Name: LM386 Audio Amplifier IC (10pc)
SKU: EC-087
Price: 43.61 ZAR
Availability: SoldOut

LM386 Audio Amplifier IC (10pc)

New

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R43.61

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BotShop3166

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Condition

New

Location

South Africa

Product code

EC-087

Bob Shop ID

593184243

LM386 Audio Amplifier IC (10pc).

The integrated chip LM386 is a low-power audio frequency amplifier requiring a low-level power supply (most often batteries). It comes in an 8-pin mini-DIP package. The IC is designed to deliver a voltage amplification of 20 without external add-on parts. But this voltage gain can be raised up to 200 (Vu = 200) by adding external parts.

The IC is powered using pin 6 (typically 5 or 9V) and the ground pin 4 is connected to the ground. The inverting pin (pin 2) is normally grounded and the Non-inverting pin (pin 3) is provided with the Audio signal. This audio signal can be from a microphone or even from a 3.5mm jack. The 10k resistor is added in series with the audio signal to act as a volume control. You can ignore this potentiometer if you want to operate at full volume.

Pin 1 and pin 8 are used to set the gain of the Amplifier. If there is nothing connected between these pins then the default gain will be 26 dB, but we can connect a 10 uF capacitor across it to get the maximum gain of the IC which is 46 dB. Pin 7 is used to connect a filtering capacitor (0.1uf) for our amplifier IC to avoid unnecessary oscillations. The amplified audio signal can be obtained from pin 5 which is connected to an 8-ohm speaker through a filtering capacitor. The RC network with 0.05uF and 10k resistor is optional.

LM386 Audio Amplifier IC (10pc) Specification:

Parameter	Specification
Part number	LM386
Audio input type	Analog Input
Architecture	Class-AB
Speaker channels (Max)	Mono
Power stage supply (Min) (V)	4
Power stage supply (Max) (V)	18
Output power (W)	0.325
Load (Min)(ohms)	4
THD + N @ 1 kHz (%)	0.2
Iq (Typ) (mA)	4
Control interface	Hardware
Closed/open loop	Closed
Analog supply (Min) (V)	4
Analog supply (Max )(V)	18
PSRR (dB)	50
Operating temperature range (C)	0 to 70

LM386 Audio Amplifier IC (10pc) Features:

Battery Operation

Minimum External Parts

Wide Supply Voltage Range: 4 V—12 V or 5 V—18 V

Low Quiescent Current Drain: 4 mA

Voltage Gains from 20 to 200

Ground-Referenced Input

Self-Centering Output Quiescent Voltage

Low Distortion: 0.2% (A_V = 20, V_S = 6 V, R_L = 8 , P_O = 125 mW, f = 1 kHz)

Available in 8-Pin MSOP Package

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