Product Summary

TMPA401DM is a bridged-tied (BTL) Class-D audio amplifier for driving speakers with high power efficiency. It can drive 4Ω, 6Ω, 8Ω or 16Ω speakers. The output power can be up to 15W. No external heat-sink is necessary. The gain of the TMPA401DM is defined by input resistance. The internally fully differential input structure provides good common mode rejection and power supply rejection. The applications of the TMPA401DM are LCD Monitors, TVs, DVD Players and Powered Speakers.

Parametrics

TMPA401DM absolute maximum ratings: (1)Supply voltage, PVcc, Vcc: In normal mode:-0.3V to 18V, In shutdown mode:-0.3V to 18V; (2)Input voltage,SD:-0.3V to Vcc+0.3V; (3)Operating free-air temperature, TA:-20℃ to 85℃; (4)Operating junction temperature, TJ:-20℃ to 150℃; (5)Storage temperature, Tstg:-40℃ to 150℃.

Features

TMPA401DM features: (1)15-W Class-D Output; (2)Power efficiency is up to 82%; (3)Time delay for de-pop control; (4)Thermal Protection; (5)Output Pin Short-Circuit Protection (Short to Other Outputs, Short to VCC, Short to Ground); (6)Differential / Single-Ended Input; (7)Low Supply Current (5mA Typical at 12V); (8)Low Current in Shutdown Mode (<1μA Typical); (9)Separate VCC & PVCC.

Diagrams

TMPA401DM reference circuit

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