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通用型音訊放大器

TPA3137D2

現行

無電感器且具低 EMI 的 6-W 立體聲道、12-W 單聲道、4.5 至 14.4-V、類比 D 類音訊放大器

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產品規格表

TPA3137D2

現行
產品規格表 立即訂購

產品詳細資料

Audio input type Analog Input Architecture Class-D Speaker channels (max) Stereo Control interface Hardware Output power (W) 6 Power stage supply (max) (V) 14.4 Power stage supply (min) (V) 4.5 THD + N at 1 kHz (%) 0.04 Load (min) (Ω) 2 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 14.4 Rating Catalog Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-D Speaker channels (max) Stereo Control interface Hardware Output power (W) 6 Power stage supply (max) (V) 14.4 Power stage supply (min) (V) 4.5 THD + N at 1 kHz (%) 0.04 Load (min) (Ω) 2 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 14.4 Rating Catalog Operating temperature range (°C) -40 to 85
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4
  • 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 from 4.5 V to 14.4 V
  • Inductor-free operation
  • Enhanced EMI performance with spread spectrum
  • SpeakerGuard™ speaker protection includes power limiter and DC protection
  • Robust pin-to-pin, pin-to-ground, and pin-to-power short circuit protection and thermal protection
  • 26-dB Fixed gain
  • Single-ended or differential analog inputs
  • Click and pop free startup
  • 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 from 4.5 V to 14.4 V
  • Inductor-free operation
  • Enhanced EMI performance with spread spectrum
  • SpeakerGuard™ speaker protection includes power limiter and DC protection
  • Robust pin-to-pin, pin-to-ground, and pin-to-power short circuit protection and thermal protection
  • 26-dB Fixed gain
  • Single-ended or differential analog inputs
  • Click and pop free startup

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 feature.

The TPA3137D2 device can drive stereo speakers with as low as 4-Ω impedance. The high efficiency of the TPA3137D2, 90% with an 8-Ω load, eliminates the need for an external heat sink, and TPA3137D2 will be able to output full power on a 2-layer PCB.

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 feature.

The TPA3137D2 device can drive stereo speakers with as low as 4-Ω impedance. The high efficiency of the TPA3137D2, 90% with an 8-Ω load, eliminates the need for an external heat sink, and TPA3137D2 will be able to output full power on a 2-layer PCB.

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有關同樣能提供更低物料清單成本的 10-W 喇叭放大器，請參閱 TPA3138D2

有關具低待機功耗以延長電池續航力的 15-W 喇叭放大器，請參閱 TPA3129D2

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TPA3138D2 現行 無電感器的 10W 立體聲道、18.5W 單聲道、3.5 至 14.4V 類比輸入 D 類音訊放大器 TPA3138D2 is a 2x10W analog input amplifier in a TSSOP28 package.
TPA3139D2 現行 10W 3.5V 至 14.4V 無電感器立體聲道 QFN 類比輸入 D 類音訊放大器 TPA3139D2 is a 2x10W analog input amplifier in a VQFN package.

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類型 標題 日期
* Data sheet TPA3137D2 6-W Inductor Free Stereo (BTL) Class-D Audio Amplifier with Ultra Low EMI datasheet (Rev. C) PDF | HTML 2020年 1月 16日
Application brief TPA3138 Transition Guide – from TPA3110, TPA3113 2018年 7月 6日
Technical article Inductor-free innovation: low EMI Class-D audio PDF | HTML 2017年 8月 29日

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