Allegro MicroSystems A1174
The device has a single push-pull output structure and requires no external pull-up resistor for reliable operation. When a sufficient positive magnetic field is present on the device, the device output transitions to the low state and is latched in this state until a negative field of sufficient strength latches the device output into the high state.APPLICATIONS
FEATURES AND BENEFITS
● Micro-power latch operation● 1.65 to 3.5 V battery operation
● Push-pull output eliminates the need for an external pull- up resistor
● User configured, internally or externally controlled sample and sleep periods ▫ Floating the two clock pins results in the use of a fixed sampling clock internal to the device ▫ Toggling the clock pins allows the user to control the sampling and sleep times of the device for extreme low power operation
● External control of the clock pins allows the user to implement synchronous sampling of multiple sensors in direction detection systems
● Chopper stabilization ▫ Superior temperature stability ▫ Extremely low switchpoint drift ▫ Insensitive to physical stress
● Solid state reliability
● Small size Package: 6-contact MLP/DFN (suffix EW) 1.5 mm × 2 mm × 0.40 mm
DESCRIPTION
TheA1174 is a micro-power, Hall-effect latch for use in portable devices that employ rotational detection systems, and have a power supply voltage between 1.65 and 3.5 V.