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TPA701D-TPA701DGN-TPA701DGNR-TPA701DR
700-mW Low-Voltage Audio Power Amp
DD– 250 mW at VDD = 3.3 V, BTL Ultralow Quiescent Current in Shutdown
Mode... 1.5 nA Thermal and Short-Circuit Protection Surface-Mount Packaging
– SOIC
– PowerPAD MSOP
descriptionThe TPA701 is a bridge-tied load (BTL) audio power amplifier developed especially for low-voltage applications
where internal speakers are required. Operating with a 3.3-V supply, the TPA701 can deliver 250-mW of
continuous power into a BTL 8-Ω load at less than 0.6% THD+N throughout voice band frequencies. Although
this device is characterized out to 20 kHz, its operation was optimized for narrower band applications such as
wireless communications. The BTL configuration eliminates the need for external coupling capacitors on the
output in most applications, which is particularly important for small battery-powered equipment. This device
features a shutdown mode for power-sensitive applications with a supply current of 1.5 nA during shutdown.
The TPA701 is available in an 8-pin SOIC surface-mount package and the surface-mount PowerPAD MSOP,
which reduces board space by 50% and height by 40%.
Audio
Input
VDD
From System ControlPlease be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
IN+
IN–
VDD
VO+
