Datasheet > LA4743

LA4743

更新时间： 2024-10-28 22:47:19

品牌	Logo	应用领域
三洋 - SANYO		放大器功率放大器
页数	文件大小	规格书
9页	89K
描述
45 W Four-Channel (Bridge Circuit) Power Amplifier

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LA4743 数据手册

Ordering number : ENN6630

Monolithic Linear IC

LA4743B

45 W Four-Channel (Bridge Circuit) Power Amplifier

Overview

Package Dimensions

The LA4743B is a 45 W 4-channel power amplifier IC for

car stereo systems. It features a built-in bridge circuit and

the ability to radically reduce the number of external

components required. It is also pin compatible with the

LA4743A, which differs in the amount of gain provided.

unit: mm

3236-HZIP25

[LA4743B]

29.2

25.6

4.5

Features

R1.7

• Maximum output power: 45 W × 4 channels

(V = 14.4 V, 4 Ω load, 1 kHz)

• 40 W × 4 channels (V = 13.7 V, 4 Ω load, 1 kHz)

• Requires only seven external components and does not

require an oscillation prevention RC circuit, a noise

filter, or a BS capacitor.

0.4

4.0

2.60

(1.0)

2.0

4.0

0.53

2.0

Functions

• Muting function

• Built-in standby switch

SANYO: HZIP25

• Full complement of built-in protection circuits,

including protection from shorting to V , shorting to

ground, load shorting, overvoltages, and overheating.

Specifications

Maximum Ratings at Ta = 25°C

Parameter

Maximum supply voltage

Symbol

Conditions

Ratings

Unit

V_CCmax1 Signal present

V_CCmax2 No signal (for 1 minute)

I_Opeak

Maximum output current

Allowable power dissipation

Operating temperature

Storage temperature

4.5/ch

Pd max

Topr

Tstg

With an arbitrarily large heat sink

–40 to +85

–40 to +150

°C

°C/W

Package thermal resistance

θjc

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

O3100RM (OT) No. 6630-1/9

12 3 4 5 6 7...9

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与LA4743相关器件

型号	品牌	获取价格	描述	数据表
LA4743A	SANYO	获取价格	45 W Four-Channel (Bridge Circuit) Power Amplifier
LA4743B	SANYO	获取价格	45 W Four-Channel (Bridge Circuit) Power Amplifier
LA47501	SANYO	获取价格	BTL4ch(50W】4)
LA47503	SANYO	获取价格	High-Output (50-Watt Class) Four-Channel Car Stereo BTL Power Amplifier IC Series
LA47510	SANYO	获取价格	Monolithic Linear IC BTL (50W】4) Power IC for
LA47536	SANYO	获取价格	Four-Channel 45 W BTL Car Audio Power Amplifier
LA4800	SANYO	获取价格	3 V Stereo Headphone Power Amplifier
LA4800V	SANYO	获取价格	3 V Stereo Headphone Power Amplifier
LA4801	SANYO	获取价格	Headphone Stereo Power Amplifier
LA4801V	SANYO	获取价格	Headphone Stereo Power Amplifier

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