The Hall switch is divided into: a unipolar Hall switch, a bipolar latch type Hall switch, a non-polar Hall switch (or a full polarity Hall switch), all of which rely on a magnetic field to trigger a Hall switch to operate. The switching signal is a magnetically sensitive switching element. The following describes the all-polar Hall switch:
An all-polar Hall switch is an SN pole that does not divide the magnetic field. As long as there is a strong north or south pole magnetic field, the Hall switching device can be turned on; in the absence of a magnetic field, the output is turned off. The all-polar Hall switch referred to by Hall Microelectronics refers to a bipolar Hall switch without a latch function.
The market's all-polar Hall switches are available in all-polar low-power Hall switches and all-polar non-low-power Hall switches.
The all-polar low-power Hall switch refers to an average power consumption of 2-10 UA, which can be used for some battery-powered products, such as: flashlight dimming, LED flashlight gear switch, flip phone, slider phone, laptop magnetic control Switches, smart access, smart water meters, smart gas meters, cordless phones, toy products. . . And a practical circuit that does not require high switching frequency. In order to achieve low power consumption, the low-power Hall switch does not meet the requirements of speed measurement, only a few tens of megahertz. Commonly used low power Hall switch models are: HAl148 HAL248 HAL4913 HAL13S HAL Z13S
48101 A3212 A3213, etc.
The most characteristic of the all-polar non-low-power Hall switch is that it does not need to distinguish between the north and south poles of the magnetic field, the energy consumption is in the milliampere level, and the high-frequency switch for speed measurement is realized, and the maximum frequency reaches 30KHZ. The switching frequency can reach the speed of the single pole Hall switch. Commonly used models are: Hal149
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