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Showing posts with the label TDA1565

2 x 40 W car radio power amplifier

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.

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:
PCB layout: