The AP1301/2/4/5 is a single-phase full wave driver for fan motors, suitable for small fans such as CPU cooling fans. It features low switching noise and effective motor drive. All functions, including lock shutdown, automatic restart, rotation detection, and speed indication, are incorporated into one chip. This product is suitable for CPU cooling fans.
The document describes the Anachip AP1301/2/4/5 series, a Single Coil Fan Motor Full Wave Driver designed for CPU cooling fans. The chip integrates functions such as lock shutdown, automatic restart, rotation detection (RD), and speed indication output (FG) into one package.
It is available in two versions: the AP1301/2 heat sink version with higher power dissipation capabilities, and the AP1304/5 standard version. The datasheet provides absolute maximum ratings, electrical characteristics, truth tables for operation modes, performance curves regarding temperature and power dissipation, and detailed package dimensions for the SOP-8L format.
| Operating voltage (Vcc) | 4V to 20V |
|---|---|
| Output current AP1301/2 | 500 mA max |
| Output current AP1304/5 | 350 mA max |
| Operating temperature (Topr) | -30°C to +85°C |
| Package Type | SOP-8L / SOP-8L EP |
The IC activates a lock shutdown function that turns off the output current and automatically restarts once the condition is removed.
The AP1301/2 versions include a heat sink for higher power dissipation (700 mW), whereas AP1304/5 do not have a heat sink.