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STK415-120-E Datasheet(PDF) 5 Page - Sanyo Semicon Device |
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STK415-120-E Datasheet(HTML) 5 Page - Sanyo Semicon Device |
5 / 12 page STK415-120-E No. A1502-5/12 Recommended Values for Application Parts (for the test circuit) Symbol Recommended Value Description Larger than Recommended Value Smaller than Recommended Value R01, R02 1.5k Ω Determine the current flowing into the power switching circuit (comparator), (3mA to 10mA at VH power switching) Power holding circuit remains active at lower frequencies. Power switching circuit activates at higher frequencies. R03, R04 100 Ω/1W Ripple filtering resistors (Used with C05 and C06 to form a ripple filter.) Decreased pass-through current at high frequencies. Increased pass-through current at high frequencies. R05, R06 56k Ω Input bias resistors (Virtually determine the input impedance.) VN offset (Ensure R05=R18, R06=R19 when changing.) R08, R09 4.7 Ω/1W Oscillation prevention resistor - - R11, R12 4.7 Ω Oscillation prevention resistor - - R14,R15 560 Ω Used with R18 and R19 to determine the voltage gain VG. (VG should desirably be determined by the R14 and R15 value.) Likely to oscillate (VG<40dB) None R18, R19 56k Ω Used with R14 and R15 to determine the voltage gain VG. - - R21, R22 1k Ω Input filtering resistor - - R24, R26 0.22 Ω±10%, 5W Output emitter resistors (Use of cement resistor is desirable) Decrease in maximum output power Likely to cause thermal- runaway. R30 Remarks *7 Use a limiting resistor according to the voltage applied to the standby pin so that it remains within the rating. C01, C02 100 μF/ 100V Oscillation prevention capacitors. • Insert the capacitors as close to the IC as possible to decrease the power impedance for reliable IC operation (use of electrolytic capacitors are desirable). - - C03, C04 100 μF/ 50V Oscillation prevention capacitors. • Insert the capacitors as close to the IC as possible to decrease the power impedance for reliable IC operation (use of electrolytic capacitors are desirable). - - C05, C06 100 μF/ 100V Decoupling capacitors. Eliminate ripple components that pass into the input side from the power line. (Used with R03 and R04 to form a ripple filter.) Increase in ripple components that pass into the input side from the power line. C07, C08 3pF Oscillation prevention capacitor Likely to oscillate C10, C11 0.1 μF Oscillation prevention capacitor (Mylar capacitors are recommended.) Likely to oscillate C13, C14 22 μF/ 10V NF capacitor (Changes the low cutoff frequency; ex/fL=1/2π •C13•R14) Increase in low-frequency voltage gain, with higher pop noise at power-on. Decrease in low-frequency voltage gain C16, C17 2.2 μF/ 50V Input coupling capacitor (block DC current) - - C19, C20 470pF Input filter capacitor (Used with R21 and R22 to form a filter that suppresses high-frequency noises.) - - C22, C23 100pF Oscillation prevention capacitor Likely to oscillate. D01, D02 15V Determine the offset voltage at VL↔VH power. Decreased distortion at power switching time Increased distortion at power switching time. D03, D04 3A/60V Reverse current prevention diodes (FRD is recommended.) - - L01, L02 3 μH Oscillation prevention inductance None Likely to oscillate. |
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Similar Description - STK415-120-E |
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