TDA7241B

TDA7241B 20W BRIDGE AMPLIFIER FOR CAR RADIO VERY LOW STAND-BY CURRENT GAIN = 32dB OUTPUT PROTECTED AGAINST SHORT CIRCUITS TO GROUND AND ACROSS LOAD COMPACT HEPTAWATT PACKAGE DUMP TRANSIENT THERMAL SHUTDOWN LOUDSPEAKER PROTECTION HIGH CURRENT CAPABILITY LOW DISTORTION / LOW NOISE DESCRIPTION The TDA7241B is a 20W bridge audio amplifier IC designed specially for car radio applications. Thanks to the low external part count and compact Heptawatt 7-pin power package the TDA7241B occupies little space on the printed circuit board. Reliable operation is guaranteed by a compreFigure 1: Test and Appliication Circuit Heptawatt ORDERING NUMBER: TDA7241BH hensive array of on-chip protection features. These include protection against AC and DC output short circuits (to ground and across the load), load dump transients, and junction overtemperature. Additionally, the TDA7241B protects the loudspeaker when one output is short-circuited to ground. July 1997 1/7 TDA7241B PIN CONNECTION (Top view) ABSOLUTE MAXIMUM RATINGS Symbol VS VS VS IO IO Ptot Tstg, Tj Operating Supply Voltage DC Supply Voltage Peak Supply Voltage (t = 50ms) Peak Output Current (non repetitive t = 0.1ms) Peak Output Current (repetitive f > 10Hz) Power Dissipation at Tcase = 85°C Storage and Junction Temperature Parameter Value 18 28 40 4.5 3.5 16 -40 to 150 Unit V V V A A W °C THERMAL DATA Symbol Rth j-case Description Thermal Resistance Junction-case Max Value 4 Unit °C/W 2/7 TDA7241B ELECTRICAL CHARACTERISTICS...