The AP1301/2/4/5 is a single phase full wave drive design, which is suited for small fans (such as CPU cooling fans). The low switching noise and effective motor drive are another advantage. All functions, including lock shutdown, automatic restart, rotation detection (RD), and speed indication output (FG) have been incorporated into one chip.
The AP1301/2/4/5 series is a single‑coil fan motor full‑wave driver designed for small fans such as CPU cooling fans. It integrates functions like lock shutdown, automatic restart, rotation detection (RD) and speed indication (FG) in a single chip.
Key features include a wide operating voltage range, high‑current output options, thermal shutdown protection, and a compact SOP‑8L package. The datasheet lists absolute maximum ratings, electrical characteristics, and performance curves for both heat‑sink and non‑heat‑sink versions.
| Operating voltage (Vcc) | 4V to 20V |
|---|---|
| Output current (AP1301/2) | 500 mA max |
| Output current (AP1304/5) | 350 mA max |
| Operating temperature | -30°C to +85°C |
| Input voltage (Voc) | 20 V |
| Maximum output withstand voltage (Vout) | 20 V |
| RD/FG maximum output current | 5 mA |
| Allowable power dissipation (AP1301/2) | 7000 mW |
| Package type | SOP-8L (Normal / Expose Pad) |
The driver operates from 4 V to 20 V.
The AP1301/2 can deliver up to 500 mA maximum output current.
It is supplied in an SOP‑8L package, available in normal or expose‑pad versions.
It is intended for CPU cooling fans and similar small fan applications.