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LM1875T 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 4 or 8 load on ±25V supplies. Using an 8 load and ±30V supplies, over 30 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 distortion levels even at high output power levels. Other outstanding 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.

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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 4 or 8 load on ±25V supplies. Using an 8 load and ±30V supplies, over 30 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 distortion levels even at high output power levels. Other outstanding 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.

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Title

20-W Audio Power Amplifier

ECAD Module
Unity Gain Bandwidth Product (Typ): 5.5(MHz)
Package / Case: TO220-5
Input Offset Voltage: 15(mV)
Mounting: Through Hole
Operational Class: Class-AB
Output Power (Typ): 25x1(W)
Package Type: TO-220
Packaging: Rail/Tube
Pin Count: 5 +Tab
Audio Amplifier Function: Speaker
Power Supply Rejection Ratio: 95(dB)
Total Harmonic Distortion: 0.015
Power Supply Requirement: Single/Dual
Audio Amplifier Output Configuration: 1-Channel Mono
Supply Current: 100(mA)
Dual Supply Voltage (Min): ±8(V)
Rail/Rail I/O Type: No
Rad Hardened: No
Single Supply Voltage (Min): 16(V)
Single Supply Voltage (Max): 60(V)
Single Supply Voltage (Typ): 18/24/28(V)
Dual Supply Voltage (Max): ±30(V)
Operating Temperature Classification: Commercial

All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.

ECAD Module

Product Attributes

Description: The LM1875T is a monolithic power amplifier designed to deliver 20W into an 8Ω load with 0.1% THD+N from 20Hz to 20kHz. Features: 20W Output Power into 8Ω Load 0.1% THD+N from 20Hz to 20kHz Low Quiescent Current Short Circuit Protection Thermal Overload Protection Low External Component Count High Efficiency Low Noise Low Distortion High Slew Rate Applications: Home Audio Systems Car Audio Systems Professional Audio Systems Portable Audio Systems Musical Instruments (For reference only)

Introduce this Module:

he LM1875T is a monolithic power amplifier offering very low distortion and high-quality performance for consumer audio applications.

The LM1875T delivers 20watts into a 4Ω or 8Ω load on ±25Volt supplies. Using an 8Ω load and ±30Volt supplies, over 30 watts of power may be delivered. The amplifier is design to operate with a minimum of external components. Device overload protection consists of both internal current Very limit and thermal shutdown.

Some Core Parameters:

SPECIAL FEATURES :

● Up to 30Watts Output Power

● AVO Typically 90dB

● Low Distortion: 0.015%, 1kHz, 20Watt

● Wide Power Bandwidth: 70kHz

● Protection for AC and DC Short Circuits to GND.

● Thermal Protection with Parole Circuit

● High Current Capability: 4A

● Wide Supply Range 16V-60V

● Internal Output Protection Diodes

● 94dB Ripple Rejection

● Plastic Power Package TO-220

How it Uses in the work:

Internal Circuit Diagram:

MyFang/202007/31/f_d3d1a0f471464deb8690fd9a50d153cb.png

LM1875T Pinout Connections:

MyFang/202007/31/f_c7457c15a0934f578dc742c6c2d4b291.png

LM1875T Pin Functions:

● Pin 1 Non – Inverting Input: Non-inverting end (+) of Amplifier.

● Pin 2 Inverting Input: Inverting end (-) of Amplifier

● Pin 3 Vee: Negative supply voltage or ground

● Pin 4 Output: This pin outputs the amplified signal

● Pin 5 Vss: Positive supply voltage

Absolute maximum ratings:

● Supply Voltage: 60V

● Input Voltage: - Vee to Vcc

● Storage Temperature: - 65℃ to + 150℃

● Junction Temperature: 150℃

Applications:

● High-Performance Audio Systems

● Bridge Amplifiers

● Stereo Phonographs

● Servo Amplifiers

● Instrument Systems

Preview of the first 3 pages of the data sheet

Document Preview

FEATURES

to 30 Watts Output Power AVO Typically 90 dB Low Distortion: 0.015%, 1 kHz, 20 W Wide Power Bandwidth: 70 kHz Protection for AC and DC Short Circuits to

Ground Thermal Protection with Parole Circuit High Current Capability: 4A Wide Supply Range 16V-60V Internal Output Protection Diodes 94 dB Ripple Rejection Plastic Power Package TO-220

APPLICATIONS

High Performance Audio Systems Bridge Amplifiers Stereo Phonographs Servo Amplifiers Instrument Systems

DESCRIPTION

The is a monolithic power amplifier offering very low distortion and high quality performance for consumer audio applications.

The LM1875 delivers 20 watts into or 8 load on ±25V supplies. Using an 8 load and ±30V supplies, over 30 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 distortion levels even at high output power levels. Other outstanding 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 10 or greater.

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. All 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.

Typical Applications

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.

(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.

VCC, 1 kHz, 1 Vrms VEE, 1 kHz, 1 Vrms 8, 70 kHz BW
Current Limit Equivalent Input Noise Voltage

(1) Assumes the use of a heat sink having a thermal resistance of 1°C/W and no insulator with an ambient temperature of 25°C. Because the output limiting circuitry has a negative temperature coefficient, the maximum output power delivered a 4 load may be slightly reduced when the tab temperature exceeds 55°C.

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Product Reviews

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10000 buyer reviews from United States

William Davis

LM1875T/NOPB

United States

Length of registration:7 years

The LM1875T/NOPB integrated circuit is a great choice for audio amplification. It is easy to use and provides excellent sound quality. The circuit is also very reliable and has a low noise floor. I've used it in several projects and have been very pleased with the results. Highly recommended!

Reply0

03/17/2023

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LM1875T 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 4 or 8 load on ±25V supplies. Using an 8 load and ±30V supplies, over 30 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 distortion levels even at high output power levels. Other outstanding 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.

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Alternate Names

LM1875T

LM1875T has several brands around the world that may have alternate names for LM1875T due to regional differences or acquisition. LM1875T may also be known as the following names: