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Ordering number:ENN2251B
Monolithic Linear IC
LA4280
2-Channel 10W AF Power Amplifier, for Home Stereo, TV Use
Features
* High-power 2-channel AF power amplifier. * Low distortion. * Minimum number of external parts requierd (no bootstrap capacitor requierd). * Low pop noise at the time of power switch ON/OFF. * Excellent ripple rejection (58dB typ). * Wide operating voltage range (10V to 40V). * External muting available. * On-chip protector against abnormalities (thermal shutdown, overvoltage).
Package Dimensions
unit:mm 3023A-SIP14H
[LA4280]
37.0 30.0 4.5
15.0max
13.8
R1.7 0.8min 8.0
6.0
1
2.54 0.6 1.4
14
0.4 2.25
1.99
Specifications
Absolute Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Maximum output current Allowable power dissipation Operating temperature Storage temperature Symbol VCC max IO peak Pd max Topr Tstg With heat sink Quiescent Conditions
SANYO : SIP14H
Ratings 45 4 25 -20 to +75 -40 to +150
11.0
Unit V A W
C C
Operating Conditions at Ta = 25C
Parameter Recommended supply voltage Recommended load resistance Operating voltage range Symbol VCC RL VCC op Conditions Ratings 32 8 10 to 40 Unit V V
Operating Characteristics at Ta = 25C, VCC=32V, RL=8, f=1kHz, Rg=600, See specified test circuit
Parameter Quiescent current Voltage gain Voltage gain difference Output power Symbol Icco1 Icco2 VG VG Po1 Po2 THD=1% THD=3% 9.0 10.0 10.0 11.5 Quiescent MT/SW on Conditions Ratings min 30 30 38 typ 60 56 40 max 100 100 42 1.5 Unit mA mA dB dB W W
Continued on next page
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 Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
21500TH (KT)/8016KI/D227AT/1179YT No.2251-1/3
LA4280
Continued from preceding page.
Parameter Total harmonic distortion Output noise voltage Ripple rejection Crosstalk Muting Symbol TH D VNO SVRR CT Vo (MT) Conditions PO=2W Rg=10k, BW=20Hz to 20kHz Rg=10k, fR=100Hz, VR=0dBm Rg=10k MT/SW on, Vi=-5dBm 45 45 Ratings min typ 0.05 0.25 58 60 -35 max 0.20 1.0 Unit % mV dB dB dBm
Equivalent Circuit Block Diagram and Pin Assignment
No.2251-2/3
LA4280
Sample Applicatin Circuit
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 expor ted without obtaining the expor t 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 February, 2000. Specifications and information herein are subject to change without notice.
PS No.2251-3/3

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