Min. to Max.
Io=10% to 100%
Over Line, Load & Temp.
25% Load Step Change
Foldback
Min.
--------------------120
Typ.
±1.0
±0.5
±0.1
±0.5
55
----300
±2
±0.01
150
Max.
±2.0
±2.0
±0.5
±1.0
80
100
15
500
±4
±0.02
---
Unit
%
%
%
%
mV P-P
mV P-P
mV rms
uS
%
%/℃
%
Continuous
General Specifications
Parameter
Conditions
Min.
Typ.
Max.
Unit
60 Seconds
1500
---
---
VDC
I/O Isolation Resistance
500 VDC
1000
---
---
MΩ
I/O Isolation Capacitance
100KHz, 1V
---
1200
1500
pF
290
330
400
KHz
700,000
---
---
Hours
I/O Isolation Voltage (rated)
Switching Frequency
MTBF (calculated)
MIL-HDBK-217F@25℃, Ground Benign
Safety Approvals
UL/cUL 60950-1 recognition(CSA certificate), IEC/EN 60950-1(CB-scheme)
Input Fuse
12V Input Models
24V Input Models
48V Input Models
2500mA Slow-Blow Type
1250mA Slow-Blow Type
750mA Slow-Blow Type
Remote On/Off Control
Parameter
Conditions
Min.
Converter On
2.5V ~ 5.5V or Open Circuit
Converter Off
-0.7V ~ 0.8V or Short Circuit
Typ.
Max.
Unit
Control Input Current (on)
Vctrl = 5.0V
---
---
50
uA
Control Input Current (off)
Vctrl = 0V
---
---
-1
mA
---
10
mA
Control Common
Standby Input Current
In
Total Power International,
Inc
Referenced to Negative Input
Nominal Vin
Toll Free: 877-646-0900
---
www.total-power.com
MKW2500 SERIES
Tota
Total Power International, Inc.
DC/DC CONVERTER 15W
Environmental Specifications
Parameter
Conditions
Min.
Max.
Ambient
-40
+80
℃
Case Temperature
---
+100
℃
Storage Temperature Range
-50
+125
℃
Humidity (non condensing)
---
95
% rel. H
260
℃
Operating Temperature Range (with Derating)
Cooling
Free-Air convection
Lead Temperature (1.5mm from case for 10Sec.)
---
Unit
Power Derating Curve
Derating Curve without Heatsink
Derating Curve with Heatsink
Notes
1
Specifications typical at Ta=+25℃, resistive load, nominal input voltage and 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 0-20MHz.
4
These power converters require a minimum output loading to maintain specified regulation, operation under no-load conditions will not damage these
5
All DC/DC converters should be externally fused at the front end for protection.
modules; however they may not meet all specifications listed.
6
Other input and output voltage may be available, please contact factory.
7
To order the converter with Remote On/Off function, add suffix RC (e.g. MKW2521-RC) to order code.
8
To order the converter with input filter meeting EN55022, Class A , add suffix A (e.g. MKW2521A) to order code.
9
To order the converter with heatsink, add suffix H (e.g. MKW2521H) to order code.
10
Specifications subject to change without notice.
In
Total Power International,
Inc
Toll Free: 877-646-0900
www.total-power.com
MKW2500 SERIES
Tota
Total Power International, Inc.
DC/DC CONVERTER 15W
Package Specifications
Mechanical Dimensions
10.16
[0.40]
10.16
[0.40]
2
+Vin
2
-Vin
+Vin
-Vin
3
+Vout
+Vout
4
No Pin
Common
5
-Vout
-Vout
6
Remote On/Off (Optional)
NC: No Connection
6
15.2 [0.60]
1
Dual Output
1
50.8 [2.00]
3.6 [0.14]
Bottom View
1.00 [ 0.04]
5
4
3
20.32 [0.80]
2.54
[0.10]
Pin Connections
Pin
Single Output
1.1 [0.04]
►All
7.62
[0.30]
5.08
[0.20]
7.62
[0.30]
6.0
[0.24]
10.2
[0.40]
dimensions in mm (inches)
►Tolerance: X.X±0.25
(X.XX±0.01)
X.XX±0.13 ( X.XXX±0.005)
25.4 [1.00]
►Pin
diameter  1.0 ±0.05 (0.04±0.002)
Physical Characteristics
Case Size
:
50.8x25.4x10.2mm (2.0x1.0x0.40 Inches)
Case Material
:
Metal With Non-Conductive Baseplate
Base Material
:
FR4 PCB (flammability to UL 94V-0 rated)
Weight
:
32g
Heatsink (Option –H)
23.0 [0.91]
Physical Characteristics
Heatsink Material
:
Aluminum
Finish
:
Black Anodized Coating
Weight
:
9g
18.0 [0.71]Max
31.0 [1.22]Max
►The
Heat-sink
Thermal pad
advantages of adding a heatsink are:
1. To help heat dissipation and increase the stability
and reliability of DC/DC converters at high
Clamp
Converter
operating temperature atmosphere.
2. To upgrade the operating temperature of DC/DC
converters, please refer to Derating Curve.
In
Total Power International,
Inc
Toll Free: 877-646-0900
www.total-power.com
MKW2500 SERIES
Tota
Total Power International, Inc.
DC/DC CONVERTER 15W
Test Configurations
Input Reflected-Ripple Current Test Setup
Input reflected-ripple current is measured with a inductor Lin (4.7uH) and Cin (220uF, ESR < 1.0Ω 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
+Vin
Lin
DC / DC
Converter
Current
Probe
Cin
+Out
-Vin
Load
-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
Copper Strip
Single Output
DC / DC
Converter
-Vin
Cout
-Out
Scope
Resistive
Load
Copper Strip
+Vin
+Out
Copper Strip
Dual Output
DC / DC
Converter
Com.
Copper Strip
-Vin
-Out
Scope
Cout
Cout
Resistive
Load
Scope
Copper Strip
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 -0.7V to 0.8V. A logic high is 2.5V to 5.5V. The maximum sink current at on/off terminal during a logic low is -1 mA. The maximum allowable
leakage current of the switch at on/off terminal (2.5 to 5.5V) is 50uA.
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 recommended to use a good quality low Equivalent Series Resistance (ESR <
1.0Ω at 100 KHz) capacitor of a 22uF for the 12V input devices and a 6.8uF for the 24V and 48V devices.
+
DC Power
Source
+Vin
+
+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
DC Power
Source
-
+Out
Single Output
DC / DC
Converter
-Vin
+
Cout
Load
-Out
+Vin
DC Power
Source
-
+Out
Dual Output
Com.
DC / DC
Converter
-Vin
-Out
Cout
Load
Load
Cout
Maximum Capacitive Load
The MKW2500 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.
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 100℃.
The derating curves are determined from measurements obtained in a test setup.
Position of air velocity
probe and thermocouple
50mm / 2in
15mm / 0.6in
In
Total Power International,
Inc
Air Flow
DUT
Toll Free: 877-646-0900
www.total-power.com
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