TPA311 Datasheet (Texas Instruments) - 350-mW MONO AUDIO POWER AMPLIFIER

TPA311, 350-mW MONO AUDIO POWER AMPLIFIER

D OR DGN PACKAGE (TOP VIEW) The TPA311 is a bridge-tied load (BTL) or single-ended (SE) audio power amplifier developed especially for low-voltage applications where internal speakers and external earphone operation are required.

Operating with a 3.3-V SHUTDOWN 1 8 VO * BYPASS 2 7 GND SE/B

TPA311 350-mW MONO AUDIO POWER AMPLIFIER SLOS207C JANUARY 1998 REVISED MAY 2003 D Fully Specified for 3.3-V and 5-V Operation D Wide Power Supply Compatibility 2.5 V 5.5 V D Output Power for RL = 8 Ω 350 mW at VDD = 5 V, BTL 250 mW at VDD = 5 V, SE 250 mW at VDD = 3.3 V, BTL 75 mW at VDD = 3.3 V, SE D Shutdown Control IDD = 7 µA at 3.3 V IDD = 60 µA at 5 V D BTL to SE Mode Control D Integrated Depop Circ

TPA311 Features

* a shutdown mode for power-sensitive applications with special depop circuitry to virtually eliminate speaker noise when exiting shutdown mode and during power cycling. The TPA311 is available in an 8-pin SOIC surface-mount package and the surface-mount PowerPAD MSOP, which reduces board space by