TB2903HQ

The TB2903HQ is 4-ch BTL amplifier for car audio applications.This IC can generate higher power:POUT MAX=47 W as it includes the pure complementary P-ch and N-ch DMOS output stage.Additionally,off-set detector is built in.

Features of the TB2903HQ are:(1)high power output;(2)low distortion ratio is THD=0.015%(typ.)(Vcc=13.2V,f=1kHz,POUT=5 W,RL=4 );(3)low noise is VNO=90 Vrms(typ.),(Vcc=13.2V,Rg=0 ,BW=20 Hz to 20kHz,RL=4);(4)built-in standby switch function;(5)control data majority-decision detection;(6)built-in muting function;(7)built-in off-set detection function;(8)built-in various protection circuits:thermal shut down,overvoltage,out to GND,out to Vcc,out to out short;(9)operating supply voltage:Vcc(ops)=9 to 18V(RL=4).

The absolute maximum ratings of the TB2903HQ can be summarized as:(1):the charcteristic is peak supply voltage,the symbol is Vcc,the rating is 50,the unit is V;(2):the charcteristic is DC supply voltage,the symbol is Vcc,the rating is 25,the unit is V;(3):the charcteristic is operation supply voltage,the symbol is Vcc,the rating is 18,the unit is V;(4):the charcteristic is output current (peak),the symbol is IO(peak),the rating is 9,the unit is A;(5):the charcteristic is power dissipation,the symbol is PD,the rating is 125,the unit is W;(6):the charcteristic is operation temperature,the symbol is Topr,the rating is -40 to 85,the unit is ;(7):the charcteristic is storage temperature,the symbol is Tstg,the rating is -55 to 125,the unit is .