The A19302 is an optimized Hall-effect integrated circuit (IC)

with the option for PW- or AK-protocol two-wire interface,

ideal for applications requiring 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 provides highly

accurate speed and rotational direction detection. The intelligent

algorithms provide signal optimization and compensation

capable of maintaining stable operation in the harsh automotive

environments common to wheel speed applications.

The A19302 was developed in accordance with ISO 26262

as a hardware safety element out of context with ASIL B(D)

capability for use in automotive safety-related systems when

integrated and used in the manner prescribed in the applicable

safety manual and datasheet.

Integrated EEPROM memory allows traceability of the device

throughout the product lifecycle.

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.

A19302-DS, Rev. 5

MCO-0000789

• Hall-effect technology allows ease of use for ring

magnet and ferromagnetic target sensing

• 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

• ISO 26262 ASIL B(D) with integrated diagnostics

and certified safety design process

• EEPROM enables traceability throughout the product

life cycle

High-Accuracy, Pulse-Width or AK Protocol

Hall-Effect Wheel Speed and Direction Sensor IC

Figure 1: Functional Block Diagram

A19302

Oscillator

EEPROM

Digital

Controller

L-C

Output

Regulator

VCC

ADC

ADC

C-R

VCC

GND

ESD

Output

Current

Generator

FEATURES AND BENEFITS

DESCRIPTION

December 9, 2021

PACKAGE:

Not to scale

2-Pin SIP

(suffix UB)

2

-