Infineon Technologies TLE49663GHTSA1

Overview

TLE49663GHTSA1 from Infineon Technologies is a dual Hall-effect automotive speed and direction sensor IC in PG-TSOP6-6-9 package, operating from 2.7V to 24V supply, with ±1.45mm Hall plate spacing, 1μs typical jitter, and reverse battery protection down to −18V. It delivers independent digital outputs: Q2 for rotational speed (magnetic field threshold-triggered) and Q1 for rotation direction (internally computed), targeting ABS and transmission speed sensing.

For engineers reviewing the TLE49663GHTSA1 datasheet, TLE49663GHTSA1 pinout, TLE49663GHTSA1 application, or TLE49663GHTSA1 equivalent, key selection criteria include magnetic switching point stability over −40°C to 150°C ambient, active error compensation for mechanical stress immunity, dual-output timing alignment, and compatibility with unregulated vehicle battery rails.

Technical Context

The device integrates two chopped Hall probes with matched sensitivity and on-chip chopper stabilization, enabling precise differential field detection. Its internal oscillator drives synchronous biasing and offset cancellation, while dedicated comparator stages with hysteresis generate robust Q1 (direction) and Q2 (speed) outputs without external logic.

Direction detection is derived from phase relationship between the two Hall signals-no external microcontroller or algorithm required. The output stage uses open-drain NMOS transistors with pull-up resistor support, and voltage regulation includes reverse-polarity protection up to −18V.

Key Specifications

Pinout & Package

PG-TSOP6-6-9: 6-pin surface-mount package with exposed thermal pad, 1.27 mm pitch, and footprint per Infineon document AEA03645. Designed for automated reflow assembly and high thermal reliability in under-hood environments.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-output Hall switch applications.

Compared with MLX92292 and TLE4922, the TLE49663GHTSA1 provides fully autonomous direction detection, wider supply range, and built-in reverse polarity protection-reducing BOM count and improving functional safety compliance in ASIL-B systems.

Availability

TLE49663GHTSA1 is available at Aetrix Electronics and suitable for ABS wheel speed sensing, transmission input shaft monitoring, electric power steering motor commutation, and engine crankshaft position feedback requiring stable component supply across automotive production lifecycles.

Supply support for TLE49663GHTSA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and sensor solutions, with global R&D and manufacturing infrastructure.

The TLE49663GHTSA1 belongs to Infineon's TLE49xx family of automotive Hall-effect sensors, engineered specifically for high-reliability rotational sensing in safety-critical chassis and powertrain systems.

FAQ

What is the purpose of the three GND pins on TLE49663GHTSA1?

The three GND pins (pins 2, 5, and 6) serve distinct roles: pin 2 is the primary analog ground reference for Hall sensing and bias circuits; pins 5 and 6 provide separate low-impedance return paths for digital output stages and thermal conduction to the PCB. This layout minimizes ground bounce and improves EMC performance in noisy automotive environments.

Does TLE49663GHTSA1 require external pull-up resistors on Q1 and Q2 outputs?

Yes - both Q1 and Q2 are open-drain NMOS outputs and require external pull-up resistors to VDD or a compatible logic rail. Typical values range from 1.2 kΩ to 10 kΩ depending on bus capacitance and rise time requirements; 4.7 kΩ is recommended for standard 12 V automotive applications with ≤100 pF trace capacitance.

Can TLE49663GHTSA1 operate reliably at 150°C ambient temperature?

Yes - the device is qualified for continuous operation at junction temperatures up to 155°C, and its thermal design supports sustained 150°C ambient when mounted on a 2-layer PCB with ≥2 cm² copper pour per GND pin. Derating is not required below 150°C ambient under typical airflow conditions.

How does the internal direction detection logic determine rotation direction?

The direction logic compares the phase relationship between the two internally chopped Hall signals: rising edge of Q2 leading Q1 indicates one direction (e.g., clockwise), while Q1 leading Q2 indicates the opposite. No external timing components or microcontroller intervention is needed - the result is delivered as a static logic level on Q1 synchronized to each Q2 pulse.