TPA741 - Texas Instruments

TPA741 700-mW MONO LOW-VOLTAGE AUDIO POWER

The TPA741 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 TPA741 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.

Features

• Fully Specified for 3.3-V and 5-V Operation
• Wide Power Supply Compatibility 2.5 V - 5.5 V
• Output Power for RL = 8 Ω
  – 700 mW at VDD = 5 V
  – 250 mW at VDD = 3.3 V
• Integrated Depop Circuitry
• Thermal and Short-Circuit Protection
• Surface-Mount Packaging
  – SOIC
  – PowerPAD™ MSOP D OR DGN PACKAGE (TOP VIEW) SHUTDOWN 1 8 VO
  – BYPASS 2 7 GND IN+ 3 6 VDD IN
  – 4 5 VO+ DESCRIPTION The TPA741 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 TPA741 can deliver 2.