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TAS5421-Q1

現行

具 I2C 診斷和負載突降功能的車用、22-W、1 通道、4.5 至 18-V 輸入 D 類音訊放大器

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產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
可直接投入的替代產品，相較於所比較的裝置，具備升級功能
TAS5441-Q1 現行 具有負載突降及 I2C 診斷功能的 22-W、類比輸入 1 通道車用 D 類音訊放大器 TAS5441-Q1 is our newest version of this device and enables non-blocking I2C in STANDBY mode.

TAS5421-Q1

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) Mono Rating Automotive Power stage supply (max) (V) 18 Power stage supply (min) (V) 4.5 Load (min) (Ω) 2 Output power (W) 22 THD + N at 1 kHz (%) 0.05 Iq (typ) (mA) 16 Control interface I2C Closed/open loop Closed Analog supply (min) (V) 4.5 Analog supply voltage (max) (V) 18 PSRR (dB) 75 Operating temperature range (°C) -40 to 125
Audio input type Analog Input Architecture Class-D Speaker channels (max) Mono Rating Automotive Power stage supply (max) (V) 18 Power stage supply (min) (V) 4.5 Load (min) (Ω) 2 Output power (W) 22 THD + N at 1 kHz (%) 0.05 Iq (typ) (mA) 16 Control interface I2C Closed/open loop Closed Analog supply (min) (V) 4.5 Analog supply voltage (max) (V) 18 PSRR (dB) 75 Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • Mono BTL Digital Power Amplifier
  • 22-W Output Power at 10% THD+N into 4 Ω
  • 4.5-V to 18-V Operating Range
  • 85% Efficiency into 4 Ω
  • Differential Analog Input
  • Speaker Guard™ Speaker Protection with Adjustable Power Limiter
  • 75-dB Power-Supply Rejection Ratio (PSRR)
  • Load Diagnostic Functions:
    • Open and Shorted Output Load
    • Output-to-Power and Output-to-Ground Shorts
  • Protection and Monitoring Functions:
    • Short-Circuit Protection
    • 40-V Load Dump Protection per ISO-7637-2
    • Output DC Level Detection while Music is Playing
    • Overtemperature Protection
    • Overvoltage and Undervoltage Protection
  • Thermally Enhanced 16-Pin HTSSOP (PWP) Package with PowerPAD Package (Pad Down)
  • Designed for Automotive EMC Requirements
  • Qualified According to AEC-Q100 Grade 2
  • ISO9000: 2002 TS16949 Certified
  • –40°C to 125°C Ambient Temperature Range

All trademarks are the property of their respective owners.

  • Mono BTL Digital Power Amplifier
  • 22-W Output Power at 10% THD+N into 4 Ω
  • 4.5-V to 18-V Operating Range
  • 85% Efficiency into 4 Ω
  • Differential Analog Input
  • Speaker Guard™ Speaker Protection with Adjustable Power Limiter
  • 75-dB Power-Supply Rejection Ratio (PSRR)
  • Load Diagnostic Functions:
    • Open and Shorted Output Load
    • Output-to-Power and Output-to-Ground Shorts
  • Protection and Monitoring Functions:
    • Short-Circuit Protection
    • 40-V Load Dump Protection per ISO-7637-2
    • Output DC Level Detection while Music is Playing
    • Overtemperature Protection
    • Overvoltage and Undervoltage Protection
  • Thermally Enhanced 16-Pin HTSSOP (PWP) Package with PowerPAD Package (Pad Down)
  • Designed for Automotive EMC Requirements
  • Qualified According to AEC-Q100 Grade 2
  • ISO9000: 2002 TS16949 Certified
  • –40°C to 125°C Ambient Temperature Range

All trademarks are the property of their respective owners.

The TAS5421-Q1 is a mono digital audio amplifier, ideal for use in automotive emergency call (eCall), telematics, instrument cluster, and infotainment applications. The device provides up to 22 W into 4 Ω at less than 10% THD+N from a 14.4-Vdc automotive battery. The wide operating voltage range and excellent efficiency make the device ideal for start-stop support or running from a backup battery when required. The integrated load-dump protection reduces external voltage clamp cost and size, and the onboard load diagnostics report the status of the speaker through I2C.

For all available packages, see the orderable addendum at the end of the datasheet.

The TAS5421-Q1 is a mono digital audio amplifier, ideal for use in automotive emergency call (eCall), telematics, instrument cluster, and infotainment applications. The device provides up to 22 W into 4 Ω at less than 10% THD+N from a 14.4-Vdc automotive battery. The wide operating voltage range and excellent efficiency make the device ideal for start-stop support or running from a backup battery when required. The integrated load-dump protection reduces external voltage clamp cost and size, and the onboard load diagnostics report the status of the speaker through I2C.

For all available packages, see the orderable addendum at the end of the datasheet.
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類型 標題 日期
* Data sheet TAS5421-Q1 22-W Mono Automotive Digital-Audio Amplifier With Load Dump and I2C Diagnostics datasheet (Rev. D) PDF | HTML 2015年 9月 2日
Application note TAS5421-Q1 and TAS5411-Q1 I2C Applications Note (Rev. B) PDF | HTML 2021年 6月 7日
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 2019年 8月 26日
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 2019年 6月 27日
Application note Short-to-Battery Protection Strategies for Class-D Amplifiers 2016年 11月 11日
Technical article How does the eCall system work? PDF | HTML 2016年 4月 22日
Technical article Instrument clusters: moving beyond chimes and dings (part 2) PDF | HTML 2015年 4月 17日
Application note TAS5421-Q1 Class-D Output Snubber Design 2015年 3月 19日
EVM User's guide TAS5421EVM User's Guide 2014年 7月 9日
Application note AN-1737 Managing EMI in Class D Audio Applications (Rev. A) 2013年 5月 1日
Application note Filter-Free Class-D Audio Amplifiers 2009年 11月 9日
Application note Power Rating in Audio Amplifier (Rev. A) 2005年 3月 4日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TAS5421EVM — 適用於 eCall、無線數據通訊、儀錶總成和車載資訊娛樂系統的 TAS5421EVM 音訊放大器評估板

The TAS5421EVM showcases the latest TI analog input class D closed-loop mono amplifier. The EVM can be used as stand-alone platform with default I2C register settings. The EVM also works with USB2IIC-2 board and TAS5421-Q1 GUI for programming I2C register settings.

使用指南: PDF
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開發模組 (EVM) 的 GUI

SLOC307 — TAS5421-Q1 EVM GUI Setup

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產品
喇叭放大器
TAS5421-Q1 — 具 I2C 診斷和負載突降功能的車用、22-W、1 通道、4.5 至 18-V 輸入 D 類音訊放大器
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模擬型號

TAS5421 IBIS Model

SLOM382.ZIP (19 KB) - IBIS Model
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模擬型號

TAS5421 TINA-TI Spice Model

SLOM396.ZIP (32 KB) - TINA-TI Spice Model
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模擬型號

TAS5421 TINA-TI Transient Spice Model

SLOM395.ZIP (13 KB) - TINA-TI Spice Model
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模擬型號

TAS5421-Q1 Unencrypted Pspice Model Package (Rev. A)

SLOM385A.ZIP (93 KB) - PSpice Model
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配置圖

TAS5421-Q1 Gerber, Schematic, Layout and BOM

SLOC309.ZIP (2882 KB)
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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參考設計

PMP9769 — 中間電壓較低的車用緊急呼叫電源參考設計

This reference design includes a complete power management solution for a standalone emergency call (eCall) system in an automotive environment. The circuit is supplied directly from the car battery rail. It also manages a backup battery to power the eCall system while the car battery rail is not (...)
Test report: PDF
電路圖: PDF
參考設計

PMP9768 — 中間電壓較高的車用緊急呼叫電源參考設計

This reference design includes a complete power management solution for a standalone emergency call (eCall) system in an automotive environment. The circuit is supplied directly from the car battery rail. It also manages a backup battery to power the eCall system while the car battery rail is not (...)
Test report: PDF
電路圖: PDF
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