El amplificador de clase D de 10 W PAM8106 (ART1476)

Written by: Newton C. Braga
Category: Nuevos Componentes , Industria y Noticias

El amplificador clase D de 10 W PAM8106 de Diodes Incorporated es una solución interesante para aplicaciones en sistemas multimedia, televisores LCD, reproductores de DVD, juegos e instrumentos musicales. Vea en este artículo algunas informaciones importantes sobre su uso.

   Este artículo se basa en la información obtenida en el datasheet del componente al que se puede acceder en: https://br.mouser.com/datasheet/2/115/PAM8106-1323209.pdf . Para su adquisición en Mouser Electronics, acceda al enlace: https://br.mouser.com/ProductDetail/Diodes-Incorporated/PAM8106TVR?qs=55YtniHzbhAlXgu6qPUVFA%3d%3d

   El PAM8106 consiste en un amplificador clase D que puede ser alimentado por tensiones de 4,6 V a 15 V, siendo suministrado en un envoltorio como el mostrado en la figura 1.

 

Figura 1- Envoltorio y pines
Figura 1- Envoltorio y pines

 

   

Con una alimentación de 12 V el amplificador proporciona una potencia de 10 W en carga de 8 ohms. Sin embargo, el circuito también puede excitar cargas de 4 ohmios.

   La eficiencia de este circuito llega al 92% y tiene bajas corrientes de velocidad y características de bajo ruido, además de otras como la supresión del ruido al conectar, que se detallan en el datasheet.

   En la figura 2 tenemos el circuito típico de aplicación.

 

Figura 2 - Circuito de aplicación
Figura 2 - Circuito de aplicación

 

  

La tabla en el datasheet detalla las funciones de todos los pines de este amplificador. El diagrama de bloques de este componente se muestra en la figura 3.

 

 

Figura 3 - Diagrama funcional
Figura 3 - Diagrama funcional

 

 

En la figura 4 tenemos dos curvas de rendimiento de este amplificador para alimentación de 12 y de 15 V. Otras curvas se pueden obtener en la documentación del fabricante.

 

 

Figura 4 - Curvas de rendimiento
Figura 4 - Curvas de rendimiento

 

   

En la figura 5 mostramos dos curvas de respuesta de frecuencia, con familias que dependen de los condensadores usados ​​en la entrada y también la modulación cruzada.

 

 

Figura 5 - Otras curvas
Figura 5 - Otras curvas

 

 

 

pcbway_012_2024

Buscador de Datasheets


N° de Componente 

Banco de Circuitos

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