TAS6754QDKQRQ1 - Automotive 4-Ch Class-D Audio Amp | TI
MPN: TAS6754QDKQRQ1 ✓ AktifTAS6754QDKQRQ1 Genel Bakış
A Class-D audio amplifier is a switching amplifier that converts a digital or analog audio signal into a high-frequency pulse-width modulated square wave, which is then low-pass filtered to reconstruct the audio. Class-D topologies achieve high efficiency (typically 80-90%) because the output transistors operate as switches, minimizing power dissipation compared to linear Class-AB amplifiers. In automotive audio systems, this efficiency reduces heat-sinking requirements and extends the available audio power from the vehicle's electrical system.
Key features include four independent audio channels, 1L modulation that removes four inductors versus traditional designs, 2MHz switching for compact output filters, integrated current sense, and DC/AC real-time load diagnostics. The 19V rated supply is aligned with automotive audio power rails, and the AEC-Q100 Q1 suffix qualifies the device for automotive applications. The 56-pin HSSOP package supports surface-mount assembly with an exposed thermal pad for heat removal.
1L modulation is a proprietary Class-D scheme that uses a single inductor per bridge-tied-load channel, reducing system cost and size. The 2MHz switching rate moves the switching fundamental well above the audio band, simplifying the output low-pass filter and lowering out-of-band emissions. Integrated current sense and real-time load diagnostics monitor speaker health, enabling fault detection for shorts, opens, and degradation. The digital input accepts common automotive digital audio formats, eliminating the need for a separate DAC and analog front end.
Typical applications include automotive infotainment head units, external amplifier modules, EV pedestrian warning (AVAS), telematics/eCall audio, rear-seat entertainment, and commercial-vehicle audio. The device is especially suited for designs where four channels of clean audio must be delivered from a 19V rail with minimal inductor count and integrated diagnostic coverage.
When designing with the TAS6754QDKQRQ1, provide sufficient copper area on the exposed thermal pad and keep the output LC filter close to the device to minimize EMI. Verify the digital audio source timing and protocol against the datasheet before PCB layout.
Drop-in alternatifler için TAS6754QDKQRQ1 — aynı paket, pin-başına uyumlu. PCB yeniden montajı gerektiren farklı paket bileşenleri dışlanmıştır.
Bu Serideki Variantlar
Yedek parça uyumlu olan aynı serideki modeller TAS6754QDKQRQ1 (aynı form faktörü ve ayağa oturma) — farklı olan Number of Channels, Package.
TAS6424QDKQRQ1
✅ Yerleştirme ⚠️ Onaylanmamış ÖzelliklerFiyat için iletişime geçin
Veri Şablonunu Görüntüle →TAS6424EQDKQRQ1
✅ Yerleştirme ⚠️ Onaylanmamış Özellikler📋 Katalogda Olmayan Referans Alternatifi
TAS6584QDKQRQ1
✅ Yerleştirme ⚠️ Onaylanmamış Özellikler📋 Katalogda Olmayan Referans Alternatifi
TAS6422QDKQRQ1
⚡ Aynı Paket ⚠️ Onaylanmamış Özellikler📋 Katalogda Olmayan Referans Alternatifi
TAS6422EQDKQRQ1
⚡ Aynı Paket ⚠️ Onaylanmamış Özellikler📋 Katalogda Olmayan Referans Alternatifi
TAS6754QDKQRQ1 Maksimum Değerlendirmeler & Elektriksel Özellikler
| Amplifier Type | Class-D audio amplifier |
| Number of Channels | 4 |
| Input Type | Digital input |
| Modulation | 1L modulation (one inductor per BTL channel) |
| Değiştirme Frekansı | 2 MHz |
| Besleme Gerilimi | 19 V (automotive) |
| Current Sense | Integrated |
| Load Diagnostics | DC and AC real-time load diagnostics |
| Paket | 56-HSSOP (DKQ) with exposed thermal pad |
| Pin Sayısı | 56 |
| Montaj Türü | Surface Mount |
| AEC-Q100 | Qualified (Q1 suffix) |
| Datasheet Size | 59 pages, 2Mb PDF |
TAS6754QDKQRQ1 56-hssop (dkq) with exposed thermal pad Pin Yapısı Kılavuzu
TAS6754QDKQRQ1 (56-hssop (dkq) with exposed thermal pad paket) için pin yapısı. Bu analog bileşen, giriş, çıkış ve güç besleme pinleri içerir. Ofset null, telafi ve etkinleştirme pin yapılandırmaları için üretici veri kitapçığını referans alın. Sinyal işleme ve güç amplifikasyon devreleri için mükemmel bir bileşendir.
Ayrıntılı pin çıkış verisi mevcut değil: TAS6754QDKQRQ1.
Aşağıdaki veri sayfası tam pin konfigürasyonu için.
Tipik Uygulamalar
TAS6754QDKQRQ1 için uygundur 6 uygulamas: Automotive Infotainment Head Unit, External Amplifier Module, EV Warning Sound System (AVAS), Telematics and eCall Audio, Rear-Seat Entertainment, Heavy-Duty Commercial Vehicle Audio.
Automotive Infotainment Head Unit
The TAS6754QDKQRQ1 drives 4 speaker channels in a car radio or infotainment system, using 1L modulation to reduce inductor count. Its 19V supply fits automotive battery rails, and integrated current sense/diagnostics enable speaker fault detection. Placed between the head-unit SoC and the speakers, it converts the digital audio stream to high-efficiency Class-D power. Use a 2MHz LC output filter and adequate copper for the exposed pad to keep EMI low.
Önerilen
External Amplifier Module
In a standalone booster amplifier, the TAS6754QDKQRQ1 accepts a digital audio input and drives aftermarket speakers. Its 2MHz switching frequency allows compact output filters, and DC/AC load diagnostics report speaker health over the vehicle bus. The device is powered from a 19V boost or battery rail; add a 5V LDO for the digital interface. This module is suitable for premium audio upgrades where 4-channel output and low component count matter.
Önerilen
EV Warning Sound System (AVAS)
Electric vehicles require external pedestrian warning tones. The TAS6754QDKQRQ1 can amplify synthesized AVAS signals from an MCU with low latency and high efficiency. The integrated real-time load diagnostics ensure the external speaker is connected and functional, supporting OBD requirements. With 19V operation and 2MHz switching, it fits small ECU enclosures. The digital input simplifies connection to the vehicle audio bus or MCU.
Önerilen
Telematics and eCall Audio
In telematics control units, the TAS6754QDKQRQ1 provides hands-free audio amplification for emergency calls and voice prompts. Its high PSRR and low EMI Class-D output help pass automotive EMC tests. The 4-channel capability allows front/rear speaker zones and a dedicated chime channel. Use the current-sense outputs to implement speaker diagnostics required for eCall self-test.
Önerilen
Rear-Seat Entertainment
For rear-seat displays and headrest monitors, the TAS6754QDKQRQ1 delivers multi-channel audio from a digital source such as a SoC or HDMI audio extractor. The 19V rail can be generated from a USB-PD or automotive buck-boost. 1L modulation reduces the number of inductors, saving PCB area inside slim seatback housings. AC load diagnostics help detect damaged speaker jacks.
Önerilen
Heavy-Duty Commercial Vehicle Audio
Trucks and construction vehicles use 12V/24V electrical systems, but audio amplifiers often run from a regulated 19V rail. The TAS6754QDKQRQ1 accepts a digital audio bus from an RDS tuner or telematics gateway and drives 4 speakers in the cabin. Its real-time load diagnostics are useful for fleet maintenance, detecting open or shorted speakers without extra wiring. A wide-temperature version supports under-dash mounting.
Önerilen
Önerilen Ürünler Özeti
Mühendislik referans verileri: TAS6754QDKQRQ1 — karşılaştırma, tasarım rehberi ve uyumluluk bilgileri.
Seçim Kılavuzu
Alternatiflerle Karşılaştırma
| Parametre | Bu Ürün | TAS6424QDKQRQ1 | TAS6424EQDKQRQ1 | TAS6584QDKQRQ1 | TAS6422QDKQRQ1 |
|---|---|---|---|---|---|
| Package | 56-HSSOP (DKQ) | 56-HSSOP (DKQ) | 56-HSSOP (DKQ) | 56-HSSOP (DKQ) | 56-HSSOP (DKQ) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of Channels | 4 | 4 | 4 | 4 | 2 |
| Switching Frequency | 2 MHz | 2 MHz | 2 MHz | 2 MHz | 2 MHz |
| AEC-Q100 | Qualified | Qualified | Qualified | Qualified | Qualified |
| Input Type | Digital | Digital | Digital | Digital | Digital |
Ana Farklılayıcılar
- 1L modulation reduces inductor count (karşılaştırma:Traditional Class-D amplifiers)
- Integrated current sense and real-time load diagnostics (karşılaştırma:TAS6424QDKQRQ1)
- 4-channel capability (karşılaştırma:TAS6422QDKQRQ1)
Tasarım Notları
Place the output LC filter as close as possible to the TAS6754QDKQRQ1 outputs. The 2MHz switching frequency means the filter components should have low ESL/ESR and short traces. A solid ground plane under the amplifier and filter is essential to minimize loop inductance and reduce EMI. Route the digital audio input away from the output stage to avoid coupling.
The exposed thermal pad must be soldered to a copper area of at least 1 square inch on the PCB. With a 19V supply and Class-D efficiency around 85-90%, the dissipated power at 4 channels can still be significant. Add vias under the thermal pad to the inner ground planes. If the design drives continuous high power, consider additional copper in the enclosure for heat spreading.
The 2MHz switching edges generate broadband EMI. Use a properly damped output filter with ferrite beads if needed, and keep the filter ground return short. Follow TI's EVM layout guidelines for the TAS6754-Q1 to pass automotive CISPR 25 requirements. Adding a small RC snubber across the output nodes can reduce ringing without sacrificing audio performance.
Uyumluluk Bilgisi
AEC-Q100 qualified per Q1 suffix in part number. RoHS/REACH status not stated in verified web data as of 2026-08-28.
