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- 2026-09-28
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Haierxi HEX473 Hall Switch Datasheet
The HEX473 Hall switch integrates a mixed‑signal CMOS Hall sensor with a built‑in clock generator that periodically wakes the device to sample the magnetic field and returns to a low‑power sleep state when idle. This architecture provides accurate magnetic switching points while minimizing current consumption, making it suitable for battery‑powered applications.
The device is supplied in a TSOT‑23 package (also available in TO‑92) with detailed pin definitions, absolute maximum ratings, electrical and magnetic characteristics, and ESD protection guidelines. Typical specifications include a supply voltage range of 1.65 V to 5.5 V, wake‑up time of 33 ms, and magnetic switching thresholds around ±45 Gauss. This manual is written in Chinese.
Covers: Function Overview · Pin Definition · Absolute Maximum Ratings · Electrical Characteristics · Magnetic Characteristics · ESD Protection
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Haierxi HEX473 Hall Switch Datasheet
Datasheet 6 pages · 552 KB · ZHThe HEX473 is a low‑power, full‑polarity CMOS Hall effect switch with an internal clock for wake‑up and sleep modes.
Which document do I need?
Datasheet
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in Haierxi manuals
What is the operating voltage range of the HEX473?
The HEX473 operates from 1.65 V up to 5.5 V, with a typical value of 3 V.
What magnetic field strength triggers the switch on and off?
The switch turns on when the magnetic flux density exceeds about ±45 Gauss (Bop) and turns off when it falls below about ±15 Gauss (BRp).