The document describes the TOSHIBA TA8251AH as a 4-channel Bridge-Tied Load (BTL) audio power integrated circuit designed for consumer applications. Key features include a maximum output power of 30W, low distortion ratio, and various built-in protection circuits such as thermal shutdown, over-voltage protection, and short-circuit protection.
The datasheet provides detailed electrical characteristics, including quiescent current, voltage gain, noise voltage, and ripple rejection ratios under specific test conditions. It also outlines application methods for functions like the stand-by switch, muting control, junction temperature detection, and an auxiliary amplifier.
| Max Output Power (Pout) | 30W (Typ.) at Vcc=13.7V, f=1kHz, RL=4Ω |
|---|---|
| Operating Supply Voltage | 9~18V |
| Output Noise Voltage | 0.10 mVrms (Typ.) |
| Mute Attenuation | 70 dB (Typ.) |
The maximum DC supply voltage rating is 25V, while the recommended operating range is 9V to 18V.
Yes, it has a built-in stand-by switch function controlled by Pin 8.
The IC uses Pin 9 to detect temperature, where the DC voltage rises at approximately +10mV/°C.