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Description

The Allegro? A6850 is designed to interface between a microprocessor and a pair of 2-wire Hall effect sensor ICs. The A6850 uses protected high-side low resistance DMOS MOSFETs to switch the supply voltage to the two Hall effect devices. Each switch can be controlled independently via individual ENABLE pins and both switches are protected with current-limiting circuitry. The output switches are rated to operate to 26.5 V and will source at least 25 mA per channel before current limiting.

Features and Benefits

? 4.75 to 26.5 V operation

? Low VIN-to-VOUT voltage drop

? 1/10 current sense feedback

? Survive short-to-battery and short-to-ground faults

? Survive 40 V load dump

? >4 kV ESD rating on the output pins, >2 kV on all other pins

? Output current limiting

? Low operating and Sleep mode currents

? Integrates with Allegro A114x and A118x Hall effect two-wire sensor ICs