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参数资料
| 型号： | LA4728 |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 35 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM14 |
| 封装： | SIP-14 |
| 文件页数： | 1/3页 |
| 文件大小： | 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] (VCC=14.4 V, THD=30 %, RL=4 )
Less pop noise.
Designed for excellent sound quality.
(fL<10 Hz, fH=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-VCC 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
VCC max
18
V
Surge supply voltage
VCC surge f ≤ 0.2 s, single giant pulse
50
V
Maximum output current
IO peak
Per channel
3.5
A
Allowable power disspation
Pd max
With arbitrarily large heat sink
32
W
Operating temperature
Topr
–35 to +85
C
Storage temperature
Tstg
–40 to +150
C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
13.2
V
Operating voltage range
VCC op
Range where Pd max is not exceeded
9 to 16
V
Recommended load resistance
RL op
4
32497RM(KOTO) No.5716-1/3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LA4735 | 制造商:未知厂家 制造商全称:未知厂家 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 制造商全称: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:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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