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TPA3144D2

ACTIVE

6-W stereo, 12-W mono, 4.5- to 14.4-V, analog in Class-D audio amplifier w/ inductor free & AGL

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Data sheet

TPA3144D2

ACTIVE
Data sheet Order now

Product details

Audio input type Analog Input Architecture Class-D Speaker channels (max) Stereo Rating Catalog Power stage supply (max) (V) 14.4 Power stage supply (min) (V) 4.5 Load (min) (Ω) 2 Output power (W) 6 SNR (dB) 102 THD + N at 1 kHz (%) 0.06 Iq (typ) (mA) 35 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 4.5 Analog supply voltage (max) (V) 14.4 PSRR (dB) 65 Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-D Speaker channels (max) Stereo Rating Catalog Power stage supply (max) (V) 14.4 Power stage supply (min) (V) 4.5 Load (min) (Ω) 2 Output power (W) 6 SNR (dB) 102 THD + N at 1 kHz (%) 0.06 Iq (typ) (mA) 35 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 4.5 Analog supply voltage (max) (V) 14.4 PSRR (dB) 65 Operating temperature range (°C) -40 to 85
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4
  • 2x6 W/ch into 4-Ω Loads at 10% THD+N from a 7-V Supply
  • 2x6 W/ch into 6-Ω Loads at 10% THD+N from a 9.5-V Supply
  • 2x6 W/ch into 8-Ω Loads at 10% THD+N from a 10-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
  • <65-µV A-wgt Output Noise
  • Wide Supply Voltage Range Allows Operation SpeakerGuard™ speaker protection circuitry includes from 4.5 V to 14.4 V
  • Inductor-Free Operation
  • Enhanced EMI Performance with Spread Spectrum and 1SPW Operation
  • SpeakerGuard™ Speaker Protection Includes Automatic Gain Limit, Adjustable Power Limiter, and DC Protection
  • Robust Pin-to-Pin, Pin-to-Ground, and Pin-to-Power Short Circuit Protection and Thermal Protection
  • Four Selectable, Fixed Gain Settings
  • Single Ended or Differential Analog Inputs
  • Click and Pop Free Startup
  • 2x6 W/ch into 4-Ω Loads at 10% THD+N from a 7-V Supply
  • 2x6 W/ch into 6-Ω Loads at 10% THD+N from a 9.5-V Supply
  • 2x6 W/ch into 8-Ω Loads at 10% THD+N from a 10-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
  • <65-µV A-wgt Output Noise
  • Wide Supply Voltage Range Allows Operation SpeakerGuard™ speaker protection circuitry includes from 4.5 V to 14.4 V
  • Inductor-Free Operation
  • Enhanced EMI Performance with Spread Spectrum and 1SPW Operation
  • SpeakerGuard™ Speaker Protection Includes Automatic Gain Limit, Adjustable Power Limiter, and DC Protection
  • Robust Pin-to-Pin, Pin-to-Ground, and Pin-to-Power Short Circuit Protection and Thermal Protection
  • Four Selectable, Fixed Gain Settings
  • Single Ended or Differential Analog Inputs
  • Click and Pop Free Startup

The TPA3144D2 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 and 1SPW modulation scheme enables the use of inexpensive ferrite bead filters at the outputs while meeting EMC requirements for system cost reduction. TPA3144D2 is not only fully protected against shorts and overload, the SpeakerGuard™ speaker protection circuitry includes an adjustable Automatic Gain Limit (AGL), an adjustable power limiter and a DC detection circuit for protection of the connected speakers. The AGL allows adjustment of the maximum output voltage without signal clipping for enhanced speaker protection and audio quality. 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 feature.

The TPA3144D2 can drive stereo speakers with as low as 4-Ω impedance. The high efficiency of the TPA3144D2, 90% with an 8-Ω load, eliminates the need for an external heat sink, and TPA3144D2 will be able to output full power on a 2-layer PCB.

The TPA3144D2 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 and 1SPW modulation scheme enables the use of inexpensive ferrite bead filters at the outputs while meeting EMC requirements for system cost reduction. TPA3144D2 is not only fully protected against shorts and overload, the SpeakerGuard™ speaker protection circuitry includes an adjustable Automatic Gain Limit (AGL), an adjustable power limiter and a DC detection circuit for protection of the connected speakers. The AGL allows adjustment of the maximum output voltage without signal clipping for enhanced speaker protection and audio quality. 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 feature.

The TPA3144D2 can drive stereo speakers with as low as 4-Ω impedance. The high efficiency of the TPA3144D2, 90% with an 8-Ω load, eliminates the need for an external heat sink, and TPA3144D2 will be able to output full power on a 2-layer PCB.

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* Data sheet TPA3144D2 6-W Inductor Free Stereo (BTL) Class-D Audio Amplifier with Ultra Low EMIand AGL datasheet (Rev. C) PDF | HTML 18 Dec 2017

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