The Nsiway NNSS44116655 user manual provides specifications, pin descriptions, application circuits, and usage guidelines for the 5 W AB/D dual‑mode mono…
The NNSS44116655 (NS4165) is a 5 W mono audio power amplifier that can operate in AB or D class via a single control pin. It offers high efficiency (over 85 %), low EMI, and built‑in protection such as over‑current, over‑temperature and undervoltage. The chip is supplied in an eSOP‑8 package and works from 3 V to 5.5 V, delivering up to 5 W into a 2 Ω load.
The manual contains functional description, key features, application areas, typical circuits, maximum ratings, electrical characteristics, pin assignments, reference performance graphs, application notes, and package dimensions. It also gives design recommendations for layout, component selection, and test setups. This manual is written in Chinese.
| Maximum Output Power (2 Ω load) | 5 W |
|---|---|
| Maximum Output Power (4 Ω load) | 3.2 W |
| Recommended Supply Voltage | 3 V – 5.5 V |
| Supply Voltage Range (absolute limits) | 2.8 V – 5.8 V |
| Operating Temperature Range | -40 °C – 85 °C |
| Protection Features | Over‑current, over‑temperature, undervoltage, power‑down |
| AB/D Mode Control Pin | Pin 3, high = Class D, low = Class AB |
Set the AB/D pin high to select Class D mode; set it low to select Class AB mode.
The chip can deliver up to 5 W into a 2 Ω load when VDD is 5 V.
It includes over‑current, over‑temperature, undervoltage, and power‑down protection.
The recommended operating voltage range is 3 V to 5.5 V.