LM386N-1/NOPB

Name: LM386N-1/NOPB
Brand: Texas Instruments
Rating: 4.5 (10 reviews)
Author: Lisleapex

LM386N-1/NOPB amplifier provides clear and powerful sound output

6,385 Effective Inventory

LM386N-1/NOPB

Effective Inventory6,385

LM386N-1/NOPB amplifier provides clear and powerful sound output

Manufacturer Part # : LM386N-1/NOPB
Package/Case: PDIP (P)-8
Brand: Texas Instruments
Product Categories : Audio Amplifiers
Series : LM386

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LM386N-1/NOPB DataSheet

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LM386N-1/NOPB Details

The LM386N-1/NOPB is a low-voltage audio power amplifier from Texas Instruments, designed for battery-powered applications. This device features a wide supply voltage range, low quiescent current drain, and high voltage gains, making it suitable for small battery-powered projects.

Pinout

1 (VCC): Positive Power Supply
2 (GND): Ground
3 (IN): Input Signal
4 (OUT): Output Signal
5 (VCC): Positive Power Supply

(Tip: For detailed pinout information, please refer to the corresponding datasheet.)

Key Features

Battery Operation: Designed for battery-powered applications with a wide supply voltage range.
Minimum External Parts: Requires minimal external components, making it easy to use and integrate into projects.
Wide Supply Voltage Range: Operates over a wide supply voltage range of 4 V–12 V or 5 V–18 V.
Low Quiescent Current Drain: Features low quiescent current drain of 4 mA, making it suitable for battery-powered applications.
Voltage Gains from 20 to 200: Offers high voltage gains from 20 to 200, allowing for efficient amplification of audio signals.

Applications

The LM386N-1/NOPB is suitable for small battery-powered projects that require a low-voltage audio power amplifier. This device can be used in applications such as:

Audio amplifiers for small speakers or headphones
Portable music players or radios
Amplifiers for hearing aids or other medical devices

Where to Use

The LM386N-1/NOPB is designed for use in small battery-powered applications where a low-voltage audio power amplifier is required. This device can be used in:

Battery-powered devices such as radios, speakers, or headphones
Portable medical devices such as hearing aids or pacemakers
Small-scale audio amplification applications

How to Use

To use the LM386N-1/NOPB, connect the input signal to pin 3 (IN), and the output signal to pin 4 (OUT). Ensure proper power supply connections to VCC and GND. For detailed usage instructions, refer to the datasheet.

Application Circuit

The application circuit diagram for the LM386N-1/NOPB illustrates how to connect the amplifier to a small speaker or headphones. It includes connections for power supply, input signal, and output signal, ensuring proper operation and efficient amplification.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

LM386: A similar low-voltage audio power amplifier from Texas Instruments offering comparable features and performance.

Complementary

The LM386N-1/NOPB can be complemented by other amplifiers or components that offer additional features such as higher voltage gains, wider supply voltage ranges, or improved noise rejection. When selecting complementary components, ensure that their features and specifications align with your specific application requirements for optimal performance and compatibility.

Frequently Asked Questions

Q: What is the maximum supply voltage range of the LM386N-1/NOPB?

A: The LM386N-1/NOPB operates over a wide supply voltage range of 4 V–12 V or 5 V–18 V. For more details, refer to the datasheet for specific operating conditions and limitations.

Q: Can the LM386N-1/NOPB be used in medical applications?

A: Yes, the LM386N-1/NOPB is suitable for use in medical applications such as hearing aids or pacemakers. This device features low quiescent current drain and high voltage gains, making it suitable for small battery-powered devices.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Audio input type	Analog Input	Architecture	Class-AB
Speaker channels (max)	Mono	Rating	Catalog
Power stage supply (max) (V)	18	Power stage supply (min) (V)	4
Load (min) (Ω)	4	Output power (W)	0.325
THD + N at 1 kHz (%)	0.2	Iq (typ) (mA)	4
Control interface	Hardware	Closed/open loop	Closed
Analog supply (min) (V)	4	Analog supply voltage (max) (V)	18
PSRR (dB)	50	Operating temperature range (°C)	0 to 70

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification LM386N-1/NOPB PDF Download

FAQs

What is LM386N-1/NOPB?

The LM386N-1/NOPB is a low-voltage audio power amplifier integrated circuit (IC) manufactured by Texas Instruments. It is specifically designed for use in low power audio applications such as portable devices, intercoms, and small audio amplifiers.

How Does LM386N-1/NOPB Work?

The LM386N-1/NOPB functions as a Class AB audio amplifier with a voltage gain of 20 to 200. It amplifies audio signals from input sources such as microphones or line-level devices to drive small speakers or headphones. The IC includes internal gain setting resistors for simplicity and ease of use.

How Many Pins does LM386N-1/NOPB have and What are the Functions of the Pinout Configuration?

The LM386N-1/NOPB is housed in an 8-pin PDIP (Plastic Dual In-Line Package) or SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:

IN-: Signal input pin.
IN+: Non-inverting input pin.
VS-: Negative voltage supply pin.
VS+: Positive voltage supply pin.
GND: Ground pin.
VOUT: Amplified output pin.
BYPASS: Bypass pin for internal gain setting.
GAIN: Gain control pin.

What are the Pros and Cons of LM386N-1/NOPB?

Pros:

Low Voltage Operation: Can operate on low supply voltage, suitable for battery-powered devices.
Simple Design: Internal gain setting resistors simplify circuit design.
Inexpensive: Cost-effective solution for audio amplification needs.
Wide Application Range: Suitable for various low-power audio amplification applications.

Cons:

Limited Output Power: Not suitable for high-power audio applications.
Potential Noise: May exhibit noise or distortion at higher gain settings.
External Components: Additional components like capacitors may be needed for optimal performance.

Are There Any Equivalents/Alternatives to LM386N-1/NOPB for Recommendation?

The NJM386D from NJR Corporation is a functional equivalent to the LM386N-1/NOPB.
Alternatives to the LM386N-1/NOPB include the TDA2822M from STMicroelectronics and the TDA7052A from NXP Semiconductors.