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TPA0211DGN-TPA0211DGNG4-TPA0211DGNR
2-W Mono Audio Power Amp
TPA0211
Bypass
Audio Input
Vo+
Vo-
SE/BTL
VDD
To power supply RI
Product
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TPA0211SLOS275E –JANUARY 2000–REVISED NOVEMBER 2016
TPA0211 2-W Mono Audio Power Amplifier Features 2W Into4Ω From 5-V Supply 0.6W Into4Ω From 3-V Supply Wide Power Supply Compatibility:3Vto5V Low Supply Current: 4 mA Typicalat5V 4 mA Typicalat3V Shutdown Control:1 µA Typical Shutdown PinIs TTL Compatible –40°Cto 85°C Operating Temperature Range Space-Saving, Thermally-Enhanced MSOP-
PowerPAD™ Packaging
Applications Wireless Communictors Notebook PCs PDAs Other Small Portable Audio Devices
DescriptionThe TPA0211isa 2-W mono bridge-tied-load (BTL)
amplifier designedto drive speakers with as low as
4-Ω impedance. The deviceis ideal for small wireless
communicators, notebook PCs, PDAs, anyplacea
mono speaker and stereo headphones are required.
Froma 5-V supply, the TPA0211 can deliver2Wof
power intoa 4-Ω speaker.
The gainof the input stageis setby the user-selected
input resistor anda 50-kΩ internal feedback resistor
(AV= –RF/ RI). The power stage is internally
configured witha gainof –1.25 V/Vin SE mode, and
–2.5 V/Vin BTL mode. Thus, the overall gainof the
amplifieris –62.5 kΩ/RIin SE mode and –125 kΩ/RI BTL mode. The input terminals are high-impedance
CMOS inputs, and canbe usedas summing nodes.
The TPA0211is availablein the 8-pin thermally-
enhanced MSOP-PowerPAD package (DGN) and
operates over an ambient temperature range of
–40°Cto 85°C.
Device Information(1)(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Simplified Application Schematic
