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參數資料
| 型號： | LA4743A |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 28 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| 封裝： | HZIP-25 |
| 文件頁數： | 1/9頁 |
| 文件大小： | 215K |
| 代理商： | LA4743A |
Ordering number : ENN6629
O3100RM (OT) No. 6629-1/9
Overview
The LA4743A 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
LA4743B, which differs in the amount of gain provided.
Features
Maximum output power: 45 W × 4 channels
(VCC = 14.4 V, 4 load, 1 kHz)
40 W × 4 channels (VCC = 13.7 V, 4 load, 1 kHz)
Requires only seven external components and does not
require an oscillation prevention RC circuit, a noise
filter, or a BS capacitor.
Functions
Muting function
Built-in standby switch
Full complement of built-in protection circuits,
including protection from shorting to VCC, shorting to
ground, load shorting, overvoltages, and overheating.
Package Dimensions
unit: mm
3236-HZIP25
2.0
29.2
2.60
(1.0)
25.6
0.53
R1.7
0.4
17.4
14.4
4.5
10.2
3.3
4.0
SANYO: HZIP25
[LA4743A]
LA4743A
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
45 W Four-Channel (Bridge Circuit) Power Amplifier
Monolithic Linear IC
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.
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max1
Signal present
18
V
VCC max2
No signal (for 1 minute)
26
V
Maximum output current
IOpeak
4.5/ch
A
Allowable power dissipation
Pd max
With an arbitrarily large heat sink
50
W
Operating temperature
Topr
–40 to +85
°C
Storage temperature
Tstg
–40 to +150
°C
Package thermal resistance
θjc
1
°C/W
Specifications
Maximum Ratings at Ta = 25C
相關PDF資料 |
PDF描述 |
|---|---|
| LA4743B | 28 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| LA47501 | 29 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| LA47503 | 29 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| LA47510 | 48 W, 2 CHANNEL, AUDIO AMPLIFIER, ZFM25 |
| LA47516 | 29 W, 4 CHANNEL, AUDIO AMPLIFIER, ZFM25 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LA4743B | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:45 W Four-Channel (Bridge Circuit) Power Amplifier |
| LA4743J | 制造商:Panasonic Industrial Company 功能描述:IC |
| LA4743K-E | 制造商:Sony Semiconductor Solutions Division 功能描述: |
| LA474M | 制造商:Cornell Dubilier Electronics 功能描述: 制造商:Mallory Sonalert Products Inc 功能描述: |
| LA47501 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:BTL4ch(50W】4) |
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