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51309hkim no. a1249-1/12 STK433-730-E overview the STK433-730-E is a hybrid ic designed to be used in 30w 30w (2-channel) class ab audio power amplifiers. applications ? audio power amplifiers. features ? miniature package (47.0mm 25.6mm 9.0mm) ? output load impedance: r l = 6 to 4 supported ? built-in stand-by circuit, output limiting circuit for substrate overheating, and load short-circuit protection circuit constituted by monolithic ics series models STK433-730-E stk433-760-e output 1 (10%/1khz) 30w 2 channels 50w 2 channels output 2 (0.4%/20hz to 20khz) 15w 2 channels 35w 2 channels max. rated v cc (quiescent) 30v 50v max. rated v cc (6 ) 28v 40v max. rated v cc (4 ) 25v 33v recommended operating v cc (4 ) 18v 23v dimensions (excluding pin height) 47.0mm 25.6mm 9.0mm ordering number : en*a1249 thick-film hybrid ic 2-channel class ab audio power ic , 30w+30w specifications of any and all sanyo semiconductor co.,l td. 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 ' sproductsor equipment. any and all sanyo semiconductor co.,ltd. products described or contained herein are, with regard to "standard application", intended for the use as general el ectronics equipment (home appliances, av equipment, communication device, office equipment, industrial equ ipment etc.). the products mentioned herein shall not be intended for use for any "special application" (medica l equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, t ransportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of re liability and can directly threaten human lives in case of failure or malfunction of the product or may cause har m to human bodies, nor shall they grant any guarantee thereof. if you should intend to use our products for app lications 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 n o consultation or inquiry before the intended use, our customer shall be solely responsible for the use.
STK433-730-E no. a1249-2/12 specifications absolute maximum ratings at ta = 25 c, tc=25 c unless otherwise specified parameter symbol conditions ratings unit v cc max (0) stand-by on or when no signal (stand-by off) 30 v v cc max (1) when signals are present, r l 6 (*1) 28 v maximum supply voltage v cc max (2) when signals are present, r l 4 (*1) 25 v minimum operating supply voltage v cc min 10 v stand-by pin maximum voltage vst max -0.3 to +5.5 v output current i o (peak) 1ch, ton=25ms 4.0 a per power transistor 4.2 thermal resistance j-c per package 1.1 c/w junction temperature tj max 150 c ic substrate operating temperature tc max both the tj max and tc max conditions must be met. 125 c storage temperature tstg -30 to +125 c operating characteristics at tc=25 c, r l =4 , rg=600 , vg=30db, non-inductive load r l , using constant- voltage power supply and specification test circuit , unless otherwise specified conditions *2 ratings parameter symbol v cc (v) f (hz) p o (w) thd (%) min typ max unit p o (1) 18 20 to 20k 0.4 10 15 p o (2) 18 1k 0.4 20 output power *2 p o (3) 18.5 1k 10 30 w thd (1) 18 20 to 20k 0.4 total harmonic distortion *2 thd (2) 18 1k 5.0 vg=30db 0.08 % output power transistor saturation voltage vsat 18 1k 30 10 3.8 v frequency characteristics *2 f l , f h 18 1.0 +0 -3db 20 to 50k hz input impedance ri 18 1k 1.0 55 k output noise voltage *10 v no 21.5 rg=2.2k 1.0 mvrms quiescent current i cco 21.5 no loading 12 25 50 ma output neutral voltage v n 21.5 -70 0 +70 mv pin 13 voltage when standby on *5 vst on 18 standby 0 0.6 v pin 13 voltage when standby off *5 vst off 18 operating 2.5 3.6 5.5 v pin 10 (latch operation detection pin) voltage *7 im on in short-circuit protection mode 6.2 v substrate thermal protection *8 td 18 1k 125 c overcurrent protection *8,*10 i o (peak) 18 1k 4.0 a
STK433-730-E no. a1249-3/12 [remarks] * 1: maximum ratings are limits beyond which damage to the device may occur. exceeding the maximum ratings, even momentarily, may cause damage to the hybrid ic. in sanyo semiconductor's test processes, operation at the maximum supply voltage is checked. (test conditions) v cc max (2)= 25v, r l =4 , f=1khz, po=15w, 1ch drive, ton=25ms, tc=25 c * 2: for 1-channel operation * 3: -pre v cc (pin 1) must be connected to the lowest stable potential to prevent the current flowing into the pin 1 due to reverse bias, etc. * 4: thermal design must be implemented based on the conditions under which the customer?s end products are expected to operate on the market. * 5: use the hybrid ic so that the voltage applied to the stand-by pin (pin 13) never exceeds the maximum rating. the power amplifier is turned on by applying +2.5v to +5.5v to the stand-by pin (pin 13). * 6: an output limiting circuit for substrate overheating is in corporated to protect the hybr id ic from the heat generation exceeding the maximum rating. thermal design must be im plemented from the maximu m loss pd max and "pd-tc" derating curve based on the conditions under which the cust omer's end products are expected to operate on the market. when deviating from the "pd-tc" derating curve, the desired output is not obtained, but the prescribed output is generated again by reducing the substrate temperature to within the recommended operating region. * 7: the load short-circuit protection is designed based on the specification test condition. the load short-circuit protection circuit is activated when it has detected an overcurrent in the output transistors. so if any deviation from the "pd-tc" derating curve occurs, the protection circuit is activated and the circuit shuts down in order to protect the output transistors. when the load short-circuit protection circuit has been activated and the circuit shuts down, approximately +6.2v of voltage will be placed at the monitor pin (pin 10) (normally 0v). the protection circuit operation is released by es tablishing the stand-by mode (pin 13: 0v). * 8: the substrate temperature protection rating is the design guarantee value using the specification test circuit of sanyo semiconductor. the output limiting circuit for substrate overheating ( * 6) and the load short-circuit protection circuit ( * 7) are the only protection functions incorporated. the thermal design and overcurrent protection level must be verified based on the conditions under which the customer's end products are expect ed to operate on the market. * 9: a thermoplastic adhesive resin is used to secure the case and aluminum substrate. for this reason, the hybrid ic must be fixed to the heat sink before soldering and mounted. the heat sink must be installed or removed at room temperature. * 10: use the designated transformer power supply circuit show n in the figure below for the measurement of allowable load shorted time and output noise voltage level. * 11: weight of independent hybrid ic: 12.2g outer box dimensions: 452(d) 325(w) 192(h) mm 10000 f 10000 f dba40c 500 500 +v cc -v cc + + designated transformer power supply (mg-200 equivalent)
STK433-730-E no. a1249-4/12 package dimensions unit:mm (typ) 5.0 25.6 12.8 9.0 17.6 4.0 2.9 5.5 0.4 3.6 14 2.0=28.0 2.0 (6.6) 0.5 47.0 41.2 115 (r1.8) pc - tc itf02644 0 20 40 60 80 100 120 50 0 150 100 power transistor dissipation, pc - w operating substrate temperature, tc - c pd - tc itf02645 0 20 40 60 80 100 120 50 0 150 100 power dissipation, pd - w operating substrate temperature, tc - c 2-ch drive (same output rating)
STK433-730-E no. a1249-5/12 internal equivalent circuit application circuit example 6 10 5 12 11 8 3 sub stand-by circuit 14 15 pre driver ch1 pre driver ch2 2 1 7 4 + - + - 9 13 +v cc +pre v cc in ch1 nf ch1 - v cc -pre v cc gnd monitor ch1+ ch1- ch2+ ch2- in ch2 nf ch2 st-by STK433-730-E r01 2 3 1 6 7 8 5 10 11 12 9 14 15 13 4 c01 c02 c03 r15 c13 r27 c27 r28 c28 r25 r26 r24 r23 c25 c26 +v cc gnd -v cc l11 gnd r13 c11 r11 ch1 out r16 c14 l12 gnd r14 c12 r12 ch2 out c23 r21 c24 r22 c22 c21 ch2 in ch1 in stand-b y control gnd/ sub ch1+ ch1- ch2+ ch2- +pre -pre -v cc +v cc monitor in/1 nf/1 st-by nf/2 in/2 r3 c5 detection terminal gnd
STK433-730-E no. a1249-6/12 recommended values for application parts (for the test circuit) symbol recommen ded value description larger than recommended value smaller than recommended value r01 47 ripple filtering resistors (fusible resistors are desirable) (used with c03 to form a ripple filter.) decreased pass- through current at high frequencies. increased pass- through current at high frequencies. r03 - use a limiting resistor according to t he stand-by control voltage in order to control the stand-by pin voltage vst within the rating. r11, 12 4.7 noise-absorbing resistors - - r13, 14 4.7 /1w oscillation prevention - - r15, 16 56k used with r23 and r24 to determin e the voltage gain vg. vn offset (ensure r15=r25, r16=r26 when changing.) r21, 22 1k input filtering resistor - - r23, 24 1.8k used with r15 and r16 to determine the voltage gain vg. (vg should desirably be determined by the r23 and r24 value.) likely to oscillate (vg<30db) none (vg 42db) r25, 26 56k input bias resistors (virtually determine the input impedance.) - - r27, 28 3k oscillation prevention likely to oscillate c01, 02 100 f oscillation prevention ? 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 200 f decoupling capacitors. ? eliminate ripple components that pass into the input side from the power line. (used with r01 to form a filter.) increase in ripple components that pass into the input side from the power line. c05 0.01 f a detection voltage appears during the protection operation. ad just the time constant (when the detection pin is to be used). c11, 12 0.1 f oscillation prevention (mylar capacitors are recommended.) likely to oscillate c13, 14 12pf osc illation prevention likely to oscillate c21, 22 470pf input filter capacitor (used with r21 and r22 to form a filter that suppresses high- frequency noises.) - - c23, 24 2.2 f input coupling capacitor (block dc current) - - c25, 26 10 f nf capacitor (changes the low cutoff frequency; f l =1/ (2 ? c25 ? r23) increase in low- frequency voltage gain, with higher pop noise at power-on. decrease in low- frequency voltage gain c27, 28 2200pf oscillation prevention likely to oscillate l11, 12 1 h oscillation prevention none likely to oscillate
STK433-730-E no. a1249-7/12 sample pcb trace pattern cut the pin 10 pattern here. c05 * additional components are indicated by their circuit location numbers.
STK433-730-E no. a1249-8/12 STK433-730-E test board parts list stk403-000sr/100sr/200sr pcb pcb location no. circuit location no. parts rating STK433-730-E r01 r01 erg1sj101 47 ,1w r02,r03 r21, r22 rn16s102fk 1k , 1/6w r05, r06, r08, r09 r15, r16, r25, r26 rn16s563fk 56k , 1/6w r11, r12 r23, r24 rn16s182fk 1.8k , 1/6w r14, r15 r11, r 12 rn14s4r7fk 4.7 , 1/4w r17, r18 r13, r 14 erx1sj4r7 4.7 , 1w r20, r21 - - - short r34, r35 r27, r28 rn16s561fk 3k , 1/6w c01, c02 c01, c02 50mv100hc 100 f, 50v c03 c03 50mv200hc 200 f, 50v - c05 ecq-v1h103jz 0.01 f, 50v c05, c06 c23, c24 50mv2r2hc 2.2 f, 50v (*) c07, c08 c21, c22 dd104-63b471k50 470pf, 50v c10, c11 c13, c14 dd 104-63cj120c50 12pf, 50v c13, c14 c25, c26 10mv10hc 10 f, 10v (*) c16, c17 c11, c 12 ecq-v1h104jz 0.1 f, 50v c19, c20 c27, c28 dd104-63b222k50 2200pf, 50v l01, l02 l11, l12 - 1 h tr1 2sc2274(reference) vce 50v, ic 10ma r3 rn16s133fk 1k , 1/6w r31 rn16s333fk 33k , 1/6w r33 rn16s202fk 2k , 1/6w stand-by control circuit c32 10mv33hc 33 f, 10v j1, j2, j3, j4, j5, j6, j8, j9 - - - jumper js6 - - - jumper js1 - - - jumper ? ( * ) capacitor mark ?a? si de is ?-? (negative). ? c05 does not have a location number on the pcb so the component must be mounted on the reverse side of the board.
STK433-730-E no. a1249-9/12 pin assignments [STK433-730-E/-760-e pin layout] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 (size) 47.0mm 25.6mm 9.0mm 2ch classab/2.00mm STK433-730-E 30w 2ch/jeita stk433-760-e 50w 2ch/jeita - p r e - v c c + v c c o u t / c h 1 + o u t / c h 1 - o u t / c h 2 + o u t / c h 2 - + p r e s u b / g n d m o n i t o r 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 evaluation board characteristics itf02648 0 50 40 30 20 10 5 1015202530 t h d = 1 0 % t h d = 0 . 4 % p o - v cc output power, p o /ch - w supply voltage, v cc - v pd - p o total power dissipation on pcb, pd - w output power, p o /ch - w itf02647 0 5 1.0 0.1 50 40 30 20 10 45 35 25 15 23 57 23 57 10 23 57 100 thd - p o itf02646 0.001 1.0 0.1 0.01 7 5 3 2 7 5 3 2 7 5 3 2 7 5 3 2 7 5 3 2 0.1 1.0 100 10 23 57 23 57 10 23 57 100 v cc = 18v r l =4 vg=30db rg=600 tc=25 c r l =4 vg=30db rg=600 tc=25 c f=1khz v cc = 18v r l =4 f=1khz vg=30db rg=600 tc=25 c v cc = 18v r l =4 vg=30db rg=600 tc=25 c f = 2 0 k h z f = 1 k h z p o - f itf02649 1k 10 100 50 40 30 20 10 0 2 3 57 2 3 57 2 3 57 2 3 57 10k 100k thd=10% thd=0.4% output power, p o /ch - w frequency, f - hz total harmonic distortion, thd - % output power, p o /ch - w
STK433-730-E no. a1249-10/12 [thermal design example for STK433-730-E (r l = 4 )] 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 125 c. pd c-a + ta < 125 c ................................................................................................. (1) ta: guaranteed ambient temperature for the end product condition 2: the junction temper ature, tj, of each power tr ansistor must not exceed 150 c. pd c-a + pd/n j-c + ta < 150 c .......................................................................... (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, th e required heat sink thermal resistance can be determined from formulas (1)' and (2)' . ? supply voltage v cc ? load resistance r l ? guaranteed ambient temperature ta [example] when the ic supply voltage, v cc , is 18v and r l is 4 , the total power dissipation, pd, within the hybrid ic, will be a maximum of 33w at 1khz for a continuo us sine wave signal according to the pd-p o characteristics. for the music signals normally handled by audio amplifiers, a value of 1/8p o 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 = 24.09w (when 1/8p o max. = 3.75w). 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 8.0 c/w. therefore, the required heat sink thermal resistance for a guranteed ambient temperature, ta, of 50 c will be as follows. from formula (1)' c-a < (125 ? 50)/24.09 < 3.11 from formula (2)' c-a < (150 ? 50)/24.09 ? 4.2/4 < 3.10 therefore, the value of 3.10 c/w, which satisfies both of these formulae, is the required thermal resistance of the heat sink. note that this thermal design exampl e assumes the use of a constant-voltage power supply, and is therefore not a verified design for any particular user?s end product.
STK433-730-E no. a1249-11/12 stk433-700series stand-by contro l & mute control application [the example of use stk433-*00series stand-by control circuit] features ? by using the recommended stand-by control application, the pop noise level when the power is turned on/off can be significantly reduced. ? by adjusting the limiting resistance ( * 1) in accordance with the vo ltages of the microcontroller and other components used, it is possible to perform stand-by control, facilitating the finished product design effort. (ex) stk433-*00series test circuit. when impressed by stand-by control control [+5v]. operation explanation 1) about vst ( # 13pin stand-by threshold) <1> operation mode when pin 13 reference voltage vst is equal to or greater than 2.5 v, the stand-by circuit is set off, and the amplifier is set to the operation mode. <2> stand-by mode when pin 13 reference voltage vst is equal to or less than 0.6v, the stand-by circuit is set off, and the amplifier is set to the stand-by mode. ( * 3) the pop noise that occurs when the power is turned on is reduced by providing a time constant using a capacitor during operation. ( * 4) the pop noise level is reduced by discharging the capacitor with a resistor in the stand-by mode. 2 3 4 5 6 7 8 9 10 11 12 13 14 1 15 stk433-*00series +v cc ch1 in ch1 nf ch2 in ch2 nf ch2 out ch1 out -v cc monitor +pre st-by ch1 out ch2 out -pre 33k 2k (*4) 1k (*1) 33 f (min) (*3) stand-by control circuit part h: operation mode (+5v) l: stand-by mode (0v) vbe sub/ gnd vbe ex) vst=(stand-by control-vbe*2) (*2)/((*1)+(*2))+vbe =(5v-0.6v*2) 4.3k /(4.3k +1k )+0.6v 3.68(v) stand-by circuit in pre driver ic 4.3k ( *2 ) vst st-by play mute st-by mute +5v +5v stand-by control mute control ch1 out gnd +v cc -v cc stk433-700series gnd ch2 in gnd ch1 in 33k 2k 1k 33 f 10k 10k 10k 2.2k vst gnd ch2 out mute control h: single mute l: normal stand-by control(ex) h: operation mode(+5v) l: stand-by mode(0v) 2 3 4 5 6 7 8 9 10 11 12 13 14 1 15 +v cc ch1 in ch1 nf ch2 in ch2 nf ch2 out ch1 out -v cc sub/ gnd monitor +pre st-by ch1 out ch2 out -pre monitor
STK433-730-E no. a1249-12/12 ps this catalog provides information as of may, 2 009. specifications and info rmation herein are subject to change without notice. sanyo semiconductor co.,ltd. assumes no responsibil ity for equipment failures that result from using products at values that exceed, even momentarily, rated v alues (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-qua lity high-reliability products, however, any and all semiconductor products fail or malfunction with some probab ility. it is possible that these probabilistic failures or malfunction could give rise to accident s 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. 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 us e of the technical information and products mentioned above. information (including circuit diagrams and circuit par ameters) herein is for example only; it is not guaranteed for volume production. any and all information described or contained he rein are subject to change without notice due to product/technology improvement, etc. when designing equip ment, refer to the "delivery specification" for the sanyo semiconductor co.,ltd. product that you intend to use. 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 l aws 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.

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