The A1180, A1181, A1182, and A1183 devices are sensitive, two-wire, unipolar, Hall effect switches. They feature on-chip protection, supply transient protection, reverse-battery protection, an on-board voltage regulator, and operate in the voltage range of 3.5V to 24V. They utilize chopper stabilization, exhibit low switchpoint drift over the operating temperature range, and have low stress sensitivity. They can be field-programmed to optimize switchpoints.
This document describes the A1180, A1181, A1182, and A1183 devices, which are sensitive, two-wire, unipolar Hall effect switches. These devices utilize a patented chopper-stabilization technique to achieve magnetic stability and eliminate offsets inherent in single-element devices. They are designed for automotive applications such as sensing seat track position, seat belt buckle presence, hood/trunk latching, and shift selector position.
| Chopping Frequency | 200 kHz |
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The devices operate with a supply voltage between 3.5 V and 24 V.
The maximum junction temperature is 170°C.