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3718

Part Number	3718
Manufacturer	Allegro MicroSystems
Description	LOW-VOLTAGE AUDIO POWER AMPLIFIER
Published	Mar 30, 2005
Detailed Description	3718 LOW-VOLTAGE AUDIO POWER AMPLIFIER 3718 Data Sheet 27117.25 LOW-VOLTAGE AUDIO POWER AMPLIFIER ABSOLUTE MAXIMUM ...
Datasheet	3718 PDF File

Overview

3718 LOW-VOLTAGE AUDIO POWER AMPLIFIER 3718 Data Sheet 27117.
25 LOW-VOLTAGE AUDIO POWER AMPLIFIER ABSOLUTE MAXIMUM RATINGS Supply Voltage, VCC .
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10 V Package Power Dissipation, Operating Temperature Range, TA .
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T C U Y D L O N R O P E D C E N U E N ER I T N EF O R C R S I O D F — The amplifier will operate (at reduced volume) with supply voltages as low as 1.
8 V without a significant increase in distortion.
This feature allows operation with a 3 V battery supply and minimizes concern about weak batteries.
The class-AB audio amplifier has low quiescent current drain for maximum battery life.
This device is rated for operation with supply voltages up to 9 V.
The ULN3718M audio amplifier is supplied in an 8-pin mini-DIP plastic package.
A copper alloy lead frame gives the amplifier enhanced power dissipation ratings.
Providing a low-cost, compact alternative to discrete transistor amplifiers, the ULN3718M integrated circuit is ideal for application as a headphone driver in portable radios, tape players, and other battery-operated equipment.
The low-power audio amplifier’s wide frequency response and low noise ensure premium performance.
FEATURES s s s s s s s Wide Operating Voltage Range 1.
8 - 9.
0 V Low Quiescent Current AC Short-Circuit Protection Low External Parts Count Low Distortion 40 dB Voltage Gain Low Noise PD .
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See Graph -20°C to +85°C -65°C to +150°C Storage Temperature Range, TS .
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Always order by complete part number: ULN3718M .
3718 LOW-VOLTAGE AUDIO POWER AMPLIFIER ELECTRICAL CHARACTERISTICS at TA = +25°C, VCC = 3 V, RL = 32Ω, fin = 400 Hz (unless otherwise noted).
Characteristic Supply Voltage Range Quiescent Supply Current Symbol VCC ICC VCC = 3.
0 V VCC = 6.
0 V VCC = 9.
0 V Voltage Gain Audio Power Output AV POUT RL = 8Ω, VCC = 3.
0 V, THD = 10% RL = 8Ω, VCC = 6.
0 V, THD = 10% RL = 32Ω, VCC = 3.
0 V, THD = 10% RL = 32Ω...

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