Saturday, September 6, 2014
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:
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| Circuit diagram 2 x 40 W car radio power amplifier |
PCB layout:
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| PCB layout TDA1564 2 x 40 W car radio power amplifier |
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