GENERAL DESCRIPTION

The TDA1564 is a monolithic power amplifier in a 17-lead single-in-line (SIL) plastic power package. It contains two identical 25 W amplifiers. The dissipation is minimized by switching from SE to BTL mode, only when a higher output voltage swing is needed. The device is primarily developed for car radio applications.

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/operating (mode select pin)

• Load dump protection circuit

• Short-circuit safe to ground, to supply voltage and across load

• Loudspeaker protection circuit

• Offset detection for each channel

• Device switches to single-ended operation at excessive junction temperatures

• Thermal protection at high junction temperature (170°C)

• Clip detection at THD = 2.5

• Diagnostic information(clip/protection/prewarning/offset).