Forum Diagram: btl

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Saturday, September 20, 2014

4 × 40 W BTL quad car radio power amplifier

FEATURES:

Requires very few external components

High output power

Low output offset voltage

Fixed gain

Diagnostic facility (distortion, short-circuit and temperature pre-warning)

Good ripple rejection

Mode select switch (operating, mute and standby)

Load dump protection

Short-circuit safe to ground and to VP and across the load

Low power dissipation in any short-circuit condition

Thermally protected

Reverse polarity safe

Electrostatic discharge protection

No switch-on/switch-off plop

Flexible leads

Low thermal resistance

Pin compatible with the TDA8568Q, except for the gain.

GENERAL DESCRIPTION:

The TDA8571J is a integrated class-B output amplifier contained in a 23-lead Single-In-Line (SIL) plastic power package. It contains four amplifiers in a BTL configuration, each with a gain of 34 dB. The output power is 4 × 40 W (EIAJ) into a 4 Ω load.

APPLICATIONS:

Primarily developed for car radio applications

Circuit Diagram:

4 × 40 W BTL quad car radio power amplifier

Sunday, August 31, 2014

TDA1552Q 2 x 22 W BTL stereo car radio power amplifier

GENERAL DESCRIPTION

The TDA1552Q is an integrated class-B output amplifier in a 13-lead single-in-line (SIL) plastic power package. The circuit contains 2 x 22 W amplifiers in Bridge Tied Load (BTL) configuration. The device is primarily developed for car radio applications.

Features

Requires very few external components
High output power
Low offset voltage at outputs
Fixed gain
Good ripple rejection
Mute/stand-by switch
Load dump protection
AC and DC short-circuit-safe to ground and VP
Thermally protected
Reverse polarity safe
Capability to handle high energy on outputs (VP = 0 V)
Protected against electrostatic discharge
No switch-on/switch-off plop
Low thermal resistance
Flexible leads.

Circuit diagram:

Circuit diagram for TDA1552Q 2 x 22 W BTL stereo car radio power amplifier