Total Power MKW5041 Wide 2:1 input range Datasheet

FEATURES
►2”x 1”x 0.4” Metal Package
►Wide 2:1 Input Range
►Very High Efficiency up to 88%
►Adjustable Output Voltage
►Operating Temp. Range –40°C to +85°C
►Short Circuit Protection
►I/O-isolation 1500VDC
►Remote on/off (Option)
►Heatsink (Option)
►Cost optimized Design
►CSA/UL/IEC/EN 60950-1 Safety Approval
►3 Years Product Warranty
PRODUCT OVERVIEW
The MKW5000 series is a range of isolated 30W 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 +85°C.
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
MKW5030
MKW5031
MKW5032
MKW5039
MKW5033
MKW5034
MKW5040
MKW5041
MKW5042
MKW5049
MKW5043
MKW5044
24
(18 ~ 36)
48
(36 ~ 75)
VDC
2.5
3.3
5
5.1
12
15
2.5
3.3
5
5.1
12
15
Input Current
Reflected
Max. capacitive
Ripple
Load
Max.
Min.
@Max. Load
@No Load
Current
mA
6000
6000
5000
5000
2500
2000
6000
6000
5000
5000
2500
2000
mA
0
0
0
0
166
133
0
0
0
0
166
133
mA(typ.)
744
959
1185
1207
1420
1420
372
480
604
604
710
710
mA(typ.)
mA(typ.)
70
100
(typ.)
@Max. Load
μF
6800
680
6800
50
Efficiency
50
680
%
84
86
88
88
88
88
84
86
88
88
88
88
Input Specifications
Parameter
Input Surge Voltage (1 sec. max.)
Start-Up Threshold Voltage
Under Voltage Shutdown
Reverse Polarity Input Current
Short Circuit Input Power
Internal Power Dissipation
Conducted EMI (with suffix A only)
In
Total Power International,
Inc
Model
24V Input Models
48V Input Models
24V Input Models
48V Input Models
24V Input Models
48V Input Models
All Models
Min.
-0.7
-0.7
Typ.
Max.
Unit
50
--100
--17
17.8
18
VDC
34
35
36
16
16.5
17
32
33
34
----2
A
----4500
mW
----4500
mW
Compliance to EN 55022,class A and FCC part 15,class A
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MKW5000 SERIES
Total Power International, Inc.
Tota
DC/DC CONVERTER 30W
Output Specifications
Parameter
Conditions
Output Voltage Setting Accuracy
Line Regulation
Load Regulation (2.5/3.3/5/5.1Vout)
Load Regulation (12/15Vout)
Ripple & Noise (20MHz)
Transient Recovery Time
Transient Response Deviation
Temperature Coefficient
Over Load Protection
Short Circuit Protection
At 50% Load and Nominal Vin
Vin=Min. to Max.
Io=0% to 100%
Io=10% to 100%
25% Load Step Change
Foldback
Min.
----------------110
Continuous
Typ.
--±0.1
±0.5
±0.5
75
200
±2
±0.01
155
Max.
±1.0
±0.3
±1.0
±1.0
100
500
±4
±0.02
---
Min.
Typ.
Max.
Unit
%Vnom.
%
%
%
mV P-P
μsec
%
%/℃
%
General Specifications
Parameter
Conditions
I/O Isolation Voltage (rated)
I/O Isolation Resistance
I/O Isolation Capacitance
Switching Frequency
MTBF (calculated)
Safety Approvals
Unit
60 Seconds
500 VDC
100KHz, 1V
1500
----1000
------1200
1500
280
350
400
MIL-HDBK-217F@25℃, Ground Benign
600,000
----UL/cUL 60950-1 recognition(CSA certificate), IEC/EN 60950-1(CB-scheme)
VDC
MΩ
pF
KHz
Hours
Input Fuse
24V Input Models
3000mA Slow-Blow Type
48V Input Models
1500mA Slow-Blow Type
Remote On/Off Control
Parameter
Conditions
Converter On
Converter Off
Control Input Current (on)
Control Input Current (off)
Control Common
Standby Input Current
Vctrl = 5.0V
Vctrl = 0V
Nominal Vin
Min.
Typ.
2.5 to 100VDC or Open Circuit
-1V ~ 1V or Short Circuit
--------Referenced to Negative Input
--2
Max.
Unit
5
-100
μA
μA
5
mA
Environmental Specifications
Parameter
Conditions
Min.
Max.
Unit
Operating Ambient Temperature Range (See Power Derating Curve)
Case Temperature
Storage Temperature Range
Humidity (non condensing)
Cooling
Lead Temperature (1.5mm from case for 10Sec.)
Natural Convection
-40
+85
℃
+105
+125
95
℃
℃
% rel. H
260
℃
---50
--Free-Air convection
---
Power Derating Curve
100
Natural
Convection
20LFM
80
100LFM
60
200LFM
400LFM
40
20
0
~
-40
30
40
50
60
70
80
90
Ambient Temperature C
Derating Curve without Heatsink
In
Total Power International,
Inc
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Derating Curve with Heatsink
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100
110
MKW5000 SERIES
Tota
Total Power International, Inc.
DC/DC CONVERTER 30W
Notes
1
2
3
4
5
6
7
8
9
10
11
Specifications typical at Ta=+25℃, resistive load, nominal input voltage and rated output current unless otherwise noted.
Transient recovery time is measured to within 1% error band for a step change in output load of 75% to 100%
Ripple & Noise measurement bandwidth is 0-20MHz.
These power converters require a minimum output loading to maintain specified regulation, operation under no-load conditions will not damage these modules;
however they may not meet all specifications listed.
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.
To order the converter with Remote On/Off function, please add suffix RC (e.g. MKW5030-RC) to order code.
To order the converter with EN55022 Class A , please add suffix A (e.g. MKW5030A) to order code.
To order the converter with heatsink, please add suffix H (e.g. MKW5030H) to order code.
That “natural convection” is about 20LFM but is not equal to still air (0 LFM).
Specifications are subject to change without notice.
Package Specifications
Pin Connections
Mechanical Dimensions
[0.20]
1
1.00 [ 0.04]
2
3.6 [0.14]
Bottom View
50.8 [2.00]
3
Pin
1
5.08
45.72 [1.80]
10.16
[0.40]
Function
+Vin
2
-Vin
3
Remote On/Off
4
+Vout
5
-Vout
6
Trim
1.1 [0.04]
5
6
10.16
[0.40]
4
10.16
[0.40]
►All
2.54
[0.10]
5.1
[0.20]
10.2
[0.40]
25.4 [1.00]
dimensions in mm (inches)
►Tolerance: X.X±0.25
(X.XX±0.01)
X.XX±0.13 ( X.XXX±0.005)
►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
:
Aluminum Anodizing Treatment in Black
Base Material
:
FR4 PCB (flammability to UL 94V-0 rated)
Pin Material
:
Copper Alloy with Gold Plate Over Nickel Subplate
Weight
:
32g
Heatsink (Option –H)
31.1[1.22]
Physical Characteristics
Heatsink Material
:
Aluminum
Finish
:
Black Anodized Coating
Weight
:
9g
17.2[0.68]Max
31.0[1.22]Max
►The
Heat-sink
Thermal pad
Clamp
Converter
In
Total Power International,
Inc
Toll Free: 877-646-0900
advantages of adding a heatsink are:
1. To help heat dissipation and increase the stability
and reliability of DC/DC converters at high
operating temperature atmosphere.
2. To upgrade the operating temperature of DC/DC
converters, please refer to Derating Curve.
www.total-power.com
MKW5000 SERIES
Tota
Total Power International, Inc.
DC/DC CONVERTER 30W
Test Setup
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
+Vin
Lin
DC / DC
Converter
Current
Probe
Cin
+Out
-Vin
Load
-Out
Peak-to-Peak Output Noise Measurement Test
Use a Cout 1.0μF 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
Cout
Cout
Scope
Resistive
Load
Scope
Copper Strip
Technical Notes
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 3) during a logic low is -100μA.
The maximum allowable leakage current of a switch connected to the on/off terminal (Pin 3) at logic high (2.5V to 100V) is 5μA.
Output Voltage Trim
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.
+Vin
+Out
-Vin
-Out
Enable
Trim
Trim Down
Trim Up
10K
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:
Radj - up =
(33 × Vout ) - (30 × Vadj)
Vadj - Vout
Connecting the external resistor (Radj-down) between the Trim and +Vout pins decreases the output voltage set point as defined in the following equation:
Radj - down =
(36.667 × Vadj) - (33 × Vout )
Vout - Vadj
Vout: Nominal Output Voltage
Vadj: Adjusted Output Voltage Units: VDC/ KΩ
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.
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.
In
Total Power International,
Inc
Toll Free: 877-646-0900
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MKW5000 SERIES
Tota
Total Power International, Inc.
DC/DC CONVERTER 30W
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 33μF for the 12V input devices and a 10μF 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 4.7μF capacitors at the output.
+
+Vin
DC Power
Source
-
+Out
Single Output
DC / DC
Converter
-Vin
+
Cout
Load
-Out
+Vin
-
+Out
Dual Output
DC / DC
Com.
Converter
DC Power
Source
-Vin
-Out
Cout
Load
Load
Cout
Maximum Capacitive Load
The MKW5000 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 680μF maximum capacitive load for 12V & 15V outputs and 6800μF
capacitive load for the other 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 105℃.
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
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