TPA4411 - Texas Instruments

TPA4411 STEREO HEADPHONE DRIVER

The TPA4411 and TPA4411M are stereo headphone drivers designed to allow the removal of the output DC-blocking capacitors for reduced component count and cost. The TPA4411 and TPA4411M are ideal for small portable electronics where size and cost are critical design parameters. The TPA4411 and TPA4411M are capable of driving 80 mW into a 16-Ω load at 4.5 V. Bo.

Features

1
•2 Space Saving Packages
  – 20-Pin, 4 mm × 4 mm Thin QFN
  – TPA4411
  – Thermally Optimized PowerPAD™ Package
  – TPA4411M
  – Thermally Enhanced PowerPAD™ Package
  – 16-Ball, 2.18 mm × 2.18 mm WCSP
• Ground-Referenced Outputs Eliminate DC-Bias Voltages on Headphone Ground Pin
  – No Output DC-Blocking Capacitors
  – Reduced Board Area
  – Reduced Component Cost
  – Improved THD+N Performance
  – No Degradation of Low-Frequency Response Due to Output Capacitors
• Wide Power Supply Range: 1.8 V to 4.5 V
• 80-mW/Ch Output Power into 16-Ω at 4.5 V
• Independent Right and Left Channel Shutdown Control
• Short-Circ.