TPA3136AD2PWP

Audio Amplifiers Overview

The TPA3136AD2PWP is a Class-D stereo audio amplifier manufactured by Texas Instruments, housed in an HTSSOP-28 package. It delivers 10 W per channel into 6 Ω or 8 Ω loads with 10% THD+N from a 12 V or 13 V supply respectively. The device operates on a wide supply voltage range of 8 V to 14.4 V and achieves up to 90% efficiency at 8 Ω. Key electrical parameters include a fixed gain of 26 dB, input offset voltage of 1.5 mV, and operating current of 35 mA. It supports single-ended or differential analog inputs and functions within a temperature range of -40°C to +125°C.

Audio Amplifiers Feature Summary

• Advanced EMI suppression technology utilizing spread spectrum control for enhanced electromagnetic compatibility.
• SpeakerGuard protection circuitry incorporating power limiting and DC detection to safeguard connected speakers.
• Robust protection mechanisms against pin-to-pin, pin-to-ground, and pin-to-power short circuits with thermal shutdown.
• Inductor-free operation capability enabling simplified output filter design using ferrite beads.

Audio Amplifiers Applications

• Televisions
• Bluetooth and wireless speakers
• Mini speakers
• USB speakers
• Consumer audio equipment

Audio Amplifiers Procurement Notes

Verify the specific AD2 suffix designation to confirm the minimum supply voltage requirement of 8 V, which differs from standard variants. Ensure the HTSSOP-28 package matches the target PCB footprint. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Validate that the operating temperature range meets the environmental constraints of the final assembly.

Audio Amplifiers Selection Notes

Select this component when a higher minimum supply voltage of 8 V is acceptable compared to lower-voltage alternatives. The fixed 26 dB gain suits applications requiring direct analog input without external attenuation. Consider the extended maximum operating temperature of +125°C for high-thermal environments. Verify that the 10 W output power aligns with the speaker impedance and supply voltage capabilities of the system design.

Audio Amplifiers Part Context

This part belongs to the TPA3136AD2 series of efficient Class-D audio power amplifiers designed for driving bridged-tied load (BTL) stereo speakers. It is part of Texas Instruments' portfolio of audio ICs focused on high-efficiency sound reproduction with minimal external components. The series emphasizes cost reduction through advanced EMI management and robust protection features suitable for mass-market consumer electronics.

Audio Amplifiers Replacement Considerations

The TPA3136D2PWP serves as a compatible alternative within the same family, differing primarily in its lower minimum supply voltage specification of 4.5 V compared to the 8 V requirement of the AD2 variant. Both share identical pinouts, package types, and core functional characteristics.