SANYO STK433-090-E

Ordering number : EN*A1248
Thick-Film Hybrid IC
STK433-090-E
2-channel class AB audio power IC,
80W+80W
Overview
The STK433-090-E is a hybrid IC designed to be used in 80W × 80W (2-channel) class AB audio power amplifiers.
Applications
• Audio power amplifiers.
Features
• Pin-to-pin compatible outputs ranging from 80W to 150W.
• Can be used to replace the STK433-200, STK433-300 series (3-channel) due to its pin compatibility.
• Miniature package (67.0mm × 25.6mm × 9.0mm)
• Output load impedance: RL = 6Ω supported
• Allowable load shorted time: 0.3 second
• Allows the use of predesigned applications for standby and mute circuits.
Series Models
STK433-090-E
STK433-100-E
STK433-120-E
STK433-130-E
Output 1 (10%/1kHz)
80W×2 channels
100W×2 channels
120W×2 channels
150W×2 channels
Output 2 (0.4%/20Hz to 20kHz)
50W×2 channels
60W×2 channels
80W×2 channels
100W×2 channels
Max. rated VCC (quiescent)
±54V
±57V
±65V
±71.5V
Max. rated VCC (6Ω)
±47V
±50V
±57V
±63V
Recommended operating VCC (6Ω)
±33V
±35V
±40V
±44V
Dimensions (excluding pin height)
67.0mm×25.6mm×9.0mm
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer' s products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer' s products or
equipment.
31809HKIM No. A1248-1/11
STK433-090-E
Specifications
Absolute maximum ratings at Ta=25°C (excluding rated temperature items), Tc=25°C unless otherwise specified
Parameter
Symbol
Conditions
Ratings
Unit
±54
V
±47
V
Maximum quiescent supply voltage 0
VCC max (0)
When no signal
Maximum supply voltage 1
VCC max (1)
RL≥6Ω
Minimum operating supply voltage
VCC min
±10
V
IST OFF max
0.6
mA
Maximum operating flow-in current (pin 13)
*7
Thermal resistance
θj-c
Per power transistor
2.1
°C/W
Junction temperature
Tj max
Both the Tj max and Tc max conditions must be met.
150
°C
IC substrate operating temperature
Tc max
125
°C
Storage temperature
Tstg
-30 to +125
°C
Allowable load shorted time
*4
ts
VCC=±33V, RL=6Ω, f=50Hz, PO=50W,
0.3
1-channel active
s
Operating Characteristics at Tc=25°C, RL=6Ω, Rg=600Ω, VG=30dB, non-inductive load RL, unless otherwise
specified
Conditions *2
Parameter
Symbol
PO (1)
±33
20 to 20k
0.4
PO (2)
±33
1k
10
THD (1)
±33
20 to 20k
THD (2)
±33
1k
Frequency characteristics *1
fL, fH
±33
Input impedance
ri
±33
VNO
±39
Rg=2.2kΩ
ICCO
±39
No loading
Output neutral voltage
VN
±39
Current flowing into pin13 in
IST ON
Total harmonic distortion
Output noise voltage
*1
*1
*3
Quiescent current
standby mode
*7
Current flowing into pin13 in
operating mode
*7
IST OFF
±33
PO
(W)
unit
(Hz)
Output power
f
Ratings
VCC
(V)
THD
min
(%)
47
max
50
W
80
5.0
0.4
VG=30dB
%
0.01
1.0
1k
typ
+0 -3dB
20 to 50k
1.0
Hz
55
kΩ
1.0
mVrms
20
45
80
mA
-70
0
+70
mV
0
mA
0.6
mA
Voltage at pin13: 5V,
Current limiting
±33
resistance R1: 13kΩ
0.25
[Remarks]
*1: For 1-channel operation
*2: Unless otherwise specified, use a constant-voltage power supply to supply power when inspections are carried out.
*3: The output noise voltage values shown are peak values read with a VTVM. However, an AC stabilized (50Hz)
power supply should be used to minimize the influence of AC primary side flicker noise on the reading.
*4: Use the designated transformer power supply circuit shown in the figure below for the measurement of allowable
load shorted time and output noise voltage.
*5: The –Pre VCC (pin 1) line must be at the lowest level under any circumstances.
*6: Thermal design must be implemented based on the conditions under which the customer’s end products are
expected to operate on the market.
*7: Be sure to use the current limiting resistor to prevent the current flowing into the standby pin (pin13) never exceeds
the maximum rated value in operating mode.
The circuit is turned on by applying VBE (approximately 0.6V) or higher voltage to the standby pin (pin13).
*8: A thermoplastic adhesive resin is used for this hybrid IC.
DBA40C
10000μF
+VCC
+
Designated transformer power supply
(MG-200 equivalent)
500Ω
+
500Ω
-VCC
10000μF
No. A1248-2/11
STK433-090-E
Package Dimensions
unit:mm (typ)
67.0
60.0
0.5
2.0
(16.0)
20.8
15
4.0
1
25.6
16.0
5.0
3.6
9.0
(R1.8)
0.4
2.9
14 2.0=28.0
5.5
Internal Equivalent Circuit
3
8
Pre Driver
CH2
Pre Driver
CH1
11
12
+
+
-
-
15
14
Bias Circuit
1
2
SUB
10
9
5 4
6 7
13
No. A1248-3/11
STK433-090-E
Application Circuit Example
STK433-090-E
-VCC +VCC
2
Ch1
OUT
Ch2
OUT
4
5
6
3
0.22Ω
1
Ch1
OUT
100Ω
/1W
Ch2
OUT +PRE
7
8
SUB
GND
Ch1
IN
Ch1
NF ST-BY
Ch2
NF
Ch2
IN
9
10
11
12
14
15
0.22Ω
-PRE
13
Stand-by Control (V#13)
100pF
100pF
56kΩ
56kΩ
2.2μF
/50V
3pF
1kΩ
56kΩ
470pF
56kΩ
1.8kΩ
10μF
/10V
470pF
Ch2 IN
1.8kΩ
10μF
/10V
3pF
GND
Ch1 IN
2.2μF
/50V
1kΩ
3μH
+VCC
100μF
/100V
Ch2 OUT
100μF
/100V
0.1μF
100Ω/1W
4.7Ω
100μF
/100V
4.7Ω/1W
GND
GND
100μF
/100V
GND
4.7Ω/1W
3μH
0.1μF
Ch1 OUT
-VCC
4.7Ω
SUB.GND
Sample PCB Trace Pattern
C23
No. A1248-4/11
STK433-090-E
STK433-100/STK433-300Sr PCB PARTS LIST
PCB Name: STK403-000Sr/100Sr/200Sr PCBA
Location No.
* 2ch AMP doesn’t mount parts of ( ).
PARTS
RATING
-
-
Hybrid IC#1 Pin Position
Component
c
STK433-100Sr (*2)
STK433-300Sr
R01
ERG1SJ101
100Ω,1W
enabled
R02, R03 (R4)
RN16S102FK
1kΩ, 1/6W
enabled
R05, R06, R08, R09 (R7, R10)
RN16S563FK
56kΩ, 1/6W
enabled
R11, R12 (R13)
RN16S182FK
1.8kΩ, 1/6W
enabled
R14, R15 (R16)
RN14S4R7FK
4.7Ω, 1/4W
enabled
R17, R18 (R19)
ERX1SJ4R7
4.7Ω, 1W
enabled
R20, R21 (R22)
ERX2SJR22
0.22Ω, 2W
enabled
100MV100HC
100μF, 100V
enabled
C04, C05 (C06)
50MV2R2HC
2.2μF, 50V
C07, C08 (C09)
DD104-63B471K50
470pF, 50V
enabled
C10, C11 (C12)
DD104-63CJ030C50
3pF, 50V
enabled
C13, C14 (C15)
10MV10HC
10μF, 10V
enabled (*1)
C16, C17 (C18)
ECQ-V1H104JZ
0.1μF, 50V
C19, C20 (C21)
DD104-63B***K50
***pF, 50V
R34, R35 (R36)
RN16S302FK
3kΩ, 1/6W
C01, C02, C03, C23
(*3)
L01, L02 (L3)
Stand-By Control Circuit
-
enabled (*1)
enabled
100pF
68pF
Short
3μH
enabled
Tr1
2SC2274 (Reference)
VCE≥50V, IC≥10mA
enabled
D1
GMB01 (Reference)
Di
enabled
R30
RN16S***FK
***kΩ, 1/6W
R31
RN16S333FK
33kΩ, 1/6W
enabled
R32
RN16S102FK
1kΩ, 1/6W
enabled
enabled
R33
RN16S202FK
2kΩ, 1/6W
C32
10MV33HC
33μF, 10V
J1, J2, J3, J4, J5, J6, J8, J9
-
13kΩ
2.7kΩ
enabled
-
enabled
J7, JS2, JS3, JS4, JS5, JS7 JS8, JS9
-
-
-
JS6, JS10
-
-
enabled
JS1
ERG1SJ101
100Ω, 1W
enabled
(*1) Capacitor mark “A” side is “-” (negative).
(*2) STK433-100Sr (2ch AMP) doesn’t mount parts of ( ).
(*3) Add parts C23 to the other side of PCB.
No. A1248-5/11
STK433-090-E
Pin Assignments
[STK433-000/-100/-200Sr & STK415/416-100Sr Pin Layout]
1
2
3
4
5
2ch class-AB
6
7
8
9
10
11
12
13
14
15
I
N
S
N
I
N
F
T
F
N
2ch classAB/2.00mm
STK433-030-E 30W/JEITA
-
-
+
O
O
O
O
+
STK433-040-E 40W/JEITA
P
V
V
U
U
U
U
P
S
G
STK433-060-E 50W/JEITA
R
C
C
T
T
T
T
R
U
N
/
/
A
/
/
STK433-070-E 60W/JEITA
E
C
C
/
/
/
/
E
B
D
C
C
N
C
C
C
C
C
C
•
H
H
D
H
H
STK433-090-E 80W/JEITA
H
H
H
H
G
1
1
|
2
2
STK433-100-E 100W/JEITA
1
1
2
2
N
B
STK433-120-E 120W/JEITA
+
-
+
-
D
Y
7
15
STK433-130-E 150W/JEITA
1
2
3
4
5
6
STK433-230A-E 30W/JEITA
-
-
+
O
O
O
O
+
STK433-240A-E 40W/JEITA
P
V
V
U
U
U
U
P
S
G
STK433-260A-E 50W/JEITA
R
C
C
T
T
T
T
R
U
N
STK433-270-E 60W/JEITA
E
C
C
/
/
/
/
E
B
D
STK433-290-E 80W/JEITA
C
C
C
C
STK433-300-E 100W/JEITA
H
H
H
STK433-320-E 120W/JEITA
1
1
2
STK433-330-E 15W/JEITA
+
-
3ch class-AB
8
9
10
11
12
13
14
16
17
18
19
I
N
S
N
N
F
T
F
I
I
N
O
O
N
N
F
U
/
/
A
/
U
/
/
/
T
C
C
N
T
C
C
C
C
/
•
H
H
/
D
H
H
H
H
C
C
H
G
1
1
2
N
B
|
2
2
3
3
H
H
3
+
-
D
Y
3
+
11
-
3ch classAB/2.00mm
1
2
3
4
5
6
7
8
9
10
STK415-090-E 80W/JEITA
+
-
+
-
-
-
+
O
O
O
O
+
STK415-100-E 90W/JEITA
V
V
O
O
P
V
V
U
U
U
U
P
S
G
STK415-120-E 120W/JEITA
L
L
H
H
T
T
T
T
R
U
N
/
/
A
/
/
/
/
/
/
E
B
D
C
C
N
C
C
2ch class-H
12
13
14
15
16
17
18
19
I
N
S
N
I
N
F
T
F
N
2ch classH/2.00mm
F
F
R
STK415-130-E 150W/JEITA
F
F
E
STK415-140-E 180W/JEITA
S
S
C
C
C
C
•
H
H
D
H
H
E
E
H
H
H
H
G
1
1
|
2
2
T
T
1
1
2
2
N
3
4
19
1
2
5
6
7
+
-
+
-
8
9
10
11
3ch class-H
B
D
12
13
Y
14
15
16
17
18
20
21
22
23
3ch classH/2.00mm
STK416-090-E 80W/JEITA
+
-
+
-
-
-
+
O
O
O
O
+
I
N
S
N
I
I
N
O
O
STK416-100-E 90W/JEITA
V
V
O
O
P
V
V
U
U
U
U
P
S
G
N
F
T
F
N
N
F
U
U
STK416-120-E 120W/JEITA
L
L
F
F
R
H
H
T
T
T
T
R
U
N
/
/
A
/
/
/
/
T
T
F
F
E
/
/
/
/
E
B
D
C
C
N
C
C
C
C
/
/
S
S
C
C
C
C
•
H
H
D
H
H
H
H
C
C
E
E
H
H
H
H
G
1
1
|
2
2
3
3
H
H
T
T
1
1
2
2
N
B
3
3
+
-
+
-
D
Y
+
-
STK416-130-E 150W/JEITA
No. A1248-6/11
STK433-090-E
100
7
5
3
2
THD - PO
Total power dissipation within the board, Pd - W
Total harmonic distortion, THD - %
Evaluation Board Characteristics
VCC=±33V
VG=30dB
RL=6Ω
2ch Drive
Rg=600Ω
Tc=25°C
10
7
5
3
2
1.0
7
5
3
2
0.1
7
5
3
2
0.01
7
5
3
2
0.001
0.1
f=20kHz
f=1kH
2
3
5 7 1.0
2
3
z
5 7 10
2
Output power, PO/ch - W
80
60
40
20
0
0.1
2 3
5 7 1.0
2 3
2 3
5 7 100
2 3
5 71000
ITF02641
PO - f
120
f=1kHz
RL=6Ω
2ch Drive
VG=30dB
Rg=600Ω
5 7 10
Output power, PO/ch - W
PO - VCC
100
TH
D=
1
D
=0 0%
.4
%
80
60
40
20
0
10
100
Pd - PO
VCC=±33V
VG=30dB
f=1kHz
Rg=600Ω
Tc=25°C
RL=6Ω
2ch Drive
(same output rating)
ITF02640
TH
Output power, PO/ch - W
100
5 7 100
Output power, PO/ch - W
120
3
120
THD=10%
80
THD=0.4%
60
VCC=±33V
VG=30dB
Rg=600Ω
Tc=25°C
RL=6Ω
2ch Drive
40
20
20
30
Supply voltage, VCC - ±V
40
50
ITF02642
0
10
2 3
5 7 100
2 3
5 7 1k
2 3
Frequency, f - Hz
5 7 10k
2 3
5 7100k
ITF02643
[Thermal Design Example for STK433-090-E (RL = 6Ω)]
The thermal resistance, θc-a, of the heat sink for total power dissipation, Pd, within the hybrid IC is determined as
follows.
Condition 1: The hybrid IC substrate temperature, Tc, must not exceed 125°C.
Pd × θc-a + Ta < 125°C ................................................................................................. (1)
Ta: Guaranteed ambient temperature for the end product
Condition 2: The junction temperature, Tj, of each power transistor must not exceed 150°C.
Pd × θc-a + Pd/N × θj-c + Ta < 150°C .......................................................................... (2)
N: Number of power transistors
θj-c: Thermal resistance per power transistor
However, the power dissipation, Pd, for the power transistors shall be allocated equally among the number of power
transistors.
The following inequalities result from solving equations (1) and (2) for θc-a.
θc-a < (125 − Ta)/Pd ...................................................................................................... (1)'
θc-a < (150 − Ta)/Pd − θj-c/N ........................................................................................ (2)'
Values that satisfy these two inequalities at the same time represent the required heat sink thermal resistance.
When the following specifications have been stipulated, the required heat sink thermal resistance can be determined
from formulas (1)' and (2)'.
• Supply voltage
VCC
• Load resistance
RL
• Guaranteed ambient temperature
Ta
No. A1248-7/11
STK433-090-E
[Example]
When the IC supply voltage, VCC, is ±33V and RL is 6Ω, the total power dissipation, Pd, within the hybrid IC, will
be a maximum of 75W at 1kHz for a continuous sine wave signal according to the Pd-PO characteristics.
For the music signals normally handled by audio amplifiers, a value of 1/8PO max is generally used for Pd as an
estimate of the power dissipation based on the type of continuous signal. (Note that the factor used may differ
depending on the safety standard used.)
This is:
Pd ≈ 59.0W
(when 1/8PO max. = 10W, PO max. = 80W).
The number of power transistors in audio amplifier block of these hybrid ICs, N, is 4, and the thermal resistance per
transistor, θj-c, is 2.1°C/W. Therefore, the required heat sink thermal resistance for a guaranteed ambient temperature,
Ta, of 50°C will be as follows.
From formula (1)'
θc-a < (125 − 50)/59.0
< 1.27
From formula (2)'
θc-a < (150 − 50)/59.0 − 2.1/4
< 1.17
Therefore, the value of 1.17°C/W, which satisfies both of these formulae, is the required thermal resistance of the heat
sink.
Note that this thermal design example assumes the use of a constant-voltage power supply, and is therefore not a
verified design for any particular user’s end product.
STK433-100 Series Standby Control, Mute Control, Load-short Protection & DC
offset Protection application
STK433-100 series
4
5
6
3
56kΩ
56kΩ
6.8kΩ
56kΩ
6.8kΩ
Ch2
OUT +PRE
7
8
(*1) The voltage applied to the Stand-by pin (#13) must not exceed the
maximum rated value (VST max).
SUB
GND
Ch1
IN
9
10
11
Ch1
NF ST-BY
Ch2
NF
Ch2
IN
12
14
15
13
1kΩ
0.22Ω/2W
2
Ch2
OUT
0.22Ω/2W
1
Ch1
OUT
(*1)
13kΩ
Stand-by Control (ex)
H: Operation Mode (+5V)
L: Stand-by Mode (0V)
33kΩ
33μF
/10V
2kΩ
56kΩ
-PRE -VCC +VCC
Ch1
OUT
Ch2 IN
Load short
protection
circuit
10kΩ
22kΩ
56kΩ
10kΩ
Latch up
circuit
0.1μF
+VCC
GND
Ch1 IN
10kΩ
1kΩ
V1
R1
(*1)
2.2kΩ
Mute Control
H: Single Mute
L: Normal
10kΩ 100kΩ
GND
Ch2 OUT
82kΩ
GND
-VCC
GND
82kΩ
22μF
22μF
100
kΩ
Ch1 OUT
Standby
Control
+5V
+5V
Mute
Control
MUTE
DC offset protection
ST-BY
PLAY
MUTE
ST-BY
No. A1248-8/11
STK433-090-E
STK433-100 Series Application Explanation
Stand-by Circuit
in Pre Driver IC
STK433-100 series
SW transistor
ΔVBE
3
4
56kΩ 6.8kΩ
6
5
6.8kΩ
56kΩ
Tr1
8
9
10
Ch1
NF ST-BY
11
12
13
Ch2
NF
Ch2
IN
14
15
1) Stand-by control circuit part
H: Operation mode (+5V)
L: Stand-by mode (0V)
1kΩ
Point.B
Point.C
33kΩ
(*1) R1 Tr5
ex) 13kΩ
IST
(*2)
ex) +5V
2kΩ
33μF
Tr2
Point.B
56kΩ
7
Ch1
IN
0.22Ω/2W
2
56kΩ
-VCC
1
0.22Ω/2W
-PRE
Ch1
Ch2
Ch1
Ch2
+VCC OUT(+) OUT(-) OUT(+) OUT(-) +PRE SUB GND
Point.C
22kΩ
56kΩ
(2) Load short
detection part
I3
Tr4
I2
1kΩ
(*4) R2
0.1μF 10kΩ
Tr3
(3) Latch-up
circuit part
100kΩ
-VCC
Tr5
82kΩ
OUT Ch1
Tr6
OUT Ch2
22μF
82kΩ
100
kΩ
22μF
(4) DC offset
protection
The protection circuit application for the STK433-100sr consists of the following blocks (blocks (1) to (4)).
(1) Standby control circuit block
(2) Load short-circuit detection block
(3) Latch-up circuit block
(4) DC voltage protection block
1) Standby control circuit block
(Reference example) STK433-100 series test circuit (when +5V is applied to Stand-by control.)
1kΩ (*3)
1) Stand-by control
H: Operation mode (+5V)
L: Stand-by mode (0V)
33kΩ
(*1) R1
13kΩ
VST
ΔVBE
33μF
(*2)
2kΩ (*3)
Sink current IST
1
2
3
4
5
6
7
8
-PRE
-VCC
+VCC
Ch1
OUT
Ch1
OUT
Ch2
OUT
Ch2
OUT
+PRE
9
10
SUB GND
11
12
Ch1
IN
Ch1
NF
ΔVBE
STK433-100series
13
ST-BY
14
15
Ch2
NF
Ch2
IN
ex) Stand-by control voltage=+5V
IST=(VST-VBE*2)/R1
=(5-0.6*2)/13kΩ
≈0.3(mA)
Stand-by Circuit
in Pre Driver IC
Concerning pin 13 reference voltage VST
<1> Operation mode
The switching transistor in the bias circuit turns on and places the amplifier into the operating mode when the
current flowing into pin 13 (IST) becomes 0.25mA or greater.
<2> Standby mode
When the current flowing into pin 13 (IST) is stopped (=0mA), the switching transistor in the bias circuit turns
off, placing the amplifier into the standby mode.
(*1) The current limiting resistor (R1) must be used to ensure that the current flowing into the stand-by pin
(pin 13) does not exceed its maximum rated value IST max.
(*2) The pop noise level when the power is turned on can be reduced by setting the time constant with a
capacitor in operating mode.
(*3) Determines the time constant at which the capacitor (*3) is discharged in standby mode.
No. A1248-9/11
STK433-090-E
2) Load short-circuit detection block
Since the voltage between point B and point C is less than 0.6V in normal operation mode (VBE < 0.6V) and TR1 (or
TR2) is not activated, the load short-circuit detection block does not operate.
When a load short-circuit occurs, however, the voltage between point B and point C becomes larger than 0.6V,
causing TR1 (or TR2) to turn on (VBE > 0.6V), and current I2 to flows.
3) Latch-up circuit block
TR3 is activated when I2 is supplied to the latch-up circuit.
When TR3 turns on and current I3 starts flowing, VST goes down to 0V (standby mode), protecting the power
amplifier.
Since TR3 and TR4 configure a thyristor, once TR3 is activated, the IC is held in the standby mode.
To release the standby mode and reactivate the power amplifier, it is necessary to set the standby control voltage (*2)
temporarily low (0V). Subsequently, when the standby control is returned to high, the power amplifier will become
active again.
(*4) The I3 value varies depending on the supply voltage. Determine the value of R2 using the formula below, so that
I1 is equal to or less than I3.
I1 ≤ I3 = VCC/R2
4) DC offset protection block
The DC offset protection circuit is activated when ±0.5V (typ) voltage is applied to either "OUT CH1" or "OUT
CH2," and the hybrid IC is shut down (standby mode).
To release the IC from the standby mode and reactivate the power amplifier, it is necessary to set the standby control
voltage temporarily low (0V).
Subsequently, when the standby control is returned to high (+5V, for example), the power amplifier will become
active again.
The protection level must be set using the 82kΩ resistor. Furthermore, the time constant must be determined using
22μ//22μ capacitors to prevent the amplifier from malfunctioning due to the audio signal.
STK433-100 Series BTL Application
STK433-100-E series
Ch1
-PRE -VCC +VCC OUT
1
2
3
Ch1
OUT
4
6
5
0.22Ω
100Ω
/1W
Ch2 Ch2
OUT OUT +PRE SUB
7
8
9
GND
Ch1
IN
Ch1
Ch2 Ch2
NF ST-BY NF
IN
10
11
12
13
14
(*1) The voltage applied to the Stand-by pin (#13) must not
exceed the maximum rated value (VST max).
15
0.22Ω
(*1) R1
100pF
56kΩ
Stand-by Control
56kΩ
3pF
100μF
/100V
100Ω/1W
100μF
/100V
1.8kΩ
1.8kΩ
10μF
/10V
10μF
/10V
470pF
100μF
/100V
56kΩ
3pF
GND
1kΩ
Ch1 IN
-VCC
2.2μF
/50V
+VCC
33μF 33μF 56kΩ
3μH
3μH
0.1μF
4.7Ω/1W
4.7Ω
4.7Ω
0.1μF
4.7Ω
/1W
RL=8Ω
OUT
No. A1248-10/11
STK433-090-E
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PS No. A1248-11/11