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Ordering number: EN2677C
Monolithic Linear IC
LA4700N
2-Channel 12W AF Power Amplifier for Car Stereos
Functions
Package Dimensions
unit : mm
. Standby switch function built in . Pop noise suppressor built in . Thermal shutdown circuit built in . Overvoltage/surge protector built in . Output pin-to-GND short protector built in . Output pin-to-V short protector built in . Load short protector built in
CC
3109-SIP18H
[LA4700N]
Features
. Low pop noise at the time of power supply ON/OFF . Excellent oscillation stability
Specifications
Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Symbol VCC max1 VCC max2 VCC max3 Surge supply voltage Maximum output current Allowable power dissipation Operating temperature Storage temperature VCC surge Io peak Pd max Topr Tstg Quiescent Operating t = 200 ms rise time 1 ms Per channel *Note Conditions Quiescent t = 30 s
SANYO : SIP18H
Ratings 26 18 16 50 4 37.5 -30 to +75 -40 to +150
Unit V V V V A W C C
Operating Conditions at Ta = 25C
Parameter Recommended operating voltage Operating voltage range Recommended load resistance Symbol VCC VCC op RL BTL/2ch Conditions Ratings 13.2 10 to 16 4 to 8 Unit V V
*Note: Use flat head screws for attaching heat sink with tightening torque 39 to 59 Nccm.
Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO 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 products described or contained herein.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
41596HA(II)/3140MO/N257TA,TS No.2677-1/6
LA4700N
Operating Characteristics at Ta = 25C, VCC = 13.2 V, RL = 4 , f = 1 kHz, Rg = 600 , See specified Test Circuit
Parameter Quiescent current Voltage gain Voltage gain difference Total harmonic distortion Output voltage Output noise voltage Ripple rejection Channel separation Standby current Offset voltage Symbol Icco VG VG THD Po VNO SVRR CHsep 1st Voff Conditions min 60 48 typ 140 50 0.15 12 0.2 55 60 10 max 200 52 2 0.75 0.4 Unit mA dB dB % W mV dB dB A mV
Po = 1 W THD = 10% Rg = 0, B.P.F. = 20 Hz to 20 kHz Vr = 0 dBm, fR = 100 Hz, Rg = 0 Po = 1 W, Rg = 10 k
10 40 50 -300
100 300
Allowable power dissipation, Pd max - W
Infinite heat sink
No fin
Ambient temperature, Ta - C
Equivalent Circuit Block Diagram
Inverting NF
Noninverting NF
Inverting amp
Inverting output
Standby switch
Noninverting amp
Noninverting output
Ripple filter
protector
Noninverting amp
Pop noise suppressor
Noninverting output
Inverting amp
Inverting output
Noninverting NF
Inverting NF
No.2677-2/6
LA4700N
Sample Application Circuit
Main switch
Noninverting NF
Inverting NF
CMOS con contl
Inverting output Inverting output
Noninverting output
Noninverting output
* Connect the portion bounded by a dotted line according to your intended applications. When the power relay is not used, connect pin 9 to GND. In this case, the power switch is used to turn ON/OFF the LA4700N or the main switch is used to turn ON/OFF the LA4700N.
Icco - VCC Quiescent current, Icco - mA
Inverting NF
Noninverting NF
Po - VIN
Muting
Supply voltage, VCC - V
Output power, Po - W
Input voltage, VIN - mV
No.2677-3/6
LA4700N
THD - Po Total harmonic distortion, THD - % f Response
Output power, Po - W THD - f Total harmonic distortion, THD - % Total harmonic distortion, THD - %
Response - dB
Frequency, f - Hz THD - VCC
Frequency, f - Hz Pd, ICC - Po Power dissipation, Pd - W
Supply voltage, VCC - V Ist - VCC
Power supply capacitor 0.22F/Mylar
Output power, Po - W SVRR - fR Ripple rejection ratio, SVRR - dB Output noise voltage, VNO - mV
Standby current, Ist - A
Current drain, Icc - A
Supply voltage, VCC- V VNO - VCC
Ripple frequency, fR - Hz
Supply voltage, VCC - V No.2677-4/6
LA4700N
SVRR - VCC Channel separation, CH sep - dB Ripple rejection ratio, SVRR - dB CH sep - Po
Channel separation, CH sep - dB
Frequency, f - Hz To shorten tS in the application herein, the filter capacitor (pin 14) value 220 F is decreased. Filter capacitor value 100 F gives tS of 0.6 to 0.7 second.
Active-high Signal on Standby Pin - V
Locus of Potential on Output Pin - V
Supply voltage, VCC - V CH sep - f
Output power, Po - W
No.2677-5/6
LA4700N
Specifications of any and all SANYO 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. SANYO Electric Co., Ltd. strives to supply high-quality 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 lives, 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 design, redundant design, and structural design. In the event that any or all SANYO products(including technical data,services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining 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 permission 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 equipment, refer to the "Delivery Specification" for the SANYO 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. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of April, 1996. Specifications and information herein are subject to change without notice. PS No.2677-6/6

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