2 x 40 W car radio power amplifier

FEATURES

Low dissipation due to switching from Single-Ended (SE) to Bridge-Tied Load (BTL) mode

Differential inputs with high Common Mode Rejection Ratio (CMRR)

Mute, standby or operating mode selectable by pin

Load dump protection circuit

Short-circuit safe to ground; to supply voltage and across load

Loudspeaker protection circuit

Thermal protection at high junction temperature

Device switches to single-ended operation at high junction temperature

Clip detection at 2.5 % THD

Diagnostic signal indicating clipping, short-circuit protection and pre-warning of thermal protection.

GENERAL DESCRIPTION

The TDA1565TH is a monolithic power amplifier in a 20-lead heatsink small outline plastic package. It contains two identical 40 W amplifiers. Power dissipation is minimized by switching from SE to BTL mode only when a higher output voltage swing is needed. The device is developed primarily for car radio applications.

Circuit Diagram:

Circuit diagram 2 x 40 W car radio power amplifier

PCB layout:

PCB layout TDA1564 2 x 40 W car radio power amplifier

Comments

One Chip AM/FM Radio with Audio Power Amplifier

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