TA8205AH Datasheet | Toshiba

features due to the temperature rise at the high output can also be reduced. This stereo audio power IC, designed for car audio use, has two built- in channels to reduce the characteristic difference between L and R channels. In addition, the functions of stand- by and muting, and a variety of protection circuits are involved. Features - Low thermal resistance : θj- T = 1.5°C / W (infinite heat sink) - High power : POUT (1) = 18W (typ.) / channel (VCC = 14.4V, f = 1k Hz, THD = 10%, RL = 4Ω) POUT (2) = 15W (typ.) / channel (VCC = 13.2V, f = 1k Hz, THD = 10%, RL = 4Ω) Weight HZIP17- P- 2.00 : 9.8g (typ.) HSIP17- P- 2.00 : 9.8g (typ.) - Low distortion ratio : THD = 0.04% (typ.) (VCC = 13.2V, f = 1k Hz, POUT = 1W, RL = 4Ω, GV = 50d B) - Low noise : VNO = 0.30m Vrms (typ.) (VCC = 13.2V, RL = 4Ω, GV 50d B, Rg = 0Ω, BW = 20Hz~20k Hz) - Built- in stand- by function (with pin(4) set at low, power is turned off.) : ISB = 1µA (typ.) - Built- in muting function (with pin(1) set at low, power is turned off.) : V (mute) = 1V (typ.) - Built- in various protection circuits Protection circuits : Thermal shut down, Over voltage, Out→VCC short, Out→GND short and Out- Out short. - Operating supply voltage : VCC = 9~18V 1 2002-10-30 Block Diagram TA8205AH, TA8205AL (GV = 50d B) TA8205AH / AL Cautions And Application Method (description is made only on the single channel.) 1. Voltage gain adjustment This IC has the amplifier construction as shown in Fig.1. The pre-amp. Amp 1 is provided to the primary stage, and the input voltage is amplified by the flat amps, amp 3 and amp 4 of each channel through the phase amp. Amp 2. Since the input offset is prevented by pre-amp when VCC is set to on, this circuit can remarkably reduce the pop noise. 2 2002-10-30 TA8205AH / AL The total closed loop gain GV of this IC can be obtained by expression below when the closed loop voltage gain of Amp 1 is GV1. GV1 = 20log R1+ (Rf + R2) Rf + R2 (d B) (1) The closed loop voltage gain of power...