The A1101-A1104 and A1106 Hall-effect switches are next generation replacements for the popular Allegro 312x and 314x lines of unipolar switches. The A110x family, produced with BiCMOS technology, consists of devices that feature fast power-on time and low-noise operation.
The Allegro A1101‑A1106 family are continuous‑time Hall‑effect switches that combine a voltage regulator, Hall‑voltage generator, amplifier, Schmitt trigger and NMOS output on a single chip. They operate from 3.8 V to 24 V and include extensive protection for automotive and industrial motor‑commutation use.
The devices are offered in ultra‑small 3‑pin SOT23W (LH) and 3‑pin SIP (UA) packages, are lead‑free, and provide fast power‑on times, low noise, and high ESD ratings. Detailed electrical, magnetic, and thermal specifications are provided for design reference.
| Maximum Junction Temperature (Tmax) | 165 °C |
|---|---|
| Package Types | 3‑pin SOT23W (LH) and 3‑pin SIP (UA) |
They are offered in a 3‑pin SOT23W (LH) surface‑mount package and a 3‑pin SIP (UA) through‑hole package.