DESCRIPTION
The A19303 is an optimized Hall-effect integrated circuit (IC)
with PW and AK Protocol that provides a user-friendly two-wire
solution for applications where pitch accuracy is important for
the determination of speed and direction of the sensed target. The
small package includes an integrated capacitor and Hall-based
IC in a single overmolded design, with an additional molded
lead-stabilizing bar for robust shipping and ease of assembly.
The IC’s SolidSpeed Digital Architecture offers intelligent
algorithms capable of maintaining stable operation during
dynamic air gap movements. The sophisticated digital controller
provides highly accurate speed and direction information with
vibration detection ideal for ABS applications.
The IC includes built-in EEPROM scratch memory available
for device traceability throughout sensor module production.
The IC is offered in the UB package, which integrates the IC
and a high temperature ceramic capacitor in a single overmolded
SIP package for enhanced EMC performance.
The 2-pin SIP package is lead (Pb) free, with tin leadframe plating.

FEATURES AND BENEFITS
• Hall-effect technology allows ease of use for ring
magnet and ferromagnetic target sensing with backbiased
magnet
• Vibration detection optimized for wheel speed
applications allows for blanking of vibration on vibration
with minimum delay in output recovery
• Digital PW and AK protocol provides speed and
direction information, signal integrity, and functional status
• Integrated capacitor in a single overmolded miniature package provides greater EMC robustness
• SolidSpeed Digital Architecture supports advanced
algorithms, maintaining pitch accuracy during dynamic air gap disturbances
• EEPROM enables traceability throughout the product life cycle