AmplifierCircuits

Overview: The TB2903HQ is 4-ch BTL audio 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. It is designed to yield low distortion ratio for 4-ch BTL audio power amplifier, built-in standby function, muting function, and various kinds of protectors. Additionally, Off-set detector is built in.  Features  High power output  POUT MAX (1) = 47 W (typ.)  VCC = 14.4 V, f = 1 kHz, JEITA max, RL = 4 Ω)  Built-in standby switch function (pin 4)  Built-in muting function (pin 22)  Built-in Off-set detection function (pin 25)  Thermal shut down, overvoltage, out to GND, out to VCC, out to out short  Operating supply voltage: VCC (opr) = 9~18 V (RL = 4 Ω)  Circuit Diagam: 47 Watt 4-channel Audio Power Circuit Diagram Datasheet for   TB2903HQ:   Download