TPA0243DGQ

Overview

The TPA0243DGQ is a 2-W mono bridge-tied-load (BTL) audio power amplifier with integrated stereo headphone drive, manufactured by Texas Instruments. It operates on a supply voltage range of 3 V to 5 V and delivers 2 W into a 4-Ω load at 5 V, or 0.6 W at 3 V. The device features low supply current consumption of 10 mA typical at 5 V and 9 mA at 3 V. It includes shutdown control with 1 µA typical standby current and operates within an ambient temperature range of -40°C to 85°C.

Feature Summary

• Integrates a mono BTL amplifier for speaker driving and a separate stereo single-ended output for headphones.
• Features a TTL-compatible shutdown pin that reduces supply current to approximately 1 µA when activated.
• Utilizes high-impedance CMOS inputs that function as summing nodes to create a mono signal from left and right channels.

Applications

• Notebook computers
• Personal Digital Assistants (PDAs)
• Small portable audio devices

Procurement Notes

Verify the specific package variant required, as the standard DGQ package is available in tape-and-reel format only when the 'R' suffix is added to the part number. Confirm RoHS compliance status and lead finish specifications against the latest manufacturer documentation before finalizing procurement orders.

Selection Notes

Select this component for designs requiring simultaneous mono speaker and stereo headphone outputs from a single IC. Ensure the application utilizes a 3 V to 5 V supply rail and requires a thermally enhanced MSOP package to manage heat dissipation effectively during high-power operation.

Part Context

This device belongs to the TPA02xx series of audio amplifiers designed for portable electronics. It is housed in a 10-pin thermally-enhanced MSOP PowerPAD package, which provides space-saving benefits while maintaining thermal performance suitable for compact consumer electronic enclosures.

Replacement Considerations

TPA0243DGQR