TPA3137D2 Overview
The TPA3137D2 device is an efficient, Class-D audio power amplifier for driving bridged-tied stereo speakers at up to 6 W, 6 Ω, or 8 Ω (per channel). Advanced EMI Suppression Technology with Spread Spectrum Control scheme enables the use of inexpensive ferrite bead filters at the outputs while meeting EMC requirements for system cost reduction. The TPA3137D2 device is not only fully protected against shorts and overload, the SpeakerGuard™ speaker protection circuitry includes a power limiter and a DC detection circuit for protection of the connected speakers. The DC detect and Pin-to-Pin, Pin-to-Ground, and Pin-to-Power Short Circuit protection circuit protect the speakers from output DC and pin shorts caused in production. The outputs are also fully protected against shorts to GND, PVCC, and output-to-output. The short-circuit protection and thermal protection includes an auto recovery...
TPA3137D2 Key Features
- 1 2 × 6 W/ch into 6-Ω Loads at 10% THD+N from a 12-V Supply
- 2 × 6 W/ch into 8-Ω Loads at 10% THD+N from a 13-V Supply
- Up to 90% Efficient Class-D Operation (8 Ω) Eliminates Need for Heat Sinks
- <0.05% THD+N at 1 W/4 Ω/1 kHz
- Wide Supply Voltage Range Allows Operation
- Inductor-Free Operation
- Enhanced EMI Performance with Spread
- SpeakerGuard™ Speaker Protection Includes
- Robust Pin-to-Pin, Pin-to-Ground, and Pin-to
- 26-dB Fixed Gain