TPA6211TDGNRQ1

Overview

The TPA6211T-Q1 is a 3.1-W mono fully-differential Class-AB audio power amplifier designed for automotive applications. It operates from a single supply voltage ranging from 2.5 V to 5.5 V and delivers up to 3.1 W into a 3-Ω load at 5 V with 10% THD. The device features a typical quiescent current of 4 mA and a shutdown current of 0.01 µA. It includes thermal protection, pop suppression, and an active-low shutdown pin. The component is housed in an 8-pin HVSSOP package and is qualified to AEC-Q100 Grade 2 standards for operation between -40°C and 105°C.

Feature Summary

• Fully differential architecture eliminates input coupling capacitors and improves RF rectification immunity
• Integrated thermal protection shuts down the device when junction temperature exceeds 150°C
• Fast startup with minimal pop noise upon exiting shutdown mode
• High power supply rejection ratio reduces audible ripple from battery fluctuations

Applications

• Automotive audio systems
• Emergency call modules
• Driver notification circuits
• Cluster chime generators

Procurement Notes

Verify that the specific part number suffix matches the required package variant, as the TPA6211T-Q1 family includes different packaging options such as HVSSOP. Confirm AEC-Q100 qualification status is required for your specific automotive application tier. Ensure the ordering code corresponds to the correct tape-and-reel or tube quantity if applicable. Cross-reference the datasheet revision date to ensure compatibility with your design specifications.

Selection Notes

Select this component for designs requiring a space-efficient solution with minimal external components. The fully differential input allows direct connection to DACs without mid-supply biasing constraints. Consider the thermal dissipation characteristics when designing for high-power outputs, as efficiency varies significantly with load impedance and supply voltage. Verify that the 3-Ω to 8-Ω speaker impedance range aligns with the target output power requirements.

Part Context

This device belongs to Texas Instruments' automotive-grade audio amplifier portfolio. It is specifically engineered to replace discrete solutions or older amplifiers in compact infotainment and safety-critical vehicle systems. The TPA6211T-Q1 shares functional similarities with other members of the TPA6211 family but is distinguished by its automotive qualification and specific package availability.

Replacement Considerations

TPA6211A1-Q1

FAQ

Is a mid-supply bypass capacitor required for the TPA6211T-Q1?

No, the fully differential design cancels mid-supply shifts, making the bypass capacitor optional.

How does the fully differential output affect power delivery?

The differential drive doubles the voltage swing across the load compared to single-ended configurations, effectively quadrupling the potential output power for the same supply rail and impedance.