概览

- 2.5V to 26V DC operation voltage

- Temperature compensation

- Wide operating voltage range

- Open-Drain pre-driver

- 25mA maximum sinking output current.

- Low Profile TSOT/SOT23-3L and SIP-3L(TO-92S) Package( Green and Lead Free )

SW7021 is an integrated Hall effect latched sensor designed for electronic commutation of brush-less DC motor applications. The device is using HV BCD process includes an on-chip Hall voltage generator for magnetic sensing, a comparator that amplifies the Hall voltage, and a Schmitt trigger to provide switching hysteresis for noise rejection, and open-collector output. An internal band-gap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. If a magnetic flux density larger than threshold Bop, OUT is turned on(low). The output state is held until a magnetic flux density reversal falls below Brp causing OUT to be turned off (high).

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SW7021

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