LA4725_09 SANYO [Sanyo Semicon Device], LA4725_09 Datasheet

LA4725_09

Manufacturer Part Number

LA4725_09

Description

2-channel 30W BTL Audio Power Amplifier

Manufacturer

SANYO [Sanyo Semicon Device]

Datasheet

1.LA4725_09.pdf (8 pages)

Current page: 1 of 8
Download datasheet (130Kb)

Ordering number : EN5715A

LA4725

Overview

Features

Specifications

Maximum Ratings at Ta = 25°C

Maximum supply voltage

Surge supply voltage

Maximum output current

Allowable power dissipation

Operating temperature

Storage temperature

The LA4725 is a 2-channel BTL audio power amplifier IC for Car audio. It was designed for the best possible audio quality

and features an extended low band roll-off frequency provided by a newly-developed NF circuit that does not require an

external capacitor. Furthermore, crosstalk, which can cause muddiness in the audio output, has been significantly reduced

by both circuit and wiring pattern improvements. Thus this amplifier can provide powerful lows and clear highs.

• Total output (EIAJ power): 30W+30W (at V CC = 14.4V, R L = 4Ω, THD = 30%)

• High-fidelity design (f L < 10Hz, f H = 130kHz)

• Extremely low impulse noise levels

• An arbitrary amplifier startup time can be set up with external components

• built-in standby switch circuit

• Full complement of built-in protection circuits (includes circuits that protect against shorting to V CC , shorting to ground,

load shorting, over-voltages and excessive temperatures)

Parameter

"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,

Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to

communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be

intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace

instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety

equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case

of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee

thereof. If you should intend to use our products for applications 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 no consultation or inquiry before the intended use, our

customer shall be solely responsible for the use.

Specifications of any and all SANYO Semiconductor Co.,Ltd. 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

device, the customer should always evaluate and test devices mounted in the customer

equipment.

s products or equipment. To verify symptoms and states that cannot be evaluated in an independent

V CC max

V CC surge

I O peak

Pd max

Topr

Tstg

Symbol

Monolithic Linear IC

2-channel 30W BTL Audio Power

Amplifier

No signal

t ≤ 0.2s, Giant pulse one-shot

Per channel

With a infinite heat sink

Conditions

40109 MS JK 20090313-S00003 No.5715-1/8

Ratings

s products or

-40 to +150

-35 to +85

3.0

Unit

°C

Related parts for LA4725_09

LA4725_09 Summary of contents

Page 1

Ordering number : EN5715A LA4725 Overview The LA4725 is a 2-channel BTL audio power amplifier IC for Car audio. It was designed for the best possible audio quality and features an extended low band roll-off frequency provided by a newly-developed ...

Page 2

Operating Conditions 25°C Parameter Recommended supply voltage V CC Allowable operating supply voltage Recommended load resistance R L Note : With and the output level in ranges such ...

Page 3

Block Diagram C2 100µF/25V + 2 RIPPLE FILTER − 2.2µF 25V PRE GND 3 BIAS CIRCUIT R1 ON 10KΩ STANDBY 4 OFF SW +5V IN2 2.2µF − 25V POP NOISE ...

Page 4

Pin Voltages 13.2V, with 5V applied to STBY through a 10kΩ resistor 4Ω Pin No Pin name IN1 DC Pin voltage 1.53V 5.65V Pin No +OUT2 −OUT2 ...

Page 5

Protection circuits • Due to the system structure of the protection circuit for shorts ground, if there resistance between the amplifier output pins and ground, the protection circuit may operate when power ...

Page 6

...

Page 7

SVRR -- V CC -20 -30 -40 -50 -60 -70 - SVRR -- -20 -40 -60 -80 -100 10k ...

Page 8

SANYO Semiconductor Co.,Ltd. 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 ...

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