LM4766T Datasheet

IC型號：
LM4766T
PDF描述：
National Semiconductor [Audio Power Amplifier Series Dual 4...
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LM4766 Overture

鈩?/div>

Audio Power Amplifier Series

Dual 40W Audio Power Amplifier with Mute

September 1998

LM4766

Overture

鈩?/div>

Audio Power Amplifier Series Dual 40W Audio Power

Amplifier with Mute

General Description

The LM4766 is a stereo audio amplifier capable of delivering

typically 40W per channel of continuous average output

power into an 8鈩?load with less than 0.1% (THD + N).

The performance of the LM4766, utilizing its Self Peak In-

stantaneous Temperature (藲Ke) (SPiKe

鈩?/div>

) Protection Cir-

cuitry, places it in a class above discrete and hybrid amplifi-

ers by providing an inherently, dynamically protected Safe

Operating Area (SOA).

SPiKe

Protection means that these

parts are safeguarded at the output against overvoltage, un-

dervoltage, overloads, including thermal runaway and in-

stantaneous temperature peaks.

Each amplifier within the LM4766 has an independent

smooth transition fade-in/out mute that minimizes output

pops. The IC鈥檚 extremely low noise floor at 2 碌V and its ex-

tremely low THD + N value of 0.06% at the rated power

make the LM4766 optimum for high-end stereo TVs or mini-

component systems.

Key Specifications

THD+N at 1 kHz at 2 x 30W continuous average

output power into 8鈩?

THD+N at 1 kHz at continuous average

output power of 2 x 30W into 8鈩?

0.009% (typ)

0.1% (max)

Features

SPiKe Protection

Minimal amount of external components necessary

Quiet fade-in/out mute mode

Non-Isolated 15-lead TO-220 package

Applications

High-end stereo TVs

Component stereo

Compact stereo

Typical Application

Connection Diagram

Plastic Package

DS100928-2

Top View

Non-Isolated Package

Order Number LM4766T

See NS Package Number TA15A

DS100928-1

FIGURE 1. Typical Audio Amplifier Application Circuit

Note:

Numbers in parentheses represent pinout for amplifier B.

Optional component dependent upon specific design requirements.

SPiKe

鈩?/div>

Protection and

Overture

鈩?/div>

are trademarks of National Semiconductor Corporation.

漏 1999 National Semiconductor Corporation

DS100928

www.national.com

制造商
National Semiconductor (TI)
產(chǎn)品
Class-AB
輸出功率
40 W x 2 at 8 Ohms
輸出類型
2-Channel Stereo
可用增益調(diào)整
115 dB
共模抑制比（最小值）
75 dB
THD + 噪聲
0.06 %
工作電源電壓
18 V
最大功率耗散
62500 mW
最大工作溫度
+ 85 C
安裝風(fēng)格
Through Hole
封裝 / 箱體
TO-220
封裝
Tube
音頻負(fù)載電阻
8 Ohms
雙重電源電壓
+/- 12 V, +/- 15 V, +/- 18 V, +/- 24 V, +/- 28 V
輸入補(bǔ)償電壓
10 mV at +/- 30 V
輸入信號類型
Differential
最小工作溫度
- 20 C
輸出信號類型
Single
電源類型
Single, Dual
Supply Voltage - Max
60 V
Supply Voltage - Min
20 V

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