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8.1 Mounting method

Fig.8.1

Mounting method

When implementing the power supply to the printed circuit board, please fix the power

supply to the printed circuit board by screw before the soldering.

If it is screwed to the substrate after soldering, there is a possibility of failure by adding

mechanical stress to the soldering point and the internal connections of power supply.

A-17

Heat sink

Heat sink

retention screws

Silicone grease

/ Heat dissipation sheet

Power supply

Power supply

retention screws

Power supply

soldering

printed circuit board

2.1 Pin configuration

8. Mounting method

Applications Manual 

TUNS300/500/700

Содержание TUNS300

Страница 1: ...SA For more information please contact FORTEC Elektronik AG Hauptniederlassung Lechwiesenstr 9 86899 Landsberg am Lech Telefon 49 0 8191 91172 0 Telefax 49 0 8191 21770 E Mail sales fortecag de Intern...

Страница 2: ...Rev 1 4E 08 Jan 2016 Applications Manual for TUNS300 500 700...

Страница 3: ...Design Examples of Convection cooling Examples of Forced air cooling 10 Board layout Consideration for board layout Reference PCB layout 11 Example of which reduces EMI Means of the EMI reduction Swit...

Страница 4: ...or FG Mounting hole FG S Remote sensing TRM Adjustment of output voltage VOUT DC output S Remote sensing BC BC output VOUT DC output R External resistor for inrush current protection BC BC output No P...

Страница 5: ...DC63V 470uF ELXZ630ELL471 Nippon Chemi Con DC63V 470uF ELXZ630ELL471 Nippon Chemi Con F12 DC25V 10uF GRM31CR71E106 Murata Manufacturing DC25V 10uF GRM31CR71E106 Murata Manufacturing DC25V 10uF GRM31CR...

Страница 6: ...ed the power supply or external components could be damaged When selecting a capacitor check the maximum allowable ripple current Ripple current includes low frequency component input frequency and hi...

Страница 7: ...e safety standards as CY 2 5 Output capacitors Co C40 Install an external capacitor Co between VOUT and VOUT pins for stable operation of the power supply Recommended capacitance of Co is shown in Tab...

Страница 8: ...7 Capacitor for boost voltage C20 C30 Install film capacitors with a rating of 1uF DC450V or higher as C20 and C30 If C20 and C30 are not connected the power supply or external components could be dam...

Страница 9: ...e impedance Vin Input voltage rms Ip Primary Inrush current peak Calculation of required surge capacity Required surge capacity can be calculated using the following formula Please contact to the comp...

Страница 10: ...n a necessary resistance of R1 and total capacitance of input interphase capacitors And the data of Fig 2 6 is the values that assumed the worst condition Please keep margin for rated voltage and powe...

Страница 11: ...ure fluctuations as narrow as possible if temperature often fluctuates Fig 3 1 TUNS300F Output current derating Fig 3 2 TUNS500F Output current derating Fig 3 3 TUNS700F Output current derating A 8 In...

Страница 12: ...and Input voltage derating A 9 In case of both Input voltage derating and load derating are required please multiply respective mitigation rate see Fig 3 5 Fig 3 6 Input voltage derating and Input vo...

Страница 13: ...t temperature therefore cermet type potentiometer 300ppm and metallic film resistor 100ppm are recommended Connection devices outside the power supply Output voltage 12V 28V 48V Output voltage adjustm...

Страница 14: ...nal components it is recommended that you adjust the potentiometer Output voltage decreasing Output voltage increasing A 11 TRM RU VOUT VOUT RT 2 7k Shunt regulator Vref S S TRM RD VOUT VOUT RT 2 7k S...

Страница 15: ...flow through TRM terminal Output voltage adjustment by external voltage VTRM Output voltage Calculating formula A 12 The output voltage can be adjustable by applying voltage between the TRM terminal a...

Страница 16: ...n parallel operation increases input current increases Adequate wiring design for input circuitry such as circuit pattern wiring and current for equipment is required If temperatures of aluminum base...

Страница 17: ...actual operating condition And check the maximum allowable ripple current of the capacitor Fig 6 1 and Fig 6 2 shows the relationship between ripple voltage of boost voltage and temperature Vin AC85V...

Страница 18: ...Fig 6 2 TUNS700F Relationship between ripple voltage of boost voltage and temperature Vin AC85V A 15 Applications Manual TUNS300 500 700...

Страница 19: ...bc Fig 7 1 Fig 7 2 and Fig 7 3 show the relationship between holdup time and output current within the allowable capacitance of Cbc A 16 10 100 1000 0 20 40 60 80 100 120 Output current H o ld u p t i...

Страница 20: ...d to the substrate after soldering there is a possibility of failure by adding mechanical stress to the soldering point and the internal connections of power supply A 17 Heat sink Heat sink retention...

Страница 21: ...ns on our website Please consider this example as a design guideline because it changes by the heat dissipation environment Please measure the temperature of the actual equipment eventually 2 1 Pin co...

Страница 22: ...UNS300F result Fig 9 4 TUNS500F result Fig 9 5 TUNS700F result Maximum ambient temperature is limited at 70 MAX to be considered the life of the electrolytic capacitor A 19 Applications Manual TUNS300...

Страница 23: ...If it is difficult to measure the center of the baseplate please measure the leeward side of the baseplate edge A 20 Full brick size heatsink Mounting surface with heat dissipation sheet 117 61 23mm A...

Страница 24: ...300F12 result Fig 9 9 TUNS300F28 result Fig 9 10 TUNS300F48 result Maximum ambient temperature is limited at 70 MAX to be considered the life of the electrolytic capacitor A 21 Applications Manual TUN...

Страница 25: ...500F12 result Fig 9 12 TUNS500F28 result Fig 9 13 TUNS500F48 result Maximum ambient temperature is limited at 70 MAX to be considered the life of the electrolytic capacitor A 22 Applications Manual TU...

Страница 26: ...700F12 result Fig 9 15 TUNS700F28 result Fig 9 16 TUNS700F48 result Maximum ambient temperature is limited at 70 MAX to be considered the life of the electrolytic capacitor A 23 Applications Manual TU...

Страница 27: ...requirements vary based on different safety standards and conditions of usage Please place the components and wiring pattern according to those safety standards A 24 The potential voltage of each term...

Страница 28: ...cuit board please pay attention to the distance between the base plate and electrolytic capacitor Exterior of the electrolytic capacitor is assumed to be the same potential as the negative electrode H...

Страница 29: ...pends on the place of the FG connection Recommend connecting Y capacitor to the FG terminal of the power supply as close as possible Please evaluate before use Huge ripple current flows into the capac...

Страница 30: ...s of the power supply is not connected properly malfunction or failure could happen Expose the solder mask around the hole of the FG connection on the PWB to connect FG terminals by screws Output capa...

Страница 31: ...pattern layout Top view A 28 Applications Manual TUNS300 500 700 Fig 10 4 a Example of the pattern and components layout Top layer Fig 10 4 b Example of the pattern and components layout Bottom layer...

Страница 32: ...tors at output side CY4 and CY5 Place the capacitors C20 CY4 and CY5 as close as possible to the power modules 11 4 EMI measure example Fig 11 1 show the circuit example for EN55022 ClassB Fig 11 1 Ex...

Страница 33: ...50 60 70 80 90 Frequency L e v e l MHz dB V EN55022b TUNS700F48 ClassB 30 1000 50 100 500 0 80 10 20 30 40 50 60 70 Frequency L e v e l MHz dB V m EN22 B TUNS700F48 30 1000 50 100 500 0 80 10 20 30 40...

Страница 34: ...ples of Convection cooling 9 3 Examples of Forced air cooling Addition A 23 A 24 A 18 A 23 1 2E 1 3E 3 29 May 2015 5 Parallel operation option P Addition 4 29 May 2015 8 Mounting method 9 Thermal Desi...

Страница 35: ...k AG auptniederlassung echwiesenstr 9 6899 Landsberg am Lech elefon 49 0 8191 91172 0 elefax 49 0 8191 21770 Mail sales fortecag de nternet www fortecag de ik AG 40 54 80 56 11 40 54 80 56 13 ortecag...

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