Part number: TDA8954TH

Description: 

The TDA8954TH is a2 channel audio power amplifier which uses the class D technology for the power amplification. The audio signals are converted into pulse width modulation, TDA8954TH is a class D mono high-efficiency or stereo power amplifier with a single designed low power dissipation. The combined audio frequency of class D with audiophile sound quality is associated with the classification of AB amplifiers. It is supplied with diagnostic pins configuration for the monitoring status of fold black and other elementary component protection circuits.

Features and Specifications : 

  • It is 2-pin diagnostic for protection of circuits
  • The TDA8954TH has zero dead time switching
  • Available with BD modulation in BTL configuration
  • The current switching and quiescent is low
  • Fabricated and consists thermal Fold Black with disable functionality
  • Consists of a smooth pop noise free start-up and switch off functioning

Pinout Configuration of TDA8954TH:

The pinout configuration and pinning information is

Pin Number

Pin name

Pin Description

Pin 1

VSSA

negative analog supply voltage

Pin 2

SGND

signal ground

Pin 3

VDDA

positive analog supply voltage

Pin 4

IN2M

channel 2 negative audio input

Pin 5

IN2P

channel 2 positive audio input

Pin 6

MODE

Termed to mute or operating mode

Pin 7

OSC

oscillator frequency adjustment or tracking input

Pin 8

IN1P

channel 1 positive audio input

Pin 9

IN1M

channel 1 negative audio input

Pin 10

DIAG1

diagnostic output 1 (open drain; TFB)

Pin 11

OSCREF

reference for OSC pin

Pin 12

DIAG2

diagnostic output 2 (open drain; protection function)

Pin 13

PROT

decoupling capacitor for protection (OCP)

Pin 14

VDDP1

channel 1 positive power supply voltage

Pin 15

BOOT1

channel 1 bootstrap capacitor

Pin 16

OUT1

channel 1 PWM output

Pin 17

VSSP1

channel 1 negative power supply voltage

Pin 18

STABI

decoupling of internal stabilizer for logic supply

Pin 19

n.c.

not connected

Pin 20

VSSP2

channel 2 negative power supply voltage

Pin 21

OUT2

channel 2 PWM output

Pin 22

Pin 23

BOOT2

VDDP2

channel 2 bootstrap capacitor

channel 2 positive power supply voltage

Pin 24

VSSA

negative analog supply voltage

Applications: 

  • Used in Home Theatre system system box extension
  • Application in mini and micro receiver system
  • DVD, subwoofers power systems
  • Public address power system
  • High power speaker system 

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