30508 ti im b8-8019 no.a1037-1/6 la42051 overview la42051 is 5w 1-channel af power am plifier intended for televisions. features ? p o1 5w 1ch (v cc = 18v, r l = 8 ) ? built-in standby function ? pop noise reduction function ? ripple filter ? thermal protection circuit la42000 series is power ic which made pin compatible altogether in 5 to 15w. they consist of four kinds of power ics (mono, stereo, mono with volume function, stereo with volume function. they realized pcb layout communalization of an audio power block of tv). channel model name p o monaural stereo volume la42051 5w { LA42052 5w { la42351 5w { { la42352 5w { { la42071 7w { la42072 7w { la42152 15w { ordering number : ena1037 monolithic linear ic audio output for tv application 5w 1ch power ampilfier 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.
la42051 no.a1037-2/6 specifications absolute maximum ratings at ta = 25 c parameter symbol conditions ratings unit maximum supply voltage v cc max no signal 24 v allowable power dissipation pd max infinite heat sink 15 w maximum junction temperature tj max 150 c thermal resistance jc 3 c/w operating temperature topr -25 to +75 c storage temperature tstg -40 to +150 c operating condition at ta = 25 c parameter symbol conditions ratings unit recommended supply voltage v cc 18 v recommended load resistance r l 8 allowable operating supply voltage range v cc op 5.5 to 22 v operating characteristics at ta = 25 c, v cc = 18v, r l = 8 , f = 1khz, rg = 600 ratings parameter symbol conditions min typ max unit standby current i stb amplifier off 1 10 a quiescent current i cco rg = 0 15 25 50 ma output power p o thd = 10% 4 5 w total harmonic distortion thd p o = 1w 0.15 0.4 % voltage gain vg v o = 0dbm 33 35 37 db output noise voltage v no rg = 0 , bpf = 20hz to 20khz 0.05 0.25 mvrms ripple rejection svrr rg = 0 , fr = 100hz, v cc r = 0dbm 50 60 db v stb -h amplifier on 1 5 v standby control voltage (pin 5) v stb -l amplifier off 0 0.5 v input resistance ri 21 30 39 k package dimensions unit : mm (typ) 3107b sanyo : sip13h (11.8) (10.0) 0.5 (0.8) 2.0 25.6 ( 2.0) 3.4 c0.7 15.4max 1.0 min 3.0 min 11.2 (13.9) 4.5 1 13 0.4 1.2 1.15 2.4 ambient temperature, ta - c pd max - ta allowable power dissipation, pd max - w 0 2 4 6 8 10 12 14 16 18 -20 0 20 40 15 11.7 5.8 60 80 100 120 140 160 infinite heat sink no fin 100 100 1.5mm 3 50 50 1.5mm 3 al heat sink mounting torque 39n ? cm flat washer silicone greas applird j=3 c/w
la42051 no.a1037-3/6 block diagram test circuit description of external parts c1 : input coupling capacitor, for which 1.0 f is recommended. the potential of input pin is 2v be (about 1.4v). therefore, the polarity must be determ ined according to the dc potential of the circuit connected to the previ ous step of la42051. c2 : capacitor for ripple filter, for which 100 f is recommended. c3 : capacitor for attenuation of pop noise, for which 4.7 f is recommended. c4 : power supply capacitor. c5 : output capacitor, for which 470 f is recommended. determine the constant while taking into account a fact that, with the capacitance set to 470 f or less, the roll-off frequenc y decreases in the low range. ripple filter out vcc pwr gnd stb in pre gnd p.p c2 100 f /16v n.c. 1 2 3 4 5 6 7 8 9 10 11 12 13 c1 1 f /10v c3 4.7 f /16v c4 1000 f /25v la42051 c5 470 f /16v n.c. n.c. rl n.c. n.c.
la42051 no.a1037-4/6 1. standby function (pin 5) the amplifier can be turned on/off through high/low control of pin 5. the amplifier is turned on when the voltage of 1.0v (min) or more is applied to pin 5. pin 5 control voltage voltage of pin 5 amplifier standby 0 to 0.5 off on 1.0 to 5.0 on off insert a limiting resistor (rstb) when the inrush current to pin 5 is to be limited if the application voltage to vs is high. example: when vs=5v, rstb=5.1k is inserted the inrush current to pin 5 is about 750 a and the potential of pin 5 is about 1.2v. 2. ripple filter and mute function (pin 1) the potential of pin 1 is about 1/2 v cc . muting to control the output signal becomes effective by shifting down pin 1 with 300 to 500 . note that the mute suppression rate d ecreases when the resistance exceeds 750 . 3. input pin (pin 4) the potential of input pin is 2v be (about 1.4v). therefore, the polarity must be determined according to the dc potential of the circuit connected to the previous step of la42051. the standard input resistance is 30k . for the input capacitor, 1.0 f is recommended. the starting time with power on in this case is about 0.2s. the starting time become s about 1.5s when the capacitance is 10 f. 4. p.p (pin 6) this is the pin to attenuate the pop noise during power on/ off. note that, with the capacitance set at 10 f or more, the sound may remain because the signal is not cut off. pin 6 potential = + 5.6v cautions for use 1. as power fault (power supply - output short-circuit) and ground fault (gnd - output short-circuit) protective circuits are not incorporated, due care must be taken during use. 2. the thermal protective circuit is incorporated, which is activated when the junction temperature (tj) rises to about 160 c or more, controlling the output gradually to the attenuated condition. 3. during use near the maximum rating, the product may suffer damage if the slightest fluctuation of condition exceeds the maximum rating. be sure to use the product within a range which never exceeds the maximum rating while allowing sufficient margin for the supply voltage, etc. v cc - v ce (about 0.3v) -5.6v 2
la42051 no.a1037-5/6 icco - vcc 0 10 20 30 40 50 60 0 2 4 6 8 1012141618202224 vcc [v] icco [ma] rl=8 rg=0 po - vcc 0 2 4 6 8 10 4 6 8 10 12 14 16 18 20 22 vcc [v] po [w] rl=8 rg=600 f=1khz thd=10% thd - po 0.01 0.1 1 10 100 0.1 1 10 po [w] thd [%] f=1khz f=100hz f=10khz vcc=18v rl=8 rg=600 thd - f 0.01 0.1 1 10 100 10 100 1000 10000 100000 f [hz] thd [%] vcc=18v rl=8 rg=600 po=1w svrr - vcc -80 -70 -60 -50 -40 -30 -20 -10 0 4 6 8 1012141618202224 vcc [v] svrr [db] rl=8 rg=0 fr=100hz vr=0dbm cvcc=1 f svrr - fr -80 -70 -60 -50 -40 -30 -20 -10 0 10 100 1000 10000 fr [hz] svrr[db] vcc=18v rl=8 rg=0 vr=0dbm cvcc=1 f f-response -16 -14 -12 -10 -8 -6 -4 -2 0 2 10 100 1000 10000 100000 1000000 f [hz] response [db] vcc=18v rl=8 rg=600 vo=0dbm(at f=1khz) vno - rg 0 0.1 0.2 0.3 100 1000 10000 100000 rg [ ] vno [mvrms] vcc=18v rl=8 din audio
la42051 no.a1037-6/6 ps this catalog provides information as of march, 2008. specifications and information 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. svrr - vr -80 -70 -60 -50 -40 -30 -20 -10 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 vr [vrms] svrr [db] vcc=18v rl=8 rg=0 fr=100hz cvcc=1 f svrr=20log(vo/vr) pd-po 0 0.5 1 1.5 2 2.5 3 0.1 1 10 po[w] pd[w] vcc=18v vcc=14v vcc=12v rl=8 rg=600 f=1khz
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