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參數(shù)資料
| 型號： | LA4728 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | 2-Channel BTL Power Amplifier (35W+35W) with Standby Switch for Car Stereos(用于汽車立體聲雙BTL功率放大器（35W+35W，帶備用開關(guān)）) |
| 中文描述： | 2通道橋接功率放大器（35W的具有待機(jī)為35W的汽車音響開關(guān)（用于汽車立體聲雙橋接功率放大器（35W的35W的，帶備用開關(guān)））） |
| 文件頁數(shù)： | 1/3頁 |
| 文件大?。?/td> | 44K |
| 代理商： | LA4728 |
LA4728
Ordering number : EN
*
5716
2-Channel BTL Power Amplifier (35 W+35 W)
with Standby Switch for Car Stereos
Preliminary
Monolithic Linear IC
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
Overview
The LA4728 is a BTL two-channel power IC for car
audios developed in pursuit of excellent sound quality.
Low-region frequency characteristics have been improved
through the use of a new NF capacitorless circuit, and
crosstalk which causes “muddy” sound has been reduced
by improving both circuit and pattern layout. As a result
the LA4728 provides powerful bass and clear treble.
Features
High power: supports total output of 35 W+35 W. [EIAJ
power] (V
CC
=14.4 V, THD=30 %, R
L
=4
)
Less pop noise.
Designed for excellent sound quality.
(f
L
<10 Hz, f
H
=130 kHz)
Any rise time settable by an external capacitor.
Standby switch circuit on chip. (microcontroller support-
ed)
Various protectors on chip.
(output-to-ground short/ output-to-V
CC
short/ load
short/ overvoltage/ thermal shutdown circuit)
The LA4728 is pin-compatible with the LA4725.
Specifications
Maximum Ratings
at Ta = 25 C
Recommended Conditions
at Ta = 25 C
Package Dimensions
unit: mm
3113A-SIP14HZ
[LA4728]
SANYO: SIP14HZ
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
V
CC
max
V
CC
surge f
≤
0.2 s, single giant pulse
I
O
peak
Per channel
Pd max
With arbitrarily large heat sink
18
V
Surge supply voltage
50
V
Maximum output current
3.5
A
Allowable power disspation
32
W
Operating temperature
Topr
–35 to +85
C
Storage temperature
Tstg
–40 to +150
C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
V
CC
V
CC
op
R
L
op
13.2
V
Operating voltage range
Range where Pd max is not exceeded
9 to 16
V
Recommended load resistance
4
32497RM(KOTO) No.5716-1/3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LA4741 | 42W 4-Channel BTL Power Amplifier for Car Stereo(用于汽車立體聲四BTL功率放大器（42W× 4）) |
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| LA4743A | 45 W Four-Channel (Bridge Circuit) Power Amplifier |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LA4735 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LA473M | 制造商:Cornell Dubilier Electronics 功能描述: 制造商:Mallory Sonalert Products Inc 功能描述: |
| LA4741 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:42W 4-Channel BTL Power Amplifier for Car Stereos |
| LA4742 | 制造商:Sanyo Fisher 功能描述:Power Amp 4-Ch (45W X 4) Sanyo IC 25-Pin Zip-Hs |
| LA4742-E | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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