Showing posts with label 2x15W. Show all posts
Showing posts with label 2x15W. Show all posts

9/29/2014

2 x 15 W stereo Bridge Tied Load (BTL) audio amplifier

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General description:
The TDA8946J is a dual-channel audio power amplifier with an output power of 2 × 15 W at an 8 Ω load and a 18 V supply. The circuit contains two Bridge Tied Load (BTL) amplifiers with an all-NPN output stage and standby/mute logic. The TDA8946J comes in a 17-pin DIL-bent-SIL (DBS) power package. The TDA8946J is printed-circuit board (PCB) compatible with all other types in the TDA894x family. One PCB footprint accommodates both the mono and the stereo products.

Features:

  • Few external components
  • Fixed gain
  • Standby and mute mode
  • No on/off switching plops
  • Low standby current
  • High supply voltage ripple rejection
  • Outputs short-circuit protected to ground, supply and across the load
  • Thermally protected
  • Printed-circuit board compatible
Circuit Diagram:
Circuit Diagram for 2 x 15 W stereo Bridge Tied Load (BTL) audio amplifier
PCB layout:
PCB layout TDA8946

Datasheet for TDA8946J: Download
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9/02/2014

15W x 2Ch Low Frequency Power Amplifier Circuit for TV

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Block Diagram for AN5275:
15W x 2Ch Low Frequency Power Amplifier Circuit for TV


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8/13/2014

TDA8932B Class-D audio amplifier

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General description

The TDA8932B is a high efficiency class-D amplifier with low power dissipation. The continuous time output power is 2 × 15 W in stereo half-bridge application (RL = 4 Ω) or 1 × 30 W in mono full-bridge application (RL = 8 Ω). Due to the low power dissipation the device can be used without any external heat sink when playing music. Due to the implementation of thermal foldback, even for high supply voltages and/or lower load impedances, the device continues to operate with considerable music output power without the need for an external heat sink. The device has two full-differential inputs driving two independent outputs. It can be used in a mono full-bridge configuration (BTL) or in a stereo half-bridge configuration (SE).

Features

Operating voltage from 10 V to 36 V asymmetrical or ±5 V to ±18 V symmetrical
Mono-bridged tied load (full-bridge) or stereo single-ended (half-bridge) application
Application without heat sink using thermally enhanced small outline package
High efficiency and low-power dissipation
Thermally protected and thermal foldback
Current limiting to avoid audio holes
Full short-circuit proof across load and to supply lines (using advanced current protection)
Switchable internal or external oscillator (master-slave setting)
No pop noise
Full-differential inputs

Applications

Flat panel television sets
Flat panel monitor sets
Multimedia systems
Wireless speakers
Mini and micro systems
Home sound sets

Circuit Diagram
Circuit diagram for TDA8932B 2 x 15W

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8/06/2014

15+15W DUAL BRIDGE AMPLIFIER TDA7297

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Circuit Diagram
Circuit diagram 15+15W DUAL BRIDGE AMPLIFIER

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