Infineon TLE5501 Series User Manual

User’s Manual 1 Rev. 1.0
www.infineon.com/sensors 2019-04-29
TLE5501
TMR-Based Angle Sensor
User’s Manual
About this document
Scope and purpose
This document covers the TMR angle sensor TLE5501 with its versions E0001 and E0002.
Intended audience
This document is aimed at experienced hardware and software engineers using the TLE5501 angle
sensor

Infineon TLE5501 Series Specifications

General

Brand	Infineon
Model	TLE5501 Series
Category	Accessories
Language	English

Summary

Document Introduction

Scope and Purpose

This document covers the TMR angle sensor TLE5501, including versions E0001 and E0002.

Intended Audience

This guide is for experienced hardware and software engineers using the TLE5501 angle sensor.

TLE5501 Application Circuits

Circuit Connection Examples

Demonstrates TLE5501 connection possibilities in single-ended and differential modes with diagrams.

TLE5501 Transient Behavior

TMR Bridge Bandwidth and Filtering

Analyzes how the TMR bridge and buffer capacitor form a low-pass filter, affecting bandwidth and response time.

External Capacitor Selection for Transient Response

Guidance on choosing an external buffer capacitor Cb to manage phase shift and transient behavior.

Connecting TLE5501 to Microcontrollers

Sigma-Delta ADC Interface

Discusses using Sigma-Delta ADCs, their suitability for high impedance sources, and synchronization needs.

SAR ADC Interface

Details the SAR ADC interface, including sample/hold circuits, sampling frequency, and resolution.

Managing Load Steps in ADC Sampling

Explains the voltage drop during ADC sampling and the impact on settling time for SAR ADCs.

Reducing Load Step Impact with Capacitors

Strategies for minimizing load step voltage drops by adjusting buffer capacitor values for ADC sampling.

Oversampling for Enhanced Resolution

Explores oversampling techniques to improve resolution, considering sampling time and conversion time constraints.

TLE5501 Calibration and Magnetic Field

System-Level Calibration Requirements

Addresses offset, amplitude mismatch, and orthogonality errors requiring system-level calibration.

Magnetic Field and Temperature Considerations

Details how magnetic field strength and temperature affect sensor performance and calibration.

Maintaining Calibration Over Lifetime

Ensures magnetic field stability within specified limits to maintain calibration accuracy throughout the product's life.

Document Revision History

Revision Log Details

Provides a record of document revisions, including version numbers and release dates.