42606 ms jk b8-7286 no.a0316-1/5 la42152 overview la42152 is 15w 2-channel af power amplifier intended for televisions. functions ? 15w 2 channels (v cc = 16.5v, r l = 8 ? ) ? standby function ? mute function ? thermal protection circuit la42000 series is power ic which made pin compatible altogeth er 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 { 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 2 c/w operating temperature topr -25 to +75 c storage temperature tstg -40 to +150 c orderin g number : ena0316 monolithic linear ic audio output for tv application 15w 2ch power amplifier
la42152 no.a0316-2/5 operating conditions at ta=25 c parameter symbol conditions ratings unit recommended supply voltage v cc 16.5 v recommended load resistance r l 8 ? allowable operating voltage range v cc op 5.5 to 22 v electrical characteristics at ta = 25 c, v cc = 16.5v, r l = 8 ? , f = 1khz, rg = 600 ? ratings parameter symbol conditions min typ max unit standby current i stb amplifier off 0 10 a quiescent current i cco rg = 0, r l = open 40 70 150 ma output power p o thd = 10% 13 15 w total harmonic distortion thd p o = 1w 0.06 0.2 % voltage gain vg v o = 0dbm 33 35 37 db output noise voltage v no rg = 0, bpf = 20hz to 20khz 0.2 0.4 mvrms ripple rejection svrr rg = 0, f r = 100hz, v cc r = 0dbm 50 60 db channel separation ch.sep rg = 10k ? , v o = 0dbm 50 60 db muting attenuation att v o = 1vrms, bpf = 20hz to 20khz 80 90 db muting on 1.7 3.0 v muting control voltage (the pin 6 voltage) v mute muting off 0 0.5 v amplifier on 2.5 20 v standby control voltage (the pin 5 voltage) v st amplifier off 0 0.5 v input resistance r i 21 30 39 k ? package dimensions unit : mm 3049b sanyo : sip12h 26.8 (20.0) (r1.7) (8.4) 12 1 (11.8) 0.5 2.0 4.0 0.4 2.0 7.0 (2.4) 1.0 13.2max 6.0 1.0min
la42152 no.a0316-3/5 block diagram application circuit example
la42152 no.a0316-4/5 external components c1,c2 : input coupling capacitors, which are recommended to be 4.7 f or less. the input circuit is of a zero bias type, so that the input pin potential is close to zero volts. therefore, the polarity must be determined depending on the dc potential of a circuit connected in the previous stage of la42152. c3 : capacitor for the starting time of ripple filte r and amplifier, which is recommended to be 47 f. c4,r1 : capacitor and resistor for muting. c4 is necessary even when no muting function is provided. c5 : power supply capacitor. c6 to c9 r2 to r5 : capacitors and resistors for preven tion of oscillation. for c6 to c9, polyester film capacitors. and having satisfactory temperature character istics are recommended. uses 2.2 ? resistor together. 1. muting function (pin 6) mute on when the voltage of pin 6 is 1.7v (min) or more. set the v m application voltage so that the voltage of pin 6 becomes 1.7v or more. the time constant of mute is determined with r1 and c4. th e constant must be determined after review because it is concerned with the pop sound at mute on/off. c4 is concer ned with the pop sound also when the amplifier is turned on, so that this is necessary even when the mute function is not used. example: the voltage of pin 6 becomes about 1.8v under conditions of v m = 5v and r1 = 15k ? . 2. standby function (pin 5) the amplifier is turned on when the voltage of 2.5v (min) or more is applied to pin 5. control voltage of pin 5 pin 5 voltage amplifier standby 0 to 0.5v off on 2.5 to 20v on off to suppress 5 pin inflow current when the impressed voltage of v stb is high, limitation resistance (r stb ) is inserted. example: limiting the inrush current to pin 5 to 500 a or less application voltage (v stb ) ? 2v be (about 1.4v) r stb = ? 15k ? 500a
la42152 ps no.a0316-5/5 usage note 1. lightening (power supply - output short-circuit), ground faul t (gnd - output short-circuit), and load short-circuit protecti on circuits are incorporated. these protection circuits are activated in case of abnormal connection. these circuits are active while above abnormal connection c ontinues and reset automatically when such abnormality is removed. depending on operation conditions, the protective circuits remain locked and continue to be active even when abnormal condition is removed. in this case, turn off standby or power supply temporarily and the protective circuits can be reset. 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 da mage if even 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, et c. this catalog provides information as of april, 20 06. specifications and information herein are subject to change without notice. ? specifications of any and all sanyo products describ ed or contained herein st ipulate the performance, characteristics, and functions of t he described products in the independe nt state, and are not guarantees of the performance, characteristics, and functions of t he 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. ? sanyo electric co., ltd. strives to supply high-qual ity high-reliability products. however, any and all semiconductor products fail with some probability. it is possible that these probabilistic failures could give rise to accidents or events that could endanger human live s, that could give rise to smoke or fire, or 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 desi gn, redundant design, and structural design. ? in the event that any or all sanyo products (inclu ding technical data, services) described or contained herein are controlled under any of applicable local expor t control laws and regulations, such products must not be exported without obtaining t he export license from the authorities concerned in accordance with the above law. ? no part of this publication may be reproduced or transmi tted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, of otherwise, without the prior written pe rmission of sanyo electric co., ltd. ? any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. when designing equipm ent, refer to the "delivery specification" for the sanyo product that you intend to use. ? information (including circ uit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. sanyo believes info rmation herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of in tellectual property rights or other rights of third parties.
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