TDF8546ATH/N1,118 datasheet, PDF

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TDF8546ATH/N1,118: DescriptionTDF8546ATH/N1,118 amplifier basic information: TDF8546ATH/N1,118 is an audio amplifier (Audio Amplifiers) from NXP. It belongs to the TDF8546 series of products. TDF8546ATH/N1,118 amplifier core information: The minimum operating temperature of the TDF8546ATH/N1,118 is - 40 C and the maximum operating temperature is + 150 C. The amplifier gain of TDF8546ATH/N1,118 can reach: 26 dB (Amplifier gain is the logarithm of the ratio of the amplifier output power to the input power, which is used to express the degree of power amplification. It also refers to the amplification factor of voltage or current. Similarly, decibels is the amplifier The unit of gain is 45 W x 4 at 4 Ohms. When a voltage difference of 2 V is input between the TDF8546ATH/N1,118 input pins, the output voltage of this amplifier is 0V. (That is, its input bias voltage is 2 V) Related dimensions of TDF8546ATH/N1,118: Number of channels in total: 4 Channels. TDF8546ATH/N1,118 amplifier additional information: Its more detailed single package form is: HSOP-36. When suppliers on the market sell TDF8546ATH/N1,118, they use the form: Reel.; Categorysemiconductor Audio IC Audio amplifier; File Size415KB，22 Pages; ManufacturerNXP; Websitehttps://www.nxp.com; Environmental Compliance; Alternative parts：TDF8546ATH/N1,118

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TDF8546ATH/N1,118 Overview

TDF8546ATH/N1,118 amplifier basic information:

TDF8546ATH/N1,118 is an audio amplifier (Audio Amplifiers) from NXP. It belongs to the TDF8546 series of products.

TDF8546ATH/N1,118 amplifier core information:

The minimum operating temperature of the TDF8546ATH/N1,118 is - 40 C and the maximum operating temperature is + 150 C.

The amplifier gain of TDF8546ATH/N1,118 can reach: 26 dB (Amplifier gain is the logarithm of the ratio of the amplifier output power to the input power, which is used to express the degree of power amplification. It also refers to the amplification factor of voltage or current. Similarly, decibels is the amplifier The unit of gain is 45 W x 4 at 4 Ohms.

When a voltage difference of 2 V is input between the TDF8546ATH/N1,118 input pins, the output voltage of this amplifier is 0V. (That is, its input bias voltage is 2 V)

Related dimensions of TDF8546ATH/N1,118:

Number of channels in total: 4 Channels.

TDF8546ATH/N1,118 amplifier additional information:

Its more detailed single package form is: HSOP-36. When suppliers on the market sell TDF8546ATH/N1,118, they use the form: Reel.

TDF8546ATH/N1,118 Parametric

Parameter Name	Attribute value
Maker	NXP
Product Category	audio amplifier
series	TDF8546
product	Audio Amplifiers
kind	Class-AB
Output Power	45 W x 4 at 4 Ohms
Installation style	SMD/SMT
type	BTL
Package/box	HSOP-36
Audio - Load Impedance	4 Ohms
THD + noise	0.03 %
Supply voltage - max.	18 V
Supply voltage - min.	6 V
Minimum operating temperature	- 40 C
Maximum operating temperature	+ 150 C
Encapsulation	Cut Tape
Encapsulation	Reel
Output current	250 mA
Gain	26 dB
Number of channels	4 Channel
closure	No Shutdown
Factory packaging quantity	500
Vos - 输入偏置电压	2 V

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TDF8546

C-bus controlled 4



45 W best efficiency amplifier

Rev. 8 — 27 September 2013

Product short data sheet

1. General description

The TDF8546 is one of a new generation of complementary quad Bridge-Tied Load (BTL)

audio power amplifiers intended for automotive applications. It has a best efficiency mode

with full I

C-bus controlled diagnostics, including start-up diagnostics. The TDF8546 can

operate at a battery voltage as low as 6 V making this amplifier suitable for stop/start-car

operation.

The new best efficiency principle uses a patented switch technique which reduces

switching distortion. To reduce power dissipation, the new best efficiency principle uses

the audio information on all four channels instead of only the front or rear signals.

Dissipation is more than 65 % less than standard BTL when used for front and rear

correlated audio signals. Dissipation is 35 % less than standard BTL when used for

uncorrelated (delayed) audio signals between front and rear. It is 17 % less for

uncorrelated audio signals when the front or rear information is used.

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

perfect 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.

2. Features and benefits



Stop/start-car prepared: keeps operating without audible disturbance during engine

start at a battery voltage as low as 6 V



New best efficiency mode with patented low switching distortion



Extreme best efficiency mode (uses information from 4 channels) with 17 % less

dissipation for uncorrelated signals compared to 2-channel best efficiency mode.



Operates in either legacy (non-I

C-bus) or I

C-bus modes (3.3 V and 5 V compliant)



Four hardware-programmable I

C-bus addresses



Can drive 2



and 4



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

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Description	Audio amplifier Class AB Amplifier	Audio amplifier I2C-bus controlled 4 x 45 W best efficiency amplifier	Audio amplifier Class AB Amplifier	Audio amplifier TDF8546AJS/DBSMS27P//N1/STANDARD MARKING * TUBE DR	Audio amplifier Class AB Amplifier	Audio amplifier Class AB Amplifier	Audio amplifier Class AB Amplifier	Audio amplifier TDF8546JS/DBSMS27P/TUBEDP//N1	Audio amplifier Class AB Amplifier	Audio amplifier I2C-bus controlled 4 x 45 W best efficiency amplifier
Maker	NXP	NXP	NXP	NXP	NXP	NXP	NXP	-	NXP	-
Product Category	audio amplifier	-	audio amplifier	audio amplifier	audio amplifier	audio amplifier	audio amplifier	-	audio amplifier	-
series	TDF8546	-	TDF8546	TDF8546	TDF8546	TDF8546	TDF8546	-	TDF8546	-
product	Audio Amplifiers	-	Audio Amplifiers	Audio Amplifiers	Audio Amplifiers	Audio Amplifiers	Audio Amplifiers	-	Audio Amplifiers	-
kind	Class-AB	-	Class-AB	Class-AB	Class-AB	Class-AB	Class-AB	-	Class-AB	-
Output Power	45 W x 4 at 4 Ohms	-	45 W x 4 at 4 Ohms	45 W x 4 at 4 Ohms	45 W x 4 at 4 Ohms	45 W x 4 at 4 Ohms	45 W x 4 at 4 Ohms	-	45 W x 4 at 4 Ohms	-
Installation style	SMD/SMT	-	Through Hole	SMD/SMT	Through Hole	SMD/SMT	SMD/SMT	-	Through Hole	-
type	BTL	-	BTL	BTL	BTL	BTL	BTL	-	BTL	-
Package/box	HSOP-36	-	DBS-27	DBSMS-27	SIP-27	DBSMS-27	HSOP-36	-	SIP-27	-
Audio - Load Impedance	4 Ohms	-	4 Ohms	4 Ohms	4 Ohms	4 Ohms	4 Ohms	-	4 Ohms	-
THD + noise	0.03 %	-	0.03 %	0.03 %	0.03 %	0.03 %	0.03 %	-	0.03 %	-
Supply voltage - max.	18 V	-	18 V	18 V	18 V	18 V	18 V	-	18 V	-
Supply voltage - min.	6 V	-	6 V	6 V	6 V	6 V	6 V	-	6 V	-
Minimum operating temperature	- 40 C	-	- 40 C	- 40 C	- 40 C	- 40 C	- 40 C	-	- 40 C	-40 °C
Maximum operating temperature	+ 150 C	-	+ 150 C	+ 150 C	+ 150 C	+ 150 C	+ 150 C	-	+ 150 C	105 °C
Output current	250 mA	-	250 mA	250 mA	250 mA	250 mA	250 mA	-	250 mA	-
Gain	26 dB	-	26 dB	26 dB	26 dB	26 dB	26 dB	-	26 dB	-
Number of channels	4 Channel	-	4 Channel	4 Channel	4 Channel	4 Channel	4 Channel	-	4 Channel	-
closure	No Shutdown	-	No Shutdown	No Shutdown	No Shutdown	No Shutdown	No Shutdown	-	No Shutdown	-
Vos - 输入偏置电压	2 V	-	2 V	2 V	2 V	2 V	2 V	-	2 V	-

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