STK415-100-E Sanyo Semicon Device, STK415-100-E Datasheet - Page 5

• Manufacturer Part Number: STK415-100-E
• Description: 2-Channel Power Switching Audio Power IC
• Manufacturer: Sanyo Semicon Device

Recommended Values for Application Parts (for the test circuit)
R01, R02
R03, R04
R05, R06
R08, R09
R11, R12
R18, R19
R21, R22
R24, R26
C01, C02
C03, C04
C05, C06
C07, C08
C10, C11
C13, C14
C16, C17
C19, C20
C22, C23
D01, D02
D03, D04
R14,R15
L01, L02
Symbol
R30
Recommended
0.22Ω±10%,
Remarks *7
100Ω/1W
4.7Ω/1W
3A/60V
100μF/
100μF/
100μF/
2.2μF/
470pF
100pF
Value
1.5kΩ
0.1μF
22μF/
56kΩ
560Ω
56kΩ
100V
100V
4.7Ω
1kΩ
50V
10V
50V
15V
3μH
3pF
5W
Determine the current flowing into the power switching
circuit (comparator), (3mA to 10mA at V H power
switching)
Ripple filtering resistors
(Used with C05 and C06 to form a ripple filter.)
Input bias resistors
(Virtually determine the input impedance.)
Oscillation prevention resistor
Oscillation prevention resistor
Used with R18 and R19 to determine the voltage gain
VG. (VG should desirably be determined by the R14
and R15 value.)
Used with R14 and R15 to determine the voltage gain
VG.
Input filtering resistor
Output emitter resistors
(Use of cement resistor is desirable)
Use a limiting resistor according to the voltage applied to the standby pin so that it remains within the rating.
Oscillation prevention capacitors.
• Insert the capacitors as close to the IC as possible to
Oscillation prevention capacitors.
• Insert the capacitors as close to the IC as possible to
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.)
Oscillation prevention capacitor
Oscillation prevention capacitor
(Mylar capacitors are recommended.)
NF capacitor
(Changes the low cutoff frequency;
ex/f L =1/2π •C13•R14)
Input coupling capacitor (block DC current)
Input filter capacitor
(Used with R21 and R22 to form a filter that suppresses
high-frequency noises.)
Oscillation prevention capacitor
Determine the offset voltage at V L ↔V H power.
Reverse current prevention diodes
(FRD is recommended.)
Oscillation prevention inductance
decrease the power impedance for reliable IC
operation (use of electrolytic capacitors are
desirable).
decrease the power impedance for reliable IC
operation (use of electrolytic capacitors are
desirable).
Description
STK415-100-E
Power holding circuit
remains active at lower
frequencies.
Decreased pass-through
current at high frequencies.
VN offset
(Ensure R05=R18, R06=R19 when changing.)
Likely to oscillate
(VG<40dB)
Decrease in maximum
output power
Increase in ripple components that pass into the input side
from the power line.
Likely to oscillate
Increase in low-frequency
voltage gain, with higher
pop noise at power-on.
Decreased distortion at
power switching time
Larger than Recommended
Likely to oscillate
Likely to oscillate.
None
Value
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Power switching circuit
activates at higher
frequencies.
Increased pass-through
current at high frequencies.
None
Likely to cause thermal-
runaway.
Decrease in low-frequency
voltage gain
Increased distortion at
power switching time.
Likely to oscillate.
Recommended Value
Smaller than
No. A1469-5/12
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