TLE4929x Crankshaft Sensor - TLE4959x Transmission Sensor Fully programmable sensor TLE4929C/TLE4959x This user manual is intended to provide system know-how and practical guidance beyond the information found in the datasheet. It shows a variety of features available in the TLE4929C/TLE4959C/TLE4959-5U already implemented for your application. For details on the exhaustive feature set, see the datasheet and the EEPROM programming manual. This document focuses on system integration and a variety of tools for evaluation purposes. Table 1 User-manual is valid for all types of TLE4929C/TLE4959x Type Description TLE4929C-XAN-M28 locked EEPROM, temperature-compensated for Neodymium back-bias magnet / toothed wheel application, Vdd-capacitor = 220nF, tin-plating on the leads TLE4929C-XAF-M28 unlocked EEPROM, temperature-compensated for Ferrite pole-wheel / magnetic encoder wheel application (pre-programmed), Vdd-capacitor = 220nF, tin-plating on the leads TLE4929C-XHA-M18N unlocked EEPROM, temperature-compensated for -825ppm magnetic material, Vdd-capacitor = 100nF, nickel plating on the leads TLE4929C-XHA-M38N unlocked EEPROM, temperature-compensated for -825ppm magnetic material, Vdd-capacitor = 470nF, nickel plating on the leads TLE4929C-XVA-M18AA unlocked EEPROM, temperature-compensated for -825ppm magnetic material, Vdd-capacitor = 100nF, tin-plating on the leads TLE4929C-XVA-M38AA unlocked EEPROM, temperature-compensated for -825ppm magnetic material, Vdd-capacitor = 470nF, tin-plating on the leads TLE4929C-XVA-M18NA unlocked EEPROM, temperature-compensated for -825ppm magnetic material, Vdd-capacitor = 100nF, nickel-plating on the leads TLE4929C-XVA-M38NA unlocked EEPROM, temperature-compensated for -825ppm magnetic material, Vdd-capacitor = 470nF, nickel-plating on the leads TLE4929C-X2A-M38N preprogrammed crankshaft sensor for 2-wheeler application, temperature- compensated for -825ppm magnetic material, Vdd-capacitor = 470nF, nickel plating on the leads TLE4959C locked EEPROM, temperature compensated for -600ppm magnetic material, Vdd- capacitor = 220nF, tin-plating on the leads TLE4959C-FX unlocked EEPROM, temperature compensated for -600ppm magnetic material, Vdd-capacitor = 220nF, tin-plating on the leads TLE4959-5U locked EEPROM, temperature compensated for -800ppm magnetic material, 4 pin package PG-SSO-4-1, tin-plating on the leads TLE4959-5U-FX unlocked EEPROM, temperature compensated for -800ppm magnetic material, 4 pin package PG-SSO-4-1, tin-plating on the leads User Manual Please read the Important Notice and Warnings at the end of this document V1.2 www.infineon.com 2020-11-17 TLE4929x Crankshaft Sensor - TLE4959x Transmission Sensor Fully programmable sensor Table of contents Table of contents Table of contents . 2 1 Introduction to speed sensing . .4 1.1 Introduction to magnet circuit design . 4 2 Application . .5 2.1 Magnetic encoder wheel . 5 2.2 Air gap . .5 2.3 Frequency-range . 6 2.4 Phase accuracy . .7 2.5 Jitter / Repeatability . 7 2.6 Delay-time . 8 2.7 Rotational vibration of the shaft (Crankshaft applicaiton) . 9 2.8 Watchdog to handle non standard application situation . .10 2.8.1 System-Watchdog . 10 2.8.2 Stop-Start-Watchdog (Crankshaft application) . 10 2.8.3 Time-Watchdog . 11 2.9 Stop-Start capability (Crankshaft application) . 11 2.9.1 Dedicated design in the TLE4929C family (Crankshaft application) . .11 2.9.2 Temperature compensation of magnetic material . .12 2.9.3 Measurement on system-test bench (Crankshaft application) . 13 2.10 Types of output-protocol . 14 2.10.1 Crankshaft-protocol without direction detection . .15 2.10.2 Crankshaft-protocol with direction detection . 15 2.10.3 Double accuracy protocol . 15 3 Integration into system . 17 3.1 Back-Bias-Magnet . 17 3.2 Magnetic parameter . 18 3.2.1 Frequency range . .18 3.2.2 Dynamic range of the magnetic field of the differential speed channel . 18 3.2.3 Dynamic range of the magnetic field of the direction channel . 18 3.2.4 Static range of the magnetic field of the outer Hall probes in back-bias configuration . .18 3.2.5 Static range of the magnetic field of the outer Hall probes in encoder configuration . 18 3.2.6 Static range of the magnetic field of the center Hall probe . 18 3.2.7 Allowed static difference between outer probes . 18 3.2.8 Magnetic differential field amplitude for full performance on stop-start . 19 3.2.9 Magnetic temperature compensation of gain in analog signal path . 19 3.2.10 Compensation of switching threshold over temperature in analog signal path . 19 3.2.11 Not compensated air gap drift . 20 User Manual 2 V1.2 2020-11-17 TLE4929x Crankshaft Sensor - TLE4959x Transmission Sensor Fully programmable sensor Table of contents 3.3 Displacement . 21 3.3.1 Module displaced towards toothed wheel . 21 3.3.2 Magnet displaced towards sensing elements . 22 3.4 Adjust the proper k-factor . 22 3.5 Adjust the proper offset update algorithm . 24 3.6 When to enable the HYBRID watchdog . .26 4 Evaluation tool . 29 4.1 PGSISI2 and TLE4929C/TLE4959x-daughter-board . 29 4.2 Digital diagnosis interface . 29 4.3 GUI (Graphical User Interface) . 31 4.4 Establish contact with TLE4929C/TLE4959x . 31 4.4.1 Read and write EEPROM . .32 4.4.2 Read and store internal signals . .33 5 Assessment-tool “iMAT” . 36 5.1 Maximum air gap assessment . .37 5.2 Minimum air gap assessment . 38 5.3 Maximum runout acceptance / Bent tooth detection . 38 5.4 Phase accuracy . .39 6 Compatibility to magnetic speed sensors based on a voltage interface . 40 7 Frequently Asked Questions ..