TDF8541 | Complementary Quad Bridge-Tied Load Audio Power Amplifier | NXP Semiconductors

Automotive

Industrial

Consumer

Technologies

I2C-Bus Controlled 4 x 45 W Power Amplifier

TDF8541 Active

The TDF8541 is one of a new generation of complementary quad Bridge-Tied Load (BTL) audio power amplifiers intended for automotive applications. It has full I²C-bus controlled diagnostics, including start-up diagnostics. The TDF8541 can operate at a battery voltage as low as 6 V making this amplifier suitable for stop/start-car operation.

The amplifier uses a complementary DMOS output stage in a Silicon-On-Insulator (SOI)- based BCD process. The DMOS output stage ensures a high- power output signal with advanced sound quality. The SOI-based BCD process ensures a robust amplifier, where latch-up cannot occur, with good separation between the four independent channels, with every component isolated and without substrate currents.

Product Details

Features

Key Features

  • Stop/start-car prepared: keeps operating without audible disturbance during engine start at a battery voltage as low as 6 V
  • Operates in either legacy (non I²C-bus) or I²C-bus modes (3.3 V and 5 V compliant)
  • Four hardware-programmable I²C-bus addresses
  • Can drive 2 Ω and 4 Ω loads
  • Speaker fault detection
  • Start-up diagnostics with load detection: open, short, present; filtered for door-slam and chatter relays
  • AC load (tweeter) detection with low and high current mode
  • Gain select after start-up without audible disturbance
  • Independent selectable soft mute of front and rear channels
  • Programmable gain (26 dB and 16 dB), independently programmable for the front and rear channels
  • Line driver mode supports engine start at a battery voltage as low as 6 V (16 dB and mid-tap voltage 0.25 x VP)
  • Programmable clip detect: 2 %, 5 % or 10 %
  • Programmable thermal pre-warning
  • Pin STB can be programmed/multiplexed with second-clip detect
  • Clip information of each channel can be directed separately to pin DIAG or pin STB
  • Independent enabling of thermal- , clip- or load fault information (short across the load or to VP or to ground) on pin DIAG
  • Loss-of-ground and open VP safe (minimum series resistance required)
  • All amplifier outputs short-circuit proof to ground, supply voltage and across the load (channel independent)
  • All pins short-circuit proof to ground
  • Temperature controlled gain reduction to prevent audio holes at high junction temperatures
  • Programmable low battery voltage detection to enable 7.5 V or 6 V minimum battery voltage operation
  • Over-voltage protection (load-dump safe up to VP = 50 V) with over-voltage pre-warning at 16 V
  • Offset detection

Buy/Parametrics

4 results

Include 0 NRND

Part

Show description

Order

CAD Model

Remark

Status

RMS power (W)

Gain (dB)

Channel configuration

Package Type

TDF8541J

I2C Bus diagnostic

Active

4 x 25

26

BTL/quad

DBS27P

TDF8541JS

I2C Bus diagnostic

Active

4 x 25

26

BTL/quad

DBSMS27P

TDF8541SD

I2C Bus diagnostic

Active

4 x 25

26

BTL/quad

RDBS27P

TDF8541TH

I2C Bus diagnostic

Active

4 x 25

26

BTL/quad

HSOP36

N true 0 PSPTDF8541en 5 Brochure Brochure t518 1 Package Information Package Information t790 4 en_US en_US en Brochure Brochure 1 1 0 Chinese 这些先进的AB类放大器设计用于带启停功能的汽车，支持在发动机启停期间无缝收听音频流。该放大器的工作电压范围为6至18 V。 1442049047911743140176zh PSP 487.1 KB None None documents None 1442049047911743140176 /docs/zh/brochure/75017414.pdf 487121 /docs/zh/brochure/75017414.pdf 75017414 documents N N 2019-06-04 Seamless sound experience for start-stop cars /docs/zh/brochure/75017414.pdf /docs/zh/brochure/75017414.pdf Brochure N 712453003803778552 2022-12-07 zh Jul 28, 2021 712453003803778552 Brochure Y N 启停汽车时的无缝音响体验 1.0 English 1442049047911743140176 PSP 487.1 KB None None documents None 1442049047911743140176 /docs/en/brochure/75017414.pdf 487121 /docs/en/brochure/75017414.pdf 75017414 documents N N 2019-06-04 Seamless sound experience for start-stop cars /docs/en/brochure/75017414.pdf /docs/en/brochure/75017414.pdf Brochure N 712453003803778552 2022-12-07 pdf N en Apr 1, 2019 712453003803778552 Brochure Y N Seamless sound experience for start-stop cars Package Information Package Information 4 2 1.0 English 1455078826650702681624 PSP 486.4 KB None None documents None 1455078826650702681624 /docs/en/package-information/SOT827-1.pdf 486387 /docs/en/package-information/SOT827-1.pdf SOT827-1 documents N N 2016-02-12 plastic DIL-bent-SIL (special bent) power package; 27 leads (lead length 6.8 mm) /docs/en/package-information/SOT827-1.pdf /docs/en/package-information/SOT827-1.pdf Package Information N 302435339416912908 2022-12-07 pdf N en Feb 8, 2016 302435339416912908 Package Information Y N plastic DIL-bent-SIL (special bent) power package; 27 leads (lead length 6.8 mm) 3 1.0 English 1455078963856726563892 PSP 462.0 KB None None documents None 1455078963856726563892 /docs/en/package-information/SOT1154-1.pdf 462000 /docs/en/package-information/SOT1154-1.pdf SOT1154-1 documents N 2016-02-09 plastic dual bent surface mounted SIL power package; 27 leads /docs/en/package-information/SOT1154-1.pdf /docs/en/package-information/SOT1154-1.pdf Package Information N 302435339416912908 2022-12-07 pdf en Feb 8, 2016 302435339416912908 Package Information Y N plastic dual bent surface mounted SIL power package; 27 leads 4 1.0 English 1455079142699709911802 PSP 562.0 KB None None documents None 1455079142699709911802 /docs/en/package-information/SOT878-1.pdf 562024 /docs/en/package-information/SOT878-1.pdf SOT878-1 documents N N 2018-04-10 plastic rectangular-DIL-bent-SIL (reverse bent) power package; 27 leads (row spacing 2.54 mm) /docs/en/package-information/SOT878-1.pdf /docs/en/package-information/SOT878-1.pdf Package Information N 302435339416912908 2022-12-07 pdf N en Feb 8, 2016 302435339416912908 Package Information Y N plastic rectangular-DIL-bent-SIL (reverse bent) power package; 27 leads (row spacing 2.54 mm) 5 1.0 English 1455078735060716171086 PSP 820.7 KB None None documents None 1455078735060716171086 /docs/en/package-information/SOT851-2.pdf 820665 /docs/en/package-information/SOT851-2.pdf SOT851-2 documents N N 2016-02-12 plastic, heatsink small outline package; 36 leads; low stand-off height /docs/en/package-information/SOT851-2.pdf /docs/en/package-information/SOT851-2.pdf Package Information N 302435339416912908 2022-12-07 pdf N en May 4, 2004 302435339416912908 Package Information Y N plastic, heatsink small outline package; 36 leads; low stand-off height false 0 TDF8541 downloads en true 1 Y PSP Brochure 1 /docs/en/brochure/75017414.pdf 2019-06-04 1442049047911743140176 PSP 1 Apr 1, 2019 Brochure None /docs/en/brochure/75017414.pdf English documents 487121 None 712453003803778552 2022-12-07 N /docs/en/brochure/75017414.pdf Seamless sound experience for start-stop cars /docs/en/brochure/75017414.pdf documents 712453003803778552 Brochure N en None Y pdf 1.0 N N Seamless sound experience for start-stop cars 487.1 KB 75017414 N 1442049047911743140176 Package Information 4 /docs/en/package-information/SOT827-1.pdf 2016-02-12 1455078826650702681624 PSP 2 Feb 8, 2016 Package Information None /docs/en/package-information/SOT827-1.pdf English documents 486387 None 302435339416912908 2022-12-07 N /docs/en/package-information/SOT827-1.pdf plastic DIL-bent-SIL (special bent) power package; 27 leads (lead length 6.8 mm) /docs/en/package-information/SOT827-1.pdf documents 302435339416912908 Package Information N en None Y pdf 1.0 N N plastic DIL-bent-SIL (special bent) power package; 27 leads (lead length 6.8 mm) 486.4 KB SOT827-1 N 1455078826650702681624 /docs/en/package-information/SOT1154-1.pdf 2016-02-09 1455078963856726563892 PSP 3 Feb 8, 2016 Package Information None /docs/en/package-information/SOT1154-1.pdf English documents 462000 None 302435339416912908 2022-12-07 /docs/en/package-information/SOT1154-1.pdf plastic dual bent surface mounted SIL power package; 27 leads /docs/en/package-information/SOT1154-1.pdf documents 302435339416912908 Package Information N en None Y pdf 1.0 N plastic dual bent surface mounted SIL power package; 27 leads 462.0 KB SOT1154-1 N 1455078963856726563892 /docs/en/package-information/SOT878-1.pdf 2018-04-10 1455079142699709911802 PSP 4 Feb 8, 2016 Package Information None /docs/en/package-information/SOT878-1.pdf English documents 562024 None 302435339416912908 2022-12-07 N /docs/en/package-information/SOT878-1.pdf plastic rectangular-DIL-bent-SIL (reverse bent) power package; 27 leads (row spacing 2.54 mm) /docs/en/package-information/SOT878-1.pdf documents 302435339416912908 Package Information N en None Y pdf 1.0 N N plastic rectangular-DIL-bent-SIL (reverse bent) power package; 27 leads (row spacing 2.54 mm) 562.0 KB SOT878-1 N 1455079142699709911802 /docs/en/package-information/SOT851-2.pdf 2016-02-12 1455078735060716171086 PSP 5 May 4, 2004 Package Information None /docs/en/package-information/SOT851-2.pdf English documents 820665 None 302435339416912908 2022-12-07 N /docs/en/package-information/SOT851-2.pdf plastic, heatsink small outline package; 36 leads; low stand-off height /docs/en/package-information/SOT851-2.pdf documents 302435339416912908 Package Information N en None Y pdf 1.0 N N plastic, heatsink small outline package; 36 leads; low stand-off height 820.7 KB SOT851-2 N 1455078735060716171086 true Y Products

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