3718 Datasheet, PDF (1/6 Pages) Allegro MicroSystems – LOW-VOLTAGE AUDIO POWER AMPLIFIER

3718 ³⁷¹⁸
LOW-VOLTAGE AUDIO POWER AMPLIFIER
LOW-VOLTAGE
AUDIO POWER AMPLIFIER
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
T _{frequency response and low noise ensure premium performance.}
C _{The amplifier will operate (at reduced volume) with supply voltages}
as low as 1.8 V without a significant increase in distortion. This feature
U _{allows operation with a 3 V battery supply and minimizes concern}
Y _{about weak batteries. The class-AB audio amplifier has low quiescent}
D _{L current drain for maximum battery life. This device is rated for opera-}
tion with supply voltages up to 9 V.
O _{N The ULN3718M audio amplifier is supplied in an 8-pin mini-DIP}
R _{O plastic package. A copper alloy lead frame gives the amplifier en-}
P _{hanced power dissipation ratings.}
ED _{NCE FEATURES}
U _{E s Wide Operating Voltage Range 1.8 - 9.0 V}
IN ^{R s Low Quiescent Current}
s AC Short-Circuit Protection
T ^E _{s Low External Parts Count}
F _{s Low Distortion}
N _{Es 40 dB Voltage Gain}
O _{s Low Noise}
ISC ^{R R} _{ABSOLUTE MAXIMUM RATINGS}
D _{FO Supply Voltage, VCC . . . . . . . . . . . . . . 10 V}
— ^{Package Power Dissipation,}
P_D . . . . . . . . . . . . . . . . . . . . See Graph
Operating Temperature Range,
T_A . . . . . . . . . . . . . . . . -20°C to +85°C
Storage Temperature Range,
T_S . . . . . . . . . . . . . . . -65°C to +150°C
Always order by complete part number: ULN3718M .