Ολοκληρωμένο TB2904 το οποίο είναι τροφοδοτικό και τελικός ενισχυτής εξόδου.

Maximum Power 43 W BTL ? 4-ch Audio Power IC

Maximum Power 43 W BTL ? 4-ch Audio Power IC The TB2904H (o) is 4-ch BTL audio amplifier for car audio applications. This IC can generate higher power: POUT MAX = 43 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) = 43 W (typ.) P (VCC = 14.4 V, f = 1 kHz, JEITA max, RL = 4 ?) : POUT MAX (2) = 39 W (typ.) (VCC = 13.7 V, f = 1 kHz, JEITA max, RL = 4 ?) : POUT (1) = 26 W (typ.) (VCC = 14.4 V, f = 1 kHz, THD = 10%, RL = 4 ?) : POUT (2) = 23 W (typ.) (VCC = 13.2 V, f = 1 kHz, THD = 10%, RL = 4 ?) • Low distortion ratio: THD = 0.015% (typ.) (VCC = 13.2 V, f = 1 kHz, POUT = 5 W, RL = 4 ?) • Low noise: VNO = 90 µVrms (typ.) (VCC = 13.2 V, Rg = 0 ?, BW = 20 Hz to 20 kHz, RL = 4 ?) • Built-in standby switch function (pin 4) • Built-in muting function (pin 22) • Built-in Off-set detection function (pin 25) • Built-in various protection circuits: Thermal shut down, overvoltage, out to GND, out to VCC, out to out short, speaker burned • Operating supply voltage: VCC (opr) = 9 to 18 V (RL = 4 ?) Note 1: Since this device’s pins have a low withstanding voltage, please handle it with care. Note 2: Install the product correctly. Otherwise, it may result in break down, damage and/or degradation to the product or equipment. Note 3: These protection functions are intended to avoid some output short circuits or other abnormal conditions temporarily. These protect functions do not warrant to prevent the IC from being damaged. In case of the product would be operated with exceeded guaranteed operating ranges, these p