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STK415-120-E Datasheet(PDF) 5 Page - Sanyo Semicon Device

Part # STK415-120-E
Description  2-Channel Power Switching Audio Power IC, 80W80W
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Manufacturer  SANYO [Sanyo Semicon Device]
Direct Link  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

STK415-120-E Datasheet(HTML) 5 Page - Sanyo Semicon Device

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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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