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Ordering number : EN*A1469A
Thick-Film Hybrid IC
STK415-100-E
Overview
2-Channel Power Switching Audio Power IC, 60W+60W
The STK415-100-E is a class H audio power amplifier hybrid IC that features a built-in power supply switching circuit. This IC provides high efficiency audio power amplification by controlling (switching) the supply voltage supplied to the power devices according to the detected level of the input audio signal.
Applications
* Audio power amplifiers.
Features
* Pin-to-pin compatible outputs ranging from 80W to 180W. * Can be used to replace the STK416-100 series (3-channel models) and the class-AB series (2, 3-channel models) due to its pin compatibility. * Pure complementary construction by new Darlington power transistors * Output load impedance: RL = 8 to 4 supported * Using insulated metal substrate that features superlative heat dissipation characteristics that are among the highest in the industry.
Series Models
STK415-090-E Output 1 (10%/1kHz) Output 2 (0.8%/20Hz to 20kHz) Max. rated VH (quiescent) Max. rated VL (quiescent) Recommended operating VH (8) Recommended operating VL (8) Dimensions (excluding pin height) 80Wx2 channels 50Wx2 channels 60V 41V 37V 27V STK415-100-E 90Wx2 channels 60Wx2 channels 65V 42V 39V 29V STK415-120-E 120Wx2 channels 80Wx2 channels 73V 45V 46V 32V 64.0mmx31.1mmx9.0mm STK415-130-E 150Wx2 channels 100Wx2 channels 80V 46V 51V 34V STK415-140-E 180Wx2 channels 120Wx2 channels 80V 51V 52V 32V
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.
70809HKIM/51309HKIM No. A1469-1/12
STK415-100-E
Specifications
Absolute maximum ratings at Ta=25C (excluding rated temperature items), Tc=25C unless otherwise specified
Parameter VH maximum quiescent supply voltage 1 VH maximum supply voltage 2 VH maximum supply voltage 3 VL maximum quiescent supply voltage 1 VL maximum supply voltage 2 VL maximum supply voltage 3 Maximum voltage between VH and VL *4 Standby pin maximum voltage Thermal resistance Junction temperature IC substrate operating temperature Storage temperature Allowable load shorted time *3 Symbol VH max (1) VH max (2) VH max (3) VL max (1) VL max (2) VL max (3) VH-VL max Vst max j-c Tj max Tc max Tstg ts VH=39V, VL=29V, RL=8, f=50Hz, PO=60W, 1-channel active Per power transistor Both the Tj max and Tc max conditions must be met. When no signal RL6 RL4 When no signal RL6 RL4 No loading Conditions Ratings 65 57 46 42 37 29 60 -0.3 to +5.5 1.8 150 125 -30 to +125 0.3 Unit V V V V V V V V C/W C C C s
Electrical Characteristics at Tc=25C, RL=8 (non-inductive load), Rg=600, VG=40dB, VZ=15V
Conditions *1 Parameter Output power Symbol PO (1) PO (2) Total harmonic distortion THD VH VL VH VL VH VL Frequency characteristics fL, fH ri VH VL VH VL VH VL VH VL Output neutral voltage VN VST ON *7 VST OFF *7 VH VL VH VL VH VL V (V) 39 29 32 24 39 29 39 29 39 29 47 31 47 31 47 31 39 29 39 29 Standby 1k f (Hz) 20 to 20k PO (W) THD (%) 0.8 min 60 W 1k 0.8 RL=4 60 Ratings unit typ max
20 to 20k
60
0.4
%
1.0
+0 -3dB
20 to 50k
Hz
Input impedance
1.0
55
k
Output noise voltage
*2
VNO ICCO
Rg=2.2k
1.0 30 100 -70 0 +70
mVrms
Quiescent current
RL=
mA
mV
Pin 17 voltage when standby ON Pin 17 voltage when standby OFF
0
0.6
V
Operating
2.5
3.0
V
[Remarks] *1: Unless otherwise specified, use a constant-voltage power supply to supply power when inspections are carried out. *2: 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. *3: Use the designated transformer power supply circuit shown in the figure below for the measurements of allowable load shorted time and output noise voltage. *4: Design circuits so that (|VH|-|VL|) is always less than 40V when switching the power supply with the load connected. *5: Set up the VL power supply with an offset voltage at power supply switching (VL-VO) of about 8V as an initial target. *6: Please connect -Pre VCC pin (#5 pin) with the stable minimum voltage and connect so that current does not flow in by reverse bias. *7: Use the standby pin (pin 17) so that the applied voltage never exceeds the maximum rating. The power amplifier is turned on by applying +2.5V to +5.5V to the standby pin (pin 17). *8: Thermal design must be implemented based on the conditions under which the customer's end products are expected to operate on the market. *9: A thermoplastic adhesive resin is used for this hybrid IC.
No. A1469-2/12
STK415-100-E
DBA40C 10000F + 500 + 500 -VH 10000F 10000F + 500 -VL +VH DBA40C 10000F + 500 +VL
Designated transformer power supply (MG-250 equivalent)
Designated transformer power supply (MG-200 equivalent)
Package Dimensions
unit:mm (typ)
64.0 55.6 (R1.8) 9.0
5.0
21.0
31.1 25.8
3.6
1 2.0
19 0.5
4.0
0.4 2.9 5.5
(9.8)
18 2.0=36.0
Internal Equivalent Circuit
7 12
Comparator Pre Driver CH1 Pre Driver CH2
3
15 16
1 2 4
Stand-by
5
Comparator
6
SUB
14 13 9 8 10 11 17 18 19
No. A1469-3/12
STK415-100-E
Application Circuit Example STK415-100 series
+OFF -OFF OUT OUT OUT OUT IN NF ST NF +VL -VL SET SET -Pre -VH +VH Ch1+ Ch1- Ch2+ Ch2- +Pre SUB GND Ch1 Ch1 BY Ch2 IN Ch2
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16
C22
17 18
19
R30 Stand-by
C23
R24
R26 R18
R19
D03 D04
C08 R14 C07 C13 R15 C14 R06 C17 C20 GND R05 +VH C01 +VL C03 GND C04 -VL C02 -VH R11 D02 R02 R12 C06 R01 D01 C05 L02 Ch2-OUT R03 C16 C19 Ch1-IN R21 R22 Ch2-IN
C11 R09
GND R04 L01 R08 C10 Ch1-OUT
No. A1469-4/12
STK415-100-E
Recommended Values for Application Parts (for the test circuit)
Symbol R01, R02 Recommended Value 1.5k Description Determine the current flowing into the power switching circuit (comparator), (3mA to 10mA at VH power switching) R03, R04 R05, R06 R08, R09 R11, R12 R14,R15 100/1W 56k 4.7/1W 4.7 560 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.) R18, R19 R21, R22 R24, R26 R30 C01, C02 56k 1k 0.2210%, 5W Remarks *7 100F/ 100V Used with R14 and R15 to determine the voltage gain VG. Input filtering resistor Output emitter resistors (Use of cement resistor is desirable) Decrease in maximum output power Likely to cause thermalrunaway. Larger than Recommended Value 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) None Smaller than Recommended Value Power switching circuit activates at higher frequencies. Increased pass-through current at high frequencies.
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 decrease the power impedance for reliable IC operation (use of electrolytic capacitors are desirable). -
C03, C04
100F/ 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
100F/ 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 C10, C11 C13, C14
3pF 0.1F 22F/ 10V
Oscillation prevention capacitor Oscillation prevention capacitor (Mylar capacitors are recommended.) NF capacitor (Changes the low cutoff frequency; ex/fL=1/2 *C13*R14)
Likely to oscillate Likely to oscillate Increase in low-frequency voltage gain, with higher pop noise at power-on. Decrease in low-frequency voltage gain
C16, C17 C19, C20
2.2F/ 50V 470pF
Input coupling capacitor (block DC current) Input filter capacitor (Used with R21 and R22 to form a filter that suppresses high-frequency noises.)
Likely to oscillate. Decreased distortion at power switching time
-
C22, C23 D01, D02 D03, D04 L01, L02
100pF 15V 3A/60V 3H
Oscillation prevention capacitor Determine the offset voltage at VLVH power. Reverse current prevention diodes (FRD is recommended.) Oscillation prevention inductance
Increased distortion at power switching time. Likely to oscillate.
None
No. A1469-5/12
STK415-100-E
Sample PCB Trace Pattern
STK415-100-E-Sr/STK416-100-E-Sr PCB PARTS LIST
Parts List
PCB No. R01, R02 R03, R04 R05, R06, (R07), R18, R19, (R20) R08, R09, (R10) R11, R12, (R13) R14, R15, (R16) R21, R22, (R23) R25, R27, (R29) R24, R26, (R28) R35, R36, R37 C01, C02, C05, C06 C03, C04 C07, C08, (C09) C10, C11, (C12) C13, C14, (C15) C16, C17, (C18) C19, C20, (C21) C22, C23, (C24) D01, D02 D03, D04 L01, L02, (L03) Stand-By R30 R32 R33 R34 C25 D05 TR1 J01 J02, J03, J06 J04, J05 PARTS 100, 1W 56k, 1/6W 4.7, 1W 4.7, 1/4W 1k, 1/6W
STK415, 416-100Sr PCB Parts List
STK415 (416) RATING ERX1SJ*** ERG1SJ101 RN16S563FK ERX1SJ4R7 RN14S4R7FK RN16S***FK RN16S102FK BPR56CFR22J BPR56CFR22J 100MV100HC 50MV100HC DD104-63B3ROK50 ECQ-V1H104JZ 10MV220HC 50MV2R2HC DD104-63B471K50 DD104-63B101K50 -090-E, -100-E, -120-E, 130-E 1.5k, 1W enabled enabled enabled enabled 560, 1/6W enabled Short enabled Short enabled enabled enabled enabled enabled enabled enabled enabled GZA15X (SANYO) enabled enabled RN16S332FK RN16S102FK RN16S333FK RN16S202FK 10MV47HC GMB01 (Ref.) 2SC2274 (Ref.) 20mm 10mm 7mm enabled enabled enabled enabled enabled enabled enabled enabled enabled enabled 1.5k, 1W enabled enabled enabled enabled 560, 1/6W enabled Short enabled Short enabled enabled enabled enabled enabled enabled enabled enabled GZA18X (SANYO) enabled enabled enabled enabled enabled enabled enabled enabled enabled enabled enabled enabled STK415-140-E
0.2210%, 5W 0.2210%, 5W 100F, 100V 100F, 50V 3pF 0.1F, 100V 22F, 10V 2.2F, 50V 470pF 100pF IF (AV)=3A/60V 3H 3.3k, 1/6W 1k, 1/6W 33k, 1/6W 2k, 1/6W 47F, 10V Jumper Jumper Jumper
(*1) STK416-100Sr (3ch AMP) doesn't mount parts of ( ).
No. A1469-6/12
STK415-100-E
Pin Assignments
[STK433-000/-100/-200 Sr & STK415/416-100 Sr Pin Layout]
1 2ch class-AB STK433-030-E 30W/JEITA STK433-040-E 40W/JEITA STK433-060-E 50W/JEITA STK433-070-E 60W/JEITA STK433-090-E 80W/JEITA STK433-100-E 100W/JEITA STK433-120-E 120W/JEITA STK433-130-E 150W/JEITA 1 3ch class-AB STK433-230A-E 30W/JEITA STK433-240A-E 40W/JEITA STK433-260A-E 50W/JEITA STK433-270-E 60W/JEITA STK433-290-E 80W/JEITA STK433-300-E 100W/JEITA STK433-320-E 120W/JEITA STK433-330-E 150W/JEITA 1 2ch class-H STK415-090-E 80W/JEITA STK415-100-E 90W/JEITA STK415-120-E 120W/JEITA STK415-130-E 150W/JEITA STK415-140-E 180W/JEITA + V L V L + O F F S E T O F F S E T P R E V H + V H O U T / C H 1 + 1 3ch class-H STK416-090-E 80W/JEITA STK416-100-E 90W/JEITA STK416-120-E 120W/JEITA STK416-130-E 150W/JEITA + V L V L + O F F S E T O F F S E T P R E V H + V H O U T / C H 1 + O U T / C H 1 2 3 4 5 6 7 8 O U T / C H 1 9 2 3 4 5 6 7 P R E V C C + V C C O U T / C H 1 + 8 O U T / C H 1 9 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 P R E V C C + V C C O U T / C H 1 + O U T / C H 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 2ch classAB/2.00mm O U T / C H 2 + O U T / C H 2 + P R E S U B * G N D G N D I N / C H 1 N F / C H 1 S T A N D | B Y N F / C H 2 I N / C H 2
3ch classAB/2.00mm O U T / C H 2 + 10 O U T / C H 2 11 12 + P R E S U B * G N D 13 14 15 16 G N D I N / C H 1 N F / C H 1 S T A N D | B Y 17 18 19 N F / C H 2 I N / C H 2 I N / C H 3 N F / C H 3 O U T / C H 3 + O U T / C H 3 -
2ch classH/2.00mm O U T / C H 2 + 10 O U T / C H 2 11 12 + P R E S U B * G N D 13 14 15 16 G N D I N / C H 1 N F / C H 1 S T A N D | B Y 17 18 19 20 21 22 23 N F / C H 2 I N / C H 2
3ch classH/2.00mm O U T / C H 2 + O U T / C H 2 + P R E S U B * G N D G N D I N / C H 1 N F / C H 1 S T A N D | B Y N F / C H 2 I N / C H 2 I N / C H 3 N F / C H 3 O U T / C H 3 + O U T / C H 3 -
No. A1469-7/12
STK415-100-E
Evaluation Board Characteristics
100 7 5 3 2 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 1.0
Total harmonic distortion, THD - %
f=20kH
z
VH=39V VL=29V VG=40dB Rg=600 Tc=25C RL=8 2ch Drive ch2 measure
Total power dissipation within the board, Pd - W
THD - PO
80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 0.1
Pd - PO
VH=39V VL=29V VG=40dB f=1kHz Rg=600 Tc=25C RL=8 2ch Drive ch2 measure
1kHz
2
3
5 7 10
2
3
5 7 100
2
3
5 7 1000
ITF02659
23
5 7 1.0
23
5 7 10
23
5 7 100
23
57 1000
ITF02660
Output power, PO/ch - W
240 220 200
Output power, PO/ch - W
240 220 200
PO - V L
PO - V H
VL=29V VG=40dB Rg=600 f=1kHz RL=8 2ch Drive ch2 measure
Output power, PO/ch - W
Output power, PO/ch - W
180 160 140 120 100 80 60 40 20 0 10 20 30
VH=39V VG=40dB Rg=600 f=1kHz RL=8 2ch Drive ch2 measure
180 160 140 120 100 80 60 40 20
0% =1 % D 0.8 TH D= 4% TH =0. D TH
40
ITF02661
0 20
30
40
50
60
70
ITF02662
Supply voltage, VL - V
240 220 200
PO - f
Supply voltage, VH - V
Output power, PO/ch - W
180 160 140 120 100 80 60 40 20 0 10 23 5 7 100 23 5 7 1k 23
VH=39V VL=29V VG=40dB Rg=600 Tc=25C RL=8 2ch Drive ch2 measure THD=10% THD=0.8% THD=0.4%
5 7 10k
23
5 7100k
ITF02663
Frequency, f - Hz
No. A1469-8/12
STK415-100-E
[Thermal Design Example for STK415-100-E (RL = 8)] The thermal resistance, c-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 125C. Pd x c-a + Ta < 125C ................................................................................................. (1) Ta: Guaranteed ambient temperature for the end product Condition 2: The junction temperature, Tj, of each power transistor must not exceed 150C. Pd x c-a + Pd/N x j-c + Ta < 150C .......................................................................... (2) N: Number of power transistors j-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 c-a. c-a < (125 - Ta)/Pd ...................................................................................................... (1)' c-a < (150 - Ta)/Pd - j-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 VH, VL * Load resistance RL * Guaranteed ambient temperature Ta [Example] When the IC supply voltage, VH=39V, VL=29V and RL is 8, the total power dissipation, Pd, within the hybrid IC, will be a maximum of 60W 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 37.0W (when 1/8PO max. = 7.5W, PO max. = 60W).
The number of power transistors in audio amplifier block of these hybrid ICs, N, is 4, and the thermal resistance per transistor, j-c, is 2.1C/W. Therefore, the required heat sink thermal resistance for a guaranteed ambient temperature, Ta, of 50C will be as follows. From formula (1)' c-a < (125 - 50)/37.0 < 2.02 From formula (2)' c-a < (150 - 50)/37.0 -1.8/4 < 2.25 Therefore, the value of 2.02C/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.
No. A1469-9/12
STK415-100-E
STK415-100 Series Stand-by control, Mute control, Load-short protection & DC offset protection application
*1 Set the limiting resistor value R1 so that the voltage applied to the standby
STK415-100 series
+VL -VL +OFF -OFF SET SET -Pre -VH OUT OUT OUT OUT +VH Ch1+ Ch1- Ch2+ Ch2- +Pre GND SUB IN NF STCh1 Ch1 BY
4.7k
NF Ch2 IN Ch2
pin (pin 17) never exceeds the maximum rated value VST max. #17pin reference voltage VST
1
2
3
4
5
6
7
8
56k
9 10 11 12 13 14 15 16 17 18 19
1k 6.8k (*1) R30 ex) 3.3k 56k 0.22 33k 47F /10V 2k GND Stand-by Control H: Operation Mode (+5V) L: Stand-by Mode (0V)
*3
*3
56k
6.8k
*2
Ch2 IN 10k GND
56k 0.22
10k 22k 56k Latch up circuit 1k V1 Ch2 OUT 10k 100k (*4) R2
Ch1 IN
*2 +VH +VL GND Load Short Protection circuit
10k
0.1F
2.2k
Mute Control H: Single Mute L: Normal
-VL
GND
82k 100 k Stand-by Control Mute Control +5V
-VH
GND
22F 82k 22F
+5V
Ch1 OUT
DC offset protection MUTE ST-BY PLAY MUTE ST-BY
*2 METAL PLATE CEMENT RESISTOR 0.2210%(5W) *3 DIODE 3A/60V
STK415-100 Series Application explanation
STK415-100 series
-PRE
Stand-by Circuit in Pre Driver IC
SW transistor VBE
4.7k (*3) 1) Stand-by control circuit part H: Operation mode (+5V) L: Stand-by mode (0V) 1k
Ch1 Ch2 Ch1 Ch2 -VH +VH OUT(+) OUT(-) OUT(+) OUT(-) +PRE SUB GND
Ch1 IN
Ch1 NF STBY
Ch2 NF
Ch2 IN
1
4
5
6
7
8
9
10
6.8k
11
12
13
14
15
16
17
18
19
0.22/2W
0.22/2W
56k 6.8k
56k
I1
(*1) R30 Tr5 ex) 3.3k 47F
33k Stand-By Control Voltage VST 2k
Tr1 Point.B 56k Point.C Point.B
Tr2 56k Point.C 22k 56k I3 I2 Tr4 1k 0.1F 10k Tr3 100k (3) Latch-up circuit part (*4) R2
(2) Load short detection part
Operate mode (VSTOFF) 2.5V Stand-By mode (VSTON)< 0.6V (0V typ)
-VCC
82k OUT Ch1 OUT Ch2 82k 22F 22F
Tr5 Tr6 100 k (4) DC offset protection
No. A1469-10/12
STK415-100-E
The protection circuit application for the STK415-100sr 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 Concerning pin 17 reference voltage VST <1> Operation mode The switching transistor of the predriver IC turns on when the pin 17 reference voltage, VST, becomes greater than or equal to 2.5V, placing the amplifier into the operation mode. Example: When VST (min.) = 2.5V I1 is approximately equal to 0.40mA since VST = (*2) x IST + 0.6V 2.5V = 4.7k x IST + 0.6V. <2> Standby mode The switching transistor of the predriver IC turns off when the pin 17 reference voltage, VST, becomes lower than or equal to 0.6V (typ. 0V), placing the amplifier into the standby mode. Example: When VST = 0.6V I1 is approximately equal to 0mA since VST = (*2) x IST + 0.6V 0.6V = 4.7k x IST + 0.6V. (*1) Limiting resistor Determine the value of R1 so that the voltage VST applied to the standby pin (pin 17) falls within the rating (+2.5V to 5.5V (typ. 3.0V)). (*2) The standby control voltage must be supplied from the host including microcontrollers. (*3) A 4.7k limiting resistor is also incorporated inside the hybrid IC (at pin 17). 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 82k resistor. Furthermore, the time constant must be determined using 22//22 capacitors to prevent the amplifier from malfunctioning due to the audio signal.
No. A1469-11/12
STK415-100-E
STK415-100 Series BTL Application STK415-100 series
+VL -V 1 +OFF -OFF -Pre GND IN NF ST- NF IN +V OUT OUT OUT OUT +Pre -VH H Ch1+ Ch1- Ch2+ Ch2L SET SET Ch1 Ch1 BY Ch2 Ch2 SUB 2345 67 8 9 10 11 12 13 14 15 16 17 18 19 100 pF 0.22 0.22 56k
(*1) The voltage applied to the Stand-by pin (#17) must not exceed the maximum rated value (VST max).
R30 (*1)
Stand-By Control Voltage VST
60V 60V /3A /3A
56k 3pF 3pF 560 22F /10V 100/ 1W 560 22F /10V 470pF 56k
GND
1k
+VH +VL
100F /100V 100F /50V
Ch1 IN
15V 1.5k
100F /100V
56k 33F 33F
2.2F /50V 3H
Ch2 OUT
4.7 0.1F 4.7/1W
GND 1.5k 100F /50V -VL -VH 100F /100V 100F /100V
15V 100/ 1W
GND
3H 0.1F 4.7/1W
RL=8
4.7
Ch1 OUT
SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein. SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written consent of SANYO Semiconductor Co.,Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO Semiconductor Co.,Ltd. product that you intend to use. Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. Upon using the technical information or products described herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellectual property rights which has resulted from the use of the technical information and products mentioned above.
This catalog provides information as of July 2009. Specifications and information herein are subject to change without notice.
PS No. A1469-12/12

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