Hall switches save power in position and proximity detection roles
Six new Hall effect sensor switches have been unveiled by Diodes, all of which have been optimised to save power in position and proximity detection roles in a variety of consumer, home appliance and industrial equipment.
Designed to operate over a supply voltage range from 1.6 to 3.6V and using a hibernating clocking system to minimise power consumption, the switches' average supply current is typically 4.3µA at 1.8V.
The micropower Hall effect product introduction comprises the medium sensitivity AH1895 and high sensitivity AH1893, AH1897 and AH1812 omnipolar switches, the programmable high sensitivity AH1894 omnipolar switch and the AH3360, a high sensitivity unipolar switch.
All of the devices are offered in space saving, low profile X1-DFN1216-4 (1.2 x 1.6 x 0.5mm) and leaded SOT553 (1.6 x 1.6 x 0.5mm) packages.
With the exception of the AH1812, all modules include an internal push-pull output structure, which enables a reduction in external component count and a simplification of pcb layouts.
The AH1812 provides an open-drain output option for added flexibility in system pull-up.
