TA8225H

The TA8225H, TA8225L is a kind of BTL audio power amplifier for consumer application which is designed for high power, low distortion and low noise. It contains various kind of protectors and the function of stand-by SW. In addition, the functions of output short or over voltage detection and junction temperature are involved.

The features of TA8225H can be summarized as (1)high power: POUT1 =45W(typ) (VCC=14.4V, f=1kHz, THD= 10%, RL=2): POUT2 (VCC=13.2V, f=1kHz, THD= 10% RL=2): POUT3 (VCC=13.2V, f=1kHz, THD= 10%, RL=4); (2)low thermal resistance: j-c=1.5°C/W (infinite heat sink); (3)excellent output power band width: POUT(4) =18W (Typ) (VCC=13.2V, f=50Hz~20kHz, THD=1%, RL=4); (4)low distortion ratio: THD=0.015% Z (VCC= 13.2V, f=1kHz, POUT=4W, RL=4); (5)built-in stand-by function (with pin set at high, power is turned ON); (6)built-in output short or over voltage detection circuit, output to VCC an; (7)GND short (Pin : open collector); (8)built-in junction temperature detection circuit (Pin: open collector); (9)built-in various protection circuits: thermal shut down, over voltage, output to GND short, output to VCC short, output to output short; (10)operating supply voltage: VCC(opr)=9~18V.

The absolute maximum ratings of TA8225H are (1)peak supply voltage VCC(surge): 50V; (2)DC Supply voltage VCC(DC): 25V; (3)operating supply voltage VCC(opr): 18V; (4)output current (peak) IO(peak): 9A; (5)power dissipation PD: 50W; (6)operating temperature Topr: -30~85°C; (7)storage temperature Tstg: - 55~150°C.