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LA4919N

Sanyo Semicon Device
Part Number LA4919N
Manufacturer Sanyo Semicon Device
Description Monolithic Linear IC Two-Channel 10W BTL High-Efficiency TV Audio Output Power Amplifier
Published Mar 20, 2010
Detailed Description Ordering number : ENA0323 www.DataSheet4U.com Monolithic Linear IC LA4919N Overview Two-Channel 10W BTL High-Efficie...
Datasheet PDF File LA4919N PDF File

LA4919N
LA4919N

Overview
Ordering number : ENA0323 www.
DataSheet4U.
com Monolithic Linear IC LA4919N Overview Two-Channel 10W BTL High-Efficiency TV Audio Output Power Amplifier The LA4919N is a 2-channel 10W BTL high-efficiency power amplifier.
By using a signal following switching system for the power supply to the amplifier output stage and by including a nonlinear amplifier in the signal system, the LA4919N holds the number of external components to a minimum and reduces the power consumption (thermal loss) in the operating range to one half that of earlier class B power amplifiers.
The use of a DIP-28H package obviates the need for a separate heat sink and can contribute to internal space savings in end products.
Features • High-efficiency 2-channel × 10W BTL power amplifier (VCC = 15V, RL = 8Ω) • Provided in a DIP-28H package (no heat sink is required) • The number of required signal-following switching circuits has been held to a single circuit, thus reducing even further the number of external components required.
• The output is a fully analog signal, and no switching noise appears on the output lines.
• Built-in standby switch (amplifier block/headphone block) • Built-in headphone amplifier : 2 inputs/2 outputs (VG = 6dB, PO = 60mW) • Built-in protection circuits (overvoltage and thermal protection circuits) Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Allowable power dissipation Thermal resistance Maximum junction temperature Operating temperature Storage temperature Symbol VCC max Pd max θj-c Tj max Topr Tstg No signal With a infinity large heat sink Conditions Ratings 24 15 3 150 -25 to +75 -40 to +150 Unit V W °C/W °C °C °C Any and all SANYO Semiconductor products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious ...


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