STK433-130N-E Datasheet, PDF (6/11 Pages) Sanyo Semicon Device – 2channel class-AB Audio Power IC 150W+150W

STK433-130N-E
Recommended external components
STK433-040N-E/060N-E/130N-E/330N-E
Parts
Location
R01, R23
Recommended
value
100/1W
Circuit purpose
Resistance for Ripple filter. (Fuse resistance is recommended.
Ripple filter is constituted with C03, C23.)
R02, R03, R04
1k
Resistance for input filters.
Above
Recommended value
Short-through current
may decrease at
high frequency.
-
Below
Recommended value
Short-through current
may increase at high
frequency.
-
R05, R06, R07
R08, R09, R10
56k
56k
Input impedance is determined.
Voltage Gain (VG) is determined with R11, R12, R13
Output neutral voltage(VN) shift.
(It is referred that R05=R08, R06=R09)
-
-
R11, R12, R13
1.8k
Voltage Gain (VG) is determined with R8, R9, R10
(As for VG, it is desirable to set up by R11, R12, R13)
It may oscillate.
(Vg < 30dB)
With especially no
problem
R14, R15, R16
4.7
Resistance for oscillation prevention.
-
-
R17, R18, R19
4.7/1W
Resistance for oscillation prevention.
-
-
R20, R21, R22
R30
C01, C02
C03, C23
C04, C05, C06
0.22/2W
(040N-E,060N-E)
0.22/5W
(130N-E,330N-E)
Note *5
100F/50V
100F/50V
2.2F/50V
This resistance is used as detection resistance of the protection
circuit application.
Decrease of
Maximum output
Power
It may cause thermal
runaway
Select Restriction resistance, for the impression voltage of ‘#17 (Stand-By) pin’ must not exceed the maximum
rating.
Capacitor for oscillation prevention.
 Locate near the HIC as much as possible.
 Power supply impedance is lowered and stable operation of
-
-
the IC is carried out. (Electrolytic capacitor is recommended.)
Decoupling capacitor
The change in the Ripple ingredient mixed in
 The Ripple ingredient mixed in an input side Is removed from a an input side from a power supply line
power supply line. (Ripple filter is constituted with R01, R23.)
Input coupling capacitor.(for DC current prevention.)
-
C07, C08, C09
470pF
Input filter capacitor
 A high frequency noise is reduced with the filter constituted by
-
R02, R03, R04
C10, C11, C12
3pF
Capacitor for oscillation prevention.
It may oscillate.
C13, C14, C15
10F/10V
Negative feedback capacitor.
The cutoff frequency of a low cycle changes.
(fL = 1/(2  C13  R11))
C16, C17, C18
0.1F
Capacitor for oscillation prevention.
The voltage gain (VG)
of low frequency is
extended. However,
the pop noise at the
time of a power
supply injection also
becomes large.
It may oscillate.
The voltage gain (VG)
of low frequency
decreases.
C19, C20, C21
100pF (040N-E)
56pF (060N-E)
N.C. (130N-E,
330N-E)
Capacitor for oscillation prevention.
It may oscillate.
L01, L02, L03
3H
Coil for oscillation prevention.
With especially
no problem
It may oscillate.
No.A2102-6/11