LM1876

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SNAS097C –MAY 1999–REVISED APRIL 2013

LM1876 Overture™ Audio Power Amplifier Series

Dual 20W Audio Power Amplifier with Mute and Standby Modes

Check for Samples: LM1876

FEATURES

DESCRIPTION

The LM1876 is a stereo audio amplifier capable of

• SPiKe Protection

delivering typically 20W per channel of continuous

• Minimal Amount of External Components

average output power into a 4Ω or 8Ω load with less

Necessary

than 0.1% THD+N.

• Quiet Fade-In/Out Mute Mode

Each amplifier has an independent smooth transition

• Standby-Mode

fade-in/out mute and a power conserving standby

mode which can be controlled by external logic.

• Isolated 15-Lead TO-220 Package (PFM)

• Non-Isolated 15-lead TO-220 Package

The performance of the LM1876, utilizing its Self

Peak Instantaneous Temperature (°Ke) ( SPiKe™)

• Wide Supply Range 20V - 64V

protection circuitry, places it in a class above discrete

and hybrid amplifiers by providing an inherently,

APPLICATIONS

dynamically protected Safe Operating Area (SOA).

• High-End Stereo TVs

SPiKe protection means that these parts are

safeguarded at the output against overvoltage,

• Component Stereo

undervoltage, overloads, including thermal runaway

• Compact Stereo

and instantaneous temperature peaks.

KEY SPECIFICATIONS

• THD+N at 1kHz at 2 x 15W continuous

averageoutput power into 4Ω or 8Ω: 0.1%

(max)

• THD+N at 1kHz at continuous average output

power of 2 x 20W into 8Ω: 0.009% (typ)

• Standby current: 4.2mA (typ)

Connection Diagram

Figure 1. Plastic Package- Top View

Isolated Package (PFM)

See Package Number NDB0015B

Non-Isolated Package

See Package Number NDL0015A

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2Overture, SPiKe are trademarks of dcl_owner.

3All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

LM1876

SNAS097C –MAY 1999–REVISED APRIL 2013

www.ti.com

Typical Application

Numbers in parentheses represent pinout for amplifier B.

*Optional component dependent upon specific design requirements.

Figure 2. Typical Audio Amplifier Application Circuit

Product Folder Links: LM1876

LM1876

www.ti.com

SNAS097C –MAY 1999–REVISED APRIL 2013

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

Absolute Maximum Ratings

(1)(2)(3)

Supply Voltage |V

| + |V

| (No Input) 64V

Supply Voltage |V

| + |V

| (with Input) 64V

Common Mode Input Voltage (V

or V

) and

| + |V

| ≤ 54V

Differential Input Voltage 54V

Output Current Internally Limited

Power Dissipation

(4)

62.5W

ESD Susceptability

(5)

2000V

Junction Temperature

(6)

150°C

Thermal Resistance Isolated NDB-Package θ

2°C/W

Non-Isolated NDL-Package θ

1°C/W

Soldering Information NDB Package (10 sec.) 260°C

Storage Temperature −40°C to +150°C

(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for

which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical

specifications under particular test conditions which specify performance limits. This assumes that the device is within the Operating

Ratings. Specifications are not ensure for parameters where no limit is given, however, the typical value is a good indication of device

performance.

(2) All voltages are measured with respect to the GND pins (5, 10), unless otherwise specified.

(3) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and

specifications.

(4) For operating at case temperatures above 25°C, the device must be derated based on a 150°C maximum junction temperature and a

thermal resistance of θ

= 2°C/W (junction to case) for the NDB package and θ

= 1°C/W for the NDL package. Refer to

DETERMINING THE CORRECT HEAT SINK in Application Information.

(5) Human body model, 100 pF discharged through a 1.5 kΩ resistor.

(6) The operating junction temperature maximum is 150°C, however, the instantaneous Safe Operating Area temperature is 250°C.

Operating Ratings

(1)(2)

Temperature Range T

MIN

≤ T

MAX

−20°C ≤ T

≤ +85°C

Supply Voltage |V

| + |V

(3)

20V to 64V

(1) All voltages are measured with respect to the GND pins (5, 10), unless otherwise specified.

(2) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for

which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical

specifications under particular test conditions which specify performance limits. This assumes that the device is within the Operating

Ratings. Specifications are not ensure for parameters where no limit is given, however, the typical value is a good indication of device

performance.

(3) Operation is specified up to 64V, however, distortion may be introduced from SPiKe Protection Circuitry if proper thermal considerations

are not taken into account. Refer to Application Information for a complete explanation.

Product Folder Links: LM1876

Part #	LM1876TF
Description	IC AMP AUDIO PWR 22W AB TO220-15
Category	IC
Availability	In Stock
Qty	5

LM1876TF

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