LM1875TNOPB National Semiconductor, LM1875TNOPB Datasheet

LM1875TNOPB

Manufacturer Part Number

LM1875TNOPB

Description

TO-220

Manufacturer

National Semiconductor

Datasheet

1.LM1875TNOPB.pdf (11 pages)

Specifications of LM1875TNOPB

Date_code

07+

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LM1875

20W Audio Power Amplifier

General Description

The LM1875 is a monolithic power amplifier offering very low

distortion and high quality performance for consumer audio

applications.

The LM1875 delivers 20 watts into a 4Ω or 8Ω load on

supplies. Using an 8Ω load and

watts of power may be delivered. The amplifier is designed

to operate with a minimum of external components. Device

overload protection consists of both internal current limit and

thermal shutdown.

The LM1875 design takes advantage of advanced circuit

techniques and processing to achieve extremely low distor-

tion levels even at high output power levels. Other outstand-

ing features include high gain, fast slew rate and a wide

power bandwidth, large output voltage swing, high current

capability, and a very wide supply range. The amplifier is

internally compensated and stable for gains of 10 or greater.

Connection Diagram

For Straight Leads

For Stagger Bend

For 90˚ Stagger

Bend

For 90˚ Stagger

Bend

Package

Front View

Ordering Info

SL108949

LM1875T

LB03

LB05

LB02

30V supplies, over 30

DS005030

00503001

NSC Package

Number

TA05B

T05A

T05D

T05E

25V

Features

n Up to 30 watts output power

n A

n Low distortion: 0.015%, 1 kHz, 20 W

n Wide power bandwidth: 70 kHz

n Protection for AC and DC short circuits to ground

n Thermal protection with parole circuit

n High current capability: 4A

n Wide supply range 16V-60V

n Internal output protection diodes

n 94 dB ripple rejection

n Plastic power package TO-220

Applications

n High performance audio systems

n Bridge amplifiers

n Stereo phonographs

n Servo amplifiers

n Instrument systems

Typical Applications

typically 90 dB

www.national.com

July 2002

00503002

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