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Ordering number : ENA0316
Monolithic Linear IC
LA42152
Overview
Audio Output for TV application
15W x 2ch Power Amplifier
LA42152 is 15W 2-channel AF power amplifier intended for televisions.
Functions
* 15W x 2 channels (VCC = 16.5V, RL = 8) * Standby function * Mute function * 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).
Model name LA42051 LA42052 LA42351 LA42352 LA42071 LA42072 LA42152 PO 5W 5W 5W 5W 7W 7W 15W Channel Monaural Stereo Volume
Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Allowable power dissipation Maximum junction temperature Thermal resistance Operating temperature Storage temperature Symbol VCC max Pd max Tj max jc Topr Tstg No signal Infinite heat sink Conditions Ratings 24 15 150 2 -25 to +75 -40 to +150 Unit V W C C/W C C
Any and all SANYO Semiconductor 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 Semiconductor representative nearest you before usingany SANYO Semiconductor products described or contained herein in such applications. SANYO Semiconductor 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 Semiconductor products described or contained herein.
83006 / 42606 MS JK B8-7286 No.A0316-1/5
LA42152
Operating Conditions at Ta=25C
Parameter Recommended supply voltage Recommended load resistance Allowable operating voltage range Symbol VCC RL VCC op Conditions Ratings 16.5 8 5.5 to 22 unit V V
Electrical Characteristics at Ta = 25C, VCC = 16.5V, RL = 8, f = 1kHz, Rg = 600
Parameter Standby current Quiescent current Output power Total harmonic distortion Voltage gain Output noise voltage Ripple rejection Channel separation Muting attenuation Muting control voltage (The Pin 6 voltage) Standby control voltage (The Pin 5 voltage) Input resistance Ri VST Symbol ISTB ICCO PO THD VG VNO SVRR CH.Sep ATT Vmute Amplifier off Rg = 0, RL = open THD = 10% PO = 1W VO = 0dBm Rg = 0, BPF = 20Hz to 20kHz Rg = 0, fR = 100Hz, VCCR = 0dBm Rg = 10k, VO = 0dBm VO = 1Vrms, BPF = 20Hz to 20kHz Muting on Muting off Amplifier on Amplifier off 50 50 80 1.7 0 2.5 0 21 30 33 40 13 Conditions min Ratings typ 0 70 15 0.06 35 0.2 60 60 90 3.0 0.5 20 0.5 39 0.2 37 0.4 max 10 150 A mA W % dB mVrms dB dB dB V V V V k Unit
Package Dimensions
unit : mm 3049B
26.8 (20.0) 4.0
7.0
1.0min
(R1.7) (11.8)
1 12 2.0 0.5 1.0
6.0
0.4 2.0
(2.4)
SANYO : SIP12H
13.2max
(8.4)
No.A0316-2/5
LA42152
Block Diagram
Application Circuit Example
No.A0316-3/5
LA42152
External Components
C1,C2 : Input coupling capacitors, which are recommended to be 4.7F 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. : Capacitor for the starting time of ripple filter and amplifier, which is recommended to be 47F. : Capacitor and resistor for muting. C4 is necessary even when no muting function is provided. : Power supply capacitor. : Capacitors and resistors for prevention of oscillation. For C6 to C9, polyester film capacitors. and having satisfactory temperature characteristics are recommended. Uses 2.2 resistor together.
C3 C4,R1 C5 C6 to C9 R2 to R5
1. Muting function (Pin 6) Mute ON when the voltage of pin 6 is 1.7V (min) or more. Set the VM 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. The constant must be determined after review because it is concerned with the pop sound at mute ON/OFF. C4 is concerned 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 VM = 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 0 to 0.5V 2.5 to 20V Amplifier OFF ON Standby ON OFF
To suppress 5 pin inflow current when the impressed voltage of VSTB is high, limitation resistance (RSTB) is inserted. Example: Limiting the inrush current to pin 5 to 500A or less
RSTB= Application voltage (VSTB) - 2VBE(about 1.4V) 500A - 15k
No.A0316-4/5
LA42152
Usage Note
1. Lightening (power supply - output short-circuit), ground fault (GND - output short-circuit), and load short-circuit protection circuits are incorporated. These protection circuits are activated in case of abnormal connection. These circuits are active while above abnormal connection continues 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 160C or more, controlling the output gradually to the attenuated condition. 3. During use near the maximum rating, the product may suffer damage 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, etc.
Specifications of any and all SANYO Semiconductor 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 Semiconductor 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 Semiconductor 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 Semiconductor 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 Semiconductor 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 Semiconductor 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, 2006. Specifications and information herein are subject to change without notice.
PS No.A0316-5/5

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