TLE4998P8(D)

General

Data Sheet

6

Revision 1.1, 2017-01

2

General

All further given specifications are regarded to both implemented sensor IC’s, or otherwise noted.

2.1

Block Diagram

Figure 2-1 shows is a simplified block diagram.

Figure 2-1

Block Diagram of the TLE4998P8(D) with the PWM interface

2.2

Functional Description

The linear Hall IC TLE4998P8(D) has been designed specifically to meet the requirements of highly accurate angle

and position detection.

The sensor provides a digital PWM signal, which is well suited for direct decoding by any unit measuring a duty

cycle of a rectangular signal (usually a timer/capture unit in a microcontroller).

The output stage is an open-drain driver pulling the output pin to low only. Therefore, the high level needs to be

obtained by an external pull-up resistor. This output type has the advantage that the receiver may use an even

lower supply voltage (e.g. 3.3 V). In this case the pull-up resistor must be connected to the given receiver supply.

The IC is produced in BiCMOS technology with high voltage capability and it also has reverse-polarity protection.

Digital signal processing using a 16-bit DSP architecture together with digital temperature and stress

compensation guarantees excellent stability over the whole temperature range and life time.

The PWM output frequency can be selected within the range of 122 Hz up to 1953 Hz.

spinning

HALL

A

D

DSP

A

D

Temp.

Sense

ROM

EEPROM

Interface

OUT

VDD

GND

Supply

TST

Stress

Sense

PWM

Bias