Ordering number : EN*A1630 Thick-Film Hybrid IC STK433-290-E 3-channel class AB audio power IC, 80W+80W+80W Overview The STK433-290-E is a hybrid IC designed to be used in 80W × 3ch 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 STK433-000/-100 series (30W to 150W × 2ch) and STK433-200(A) series (30W to 60W × 3ch) due to its pin compatibility. • Miniature package (64.0mm × 36.6mm × 9.0mm) • Output load impedance: RL = 6Ω to 4Ω supported • Allowable load shorted time: 0.3 second • Allows the use of predesigned applications for standby and mute circuits. Series Models STK433-290-E STK433-300-E STK433-320-E STK433-330-E Output 1 (10%/1kHz) 80W×3ch 100W×3ch 120W×3ch 150W×3ch Output 2 (0.4%/20Hz to 20kHz) 50W×3ch 60W×3ch 80W×3ch 100W×3ch Maximum rating VCC max (no sig.) ±54V ±57V ±65V ±71.5V Maximum rating VCC max (6Ω) ±47V ±50V ±57V ±63V Recommended operating VCC (6Ω) ±33V ±36V ±41V ±44V Dimensions (excluding pin height) 64.0mm×36.6mm×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. 21710HKIM No. A1630-1/13 STK433-290-E Specifications Absolute maximum ratings at Ta=25°C, Unless otherwise specified Tc=25°C Parameter Symbol Conditions Ratings Unit ±54 V Maximum power supply voltage VCC max (0) Non signal Maximum power supply voltage VCC max (1) RL≥6Ω Minimum operating supply voltage VCC min #13 Operating voltage VST OFF max Thermal resistance θj-c Per one power transistor 2.1 Junction temperature Tj max Should satisfy Tj max and Tc max 150 °C Operating substrate temperature Tc max 125 °C Storage temperature Tstg -30 to +125 °C Allowable time for load short-circuit ts ±47 V ±10 V -0.3 to +5.5 V VCC=±33V, RL=6Ω, f=50Hz, PO=50W, °C/W 0.3 1-channel active s Operating Characteristics at Unless otherwise specified Tc=25°C, RL=6Ω (Non-inductive Load), Rg=600Ω, VG=30dB 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 Total harmonic distortion Output noise voltage *1 *1 *3 Quiescent current Output neutral voltage #13 Stand-by ON threshold *5 #13 Stand-by OFF threshold *5 PO (W) unit (Hz) Output power f Ratings VCC (V) THD 5.0 typ 47 max 50 W 80 0.4 VG=30dB % 0.01 1.0 1k min (%) +0 -3dB 20 to 50k 1.0 Hz 55 VN ±39 VST ON ±33 Stand-by VST OFF ±33 Operation kΩ 1.0 mVrms 30 70 120 mA -70 0 +70 mV 0 0.6 2.5 3.0 V V [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 transformer power supply circuit shown in the figure below for allowable load shorted time and output noise voltage measurement. *5: The impression voltage of ‘#13 (Stand-By) pin’ must not exceed the maximum rating. Power amplifier operate by impressing voltage +2.5 to +5.5V to ‘#13 (Stand-By) pin’. *6: Please connect -PreVCC pin (#1 pin)with the stable minimum voltage, and connect so that current does not flow in by reverse bias. *7: Thermal design must be implemented based on the conditions under which the customer’s end products are expected to operate on the market. *8: The case of this Hybrid-IC is using thermosetting silicon adhesive (TSE322SX). *9: Weight of HIC: 24.8g Outer carton dimensions (W×L×H): 452mm×325mm×192mm DBA40C 10000μF +VCC + Designated transformer power supply (MG-200 equivalent) 500Ω + 500Ω -VCC 10000μF No. A1630-2/13 STK433-290-E Package Dimensions unit:mm (typ) 64.0 (R1.8) 9.0 19 2.9 4.0 1 25.8 18.7 5.0 36.6 55.6 3.6 2.0 (9.8) 0.4 0.5 18 2.0=36.0 5.5 RoHS DIRECTIVE PASS Equivalent Circuit 3 8 Pre Driver CH3 Pre Driver CH2 Pre Driver CH1 MONO IC 11 + + + 12 - - - Bias Circuit 1 2 SUB 9 5 4 6 7 10 13 14 15 16 17 19 18 No. A1630-3/13 STK433-290-E Application Circuit STK433-300sr Ch1 -PRE -VCC +VCC OUT 1 2 3 Ch1 Ch1 Ch2 Ch2 OUT OUT OUT +PRE SUB GND IN 4 6 5 7 8 9 10 Ch1 NF 11 12 ST- Ch2 BY NF 13 14 Ch2 Ch3 IN IN 15 16 Ch3 NF 17 Ch3 Ch3 OUT OUT 18 R22 R21 R20 19 C19 R08 C20 R30 C21 Stand-by Control R10 C10 R09 C06 C12 Ch3 IN C05 C11 R11 R12 R13 C13 C14 C15 R04 R03 R06 C08 R05 C07 R07 C09 Ch2 IN Ch2 IN GND R23 Ch1 IN C04 R02 L03 Ch3 OUT R01 C23 C03 L02 R16 C18 R19 Ch2 OUT C17 C01 R15 R18 GND GND GND GND C02 R17 L01 C16 Ch1 OUT R14 PCB Layout Example C23 No. A1630-4/13 STK433-290-E Recommended External Components Parts Recommended Location value R01, R23 100Ω/1W Circuit purpose Above Recommended Below Recommended value value Resistance for ripple filter. Short-through current (Fuse resistance is recommended. Ripple filter is - may increase at high constituted with C03, C23.) frequency. R02, R03, R04 1kΩ Resistance for input filters. R05, R06, R07 56kΩ Input impedance is determined. R08, R09, R10 56kΩ Voltage gain (VG) is determined with R11, R12, R13 R11, R12, R13 1.8kΩ Voltage gain (VG) is determined with R8, R9, R10. It may oscillate. With especially no (As for VG, it is desirable to set up by R11, R12, R13.) (VG<30dB) problem R14, R15, R16 4.7Ω Noise absorption resistance. - - R17, R18, R19 4.7Ω/1W Resistance for oscillation prevention. - - - - Output neutral voltage (VN) shift. (It is referred that R05=R08, R06=R09, R07=R10) R20, R21, R22 - - 0.22Ω Output emitter resistor Decrease of maximum It may cause thrmal ±10%, 5W (Metal-plate resistor is recommended.) output Power runaway R30 Note*5 Select restriction resistance, for the impression voltage of ‘#17 (Stand-By) pin’ must not exceed the maximum C01, C02 100μF/100V Capacitor for oscillation prevention. rating. • 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.) C03, C23 100μF/100V Decoupling capacitor The change in the ripple ingredient mixed in an input • The ripple ingredient mixed in an input side is removed side from a power supply line from a power supply line. (Ripple filter is constituted with R03, R04.) C04, C05, C06 2.2μF/50V 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 10μF/10V Negative feedback capacitor. The voltage gain (VG) The voltage gain (VG) • The cutoff frequency of a low cycle changes. of low frequency is of low frequency extended. However, the decreases. (fL=1/(2π ⋅ C13 ⋅ R11)) pop noise at the time of a power supply injection also becomes large. C16, C17, C18 0.1μF Capacitor for oscillation prevention. It may oscillate. C19, C20, C21 68pF Capacitor for oscillation prevention. It may oscillate. L01, L02, L03 3μH Coil for oscillation prevention. With especially It may oscillate. no problem No. A1630-5/13 STK433-290-E STK433-100/-300sr PCB PARTS LIST PCB Name: STK403-000Sr/100Sr/200Sr PCBA Location No. (*2) 2ch Amp doesn't mount parts of ( ). PARTS RATING - - Component c Hybrid IC#1 Pin Position STK433-100Sr (*2) STK433-300Sr R01 ERG1SJ101 100Ω, 1W enabled R02, R03, (R04) RN16S102FK 1kΩ, 1/6W enabled R05, R06, (R07), R08, R09, (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) Metal-plate resistor is 0.22Ω, 5W enabled recommended C01, C02, C03, C23 (*3) C04, C05, (C06) 100MV100HC 100μF, 100V 50MV2R2HC 2.2μF, 50V enabled enabled (*1) 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 L01, L02, (L03) - 68pF Short 3μH enabled VCE≥75V, IC≥1mA enabled GMB01(Reference) Di enabled RN16S***FK ***kΩ, 1/6W R31 RN16S333FK 33kΩ, 1/6W enabled R32 RN16S102FK 1kΩ, 1/6W enabled R33 RN16S202FK 2kΩ, 1/6W enabled C32 10MV33HC 33μF, 10V Stand-By Tr1 Control D1 Circuit enabled 100pF R30 2SC3332 (Reference) (*4) 13kΩ 2.7kΩ enabled J1, J2, J3, J4, J5, J6, J8, J9 - - enabled J7, JS2, JS3, JS4, JS5, JS7, JS8, JS9 - - - - enabled JS6, JS10 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. (*4) Recommended standby circuit is used. No. A1630-6/13 STK433-290-E Pin Assignments [STK433-000/-100/-200Sr & STK415/416-100Sr Pin Layout] 1 2ch class-AB 2 3 4 5 (Size) 47.0×25.6×9.0 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 H H H H G 1 1 | 2 2 1 1 2 2 N B + - + - D Y 7 15 (Size) 67.0×25.6×9.0 STK433-090-E 80W/JEITA STK433-100-E 100W/JEITA STK433-120-E 120W/JEITA 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 C C C C STK433-290-E 80W/JEITA H H H STK433-300-E 100W/JEITA 1 1 2 STK433-320-E 120W/JEITA + - 8 9 3ch class-AB (Size) 67.0×25.6×9.0 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 + - 10 11 3ch classAB/2.00mm (Size) 64.0×36.6×9.0 STK433-330-E 150W/JEITA 2ch class-H 1 2 3 4 5 6 7 (Size) 64.0×31.1×9.0 12 13 14 15 16 17 18 19 I N S N I N F T F N 2ch classH/2.00mm 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 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 3ch class-H 1 2 5 6 7 + - + - 8 9 10 11 (Size) 64.0×31.1×9.0 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. A1630-7/13 STK433-290-E THD - PO Total power dissipation within the board, Pd - W 100 7 5 3 2 VCC=±33V RL=6Ω VG=30dB 3ch Drive Rg=600Ω Tc=25°C Ch1 measurement 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=1kHz 2 3 5 7 1.0 2 3 5 7 10 2 3 5 7 100 Output power, PO/ch - W 100 RL=6Ω 3ch Drive VG=30dB Rg=600Ω Tc=25°C Ch1 measurement 60 40 100 80 60 40 20 0 0.1 2 3 5 7 1.0 2 3 z) kH =1 5 7 10 2 3 5 7 100 2 3 Output power, PO/ch - W 120 100 5 71000 ITF02733 PO - f VCC=±33V RL=6Ω VG=30dB Rg=600Ω Tc=25°C 3ch Drive Ch1 measurement THD=10% 80 THD=0.4% 60 40 20 20 0 10 120 Pd - PO VCC=±33V f=1kHz RL=6Ω VG=30dB Rg=600Ω Tc=25°C 3ch Drive 140 (f % .4 z) 0 kH 0 D= 2 TH (f= % 4 . 0 D= TH 80 140 ITF02732 (f= 1k Hz ) Output power, PO/ch - W 120 5 71000 PO - VCC TH D= 10 % 140 2 3 Output power, PO/ch - W Total harmonic distortion, THD - % Evaluation Board Characteristics 20 30 Supply voltage, VCC - ±V 40 50 ITF02734 0 10 2 3 5 7 100 2 3 5 7 1k 2 3 Frequency, f - Hz 5 7 10k 2 3 5 7100k ITF02735 [Thermal Design Example for STK433-290-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. A1630-8/13 STK433-290-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 109.7W 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 ≈ 85.0W (when 1/8PO max. = 10W, PO max. = 80W). The number of power transistors in audio amplifier block of these hybrid ICs, N, is 6, 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)/85.0 < 0.88 From formula (2)' θc-a < (150 − 50)/85.0 − 2.1/6 < 0.82 Therefore, the value of 0.82°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. STK433-300series Stand-by Control & Mute Control & Load-Short Protection Application (*1) The impression voltage of a Stand-by terminal (#13) is the maximum rating (VST max). Please set up not to exceed. STK433-300 series 2 3 Ch2 OUT 5 6 4 9 10 Ch1 NF ST- Ch2 BY NF 11 12 13 14 Ch2 IN Ch3 IN Ch3 NF 15 16 17 1kΩ Ch3 Ch3 OUT OUT 18 56kΩ 6.8kΩ Stand-by Control(ex) H: Operation Mode(+5V) L: Stand-by Mode(0V) 33kΩ 19 2.7kΩ 33μF /10V 2kΩ Ch3 IN 56kΩ 56kΩ 8 7 Ch1 IN 56kΩ 6.8kΩ 0.22Ω/5W 56kΩ 6.8kΩ Ch2 OUT +PRE SUB GND 0.22Ω/5W 1 Ch1 OUT 0.22Ω/5W Ch1 -PRE -VCC +VCC OUT Load Short Protection Circuit 22kΩ 10kΩ Ch2 IN 10kΩ GND 10kΩ Ch1 IN 56kΩ 10kΩ 1kΩ 0.1μF 100kΩ 2.2kΩ Latch Up Circuit 10kΩ +VCC Mute Control H: Single Mute L: Normal Ch3 OUT Ch2 OUT GND +5V GND Stand-by Control GND GND -VCC +5V Mute Control MUTE Ch1 OUT ST-BY PLAY MUTE ST-BY SUB.GND No. A1630-9/13 STK433-290-E [STK433-300 series Stand-By Control Using Example] Characteristic • It can largely improve a pop noise to occur in power supply ON/OFF by using recommended Stand-By Control Application. • Because It can perform Stand-By Control by regulating limit resistance to the voltage such as used microcomputers, a set design is easy. (ex) STK433-300series test circuit. When impressed by Stand-by control control [+5V]. 1kΩ 33kΩ Concerning pin 13 reference voltage VST 2.7kΩ(*1) Sink current IST 1 2 3 4 -PRE -VCC +VCC Ch1 OUT 5 Ch1 OUT 6 7 8 Ch2 OUT Ch2 OUT +PRE STK433-300 series 9 10 SUB GND 11 Ch1 IN 13 12 Ch1 NF STBY ΔVBE Bias Circuit in PreDriver IC Stand-by Control H: Operation Mode (+5V) L: Stand-by Mode (0V) ΔVBE 14 15 16 17 18 19 Ch2 NF Ch2 IN Ch3 IN Ch3 NF Ch3 OUT Ch3 OUT 4.7kΩ(*2) 33μF (*3) 2kΩ (*4) ex) Stand-By control voltage=+5V VST=(5V-VBE×2)×4.7kΩ/((*1)+4.7kΩ)+VBE =(5V-0.6V×2)×4.7kΩ/(4.7kΩ+2.7kΩ)+0.6V ≈3.0(V) Operation Explanation (1) Concerning pin 13 reference voltage VST <1> Operation mode The SW transistor of bias circuit is turned on at VST≥2.5V, and the amplifier becomes operation mode. ex) VST=2.5V VST=(*2)×IST+0.6V→2.5V=4.7kΩ×IST+0.6V, IST≈0.40mA <2> Standby mode The SW transistor of Pre-driver IC is turned off at VST≤0.6V (typ0V), and the amplifier becomes Stand-By Mode. ex) VST=0.6V VST=(*2)×IST+0.6V→0.6V=4.7kΩ×IST+0.6V, IST≈0mA (*3) It can improve a pop noise at power up time by giving a time constant of the condenser during operation. (*4) Please decide a time constant to discharge the condenser during standby. No. A1630-10/13 STK433-290-E STK433-300-E series Stand-by control, Mute control, Load-short protection & DC offset protection application STK433-300-E series 4 6 5 56kΩ 6.8kΩ 8 Ch1 NF ST-BY Ch2 NF Ch2 IN Ch3 IN Ch3 NF Ch3 OUT Ch3 OUT 9 10 11 12 14 15 16 17 18 19 13 56kΩ 6.8kΩ 56kΩ 56kΩ 56kΩ 6.8kΩ 7 Ch1 IN (*1) The voltage applied to the Stand-by pin (#13) must not exceed the maximum rated value (VST max). 1kΩ (*1) (ex) 2.7kΩ Stand-by Control (ex) H: Operation Mode (+5V) L: Stand-by Mode (0V) 33kΩ 33μF /10V 2kΩ 56kΩ 3 GND 0.22Ω/5W 2 0.22Ω/5W 1 SUB 0.22Ω/5W Ch1 Ch2 Ch1 Ch2 -PRE -VCC +VCC OUT(+) OUT(-) OUT(+) OUT(-) +PRE Load short protection circuit Ch3 IN 10kΩ 22kΩ 56kΩ 10kΩ Latch up circuit 0.1μF Ch2 IN GND 10kΩ 1kΩ Ch1 IN 10kΩ (*4) R2 10kΩ +VCC Ch3 OUT GND Ch2 OUT 2.2kΩ 100kΩ Mute Control H: Single Mute L: Normal +5V GND Stand-by Control 82kΩ 82kΩ GND +5V Mute Control 22μF GND 82kΩ -VCC 100kΩ 22μF MUTE Ch1 OUT ST-BY DC offset protection PLAY MUTE ST-BY STK433-300-E Application Explanation STK433-300-E series Stand-By Circuit in PreDriver IC Point.B ΔVBE 4 6.8kΩ 56kΩ 5 6 56kΩ 6.8kΩ 8 SUB 9 10 11 Ch2 NF Ch2 IN Ch3 IN Ch3 Ch3 NF OUT(+) 12 14 15 16 17 13 Ch3 OUT(-) 18 19 1kΩ (*1)R1 (ex) 2.7kΩ IST 33kΩ Stand-By Control Voltage VST 33μF 2kΩ Tr2 56kΩ 56kΩ Tr1 (2) Load short detection part 7 1) Stand-by control circuit part H: Operation mode (+5V) L: Stand-by mode (0V) 4.7kΩ Ch1 NF ST-BY 56kΩ 6.8kΩ 22kΩ 56kΩ I2 Point.C I3 Tr4 Point.B Tr1 1kΩ (*4) R2 0.1μF 10kΩ 0.22Ω/5W 3 Ch1 GND IN Point.C 56kΩ 2 0.22Ω/5W 1 Ch2 Ch2 OUT(+) OUT(-) +PRE 0.22Ω/5W Ch1 Ch1 -PRE -VCC +VCC OUT(+) OUT(-) Operate mode (VSTOFF) ≥ 2.5V Stand-by mode (VSTON) ≤ 0.6V (0V typ) SW transistor 100kΩ -VCC 82kΩ Ch1 OUT 82kΩ (3) Latch-up circuit part Tr5 Ch2 OUT Ch3 OUT Tr6 22μF 82kΩ 22μF 100kΩ (4) DC offset protection The protection circuit application for the STK433-300-Esr 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 No. A1630-11/13 STK433-290-E 1) Stand-by control circuit block (Reference example) STK433-300-E series test circuit (when +5V is applied to Stand-by control.) 1kΩ (*3) VST ΔVBE 1 2 3 -PRE -VCC +VCC 4 5 6 Ch1 OUT Ch1 OUT Ch2 OUT 7 8 Ch2 +PRE OUT 9 SUB 10 GND 11 12 Ch1 IN Ch1 ST-BY NF 4.7kΩ STK433-300-E series ΔVBE Stand-By Circuit in PreDriver IC 13 14 15 16 17 18 19 Ch2 NF Ch2 IN Ch3 IN Ch3 NF Ch3 OUT Ch3 OUT Stand-by Control Voltage H: Operation Mode (+5V) L: Stand-by Mode (0V) 33kΩ (*1) R1 2.7kΩ 33μF (*2) 2kΩ (*3) ex) Stand-By control voltage=+5V VST=(5V-VBE×2)×4.7kΩ/((*1)+4.7kΩ)+VBE =(5V-0.6V×2)×4.7kΩ/(4.7kΩ+2.7kΩ)+0.6V ≈3.0(V) 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 voltage flowing into pin 13 (VST) becomes 0.25V or greater. <2> Stand-By Mode When the voltage flowing into pin 13 (VST) is stopped (=0V), 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 voltage flowing into the stand-by pin (pin 13) does not exceed its maximum rated value VST 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 (*2) is discharged in standby mode. 2) Load short 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 When I2 was supplied to latch-up circuit, TR3 operate. VST becomes Stand-By Mode (0V) when TR3 operates (I3 flows), the power amplifier is protected. Stand-By Mode is maintained when once TR3 operates because TR3 and TR4 compose the thyristor. It is necessary to make the Stand-By Control voltage (*2) L (0V) once to release Stand-By mode and to make the power amplifier operate again. After, when Stand-By Control (*2) is returned to H (ex, +5V), it operates again. (*4) I3 is changed depending on the power-supply voltage (-VCC). Please set resistance (R2) to become I1 < I3 by the following calculation types. 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," or "OUT CH3," 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. No. A1630-12/13 STK433-290-E 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 February, 2010. Specifications and information herein are subject to change without notice. PS No. A1630-13/13