THN 20 Series Application Note

THN 20 Series
Application Note
DC/DC Converter 9 to 18Vdc and 18 to 36Vdc and 36 to 75Vdc input, 20 Watt Output
Power; 3.3 to 15Vdc Single Output and ±12Vdc to ±15Vdc Dual Output
Features
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Pending
Applications
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Wireless Network
Telecom/Datacom
Industry Control System
Measurement
Semiconductor Equipment
20 watts maximum output power
Ultra low quiescent current
Single output current up to 4.5A
Dual output current up to ±0.833A
2:1 wide input voltage range of 9-18Vdc, 18-36Vdc and 36-75Vdc
Six-sided continuous shield
Meet EN 55022 Class A without external Components
Industry standard pin-out THN 15 series compatible
High efficiency up to 91%
Low profile: 1.0X1.0X0.39 inch (25.4X25.4X9.9mm)
Fixed switching frequency
RoHS directive compliant
No minimum load
Input to output isolation: 1500Vdc min. for 1 minute
Input under-voltage protection
Output over-voltage protection
Over-current protection, auto-recovery
Output short circuit protection, auto-recovery
Remote ON/OFF control
Adjustable output voltage
Options
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Positive remote ON/OFF
ON/OFF control function
Trim function
Heat sinks available for extended operation
General Description
THN 20 single output and dual output DC/DC converters provide up to 20 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 2:1 wide input
voltage of 9-18Vdc, 18-36Vdc and 36-75Vdc, 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
Environmental Specifications
EMC Characteristics
Characteristic Curves
Testing Configurations
EMI Consideration
Input Source Impedance
Output Over Current Protection
Output Over Voltage Protection
Created by Traco Electronic AG Arp.
P2
P2 & P3
P3 & P4
P4
P5
P5
P6 – P41
P42
P43 – P45
P45
P45
P45
Output Voltage Adjustment
Short Circuitry Protection
Thermal Consideration
Heat Sink Consideration
Remote ON/OFF Control
Mechanical Data
Recommended Pad Layout
Soldering Considerations
Packaging Information
Part Number Structure
Safety and Installation Instruction
MTBF and Reliability
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P46
P47
P47
P47
P48
P49
P50
P50
P51
P51
P52
P52
Date: September 30 , 2010 / Rev.: 1.1 / Page 1 / 52
Application Note
20W Single & Dual Output
Absolute Maximum Rating
Parameter
Model
Input Voltage
Continuous
Transient (1 sec max.)
Operating Ambient Temperature (with derating)*
Operating Case Temperature
Storage Temperature
Min
THN 20-12xx
THN 20-24xx
THN 20-48xx
THN 20-12xx
THN 20-24xx
THN 20-48xx
All
-40
All
-55
Max
Unit
18
36
75
25
50
100
+101
+105
+125
Vdc
°C
°C
°C
* Test condition with vertical direction by natural convection (20LFM).
Output Specification
Parameter
Output Voltage Range
(Vin = Vin nom; Full Load; TA = 25°C)
Voltage Adjustability (See Page 46)
Output Regulation
Line (Vin min to Vin max at Full Load) Single Output
Line (Vin min to Vin max at Full Load) Dual Output
Load (0% to 100% of Full Load) Single Output
Load (10% to 90% of Full Load) Single Output
Load (0% to 100% of Full Load) Dual Output
Load (10% to 90% of Full Load) Dual Output
Output Ripple & Noise (See Page 42)
Peak-to-Peak (20MHz bandwidth)
(Measured with a 1μF M/C X7R and a 10μF T/C )
Temperature Coefficient
Output Voltage Overshoot
(Vin min to Vin max; Full Load ; TA = 25°C)
Dynamic Load Response
(Vin min to Vin max; 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
Created by Traco Electronic AG Arp.
Model
THN 20-xx10
THN 20-xx11
THN 20-xx12
THN 20-xx13
THN 20-xx22
THN 20-xx23
All
All
THN 20-xx10
THN 20-xx11
THN 20-xx12
THN 20-xx13
THN 20-xx22
THN 20-xx23
All
Min
3.267
4.95
11.88
14.85
±11.88
±14.85
-10
Typ
3.3
5
12
15
±12
±15
-0.2
-0.5
-0.2
-0.1
-1.0
-0.8
+0.2
+0.5
+0.2
+0.1
+1.0
+0.8
75
75
100
100
100
100
-0.02
All
All
All
THN 20-xx10
THN 20-xx11
THN 20-xx12
THN 20-xx13
THN 20-xx22
THN 20-xx23
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Max
3.333
5.05
12.12
15.15
±12.12
±15.15
+10
%
%
+0.02
%/°C
5
% Vout
mV
μS
4500
4000
1670
1330
±833
±667
th
Vdc
mV pk-pk
350
250
0
0
0
0
0
0
Unit
mA
Date: May 31 , 2013 / Rev.: 1.2 / Page 2 / 52
Application Note
20W Single & Dual Output
Output Specification (continue)
Parameter
Output Over Voltage Protection
(Voltage Clamped)
Output Over Current Protection
Output Short Circuit Protection
Model
THN 20-xx10
THN 20-xx11
THN 20-xx12
THN 20-xx13
THN 20-xx22
THN 20-xx23
All
All
Min
3.7
5.6
13.5
16.8
±13.5
±16.8
Typ
Max
5.4
7.0
19.6
20.5
±19.6
±20.5
Unit
Vdc
150
% FL.
Hiccup, automatics recovery
Input Specification
Parameter
Operating Input Voltage
Input Standby Current
(Typical value at Vin = Vin nom; No Load)
Under Voltage Lockout Turn-on Threshold
Under Voltage Lockout Turn-off Threshold
Input Reflected Ripple Current (See Page 42)
(5 to 20MHz, 12μH source impedance)
Start Up Time
(Vin = Vin nom and constant resistive load)
Power up
Remote ON/OFF
Created by Traco Electronic AG Arp.
Model
THN 20-12xx
THN 20-24xx
THN 20-48xx
THN 20-1210
THN 20-1211
THN 20-1212
THN 20-1213
THN 20-1222
THN 20-1223
THN 20-2410
THN 20-2411
THN 20-2412
THN 20-2413
THN 20-2422
THN 20-2423
THN 20-4810
THN 20-4811
THN 20-4812
THN 20-4813
THN 20-4822
THN 20-4823
THN 20-12xx
THN 20-24xx
THN 20-48xx
THN 20-12xx
THN 20-24xx
THN 20-48xx
All
Min
9
18
36
Typ
12
24
48
10
10
10
10
10
10
6
6
6
6
6
6
4
4
4
4
4
4
Unit
Vdc
mA
9
18
36
Vdc
8
16
33
Vdc
30
mA mk-pk
All
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Max
18
36
75
30
30
th
mS
Date: May 31 , 2013 / Rev.: 1.2 / Page 3 / 52
Application Note
20W Single & Dual Output
Input Specification (continue)
Parameter
Remote ON/OFF Control (See Page 48)
(The ON/OFF pin voltage is referenced to -Vin)
Negative Logic DC-DC ON (Short)
DC-DC OFF(Open)
Positive Logic DC-DC ON (Open)
DC-DC OFF(Short)
Remote Off Input Current
Input Current of Remote Control Pin
Model
All
All
All
Min
Typ
0
3
3
0
Max
1.2
15
15
1.2
2.0
-0.5
1.0
Unit
Vdc
mA
mA
General Specification
Parameter
Efficiency (See Page 42)
(Vin = Vin nom; Full Load; TA = 25°C)
Isolation Voltage (for 60 seconds)
Input to Output
Input / Output to Case
Isolation Resistance
Isolation Capacitance
Switching Frequency
Weight
MTBF (See Page 52)
Bellcore TR-NWT-000332, TC = 40°C
MIL-HDBK-217F
Case Material
Base Material
Potting Material
Model
THN 20-1210
THN 20-1211
THN 20-1212
THN 20-1213
THN 20-1222
THN 20-1223
THN 20-2410
THN 20-2411
THN 20-2412
THN 20-2413
THN 20-2422
THN 20-2423
THN 20-4810
THN 20-4811
THN 20-4812
THN 20-4813
THN 20-4822
THN 20-4823
Min
All
1’500
1’000
1
All
All
All
All
All
Dimensions
Created by Traco Electronic AG Arp.
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Typ
86
89
89
89
89
90
87
90
90
91
90
90
87
89
90
90
89
90
Max
Unit
%
Vdc
1500
330
15
1’766’000
553’000
Nickel-coated copper
FR4 PCB
Silicon (UL94-V0)
25.4 X 25.4 X 9.9mm
(1.0 X 1.0 X 0.39 Inch)
th
GΩ
pF
KHz
g
hours
Date: May 31 , 2013 / Rev.: 1.2 / Page 4 / 52
Application Note
20W Single & Dual Output
Environmental Specifications
Thermal shock
Vibration
Relative humidity
MIL-STD-810F
MIL-STD-810F
5% to 95% RH
EMC Characteristics
EMI (See Page 43 - 45)
EN55022
ESD
EN61000-4-2
Radiated immunity
Fast transient (Burst)*
Surge*
Conducted immunity
EN61000-4-3
EN61000-4-4
EN61000-4-5
EN61000-4-6
Class B
Air
±8KV
Contact ±6KV
10 V/m
±2KV
±2KV
10 Vr.m.s
Performance Criteria A
Performance Criteria A
Performance Criteria A
Performance Criteria A
Performance Criteria A
* An external input filter capacitor is required if the module has to meet EN61000-4-4, EN61000-4-5.
We suggest to use following filter capacitor: Nippon Chemi-Con KY-series, 220μF/100V, ESR 48mΩ.
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 5 / 52
Application Note
20W Single & Dual Output
Characteristic Curves
All test conditions are at 25°C. The figures are identical for THN 20-1210
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature with Airflow
Vin = Vin nom
Derating Output Current Versus Ambient Temperature with
Heat Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 6 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THD 20-1210
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin = Vin nom
Typical Output Ripple and Noise.
Vin = Vin nom, Full Load
Typical Input Start-Up and Output Rise Characteristic
Vin = Vin nom, Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class A
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class B
Vin = Vin nom, Full Load
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 7 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-1211
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature with Airflow
Vin = Vin nom
Derating Output Current Versus Ambient Temperature with
Heat Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 8 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-1211
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin = Vin nom
Typical Output Ripple and Noise.
Vin = Vin nom, Full Load
Typical Input Start-Up and Output Rise Characteristic
Vin = Vin nom, Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class A
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class B
Vin = Vin nom, Full Load
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 9 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-1212
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature with Airflow
Vin = Vin nom
Derating Output Current Versus Ambient Temperature with
Heat Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 10 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-1212
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin = Vin nom
Typical Output Ripple and Noise.
Vin = Vin nom, Full Load
Typical Input Start-Up and Output Rise Characteristic
Vin = Vin nom, Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class A
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class B
Vin = Vin nom, Full Load
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 11 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-1213
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature with Airflow
Vin = Vin nom
Derating Output Current Versus Ambient Temperature with
Heat Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 12 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-1213
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin = Vin nom
Typical Output Ripple and Noise.
Vin = Vin nom, Full Load
Typical Input Start-Up and Output Rise Characteristic
Vin = Vin nom, Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class A
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class B
Vin = Vin nom, Full Load
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 13 / 52
Application Note
20W Single & Dual Output
Characteristic Curves
All test conditions are at 25°C. The figures are identical for THN 20-1222
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature with Airflow
Vin = Vin nom
Derating Output Current Versus Ambient Temperature with
Heat Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 14 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-1222
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin = Vin nom
Typical Output Ripple and Noise.
Vin = Vin nom, Full Load
Typical Input Start-Up and Output Rise Characteristic
Vin = Vin nom, Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class A
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class B
Vin = Vin nom, Full Load
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 15 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-1223
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature with Airflow
Vin = Vin nom
Derating Output Current Versus Ambient Temperature with
Heat Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 16 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-1223
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin = Vin nom
Typical Output Ripple and Noise.
Vin = Vin nom, Full Load
Typical Input Start-Up and Output Rise Characteristic
Vin = Vin nom, Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class A
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class B
Vin = Vin nom, Full Load
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 17 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-2410
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature with Airflow
Vin = Vin nom
Derating Output Current Versus Ambient Temperature with
Heat Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 18 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-2410
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin = Vin nom
Typical Output Ripple and Noise.
Vin = Vin nom, Full Load
Typical Input Start-Up and Output Rise Characteristic
Vin = Vin nom, Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class A
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class B
Vin = Vin nom, Full Load
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 19 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-2411
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature with Airflow
Vin = Vin nom
Derating Output Current Versus Ambient Temperature with
Heat Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 20 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-2411
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin = Vin nom
Typical Output Ripple and Noise.
Vin = Vin nom, Full Load
Typical Input Start-Up and Output Rise Characteristic
Vin = Vin nom, Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class A
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class B
Vin = Vin nom, Full Load
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 21 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-2412
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature with Airflow
Vin = Vin nom
Derating Output Current Versus Ambient Temperature with
Heat Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 22 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-2412
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin = Vin nom
Typical Output Ripple and Noise.
Vin = Vin nom, Full Load
Typical Input Start-Up and Output Rise Characteristic
Vin = Vin nom, Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class A
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class B
Vin = Vin nom, Full Load
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 23 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-2413
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature with Airflow
Vin = Vin nom
Derating Output Current Versus Ambient Temperature with
Heat Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 24 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-2413
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin = Vin nom
Typical Output Ripple and Noise.
Vin = Vin nom, Full Load
Typical Input Start-Up and Output Rise Characteristic
Vin = Vin nom, Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class A
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class B
Vin = Vin nom, Full Load
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 25 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-2422
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature with Airflow
Vin = Vin nom
Derating Output Current Versus Ambient Temperature with
Heat Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 26 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-2422
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin = Vin nom
Typical Output Ripple and Noise.
Vin = Vin nom, Full Load
Typical Input Start-Up and Output Rise Characteristic
Vin = Vin nom, Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class A
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class B
Vin = Vin nom, Full Load
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 27 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-2423
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature with Airflow
Vin = Vin nom
Derating Output Current Versus Ambient Temperature with
Heat Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 28 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-2423
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin = Vin nom
Typical Output Ripple and Noise.
Vin = Vin nom, Full Load
Typical Input Start-Up and Output Rise Characteristic
Vin = Vin nom, Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class A
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class B
Vin = Vin nom, Full Load
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 29 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-4810
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature with Airflow
Vin = Vin nom
Derating Output Current Versus Ambient Temperature with
Heat Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 30 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-4810
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin = Vin nom
Typical Output Ripple and Noise.
Vin = Vin nom, Full Load
Typical Input Start-Up and Output Rise Characteristic
Vin = Vin nom, Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class A
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class B
Vin = Vin nom, Full Load
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 31 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-4811
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature with Airflow
Vin = Vin nom
Derating Output Current Versus Ambient Temperature with
Heat Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 32 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-4811
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin = Vin nom
Typical Output Ripple and Noise.
Vin = Vin nom, Full Load
Typical Input Start-Up and Output Rise Characteristic
Vin = Vin nom, Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class A
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class B
Vin = Vin nom, Full Load
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 33 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-4812
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature with Airflow
Vin = Vin nom
Derating Output Current Versus Ambient Temperature with
Heat Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 34 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-4812
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin = Vin nom
Typical Output Ripple and Noise.
Vin = Vin nom, Full Load
Typical Input Start-Up and Output Rise Characteristic
Vin = Vin nom, Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class A
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class B
Vin = Vin nom, Full Load
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 35 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-4813
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature with Airflow
Vin = Vin nom
Derating Output Current Versus Ambient Temperature with
Heat Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 36 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-4813
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin = Vin nom
Typical Output Ripple and Noise.
Vin = Vin nom, Full Load
Typical Input Start-Up and Output Rise Characteristic
Vin = Vin nom, Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class A
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class B
Vin = Vin nom, Full Load
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 37 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-4822
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature with Airflow
Vin = Vin nom
Derating Output Current Versus Ambient Temperature with
Heat Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 38 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-4822
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin = Vin nom
Typical Output Ripple and Noise.
Vin = Vin nom, Full Load
Typical Input Start-Up and Output Rise Characteristic
Vin = Vin nom, Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class A
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class B
Vin = Vin nom, Full Load
Created by Traco Electronic AG Arp.
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th
Date: May 31 , 2013 / Rev.: 1.2 / Page 39 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-4823
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature with Airflow
Vin = Vin nom
Derating Output Current Versus Ambient Temperature with
Heat Sink and Airflow, Vin = Vin nom
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 40 / 52
Application Note
20W Single & Dual Output
Characteristic Curves (Continued)
All test conditions are at 25°C. The figures are identical for THN 20-4823
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin = Vin nom
Typical Output Ripple and Noise.
Vin = Vin nom, Full Load
Typical Input Start-Up and Output Rise Characteristic
Vin = Vin nom, Full Load
Using ON/OFF Voltage Start-Up and Vout Rise Characteristic
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class A
Vin = Vin nom, Full Load
Conduction Emission of EN55022 Class B
Vin = Vin nom, Full Load
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 41 / 52
Application Note
20W Single & Dual Output
Testing Configurations
Input reflected-ripple current measurement test up
CURRENT PROBE MEASURE 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 
Efficiency   o
  100%
 Vin  I in 
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 42 / 52
Application Note
20W Single & Dual Output
EMI considerations
Suggested schematic to comply with EN55022 Class B limits
Recommended layout
To comply with EN55022 CLASS B following components are recommended:
THN 20-121x
Component
C1
C2, C3
C4, C5
L1
Value
4.7μF
---470pF
325μH
Voltage
25V
---2KV
----
Reference
1812 MLCC
---1808 MLCC
Common Choke, P/N: TCK-050
THN 20-241x
Component
C1
C2, C3
C4, C5
L1
Value
4.7μF
---470pF
325μH
Voltage
50V
---2KV
----
Reference
1812 MLCC
---1808 MLCC
Common Choke, P/N: TCK-050
THN 20-481x
Component
C1, C2
C3
C4, C5
L1
Value
2.2μF
2.2μF
1000pF
325μH
Voltage
100V
100V
2KV
----
Reference
1812 MLCC
1812 MLCC
1808 MLCC
Common Choke, P/N: TCK-050
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 43 / 52
Application Note
20W Single & Dual Output
EMI Considerations
Suggested schematic to comply with EN55022 Class B limits
Recommended layout
To comply with EN55022 CLASS B following components are recommended:
THN 20-122x
Component
C1
C2, C3
C4, C5
L1
Value
4.7μF
---470pF
325μH
Voltage
25V
---2KV
----
Reference
1812 MLCC
---1808 MLCC
Common Choke, P/N: TCK-050
THN 20-242x
Component
C1
C2, C3
C4, C5
L1
Value
4.7μF
---470pF
325μH
Voltage
50V
---2KV
----
Reference
1812 MLCC
---1808 MLCC
Common Choke, P/N: TCK-050
THN 20-482x
Component
C1, C2
C3
C4, C5
L1
Value
2.2μF
2.2μF
1000pF
325μH
Voltage
100V
100V
2KV
----
Reference
1812 MLCC
1812 MLCC
1808 MLCC
Common Choke, P/N: TCK-050
Created by Traco Electronic AG Arp.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 44 / 52
Application Note
20W Single & Dual Output
EMI considerations (Continued)
This Common Choke L1 has been define as follow:
■ TCK-050
L: 325mH ±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
If 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 20 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 Schottky 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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Date: May 31 , 2013 / Rev.: 1.2 / Page 45 / 52
Application Note
20W Single & Dual Output
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


GL
RU  
 H
 VO ,up  L  K 



-Vout
Trim down equation
RU
 VO , down  L   G

RD  
 H
 VO  VO , down 

Trim constants
Module
G
THN 20-xx10
THN 20-xx11
THN 20-xx12
THN 20-xx13
TRIM TABLE
THN 20-xx10
Trim up (%)
VOUT (Volts) =
RU (KΩ) =
Trim down (%)
VOUT (Volts) =
RD (KΩ) =
5110
5110
10000
10000
-Vin
Trim
+Vin
H
K
L
RD
2050
2050
5110
5110
0.8
2.5
9.5
12.5
2.5
2.5
2.5
2.5
+Vout
1
2
3
3.333
3.366
3.399
385.071 191.511 126.990
1
2
3
3.267
3.234
3.201
116.719 54.779 34.133
4
3.432
94.730
4
3.168
23.810
5
3.465
75.374
5
3.135
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
THN 20-xx11
Trim up (%)
VOUT (Volts) =
RU (KΩ) =
Trim down (%)
VOUT (Volts) =
RD (KΩ) =
1
2
5.050
5.100
253.450 125.700
1
2
4.950
4.900
248.340 120.590
4
5.200
61.825
4
4.800
56.715
5
5.250
49.050
5
4.750
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
THN 20-xx12
Trim up (%)
VOUT (Volts)=
RU (KΩ)=
Trim down (%)
VOUT (Volts)=
RD (KΩ)=
1
2
3
4
5
6
12.120 12.240 12.360 12.480 12.600 12.720
203.223 99.057 64.334 46.973 36.557 29.612
1
2
3
4
5
6
11.880 11.760 11.640 11.520 11.400 11.280
776.557 380.723 248.779 182.807 143.223 116.834
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
THN 20-xx13
Trim up (%)
VOUT (Volts)=
RU (KΩ)=
Trim down (%)
VOUT (Volts)=
RD (KΩ)=
1
2
3
4
5
6
7
15.150 15.300 15.450 15.600 15.750 15.900 16.050
161.557 78.223 50.446 36.557 28.223 22.668 18.700
1
2
3
4
5
6
7
14.850 14.700 14.550 14.400 14.250 14.100 13.950
818.223 401.557 262.668 193.223 151.557 123.779 103.938
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
Created by Traco Electronic AG Arp.
3
5.150
83.117
3
4.850
78.007
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Date: May 31 , 2013 / Rev.: 1.2 / Page 46 / 52
Application Note
20W Single & Dual Output
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 for lower temperature and higher reliability of the module. Considering space and air-flow is the way to choose
which heat sink is needed.
There are two types for choosing
Suffix –HC: Heat Sink mounted with Clamp
Suffix –HS: Heat Sink
All dimensions in millimeters
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Date: May 31 , 2013 / Rev.: 1.2 / Page 47 / 52
Application Note
20W Single & Dual Output
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
There are two remote control options available, positive logic and negative logic.
a. 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.
When THN 20 module is turned off at Low-level logic
When THN 20 module is turned on at High-level logic
b. The Negative logic structure turned on of the DC/DC module when the ON/OFF pin is at low-level logic and turned off when
at high-level logic.
When THN 20 module is turned on at Low-level logic
Created by Traco Electronic AG Arp.
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When THN 20 module is turned off at High-level logic
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Date: May 31 , 2013 / Rev.: 1.2 / Page 48 / 52
Application Note
20W Single & Dual Output
Mechanical Data
PIN CONNECTION
PIN
THN 20 SERIES
1
2
3
4
5
6
+ INPUT
- INPUT
ON/OFF
+VOUT
TRIM
-VOUT
1. All dimensions in inches(mm)
Tolerance: x.xx ±0.02 (x.x ±0.5)
x.xxx ±0.01 (x.xx ±0.25)
2. Pin pitch tolerance: ±0.01 (±0.25)
3. Pin dimension tolerance: ±0.004 (±0.1)
EXTERNAL OUTPUT TRIMMING
Output can be externally trimmed by
using the method shown below.
TRIM UP
6
TRIM DOWN
5
RU
5
RD
PRODUCT STANDARD TABLE
Option
Positive remote ON/OFF (Standard)
Negative remote ON/OFF
without ON/OFF pin
negative remote ON/OFF without TRIM pin
without ON/OFF & TRIM pin
positive remote ON/OFF without TRIM pin
Suffix
-N
-B
-C
-D
-E
4
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Date: May 31 , 2013 / Rev.: 1.2 / Page 49 / 52
Application Note
20W Single & Dual Output
Recommended Pad Layout
Soldering Considerations
Lead free wave solder profile for THN 20 – SERIES
Zone
Reference Parameter.
Preheat zone
Rise temperature speed:
Preheat temperature:
Peak temperature:
Peak time (T1+T2 time):
Actual heating
Reference Solder: Sn-Ag-Cu:
Hand Welding:
Soldering iron:
Welding Time:
Temperature:
Created by Traco Electronic AG Arp.
3°C/sec max.
100~130°C
250~260°C
4~6 sec
Sn-Cu
Power 90W
2~4 sec
380~400°C
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Date: May 31 , 2013 / Rev.: 1.2 / Page 50 / 52
Application Note
20W Single & Dual Output
Packaging Information
300
26.5
19
6
All dimensions in millimeters
10 PCS per TUBE
Part Number Structure
THN
10: 3.3Vdc
11: 5,0Vdc
12: 12Vdc
Model
Number
THN 20-1210
THN 20-1211
THN 20-1212
THN 20-1213
THN 20-1222
THN 20-1223
THN 20-2410
THN 20-2411
THN 20-2412
THN 20-2413
THN 20-2422
THN 20-2423
THN 20-4810
THN 20-4811
THN 20-4812
THN 20-4813
THN 20-4822
THN 20-4823
20
12
11
13: 15Vdc
22: ±12Vdc
23: ±15Vdc
Input
Range
9 – 18Vdc
9 – 18Vdc
9 – 18Vdc
9 – 18Vdc
9 – 18Vdc
9 – 18Vdc
18 - 36Vdc
18 - 36Vdc
18 - 36Vdc
18 - 36Vdc
18 - 36Vdc
18 - 36Vdc
36 - 75Vdc
36 - 75Vdc
36 - 75Vdc
36 - 75Vdc
36 - 75Vdc
36 - 75Vdc
Output
Voltage
3.3Vdc
5Vdc
12Vdc
15Vdc
±12Vdc
±15Vdc
3.3Vdc
5Vdc
12Vdc
15Vdc
±12Vdc
±15Vdc
3.3Vdc
5Vdc
12Vdc
15Vdc
±12Vdc
±15Vdc
Output Current
Full Load
4500mA
4000mA
1670mA
1330mA
±833mA
±667mA
4500mA
4000mA
1670mA
1330mA
±833mA
±667mA
4500mA
4000mA
1670mA
1330mA
±833mA
±667mA
No Load (1)
Input Current
10mA
10mA
10mA
10mA
10mA
10mA
10mA
10mA
10mA
10mA
10mA
10mA
10mA
10mA
10mA
10mA
10mA
10mA
Efficiency (2)
(%)
86
89
89
89
89
90
87
90
90
91
90
90
87
89
90
90
90
90
Note 1. Typical value at nominal input voltage and no load.
Note 2. Typical value at nominal input voltage and full load.
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Date: May 31 , 2013 / Rev.: 1.2 / Page 51 / 52
Application Note
20W Single & Dual Output
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 slow-blow fuse with
maximum rating of 4A for THN 20-12xx modules and 2A for THN 20-24xx modules and 1A for THN 20-48xx 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 20 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 1’766’000 hours.
MIL-HDBK 217F NOTICE2 FULL LOAD, Operating Temperature at 25°C. The resulting figure for MTBF is 553’000 hours.
Created by Traco Electronic AG Arp.
www.tracopower.com
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Date: May 31 , 2013 / Rev.: 1.2 / Page 52 / 52