LM4865MM/NOPB ,750mW Audio Power Amplifier with DC Volume Control and Headphone Switch 8-VSSOP -40 to 85FEATURES DESCRIPTIONThe LM4865 is a mono bridged audio power amplifier2• DC Voltage Volume Controlw ..
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LM4865MM/NOPB
750 mW Audio Power Amplifier with DC Volume Control and Headphone Switch
LM4865
www.ti.com SNAS035G –DECEMBER 1999–REVISED MAY 2013
LM4865 750 mW Audio Power Amplifier with DC Volume
Control and Headphone Switch
Checkfor Samples: LM4865
1FEATURES DESCRIPTIONThe LM4865isa mono bridged audio power amplifier
DC Voltage Volume Control with DC voltage volume control. The LM4865is
• Headphone Amplifier Mode capableof delivering 750mWof continuous average
“Click and Pop” Suppression power into an 8Ω load with less than 1% THD when
powered bya 5V power supply. Switching between
• Shutdown Control When Volume Control PinIs bridged speaker mode and headphone (single ended)
Low modeis accomplished using the headphone sense
• Thermal Shutdown Protection pin. To conserve powerin portable applications, the
LM4865's micropower shutdown mode (IQ= 0.7µ A,
APPLICATIONS typ)is activated when less than 300mVis appliedto
the DC Vol/SD pin.
• GSM Phones and Accessories, DECT, Office
Phones Boomer audio power amplifiers are designed
specificallyto provide high power audio output while
• Hand Held Radiomaintaining high fidelity. They require few external
• Other Portable Audio Devices components and operateon low supply voltages.
KEY SPECIFICATION POat 1.0% THD+N Into 8Ω SOIC, Micro SMD
750 mW (typ) POat 10% THD+N Into 8Ω SOIC, Micro SMD 1W
(typ) Shutdown Current 0.7µ A(typ) Supply Voltage Range 2.7Vto 5.5V
CONNECTION DIAGRAMS (Top View) Figure2. Small Outline (SOIC) (Top
Mini Small Outline (VSSOP)
See PackageD,
