TDA2051 is a monolithic integrated circuit for audio class AB amplifier. It has features of high output power, high operating voltage, low distortion, and short circuit protection, making it suitable for Hi-Fi applications.
The TDA2051 is a monolithic integrated circuit in a Pentawatt package designed for Hi‑Fi audio applications. It can deliver up to 40 W typical into a 4 Ω load at 1 kHz with THD ≤10% when powered from +18 V, and up to 33 W into an 8 Ω load at +22 V.
The device includes several protection features such as short‑circuit protection (output to ground) and thermal shutdown. Its low external component count and efficient heat‑sink design make it suitable for compact stereo equipment.
| Typical Output Power (4 Ω) | 40 W |
|---|---|
| Typical Output Power (8 Ω) | 33 W |
| Supply Voltage Range | Up to 425 V |
| Distortion | Very low (THD ≤10%) |
| Protection | Short‑circuit and thermal shutdown |
It delivers about 40 W typical into a 4 Ω load at 1 kHz with THD ≤10% when powered from +18 V.
The IC includes short‑circuit protection (output to ground) and thermal shutdown to protect against overload.