Application Note

THN 15-WI Series
Application Note
DC/DC Converter 9 to 36Vdc or 18 to 75Vdc Input
3.3 to 15Vdc Single Outputs and ±5Vdc to ±15Vdc Dual Outputs 15W Output Power
Features
• Single output current up to 4A
• 15 watts output power
• 4:1 ultra wide input voltage range of 9-36 and 18-75VDC
• Industry standard pin-out TEN 15 series compatible
• High efficiency up to 87%
• Low profile: 25.4 x 25.4 x 9.9mm (1.0 x 1.0 x 0.39 inch)
• Fixed switching frequency
• RoHS directive compliant
• No minimum load
• Input to output isolation: 1500Vdc, min
• Input to output isolation (BASIC INSULATION)
• Input under-voltage protection
• Output over-voltage protection
• Over-current protection, auto-recovery
• Output short circuit protection
• Remote ON/OFF control
• Adjustable output voltage
E188913
Options
• Heat sinks available for extended operation temperature
Complete THN 15-WI datasheet can be downloaded at:
Applications
• Wireless Network
• Telecom/Datacom
• Industry Control System
• Measurement
• Semiconductor Equipment
http://www.tracopower.com/products/thn15wi.pdf
General Description
THN 15-WI single output DC/DC converters provide up to 15 watts of output power in an industry standard package and
footprint. These units are specifically designed to meet the power needs of low profile. All models feature with 4:1 ultra wide input
voltage of 9-36 Vdc and 18-75 Vdc ,comprehensively protected against over-current, over-voltage and input under-voltage
protection conditions, and adjustable output voltage.
Table of contents
Absolute Maximum Rating
Output Specification
Input Specification
General Specification
Characteristic Curves
Testing Configurations
EMC Consideration
Input Source Impedance
Output Over Current Protection
Output Over Voltage Protection
Output Voltage Adjustment
Created by Traco Electronic AG
P2
P2
P3
P4
P5 – P32
P33
P34 – P38
P38
P38
P38
P39
Short Circuitry Protection
Thermal Consideration
Heat Sink Consideration
Remote ON/OFF Control
Mechanical Data
Recommended Pad Layout
Soldering and Reflow Considerations
Packaging Information
Part Number Structure
Safety and Installation Instruction
MTBF and Reliability
www.tracopower.com
P40
P40
P40
P41
P42
P43
P43
P44
P44
P45
P45
Date: July 10th, 2012 / Rev.: 2.2 / Page 1 / 45
Application Note
THN 15WI Series
Parameter
Input Voltage
Continuous
Transient (100mS)
Input Voltage Variation
(complies with ETS300 132 part 4.4)
Operating Ambient Temperature (with derating)
Storage Temperature
Parameter
Output Voltage Range
(Vin nom; Full Load; TA = 25 °C)
Voltage Adjustability (See Page 25)
Output Regulation
Line (Vin min to Vin max at Full Load)
Load (0% to 100% of Full Load)
Output Ripple & Noise(See Page 21)
Peak-to-Peak (20MHz bandwidth)
(Measured with a 1µF M/C and a 10µF T/C )
Temperature Coefficient
Output Voltage Overshoot
(Vin min to Vin max; Full Load; TA = 25°C)
Dynamic Load Response
(Vin nom; TA = 25°C)
Load step change from
75% to 100% or 100 to 75% of Full Load
Peak Deviation
Setting Time (VOUT<10% peak deviation)
Output Current
Output Over Voltage Protection
(Voltage Clamped)
Output Over Current Protection
Output Short Circuit Protection
Created by Traco Electronic AG
Absolute Maximum Rating
Model
Min
Max
Unit
THN 15-24xxWI
THN 15-48xxWI
THN 15-24xxWI
THN 15-48xxWI
36
75
50
100
All
5
V/mS
85
125
°C
°C
All
All
Output Specification
Model
THN 15-xx10WI
THN 15-xx11WI
THN 15-xx12WI
THN 15-xx13WI
THN 15-xx21WI
THN 15-xx22WI
THN 15-xx23WI
All
All
-40
-55
Min
3.267
4.95
11.88
14.85
±4.95
±11.88
±14.85
-10
Typ
3.3
5
12
15
±5
±12
±15
-0.2
-0.2
THN 15-xx10WI
Vdc
Max
3.333
5.05
12.12
15.15
±5.05
±12.12
±15.15
+10
Unit
+0.2
+0.2
%
VDC
%
75
mV Pk-Pk
All other
All
100
-0.02
All
0
All
All
300
250
THN 15-xx10WI
THN 15-xx11WI
THN 15-xx12WI
THN 15-xx13WI
THN 15-xx21WI
THN 15-xx22WI
THN 15-xx23WI
THN 15-xx10WI
THN 15-xx11WI
THN 15-xx12WI
THN 15-xx13WI
THN 15-xx21WI
THN 15-xx22WI
THN 15-xx23WI
All
All
www.tracopower.com
0
0
0
0
0
0
0
3.7
5.6
13.5
16.8
5.6
13.5
16.8
+0.02
%/°C
3
% Vout
mV
μS
4000
3000
1300
1000
±1500
±625
±500
5.4
7.0
19.6
20.5
7.0
19.6
20.5
mA
Vdc
150
% FL.
Hiccup, automatics recovery
Date: July 10th, 2012 / Rev.: 2.2 / Page 2 / 45
Application Note
Parameter
Operating Input Voltage
Input Current
(Maximum value at Vin nom; Full Load)
Input Standby Current
(Typical value at Vin nom; No Load)
Under Voltage Lockout Turn-on Threshold
Under Voltage Lockout Turn-off Threshold
Input Reflected Ripple Current (See Page 21)
(5 to 20MHz, 12μH source impedance)
Start Up Time
(Vin nom and constant resistive load)
Power up
Remote ON/OFF
Remote ON/OFF Control (See Page 27)
(The ON/OFF pin voltage is referenced to -Vin)
Positive Logic DC-DC ON(Open)
DC-DC OFF(Short)
Remote Off Input Current
Input Current of Remote Control Pin
Created by Traco Electronic AG
THN 15WI Series
Input Specification
Model
THN 15-24xxWI
THN 15-48xxWI
THN 15-2410WI
THN 15-2411WI
THN 15-2412WI
THN 15-2413WI
THN 15-2421WI
THN 15-2422WI
THN 15-2423WI
THN 15-4810WI
THN 15-4811WI
THN 15-4812WI
THN 15-4813WI
THN 15-4821WI
THN 15-4822WI
THN 15-4823WI
THN 15-2410WI
THN 15-2411WI
THN 15-2412WI
THN 15-2413WI
THN 15-2421WI
THN 15-2422WI
THN 15-2423WI
THN 15-4810WI
THN 15-4811WI
THN 15-4812WI
THN 15-4813WI
THN 15-4821WI
THN 15-4822WI
THN 15-4823WI
THN 15-24xxWI
THN 15-48xxWI
THN 15-24xxWI
THN 15-48xxWI
Min
9
18
Typ
24
48
Max
36
75
688
782
803
772
772
753
744
336
382
392
377
386
382
377
50
50
20
20
20
25
25
40
40
15
15
15
15
20
Unit
Vdc
mA
mA
9
18
Vdc
8
16
Vdc
All
30
mA Pk-Pk
All
30
30
mS
All
All
All
www.tracopower.com
3
0
15
1.2
2.5
-0.5
1.0
Vdc
mA
mA
Date: July 10th, 2012 / Rev.: 2.2 / Page 3 / 45
Application Note
Parameter
Efficiency (See Page 21)
(Vin nom; Full Load; TA = 25°C)
Isolation Voltage (Basic Insulation)
Input to Output (1 minute)
Input/Output to Case (1 minute)
Isolation Resistance
Isolation Capacitance
Switching Frequency
Weight
MTBF (See Page 31)
Bellcore TR-NWT-000332, TC = 40°C
MIL-STD-217F
Created by Traco Electronic AG
THN 15WI Series
General Specification
Model
THN 15-2410WI
THN 15-2411WI
THN 15-2412WI
THN 15-2413WI
THN 15-2421WI
THN 15-2422WI
THN 15-2423WI
THN 15-4810WI
THN 15-4811WI
THN 15-4812WI
THN 15-4813WI
THN 15-4821WI
THN 15-4822WI
THN 15-4823WI
All
All
All
All
All
All
www.tracopower.com
Min
Typ
86
84
86
85
85
87
88
86
86
87
87
85
86
87
Max
Unit
%
1600
1000
1
Vdc
1000
400
15
1’330’000
563’000
GΩ
pF
KHz
g
hours
Date: July 10th, 2012 / Rev.: 2.2 / Page 4 / 45
Application Note
THN 15WI Series
Characteristic Curves
All test conditions are at 25°C. The figures are identical for THN 15-2410WI
Efficiency versus Output Current
Typical Output Ripple and Noise.
Vin nom; Full Load
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature and
Airflow Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin nom
Typical Input Start-Up and Output Rise Characteristic
Vin nom; Full Load
Date: July 10th, 2012 / Rev.: 2.2 / Page 5 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-2410WI
Conduction Emission of EN55022 Class A
Vin nom; Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin nom; Full Load
Conduction Emission of EN55022 Class B
Vin nom; Full Load
Power Dissipation versus Output Current
Derating Output Current Versus Ambient Temperature with
Heat-Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Date: July 10th, 2012 / Rev.: 2.2 / Page 6 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-2411WI
Efficiency versus Output Current
Typical Output Ripple and Noise.
Vin nom; Full Load
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature and
Airflow Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load ; Vin nom
Typical Input Start-Up and Output Rise Characteristic
Vin nom; Full Load
Date: July 10th, 2012 / Rev.: 2.2 / Page 7 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-2411WI
Conduction Emission of EN55022 Class A
Vin nom; Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin nom; Full Load
Conduction Emission of EN55022 Class B
Vin nom; Full Load
Power Dissipation versus Output Current
Derating Output Current Versus Ambient Temperature with
Heat-Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Date: July 10th, 2012 / Rev.: 2.2 / Page 8 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-2412WI
Efficiency versus Output Current
Typical Output Ripple and Noise.
Vin nom; Full Load
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature and
Airflow Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load ; Vin nom
Typical Input Start-Up and Output Rise Characteristic
Vin nom; Full Load
Date: July 10th, 2012 / Rev.: 2.2 / Page 9 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-2412WI
Conduction Emission of EN55022 Class A
Vin nom; Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin nom; Full Load
Conduction Emission of EN55022 Class B
Vin nom; Full Load
Power Dissipation versus Output Current
Derating Output Current Versus Ambient Temperature with
Heat-Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Date: July 10th, 2012 / Rev.: 2.2 / Page 10 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-2413WI
Efficiency versus Output Current
Typical Output Ripple and Noise.
Vin nom; Full Load
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature and
Airflow Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load ; Vin nom
Typical Input Start-Up and Output Rise Characteristic
Vin nom; Full Load
Date: July 10th, 2012 / Rev.: 2.2 / Page 11 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-2413WI
Conduction Emission of EN55022 Class A
Vin nom; Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin nom; Full Load
Conduction Emission of EN55022 Class B
Vin nom; Full Load
Power Dissipation versus Output Current
Derating Output Current Versus Ambient Temperature with
Heat-Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Date: July 10th, 2012 / Rev.: 2.2 / Page 12 / 45
Application Note
THN 15WI Series
Characteristic Curves
All test conditions are at 25°C. The figures are identical for THN 15-2421WI
Efficiency versus Output Current
Typical Output Ripple and Noise.
Vin nom; Full Load
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature and Airflow
Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load ; Vin nom
Typical Input Start-Up and Output Rise Characteristic
Vin nom; Full Load
Date: July 10th, 2012 / Rev.: 2.2 / Page 13 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-2421WI
Conduction Emission of EN55022 Class A
Vin nom; Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin nom; Full Load
Conduction Emission of EN55022 Class B
Vin nom; Full Load
Power Dissipation versus Output Current
Derating Output Current Versus Ambient Temperature with
Heat-Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Date: July 10th, 2012 / Rev.: 2.2 / Page 14 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-2422WI
Efficiency versus Output Current
Typical Output Ripple and Noise.
Vin nom; Full Load
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature and Airflow
Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load ; Vin nom
Typical Input Start-Up and Output Rise Characteristic
Vin nom; Full Load
Date: July 10th, 2012 / Rev.: 2.2 / Page 15 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-2422WI
Conduction Emission of EN55022 Class A
Vin nom; Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin nom; Full Load
Conduction Emission of EN55022 Class B
Vin nom; Full Load
Power Dissipation versus Output Current
Derating Output Current Versus Ambient Temperature with
Heat-Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Date: July 10th, 2012 / Rev.: 2.2 / Page 16 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-2423WI
Efficiency versus Output Current
Typical Output Ripple and Noise.
Vin nom; Full Load
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature and Airflow
Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load ; Vin nom
Typical Input Start-Up and Output Rise Characteristic
Vin nom; Full Load
Date: July 10th, 2012 / Rev.: 2.2 / Page 17 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are identical for THN 15-2423WI
Conduction Emission of EN55022 Class A
Vin nom; Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin nom; Full Load
Conduction Emission of EN55022 Class B
Vin nom; Full Load
Power Dissipation versus Output Current
Derating Output Current Versus Ambient Temperature with
Heat-Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Date: July 10th, 2012 / Rev.: 2.2 / Page 18 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-4810WI
Efficiency versus Output Current
Typical Output Ripple and Noise.
Vin nom; Full Load
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature and
Airflow Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load ; Vin nom
Typical Input Start-Up and Output Rise Characteristic
Vin nom; Full Load
Date: July 10th, 2012 / Rev.: 2.2 / Page 19 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-4810WI
Conduction Emission of EN55022 Class A
Vin nom; Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin nom; Full Load
Conduction Emission of EN55022 Class B
Vin nom; Full Load
Power Dissipation versus Output Current
Derating Output Current Versus Ambient Temperature with
Heat-Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Date: July 10th, 2012 / Rev.: 2.2 / Page 20 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-4811WI
Efficiency versus Output Current
Typical Output Ripple and Noise.
Vin nom; Full Load
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature and
Airflow Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load ; Vin nom
Typical Input Start-Up and Output Rise Characteristic
Vin nom; Full Load
Date: July 10th, 2012 / Rev.: 2.2 / Page 21 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-4811WI
Conduction Emission of EN55022 Class A
Vin nom; Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin nom; Full Load
Conduction Emission of EN55022 Class B
Vin nom; Full Load
Power Dissipation versus Output Current
Derating Output Current Versus Ambient Temperature with
Heat-Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Date: July 10th, 2012 / Rev.: 2.2 / Page 22 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-4812WI
Efficiency versus Output Current
Typical Output Ripple and Noise.
Vin nom; Full Load
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature and
Airflow Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load ; Vin nom
Typical Input Start-Up and Output Rise Characteristic
Vin nom; Full Load
Date: July 10th, 2012 / Rev.: 2.2 / Page 23 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-4812WI
Conduction Emission of EN55022 Class A
Vin nom; Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin nom; Full Load
Conduction Emission of EN55022 Class B
Vin nom; Full Load
Power Dissipation versus Output Current
Derating Output Current Versus Ambient Temperature with
Heat-Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Date: July 10th, 2012 / Rev.: 2.2 / Page 24 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-4813WI
Efficiency versus Output Current
Typical Output Ripple and Noise.
Vin nom; Full Load
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature and
Airflow Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load ; Vin nom
Typical Input Start-Up and Output Rise Characteristic
Vin nom; Full Load
Date: July 10th, 2012 / Rev.: 2.2 / Page 25 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-4813WI
Conduction Emission of EN55022 Class A
Vin nom; Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin nom; Full Load
Conduction Emission of EN55022 Class B
Vin nom; Full Load
Power Dissipation versus Output Current
Derating Output Current Versus Ambient Temperature with
Heat-Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Date: July 10th, 2012 / Rev.: 2.2 / Page 26 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-4821WI
Efficiency versus Output Current
Typical Output Ripple and Noise.
Vin nom; Full Load
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature and Airflow
Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load ; Vin nom
Typical Input Start-Up and Output Rise Characteristic
Vin nom; Full Load
Date: July 10th, 2012 / Rev.: 2.2 / Page 27 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-4821WI
Conduction Emission of EN55022 Class A
Vin nom; Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin nom; Full Load
Conduction Emission of EN55022 Class B
Vin nom; Full Load
Power Dissipation versus Output Current
Derating Output Current Versus Ambient Temperature with
Heat-Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Date: July 10th, 2012 / Rev.: 2.2 / Page 28 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-4822WI
Efficiency versus Output Current
Typical Output Ripple and Noise.
Vin nom; Full Load
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature and Airflow
Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load ; Vin nom
Typical Input Start-Up and Output Rise Characteristic
Vin nom; Full Load
Date: July 10th, 2012 / Rev.: 2.2 / Page 29 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-4822WI
Conduction Emission of EN55022 Class A
Vin nom; Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin nom; Full Load
Conduction Emission of EN55022 Class B
Vin nom; Full Load
Power Dissipation versus Output Current
Derating Output Current Versus Ambient Temperature with
Heat-Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Date: July 10th, 2012 / Rev.: 2.2 / Page 30 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-4823WI
Efficiency versus Output Current
Typical Output Ripple and Noise.
Vin nom; Full Load
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature and Airflow
Vin = Vin nom
Created by Traco Electronic AG
www.tracopower.com
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load ; Vin nom
Typical Input Start-Up and Output Rise Characteristic
Vin nom; Full Load
Date: July 10th, 2012 / Rev.: 2.2 / Page 31 / 45
Application Note
THN 15WI Series
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 15-4823WI
Conduction Emission of EN55022 Class A
Vin nom; Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin nom; Full Load
Conduction Emission of EN55022 Class B
Vin nom; Full Load
Power Dissipation versus Output Current
Derating Output Current Versus Ambient Temperature with
Heat-Sink and Airflow, Vin = Vin nom
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Date: July 10th, 2012 / Rev.: 2.2 / Page 32 / 45
Application Note
THN 15WI Series
Testing Configurations
Input reflected-ripple current measurement test up
CURRENT PROBEMEASURE POINT
+Vin
L
+
BATTERY
+
C2
C1
-Vin
Component
L
C1
C2
Value
12μH
10μF
10μF
Voltage
---100V
100V
Reference
---Aluminum Electrolytic Capacitor
Aluminum Electrolytic Capacitor
Peak-to-peak output ripple & noise measurement test up
Output voltage and efficiency measurement test up
Note: All measurements are taken at the module terminals.
 V × Io 
 × 100%
Efficiency =  o
 Vin × I in 
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Application Note
THN 15WI Series
EMC considerations (Single Output)
Suggested schematic to comply with EN55022 conducted noise emission Class A
Recommended layout with input filter
To comply with the conducted noise emissions according to EN55022 CLASS A following components are required:
THN 15-24xxWI
Component
C1
C2
C3, C4
Value
6.8µF
6.8µF
470pF
Voltage
50V
50V
2KV
1812 MLCC
1812 MLCC
1808 MLCC
THN 15-48xxWI
Component
C1
C2
C3, C4
Value
2.2µF
2.2µF
470pF
Voltage
100V
100V
3KV
1812 MLCC
1812 MLCC
1808 MLCC
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Reference
Reference
Date: July 10th, 2012 / Rev.: 2.2 / Page 34 / 45
Application Note
THN 15WI Series
EMC considerations (Single Output)
C5
L1
4
+INPUT
3
C2
-INPUT
+Vin
C3
1
2
+Vout
C4
Load
-Vin
-Vout
D/D Converter
C6
Suggested schematic to comply with EN55022 conducted noise emission Class B
Recommended layout with input filter
To comply with the conducted noise emissions according to EN55022 CLASS B following components are required:
THN 15-24xxWI
Component
C2, C3
C4
C5, C6
L1
Value
6.8μF
---470pF
325μH
Voltage
50V
---2KV
----
THN 15-48xxWI
Component
C2, C3
C4
C5, C6
L1
Value
2.2μF
2.2μF
470pF
325μH
Voltage
100V
100V
2KV
----
Created by Traco Electronic AG
Reference
1812 MLCC
---1808 MLCC
Common Choke, P/N: TCK-050
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Reference
1812 MLCC
1812 MLCC
1808 MLCC
Common Choke, P/N: TCK-050
Date: July 10th, 2012 / Rev.: 2.2 / Page 35 / 45
Application Note
THN 15WI Series
EMC considerations (Dual Output)
Suggested schematic to comply with EN55022 conducted noise emission Class A
Recommended layout with input filter
To comply with the conducted noise emissions according to EN55022 CLASS A following components are required:
THN 15-24xxWI
Component
C1
C2
C3, C4
Value
6.8µF
6.8µF
470pF
Voltage
50V
50V
3KV
1812 MLCC
1812 MLCC
1808 MLCC
THN 15-48xxWI
Component
C1
C2
C3, C4
Value
2.2µF
2.2µF
470pF
Voltage
100V
100V
3KV
1812 MLCC
1812 MLCC
1808 MLCC
Created by Traco Electronic AG
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Reference
Reference
Date: July 10th, 2012 / Rev.: 2.2 / Page 36 / 45
Application Note
THN 15WI Series
EMC considerations (Dual Output)
C5
L1
+INPUT
+Vin
C1
C2
+Vout
Load
C3
COM
Load
-Vin
-INPUT
-Vout
D/D Converter
C4
Suggested schematic to comply with EN55022 conducted noise emission Class B
Recommended layout with input filter
To comply with the conducted noise emissions according to EN55022 CLASS B following components are required:
THN 15-24xxWI
Component
C1, C3
C2
C4, C5
L1
Value
6.8μF
---470pF
325μH
Voltage
50V
---3KV
----
Reference
1812 MLCC
---1808 MLCC
Common Choke, P/N: TCK-050
THN 15-48xxWI
Component
C1, C3
C2
C4, C5
L1
Value
2.2μF
2.2μF
1000pF
325μH
Voltage
100V
100V
3KV
----
Reference
1812 MLCC
1812 MLCC
1808 MLCC
Common Choke, P/N: TCK-050
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Date: July 10th, 2012 / Rev.: 2.2 / Page 37 / 45
Application Note
THN 15WI Series
EMC considerations
This Common Choke L1 has been define as follow:
■ TCK-050
L: 325μH ±35% / DCR: 35Ω, max
A height: 8.8 mm, Max
■ Test condition: 100KHz / 100mV
■ Recommended through hole: Φ0.8mm
■ All dimensions in millimeters
Input Source Impedance
The power module should be connected to a low impedance input source. Highly inductive source impedance can affect the
stability of the power module. Input external C-L-C filter is recommended to minimize input reflected ripple current. The inductor is
simulated source impedance of 12μH and capacitor is Nippon Chemi-con KZE series 10μF/100V&10μF/100V. The capacitor
must be equipped as close as possible to the input terminals of the power module for lower impedance.
Output Over Current Protection
When excessive output currents occur in the system, circuit protection is required on all power supplies. Normally, overload
current is maintained at approximately about 150 percent of rated current for THN 15-WI single output series.
Hiccup-mode is a method of operation in a power supply whose purpose is to protect the power supply from being damaged
during an over-current fault condition. It also enables the power supply to restart when the fault is removed.
One of the problems resulting from over current is that excessive heat may be generated in power devices; especially MOSFET
and Shottky diodes and the temperature of those devices may exceed their specified limits. A protection mechanism has to be
used to prevent those power devices from being damaged.
Output Over Voltage Protection
The output over-voltage protection consists of a Zener diode that monitors the output voltage on the feedback loop. If the voltage
on the output terminals exceeds the over-voltage protection threshold, then the Zener diode will send a current signal to the
control IC to limiting the output voltage.
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Application Note
THN 15WI Series
Output Voltage Adjustment
Output voltage set point adjustment allows the user to increase or decrease the output voltage set point of a module. This is
accomplished by connecting an external resistor between the TRIM pin and either the +Vout or -Vout pins. With an external resistor
between the TRIM and -Vout pin, the output voltage set point increases. With an external resistor between the TRIM and +Vout pin,
the output voltage set point decreases.

Trim up equation
-Vout
RT1

-Vin
Trim down equation
Trim
+Vin
RT2

Trim constants
Module
+Vout
G
H
K
L
THN 15-xx10WI
5110
2050
0.8
2.5
THN 15-xx11WI
5110
2050
2.5
2.5
THN 15-xx12WI
10000
5110
9.5
2.5
THN 15-xx13WI
10000
5110
12.5
2.5
TRIM TABLE
Trim up (%)
1
VOUT (Volts) =
3.333
RT1 (KΩ) = 385.071
Trim down (%)
1
VOUT (Volts) =
3.267
RT2 (KΩ) = 116.719
2
3.366
191.511
2
3.234
54.779
Trim up (%)
1
VOUT (Volts) =
5.050
253.450
RT1 (KΩ) =
Trim down (%)
1
VOUT (Volts) =
4.950
RT2 (KΩ) = 248.340
2
5.100
125.700
2
4.900
120.590
3
3.399
126.990
3
3.201
34.133
THN 15-xx10WI
4
5
3.432
3.465
94.730
75.374
4
5
3.168
3.135
23.810
17.616
6
3.498
62.470
6
3.102
13.486
7
3.531
53.253
7
3.069
10.537
8
3.564
46.340
8
3.036
8.325
9
3.597
40.963
9
3.003
6.604
10
3.630
36.662
10
2.970
5.228
3
5.150
83.117
3
4.850
78.007
THN 15-xx11WI
4
5
5.200
5.250
61.825
49.050
4
5
4.800
4.750
56.715
43.940
6
5.300
40.533
6
4.700
35.423
7
5.350
34.450
7
4.650
29.340
8
5.400
29.888
8
4.600
24.778
9
5.450
26.339
9
4.550
21.229
10
5.500
23.500
10
4.500
18.390
6
12.720
29.612
6
11.280
116.834
7
12.840
24.652
7
11.160
97.985
8
12.960
20.932
8
11.040
83.848
9
13.080
18.038
9
10.920
72.853
10
13.200
15.723
10
10.800
64.057
6
15.900
22.668
6
14.100
123.779
7
16.050
18.700
7
13.950
103.938
8
16.200
15.723
8
13.800
89.057
9
16.350
13.409
9
13.650
77.483
10
16.500
11.557
10
13.500
68.223
Trim up (%)
1
VOUT (Volts) = 12.120
RT1 (KΩ) = 203.223
Trim down (%)
1
VOUT (Volts) = 11.880
RT2 (KΩ) = 776.557
2
12.240
99.057
2
11.760
380.723
3
12.360
64.334
3
11.640
248.779
THN 15-xx12WI
4
5
12.480
12.600
46.973
36.557
4
5
11.520
11.400
182.807 143.223
Trim up (%)
1
VOUT (Volts) = 15.150
RT1 (KΩ) = 161.557
Trim down (%)
1
VOUT (Volts) = 14.850
RT2 (KΩ) = 818.223
2
15.300
78.223
2
14.700
401.557
3
15.450
50.446
3
14.550
262.668
THN 15-xx13WI
4
5
15.600
15.750
36.557
28.223
4
5
14.400
14.250
193.223 151.557
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Date: July 10th, 2012 / Rev.: 2.2 / Page 39 / 45
Application Note
THN 15WI Series
Short Circuitry Protection
Continuous, hiccup and auto-recovery mode.
During short circuit, converter still shut down. The average current during this condition will be very low and the device can be
safety in this condition.
Thermal Consideration
The power module operates in a variety of thermal environments. However, sufficient cooling should be provided to help ensure
reliable operation of the unit. Heat is removed by conduction, convection, and radiation to the surrounding Environment. Proper
cooling can be verified by measuring the point as the figure below. The temperature at this location should not exceed 105°C.
When Operating, adequate cooling must be provided to maintain the test point temperature at or below 105°C. Although the
maximum point Temperature of the power modules is 105°C, you can limit this Temperature to a lower value for extremely high
reliability.
TEMPERATURE MEASURE POINT
Heat Sink Consideration
Equip heat-sink THN-HS1 for lower temperature and higher reliability of the module. Considering space and air-flow is the way to
choose which heat-sink is needed.
All dimensions in millimeters
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Application Note
THN 15WI Series
Remote ON/OFF Control
The Remote ON/OFF Pin is controlled DC/DC power module to turn on and off; the user must use a switch to control the logic
voltage high or low level of the pin referenced to -Vin. The switch can be open collector transistor, FET and Photo-Couple. The
switch must be capable of sinking up to 1 mA at low-level logic Voltage. High-level logic of the ON/OFF signal maximum voltage
is allowable leakage current of the switch at 15V is 50µA.
Remote ON/OFF Implementation Circuits
Isolated-Closure Remote ON/OFF
Level Control Using TTL Output
Level Control Using Line Voltage
The Positive logic structure turned on of the DC/DC module when the ON/OFF pin is at high-level logic and low-level logic is
turned off it.
THN 15-WI module is turned off
at Low-level logic
Created by Traco Electronic AG
THN 15-WI module is turned on
at High-level logic
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Application Note
THN 15WI Series
Mechanical Data
PIN CONNECTION
PIN Single Output Dual Output
1
+ INPUT
+ INPUT
2
- INPUT
- INPUT
3
ON/OFF
ON/OFF
4
+VOUT
+VOUT
5
TRIM
Com
6
-VOUT
-VOUT
1. All dimensions in inches (mm)
2. Tolerance : x.xx ±0.02 (x.x ±0.5)
x.xxx ±0.010 (x.xx ±0.25)
3. Pin pitch tolerance ±0.014 (0.35)
EXTERNAL OUTPUT TRIMMING
Output can be externally trimmed by using the
method shown below.
6
TRIM
UP
RT1
5
or
TRIM
DOWN
RT2
4
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Application Note
THN 15WI Series
Recommended Pad Layout
Recommended pad layout for DIP type
1. All dimensions in inches(mm)
2. Tolerance : x.xx ±0.02 (x.x ±0.5)
x.xxx ±0.010 (x.xx ±0.25)
3. Pin pitch tolerance ±0.014 (0.35)
Soldering and Reflow Considerations
Lead free wave solder profile for DIP type
Zone
Preheat zone
Actual heating
Created by Traco Electronic AG
Reference Parameter.
Rise temp. speed: 3°C/sec max.
Preheat temp. 100~130°C
Peak temp.: 250~260°C
Peak time (T1+T2 time): 4~6 sec
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Date: July 10th, 2012 / Rev.: 2.2 / Page 43 / 45
Application Note
THN 15WI Series
Packaging Information
Packaging information for DIP type
Part Number Structure
THN 15 – 24 11WI
Total Output power
15 Watt
Output Voltage
10: 3.3Vdc
11: 5.0Vdc
12 : 12Vdc
13 : 15Vdc
21 : ±5.0Vdc
22 : ±12.0Vdc
23 : ±15Vdc
Input Voltage Range
24xx: 9~36Vdc
48xx: 18~75Vdc
Model
Number
THN 15-2410WI
THN 15-2411WI
THN 15-2412WI
THN 15-2413WI
THN 15-2421WI
THN 15-2422WI
THN 15-2423WI
THN 15-4810WI
THN 15-4811WI
THN 15-4812WI
THN 15-4813WI
THN 15-4821WI
THN 15-4822WI
THN 15-4823WI
Input
Range
9 - 36 VDC
9 - 36 VDC
9 - 36 VDC
9 - 36 VDC
9 - 36 VDC
9 - 36 VDC
9 - 36 VDC
18 - 75 VDC
18 - 75 VDC
18 - 75 VDC
18 - 75 VDC
18 - 75 VDC
18 - 75 VDC
18 - 75 VDC
Output
Voltage
3.3 VDC
5.0 VDC
12.0 VDC
15.0 VDC
±5.0 VDC
±12.0 VDC
±15.0 VDC
3.3 VDC
5.0 VDC
12.0 VDC
15.0 VDC
±5.0 VDC
±12.0 VDC
±15.0 VDC
Output Current
Full Load
4000mA
3000mA
1300mA
1000mA
±1500mA
±625mA
±500mA
4000mA
3000mA
1300mA
1000mA
±1500mA
±625mA
±500mA
Input Current
(1)
Full Load
688mA
782mA
803mA
772mA
722mA
753mA
744mA
336mA
382mA
392mA
377mA
386mA
382mA
377mA
Efficiency
(%)
86
84
86
85
85
87
88
86
86
87
87
85
86
87
(2)
Note 1. Maximum value at nominal input voltage and full load.
Note 2. Typical value at nominal input voltage and full load.
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Date: July 10th, 2012 / Rev.: 2.2 / Page 44 / 45
Application Note
THN 15WI Series
Safety and Installation Instruction
Fusing Consideration
Caution: This power module is not internally fused. An input line fuse must always be used.
This encapsulated power module can be used in a wide variety of applications, ranging from simple stand-alone operation to an
integrated part of sophisticated power architecture. To maximum flexibility, internal fusing is not included; however, to achieve
maximum safety and system protection, always use an input line fuse. The safety agencies require a normal-blow fuse with
maximum rating of 3A for THN 15-24xxWI modules and 1.5A for THN 15-48xxWI modules. Based on the information provided in
this data sheet on Inrush energy and maximum DC input current; the same type of fuse with lower rating can be used. Refer to
the fuse manufacturer’s data for further information.
MTBF and Reliability
The MTBF of THN 15-WI SERIES of DC/DC converters has been calculated using
Bellcore TR-NWT-000332 Case I: 50% stress, Operating Temperature at 40°C (Ground fixed and controlled environment ). The
resulting figure for MTBF is 1’330’000 hours.
MIL-HDBK 217F NOTICE2 FULL LOAD, Operating Temperature at 25°C. The resulting figure for MTBF is 563’000 hours.
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