TDA7454

TDA7454 4 x 35W HIGH EFFICIENCY QUAD BRIDGE CAR RADIO AMPLIFIER HIGH OUTPUT POWER CAPABILITY: 4 x 40W/4Ω MAX. 4 x 35W/4Ω EIAJ. 4 x 25W/4Ω @14.4V, 1KHz, 10% 4 x 60W/2Ω MAX. 2Ω DRIVING CAPABILITY DUAL MODE OPERATING EXTERNALLY PRESETTABLE: CONVENTIONAL CLASS AB MODE, HIGH EFFICIENCY MODE LOW EXTERNAL COMPONENTS COUNT: – NO BOOTSTRAP CAPACITORS – NO EXTERNAL COMPENSATION – INTERNALLY FIXED GAIN (26dB) CLIPPING DETECTOR ST-BY FUNCTION (CMOS COMPATIBLE) MUTE FUNCTION (CMOS COMPATIBLE) AUTOMUTE AT MINIMUM SUPPLY VOLTAGE DETECTION LOW RADIATION Protections: OUPUT SHORT CIRCUIT TO GND; TO VS; ACROSS THE LOAD 3 STEPS OVERRATING CHIP TEMPERATURE WITH THERMAL WARNING LOAD DUMP VOLTAGE FORTUITOUS OPEN GND BLOCK & APPLICATION DIAGRAM September 2013 STD/HI- EFF IN RIGHT FRONT 0.22µF 16 11 ST-BY IN RIGHT REAR 0.22µF 4 12 MUTE IN LEFT FRONT IN LEFT REAR CD 0.22µF 22 15 100µF SVR 10 0.22µF 14 25 MULTIPOWER BCD TECHNOLOGY Flexiwatt 25 LOUDSPEAKER DC CURRENT ESD DESCRIPTION The TDA7454 is a new BCD technology QUAD BRIDGE type of car radio amplifier in Flexiwatt25 package specially intended for car radio applications. Among the features, its superior efficiency performance coming from the internal exclusive structure, makes it the most suitable device to simplify the thermal management in high power sets. The dissipated output power under average listening condition is in fact reduced up to 50% when compared to the level provided by conventional class AB solutions. 6 VCC1 20 ...