The TLE4928(C ) detects the motion and position of ferromagnetic structures (e.g. pole or

gear wheel) by measuring the differential flux density of the magnetic field. A self-calibra-

tion mode ensures optimum accuracy. The sensor only needs a few transitions after start-up

then self-calibration has finished and reached a high-accuracy running mode. TLE4928(C)

is switching at fixed hidden hysteresis, which is combined with a frequent recalibration

function in run mode. This enables the sensor to accurately switch over lifetime (e.g. by run

out events) and perform reliably, even under challenging conditions like vibrations such as

seen in transmission applications.

The sensor combines a fast power up time with high accuracy and sensitivity. Providing a

wide temperature range, high ESD robustness and large EMC resistance the TLE4928(C)

perfectly meets the requirements of harsh environmental conditions, prevalent in automo-

tive applications. The TLE4928(C) comes with the well established PG-SSO package - with

and without two integrated capacitors. With all these features TLE4928(C) is the ideal fitting

Hall based crankshaft and transmission speed sensing solution for today’s automotive

requirements.

TLE4928(C) is Perfectly Suited for Application Using:

Back Bias Magnet

Encoder Wheels

Gear Wheel

Magnet Wheel

N (S)

S (N)

Permanent Magnet

Hall Sensor 2

Hall Sensor 1

Signal

Processing

Circuitry

Signal

Processing

Circuitry

Hall Sensor 2

Hall Sensor 1

www.infineon.com/magnetic-sensors

Features

„

High sensitivity

„

Package options: PG-SSO-3-6 and

PG-SSO-3-9 (2)

„

Single chip solution

„

Symmetrical thresholds

„

High resistance to Piezo effects

„

South and north pole preinduction

possible

„

Low cut-off frequency

„

Advanced performance by dynamic

self calibration principle

„

Frequent recalibration in run mode

„

Fast start-up time

„

Large operating air-gaps

„

Digital output signal

(voltage interface)

„

„

Wide operating temperature range

„

Short-circuit and overtemperature

protection of output

„

Module style package with two

integrated capacitors:

– 4.7nF between Q and GND

for micro cuts in power supply

Product Brief

TLE4928(C)

Highly accurate differential Hall sensor for crankshaft and transmission applications