Audio Amp Headphone/Speaker 1-CH Mono/2-CH Stereo 2W Class-AB 10-Pin HTSSOP EP

The TPA0243 is a 2-W mono bridge-tied-load (BTL) amplifier designed to drive speakers with as low as 4-O speaker.The gain of the input stage is set by the user-selected input resistor and a 50-kO/ RI in BTL mode. The input terminals are high-impedance CMOS inputs, and can be used as summing nodes. The TPA0243 is available in the 10-pin thermally-enhanced MSOP package (DGQ) and operates over an ambient temperature range of –40°C to 85°C.

Ideal for Notebook Computers, PDAs, and Other Small Portable Audio Devices

2 W Into 4-O From 5-V Supply

0.6 W Into 4-O From 3-V Supply

Stereo Head Phone Drive

Mono (BTL) Signal Created by Summing Left and Right Signals

Wide Power Supply Compatibility 3 V to 5 V

Meets PC99 Desktop Specs (target)

Low Supply Current

• 10 mA Typical at 5 V
• 9 mA Typical at 3 V

Shutdown Control ...1 uA Typical

Shutdown Pin Is TTL Compatible

–40°C to 85°C Operating Temperature Range

Space-Saving, Thermally-Enhanced MSOP Packaging