TPA721
FEATURES
- Fully Specified for 3.3-V and 5-V Operation
- Wide Power Supply patibility 2.5 V
- 5.5 V
- Output Power for RL = 8 Ω
- 700 m W at VDD = 5 V, BTL
- 250 m W at VDD = 3.3 V, BTL
- Integrated Depop Circuitry
- Thermal and Short-Circuit Protection
- Surface-Mount Packaging
- SOIC
- Power PAD™ MSOP
D OR DGN PACKAGE (TOP VIEW)
SHUTDOWN 1
VO-
BYPASS 2
IN+ 3
IN- 4
VO+
DESCRIPTION
The TPA721 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 TPA721 can deliver 250-m W 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 k Hz, its operation is optimized for narrower band applications such as wireless munications. The BTL configuration eliminates the need for external coupling capacitors on the output in most applications, which is particularly...
