TON 15 Series Application Note DC/DC Converter 18 to 36Vdc or 36 to 75 Vdc input, 3.3 to 15 Vdc Single Outputs, 15W Features • Lead free directive compatible • Low profile: 27.94 x 23.88 x 8.5mm (1.10 x 0.94 x 0.335 inch) • Industry standard pin-out TEN 15 series compatible • 2：1 wide input voltage of 18-36, 36-75VDC • 15 Watts output power • Input to output isolation: 2250Vdc, min for 60 seconds • Over-current protection, auto-recovery • Output over voltage protection • Under voltage lookout • Remote on/off control • Adjustable output voltage • ISO 9001 certified manufacturing facilities • UL60950-1 Recognized E188913 • EN 55022 class B / FCC class B conducted noise • Approved for basic insulation Applications • Distributed power architectures • Communication equipment • Computer equipment • Test equipment E188913 Option • Negative remote ON/OFF • Surface mount Complete TON 15 datasheet can be downloaded at: http://www.tracopower.com/products/ton15.pdf General Description TON 15 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 a wide input range, comprehensively protected against over-current, over-voltage and input under-voltage protection conditions, and adjustable output voltage. The TON 15 converters are especially suited to Network, Data processing, Wireless and Enterprise equipment and microprocessor, intermediate bus voltage power application. Table of contents Absolute Maximum Rating Output Specification Input Specification General Specification Characteristic Curves Thermal Consideration Short Circuitry Protection Output Over Current Protection Solder, Clearing and Drying Considerations EMC Consideration Created by Traco Electronic AG Arp. P2 P2 P3 P3 P4 - P11 P12 P12 P12 P13 P13 www.tracopower.com External Trim Adjustment Remove ON/OFF Control Test Configurations Mechanical Data Recommended Pad Layout Soldering and Reflow Considerations Packaging Information Part Number Structure Safety and Installation Instruction MTBF and Reliability th P14 P15 P16 P17 P18 P19 P20 P21 P21 P21 Date: September 24 , 2007 / Rev.: 1.2 / Page 1 / 21 Application Note 15W SINGLE OUTPUT Parameter Input Surge Voltage (100mS max) ABSOLUTE MAXIMUM RATINGS Device Min TON 15-24xx -0.3 TON 15-48xx -0.3 Input Voltage Variation All (complies with EST300 132 part 4.4) Operating Ambient Temperature Storage Temperature I/O Isolation Voltage Parameter Operating Output Range Voltage Adjustability (Note 1) Output Regulation Line (LL to HL at Full Load) Load (0% to 100% of Full Load) Output Ripple & Noise (Note 2) (With a 1uF M/C and a 10uF T/C at 20MHz bandwidth ) Temperature Coefficient Output Voltage Overshoot Transient Response Recovery Time All All All Output Over Voltage Protection (Control voltage clamp) Output Over Current Protection Max Capacitive Load Created by Traco Electronic AG Arp. -40 -55 2250 OUTPUT SPECIFICATIONS Device TON 15-xx10 TON 15-xx11 TON 15-xx12 TON 15-xx13 All All All 3,3V & 5V model 12V & 15V model All All Min 3.267 4.95 11.88 14.85 -10 TON 15-xx10 TON 15-xx11 TON 15-xx12 TON 15-xx13 TON 15-xx10 TON 15-xx11 TON 15-xx12 TON 15-xx13 TON 15-xx10 TON 15-xx11 TON 15-xx12 TON 15-xx13 TON 15-xx10 TON 15-xx11 TON 15-xx12 TON 15-xx13 www.tracopower.com Typ 3.3 5 12 15 -0.02 All (50% to 75% to 50% load change, ΔIo/Δt=0.1A/us) Output Current Typ Max 50 100 Unit Vdc Vdc 5 V/ms 85 125 °C ℃ Vdc Max 3.333 5.05 12.12 15.15 +10 Unit Vdc Vdc Vdc Vdc % 0.2 0.2 75 100 +0.02 3 % % 300 0 0 0 0 3.7 5.6 13.5 16.8 3.85 3.3 1.375 1.1 4.375 3.75 1.56 1.25 th mVp-p %/°C % µs 3.5 3.0 1.25 1.0 5.4 7.0 19.6 20.5 4.9 4.2 1.75 1.4 1000 1000 330 220 A A A A Vdc Vdc Vdc Vdc A A A A µF µF µF µF Date: September 24 , 2007 / Rev.: 1.2 / Page 2 / 21 Application Note 15W SINGLE OUTPUT INPUT SPECIFICATIONS Device TON 15-24xx TON 15-48xx TON 15-24xx TON 15-48xx TON 15-24xx TON 15-48xx All Parameter Operating Input Voltage Under Voltage Lockout Turn-on Threshold Under Voltage Lockout Turn-off Threshold Input reflected ripple current (Note 2) Start Up Time Power Up Remote ON/OFF Min 18 36 Typ 24 48 17 33 14.5 30.5 30 All All Max 36 75 Unit Vdc Vdc Vdc Vdc Vdc Vdc mA p-p 30 30 ms ms 1.2 15 15 1.2 Vdc Vdc Vdc Vdc Max (Test at Vin nom and constant resistive load) Remote ON/OFF (Note 3) Negative Logic DC-DC ON(Short) DC-DC OFF(Open) Positive Logic DC-DC ON(Open) DC-DC OFF(Short) Parameter Efficiency (Note 2) (Test at Vin,nom and full load) Isolation resistance Isolation Capacitance Switching Frequency (Test at Vin nom and full load) All All All All GENERAL SPECIFICATIONS Device Min TON 15-2410 TON 15-2411 TON 15-2412 TON 15-2413 TON 15-4810 TON 15-4811 TON 15-4812 TON 15-4813 All 10 All 3,3V & 5V model 12V & 15V model 1000 270 470 Unit % % % % % % % % MΩ pF KHz KHz All 300 µs All All 10.5 2.2×106 g hours Transient Response Recovery Time (50% to 75% to 50% load change, ΔIout/Δt = 0.1A/µs) Weight MTBF (Note 4) Note 1：Please see the external trim adjustment. Note 2：Please see the testing configurations part. Note 3：Please see the remote ON/OFF control part. Note 4：Please see the MTBF and reliability part. Created by Traco Electronic AG Arp. -0.7 3 3 -0.7 www.tracopower.com Typ 85 86 86 87 85 86 87 88 th Date: September 24 , 2007 / Rev.: 1.2 / Page 3 / 21 Application Note 15W SINGLE OUTPUT TON 15-2410 Characteristic Curves All test conditions are at 25°C. 87 86.5 90 Efficiency (%) 86 Efficiency (%) 85 80 36Vin 24Vin 18Vin 75 70 85.5 85 84.5 84 83.5 65 83 60 350 700 1050 1400 1750 2100 2450 2800 3150 18 3500 Output Current Iout (mA) 20 22 24 26 28 30 32 34 36 Input Voltage Vin (V) Efficiency η vs. Output Current Iout Efficiency η vs. Input Voltage Vin 4.00 Output Current (A) 3.50 3.00 2.50 2.00 Nature convection 1.0m/s(200LFM) 2.0m/s(400LFM) 3.0m/s(600LFM) 1.50 1.00 0.50 0.00 -40 -20 0 20 40 60 80 100 Conducted Emission according to EN55022 Class B Ambient Temperature TA (°C) Output voltage Output Voltage Input Voltage Load Derating vs. Ambient Temperature and Airflow Output voltage ON/OFF Voltage Output Voltage Using Extern ON/OFF Start-Up and Output Voltage Rise Created by Traco Electronic AG Arp. Typical Ripple and Noise at Vin = 24Vdc & Iout = 100% Output Current Typical Start-Up and Output Voltage Rise www.tracopower.com Transient Response Dynamic Load Change from 75% to 50% to 75% of Full Load th Date: September 24 , 2007 / Rev.: 1.2 / Page 4 / 21 Application Note 15W SINGLE OUTPUT TON 15-2411 Characteristic Curves All test conditions are at 25°C 90 87 86.5 85 Efficiency (%) Efficiency (%) 86 80 36Vin 24Vin 18Vin 75 70 85.5 85 84.5 84 65 83.5 60 83 300 600 900 1200 1500 1800 2100 2400 2700 3000 18 20 22 24 26 28 30 32 Output Current Iout (mA) Input Voltage Vin (V) Efficiency η vs. Output Current Iout Efficiency η vs. Input Voltage Vin 34 36 3.50 Output Current (A) 3.00 2.50 2.00 Nature convection 1.0m/s(200LFM) 2.0m/s(400LFM) 3.0m/s(600LFM) 1.50 1.00 0.50 0.00 -40 -20 0 20 40 60 80 100 Conducted Emission according to EN55022 Class B Ambient Temperature TA (°C) Output voltage Output Voltage Input Voltage Load Derating vs. Ambient Temperature and Airflow Typical Ripple and Noise at Vin = 24Vdc & Iout = 100% Output voltage Output voltage ON/OFF Voltage Output Current Typical Start-Up and Output Voltage Rise Using Extern ON/OFF Start-Up and Output Voltage Rise Created by Traco Electronic AG Arp. www.tracopower.com Transient Response Dynamic Load Change from 75% to 50% to 75% of Full Load th Date: September 24 , 2007 / Rev.: 1.2 / Page 5 / 21 Application Note 15W SINGLE OUTPUT TON 15-2412 Characteristic Curves All test conditions are at 25°C 90 87 86.5 85 Efficiency (%) Efficiency (%) 86 80 36Vin 24Vin 18Vin 75 70 85.5 85 84.5 84 65 83.5 83 60 125 250 375 500 625 750 875 1000 1125 18 1250 20 22 24 26 28 30 32 Output Current Iout (mA) Input Voltage Vin (V) Efficiency η vs. Output Current Iout Efficiency η vs. Input Voltage Vin 34 36 Output Current (A) 1.40 1.20 1.00 0.80 Nature convection 1.0m/s(200LFM) 2.0m/s(400LFM) 3.0m/s(600LFM) 0.60 0.40 0.20 0.00 -40 -20 0 20 40 60 80 100 Conducted Emission according to EN55022 Class B Ambient Temperature TA (°C) Output voltage Output Voltage Input Voltage Load Derating vs. Ambient Temperature and Airflow Typical Start-Up and Output Voltage Rise Output Current Output voltage ON/OFF Voltage Output voltage Using Extern ON/OFF Start-Up and Output Voltage Rise Created by Traco Electronic AG Arp. Typical Ripple and Noise at Vin = 24Vdc & Iout = 100% www.tracopower.com Transient Response Dynamic Load Change from 75% to 50% to 75% of Full Load th Date: September 24 , 2007 / Rev.: 1.2 / Page 6 / 21 Application Note 15W SINGLE OUTPUT TON 15-2413 Characteristic Curves All test conditions are at 25°C. 88 90 87.5 Efficiency (%) Efficiency (%) 85 80 36Vin 24Vin 18Vin 75 70 87 86.5 86 85.5 85 65 18 20 22 24 26 28 30 32 34 36 60 100 200 300 400 500 600 700 800 900 1000 Input Voltage Vin (V) Efficiency η vs. Input Voltage Vin Output Current Iout (mA) Efficiency η vs. Output Current Iout 1.20 Output Current (A) 1.00 0.80 Nature convection 1.0m/s(200LFM) 2.0m/s(400LFM) 3.0m/s(600LFM) 0.60 0.40 0.20 0.00 -40 -20 0 20 40 60 80 100 Conducted Emission according to EN55022 Class B Ambient Temperature TA (°C) Output voltage Input Voltage Output Voltage Load Derating vs. Ambient Temperature and Airflow Typical Ripple and Noise at Vin = 24Vdc & Iout = 100% Output voltage Output voltage ON/OFF Voltage Output Current Typical Start-Up and Output Voltage Rise Using Extern ON/OFF Start-Up and Output Voltage Rise Created by Traco Electronic AG Arp. www.tracopower.com Transient Response Dynamic Load Change from 75% to 50% to 75% of Full Load th Date: September 24 , 2007 / Rev.: 1.2 / Page 7 / 21 Application Note 15W SINGLE OUTPUT TON 15-4810 Characteristic Curves All test conditions are at 25°C 90 86 85 85.5 80 Efficiency (%) Efficiency (%) 85 75 70 75Vin 48Vin 36Vin 65 60 55 84.5 84 83.5 83 82.5 82 50 350 700 1050 1400 1750 2100 2450 2800 3150 36 3500 40 44 48 52 56 60 64 Output Current Iout (mA) Input Voltage Vin (V) Efficiency η vs. Output Current Iout Efficiency η vs. Input Voltage Vin 68 75 4.00 Output Current (A) 3.50 3.00 2.50 Nature convection 1.0m/s(200LFM) 2.0m/s(400LFM) 3.0m/s(600LFM) 2.00 1.50 1.00 0.50 0.00 -40 -20 0 20 40 60 80 100 Conducted Emission according to EN55022 Class B Ambient Temperature TA (°C) Output voltage Output Voltage Input Voltage Load Derating vs. Ambient Temperature and Airflow Typical Start-Up and Output Voltage Rise Output voltage Output voltage ON/OFF Voltage Output Current Typical Ripple and Noise at Vin = 48Vdc & Iout = 100% Using Extern ON/OFF Start-Up and Output Voltage Rise Created by Traco Electronic AG Arp. www.tracopower.com Transient Response Dynamic Load Change from 75% to 50% to 75% of Full Load th Date: September 24 , 2007 / Rev.: 1.2 / Page 8 / 21 Application Note 15W SINGLE OUTPUT TON 15-4811 Characteristic Curves 90 90 85 89 80 88 Efficiency (%) Efficiency (%) All test conditions are at 25°C. 75 70 75Vin 48Vin 36Vin 65 60 87 86 85 84 55 83 82 50 300 600 900 1200 1500 1800 2100 2400 2700 18 3000 Output Current Iout (mA) 20 22 24 26 28 30 32 34 36 Input Voltage Vin (V) Efficiency η vs. Output Current Iout Efficiency η vs. Input Voltage Vin 3.50 Output Current (A) 3.00 2.50 2.00 Nature convection 1.0m/s(200LFM) 2.0m/s(400LFM) 3.0m/s(600LFM) 1.50 1.00 0.50 0.00 -40 -20 0 20 40 60 80 100 Conducted Emission according to EN55022 Class B Ambient Temperature TA (°C) Output voltage Output Voltage Input Voltage Load Derating vs. Ambient Temperature and Airflow Typical Ripple and Noise at Vin = 48Vdc & Iout = 100% Output voltage Output voltage ON/OFF Voltage Output Current Typical Start-Up and Output Voltage Rise Using Extern ON/OFF Start-Up and Output Voltage Rise Created by Traco Electronic AG Arp. www.tracopower.com Transient Response Dynamic Load Change from 75% to 50% to 75% of Full Load th Date: September 24 , 2007 / Rev.: 1.2 / Page 9 / 21 Application Note 15W SINGLE OUTPUT TON 15-4812 Characteristic Curves All test conditions are at 25°C 88 87.5 90 87 Efficiency (%) 85 Efficiency (%) 80 75 75Vin 48Vin 36Vin 70 65 60 86.5 86 85.5 85 84.5 84 55 18 20 22 24 26 28 30 32 34 36 50 125 250 375 500 625 750 875 1000 1125 1250 Input Voltage Vin (V) Efficiency η vs. Input Voltage Vin Output Current Iout (mA) Efficiency η vs. Output Current Iout Output Current (A) 1.40 1.20 1.00 0.80 Nature convection 1.0m/s(200LFM) 2.0m/s(400LFM) 3.0m/s(600LFM) 0.60 0.40 0.20 0.00 -40 -20 0 20 40 60 80 100 Conducted Emission according to EN55022 Class B Ambient Temperature TA (°C) Output voltage Input Voltage Output Voltage Load Derating vs. Ambient Temperature and Airflow Typical Ripple and Noise at Vin = 48Vdc & Iout = 100% Output voltage Output voltage ON/OFF Voltage Output Current Typical Start-Up and Output Voltage Rise Using Extern ON/OFF Start-Up and Output Voltage Rise Created by Traco Electronic AG Arp. www.tracopower.com Transient Response Dynamic Load Change from 75% to 50% to 75% of Full Load th Date: September 24 , 2007 / Rev.: 1.2 / Page 10 / 21 Application Note 15W SINGLE OUTPUT TON 15-4813 Characteristic Curves All test conditions are at 25°C 90 90 85 89.5 89 Efficiency (%) Efficiency (%) 80 75 75Vin 48Vin 36Vin 70 65 60 88.5 88 87.5 87 86.5 86 85.5 55 85 50 100 200 300 400 500 600 700 800 900 18 1000 Output Current Iout (mA) 20 22 24 26 28 30 32 34 36 Input Voltage Vin (V) Efficiency η vs. Output Current Iout Efficiency η vs. Input Voltage Vin 1.20 Output Current (A) 1.00 0.80 Nature convection 1.0m/s(200LFM) 2.0m/s(400LFM) 3.0m/s(600LFM) 0.60 0.40 0.20 0.00 -40 -20 0 20 40 60 80 100 Conducted Emission according to EN55022 Class B Ambient Temperature TA (°C) Output voltage Output Voltage Input Voltage Load Derating vs. Ambient Temperature and Airflow Typical Start-Up and Output Voltage Rise Output voltage Output voltage ON/OFF Voltage Output Current Typical Ripple and Noise at Vin = 48Vdc & Iout = 100% Using Extern ON/OFF Start-Up and Output Voltage Rise Created by Traco Electronic AG Arp. www.tracopower.com Transient Response Dynamic Load Change from 75% to 50% to 75% of Full Load th Date: September 24 , 2007 / Rev.: 1.2 / Page 11 / 21 Application Note 15W SINGLE OUTPUT Thermal Consideration The power module operates in a variety of thermal environments; however, sufficient cooling should be provided to ensure reliable operation of the unit. Heat is removed by conduction, convention, and radiation to the surrounding environment. Proper cooling can be verified by measuring the point as shown at the figure below. The temperature at this position should not exceed 105°C. During operating, adequate cooling must be provided to maintain that the measured temperature at the temperature measure point is below or equal 105°C. Although the maximum temperature of the converter measured at the temperature measure point is 105°C. You can limit this temperature value at a lower value for extremely high reliability. Temperature Measure Point Output over current protection The converter has to be protected against output over current. Normally overload trigger point is at approximately 110~140% of rated output current. Hiccup-mode is a method of operation in a converter which purpose to protect the converter from being damaged during an over-current fault condition. It also enables the converter to restart when the fault is removed. There are other ways of protecting the converter when it is over-loaded, such as the maximum current limiting or current foldback methods. 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. The operation of hiccup is as follows. When the current sense circuit sees an over-current event, the controller shuts off the converter for a given time and then tries to restart again. If the over-load condition has been removed, the converter will start up and operate normally; otherwise, the controller will see another over-current event and shut off again, repeating the previous cycle. Hiccup operation has none of the drawbacks of the other two protection methods, although its circuit is more complicated because it requires a timing circuit. The excess heat due to overload lasts for only a short duration in the hiccup cycle, hence the junction temperature of the power devices is much lower. The hiccup operation can be done in various ways. For example, one can start hiccup operation any time an over-current event is detected; or prohibit hiccup during a designated start-up is usually larger than during normal operation and it is easier for an over-current event is detected; or prohibit hiccup during a designated start-up interval (usually a few milliseconds). The reason for the latter operation is that during start-up, the power supply needs to provide extra current to charge up the output capacitor. Thus the current demand during start-up is usually larger than during normal operation and it is easier for an over-current event to occur. If the converter starts hiccup once there is an over-current, it might never start up successfully. Hiccup mode protection will give the best protection for a converter against over current situations, since it will limit the average current to the load at a low level, so reducing power dissipation and case temperature in the power devices. Short Circuitry Protection Continuous, hiccup and auto-recovery mode. The average current during this condition is very low and due to that the device will be safe in this condition. Created by Traco Electronic AG Arp. www.tracopower.com th Date: September 24 , 2007 / Rev.: 1.2 / Page 12 / 21 Application Note 15W SINGLE OUTPUT EMC considerations Figure 1: Recommended circuit for EN55022 Conducted Noise Class B Figure 2 :Recommended Layout With Input Filter To meet conducted noise according to EN55022 CLASS B following components are needed C2,C3,C4: 2.2µF/100V MLCC C5: 470pF/3KV MLCC L1: Pulse Engineering type P0354 , 1.17mH L2: Inductor 10µH ψ0.35mm Created by Traco Electronic AG Arp. www.tracopower.com th Date: September 24 , 2007 / Rev.: 1.2 / Page 13 / 21 Application Note 15W SINGLE OUTPUT External trim adjustment Output voltage set point adjustment allows the user to increase or decrease the output voltage set point of a module by ±10% in maximum. 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 decreases. With an external resistor between the TRIM and -Vout pin, the output voltage set point increases. Trim up equation G×L RT 1 = − H Ω (Vo , up − L − K ) -Vout RT1 Trim RT2 +Vout -Vin +Vin Trim down equation (Vo , down − L ) × G RT 2 = − H Ω (Vo − Vo , down ) Trim constants Module G TON 15-××13 10000 TON 15-××12 10000 TON 15-××11 5110 TON 15-××10 5110 H 5110 5110 2050 2050 K 12.5 9.5 2.5 0.8 L 2.5 2.5 2.5 2.5 RT1 & RT2 List (Unit: KΩ) RT1 when trim up +1% +2% % of Vout TON 15-xx13 161.557 78.223 TON 15-xx12 203.223 99.057 TON 15-xx11 253.450 125.700 TON 15-xx10 385.071 191.511 +3% 50.446 64.334 83.117 126.990 +5% 28.223 36.557 49.050 75.374 +6% 22.668 29.612 40.533 62.470 +7% 18.700 24.652 34.450 53.253 +8% 15.723 20.932 29.888 46.340 +9% 13.409 18.038 26.339 40.963 +10% 11.557 15.723 23.500 36.662 RT2 when trim down -1% % of Vout TON 15-xx13 818.223 TON 15-xx12 776.557 TON 15-xx11 248.340 TON 15-xx10 116.719 -3% -4% -5% 262.668 193.223 151.557 248.779 182.807 143.223 78.007 56.715 43.940 34.133 23.810 17.616 -6% 123.779 116.834 35.423 13.486 -7% 103.938 97.985 29.340 10.537 -8% 89.057 83.848 24.778 8.325 -9% 77.483 72.853 21.229 6.604 -10% 68.223 64.057 18.390 5.228 -2% 401.557 380.723 120.590 54.779 Created by Traco Electronic AG Arp. +4% 36.557 46.973 61.825 94.730 www.tracopower.com th Date: September 24 , 2007 / Rev.: 1.2 / Page 14 / 21 Application Note 15W SINGLE OUTPUT Remote ON/OFF Control Two remote ON/OFF controls are available for TON 15 Positive logic remote ON/OFF turns the modules on during a logic-high voltage on the remote ON/OFF pin, and off during logic low. Negative logic remote ON/OFF turns the module off during logic high and on during logic low or when the remote ON/OFF pin is shorted to the -INPUT pin. The TON 15 series used a positive logic remote ON/OFF as standard. For the negative logic ON/OFF control add the suffix：" -N “ To turn the power module on and off, the user must supply a switch to control the voltage between the ON/OFF terminal (VON/OFF) and the -Vin. The switch may be an open collector or equivalent (see figures below). A logic low is VON/OFF = -0.7V to 1.2V. The maximum ION/OFF during a logic low is 1mA. The switch should maintain a logic-low voltage while sinking current is 1mA. During logic high, the maximum VON/OFF generated by the power module is 15V. The maximum allowable leakage current of the switch at Von/off = 15V is 50µA The module has internal capacitance to reduce noise at the ON/OFF pin. Additional capacitance is not generally needed and may degrade the start-up characteristics of the module. Figure as below details five possible circuits for driving the ON/OFF pin. ON/OFF Control ON/OFF Control ON/OFF Control -INPUT -INPUT -INPUT Positive Logic (Permanently Enabled) Negative Logic (Permanently Enabled) Remote Enable Circuit 5V ON/OFF Control TTL/ CMOS ON/OFF Control -INPUT -INPUT Open Collector Enable Circuit Created by Traco Electronic AG Arp. www.tracopower.com Negative Logic (Permanently Enabled) th Date: September 24 , 2007 / Rev.: 1.2 / Page 15 / 21 Application Note 15W SINGLE OUTPUT Testing Configurations Input reflected-ripple current measurement test up 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. Vout × Iout Efficiency η = × 100% Vin × Iin Created by Traco Electronic AG Arp. www.tracopower.com th Date: September 24 , 2007 / Rev.: 1.2 / Page 16 / 21 Application Note 15W SINGLE OUTPUT Mechanical Data 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 TRIM DOWN PIN TON 15 SERIES 1 2 3 4 5 6 + Vin (Vcc) - Vin (GND) + Vout Trim - Vout Remote On/Off PRODUCT STANDARD TABLE Option or 5 PIN CONNECTION RT2 Suffix TON Series with positive remote ON/OFF - TON Series with negative remote ON/OFF -N 4 Created by Traco Electronic AG Arp. www.tracopower.com th Date: September 24 , 2007 / Rev.: 1.2 / Page 17 / 21 Application Note 15W SINGLE OUTPUT Recommended Pad Layout Recommended pad layout for DIP type Recommended pad layout for SMD type Created by Traco Electronic AG Arp. www.tracopower.com th Date: September 24 , 2007 / Rev.: 1.2 / Page 18 / 21 Application Note 15W SINGLE OUTPUT Soldering and Reflow Considerations Lead free wave solder profile for DIP type Zone Preheat zone Actual heating 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 Lead free reflow profile for SMD type Zone Preheat zone Actual heating Cooling Created by Traco Electronic AG Arp. Reference Parameter. Rise temp. speed: 1~3°C/sec Preheat time: 60~90sec Preheat temp.155~185°C Rise temp. speed: 1~3°C/sec Melting time: 20~40 sec Melting temp: 220°C Peak temp.: 230~240°C Peak time: 10~20 sec Rise temp. speed: -1~-5°C/sec www.tracopower.com th Date: September 24 , 2007 / Rev.: 1.2 / Page 19 / 21 Application Note 15W SINGLE OUTPUT Packaging Informations Packaging information for DIP type Packaging information for SMD type Created by Traco Electronic AG Arp. www.tracopower.com th Date: September 24 , 2007 / Rev.: 1.2 / Page 20 / 21 Application Note 15W SINGLE OUTPUT Part Number Structure TON 15 – 2405 -N Total Output power 15 Watt Option Suffix Input Voltage Range 24xx : 18 ~ 36Vdc 48xx : 36 ~ 75Vdc Output Voltage 10: 3.3Vdc 11: 5.1Vdc 12: 12.0Vdc 13: 15.0Vdc Safety and Installation Instruction Isolation consideration The TON 15 series features 2250 Volt DC isolation from input to output. The input to output resistance is greater than 10megohms. Nevertheless, if the system using the power module needs to receive safety agency approval, certain rules must be followed in the design of the system using the model. In particular, all of the creepage and clearance requirements of the end-use safety requirement must be observed. These documents include IEC 60950, UL60950, EN60950-1 and CSA 22.2-950, although specific applications may have other or additional requirements. 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 5 A. 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 TON 15 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 1’315’000 hours. Created by Traco Electronic AG Arp. www.tracopower.com th Date: September 24 , 2007 / Rev.: 1.2 / Page 21 / 21