HWD2161 is a bridge-connected audio power amplifier that uses a 5V power supply and can deliver an average continuous power of 1.1W to an 8Ω load. It has features such as small size, overall gain stability, and compatibility with PC power supplies.
The HWD2161 is a bridge‑connected audio power amplifier designed for low‑power portable systems. It operates from a 5 V supply, delivers up to 1.1 W continuous into an 8 Ω load, and includes an external‑control shutdown mode with internal thermal protection.
The manual details key specifications, electrical characteristics, absolute maximum ratings, typical application circuits, and design guidelines. It also lists recommended external components, gain configuration methods, and example single‑ended and bridged configurations. This manual is written in Chinese.
| Continuous Output Power | 1 W @ 1 kHz into 8 Ω |
|---|---|
| THD+N | 1.0 % (max) @ 1 kHz |
| Supply Voltage (Operating) | 2.0 V – 5.5 V |
| Shutdown Current (ISD) | 0.6 µA (typ), 10 µA (max) |
| Operating Temperature Range | -40 °C to +85 °C |
| Absolute Maximum Supply Voltage | 6.0 V |
| Storage Temperature Range | -65 °C to +150 °C |
The shutdown current is typically 0.6 µA, with a maximum of 10 µA.
It operates from 2.0 V to 5.5 V.
The device delivers up to 1 W continuous output at 1 kHz into an 8 Ω load, with THD+N not exceeding 1.0 %.