Infineon Technologies TLE4966V1GHTSA1

Summary of TLE4966V1GHTSA1 Hall Effect Latch from Infineon Technologies

The TLE4966V1GHTSA1 is an integrated Hall effect latch designed by Infineon Technologies to deliver robust magnetic field detection with precise direction and speed output. Packaged in the compact PG-TSOP6-6-9 SMD outline, this device provides advanced in-plane sensing capabilities, making it especially suitable for modern automotive applications where parallel mounting and space-saving architectures are prioritized. As part of the TLE4966 series, TLE4966V1GHTSA1 supports functional safety and high environmental requirements, conforming to AEC-Q100 and RoHS 3 standards, and is optimized for use under harsh automotive operating conditions.

Main Characteristics of TLE4966V1GHTSA1

TLE4966V1GHTSA1 brings together a range of technical advantages essential for product selection engineers:

In-plane (vertical dual Hall) sensing for mounting parallel to a magnetic encoder or target wheel

Direction and speed signal outputs, enabling precise index counting and rotation analysis

Wide supply voltage operation from 3.5V to 32V, with capability to function on unregulated supply lines

Integrated reverse polarity protection (up to -18V) and over-voltage tolerance up to 42V

Output stage includes over-current and over-temperature shutdown protection

Low current consumption and minimal magnetic threshold drift, supporting efficiency and reliability in automotive power systems

Advanced active error compensation circuitry to minimize effects from mechanical stress, package molding, and temperature variations

Low jitter performance, typically 0.3µs, ensuring high accuracy in timing-critical detection scenarios

Working Principle of TLE4966V1GHTSA1

The TLE4966V1GHTSA1 utilizes a sophisticated dual Hall sensor arrangement to detect changes in magnetic field parallel to its mounting surface (“in-plane”). This architecture allows accurate sensing of rotational speed and direction of pole wheels or magnetic encoders placed next to the sensor—an essential requirement for systems such as electric window lifters, automotive power closing mechanisms, and other position feedback or index counting applications.

Internally, the device’s chopped Hall IC design features temperature-compensated bias generation and compensation circuits. Chopping technology reduces signal offsets and neutralizes variations arising from package stress, soldering, or ambient temperature changes, leading to stable thresholds and precise signal generation across its operating range.

Pin Assignment and Packaging Information for TLE4966V1GHTSA1

The TLE4966V1GHTSA1 is housed in the 6-pin PG-TSOP6-6-9 SMD package, with optimized placement of Hall elements (distance d = 1.25mm, centered within the package) for dependable direction detection and minimal impact from mechanical stress. Standard pinouts feature dedicated outputs for direction and speed, ground, and supply, simplifying PCB routing in typical design scenarios. The component’s footprint is ideal for high-density automotive control PCBs where robust performance must be paired with minimal board area.

Electrical and Magnetic Performance Specifications for TLE4966V1GHTSA1

Key electrical characteristics of the TLE4966V1GHTSA1 include:

Absolute maximum supply voltage: up to 42V, with functional operation guaranteed between 3.5V and 32V

Maximum output current (Iq): 10mA, with recommended external limiting resistor based on application supply voltage

Output saturation voltage (Vqsat): <0.5V under typical 10mA sink current

Power dissipation: calculation should consider system voltage and load current—e.g., at 12V and 10mA, total dissipation is around 130mW

ESD robustness validated according to EIA/JESD22-A114 and ISO 10605 automotive standards

Magnetically, the TLE4966V1GHTSA1 provides:

Defined operate (Bop) and release (Brp) thresholds, with minimal drift over temperature

Hysteresis (Bhys = Bop – Brp) providing immunity against signal noise

Accurate direction and speed output generation, suitable for high-speed rotating signals (with considerations for filter corner frequency at high switching applications)

Circuit Applications and Integration Guidelines for TLE4966V1GHTSA1

Integration into application hardware is straightforward, primarily requiring a pull-up resistor to match system voltage and output current requirements (e.g., for Vs = 12V and Iq = 10mA, a 1.2kΩ resistor is typical). Enhanced robustness can be achieved through optional ESD diodes at output pins and a 47nF supply bypass capacitor for system-level transient protection—major advantages in noisy automotive environments.

Timing Characteristics and Signal Output Details of TLE4966V1GHTSA1

TLE4966V1GHTSA1 generates two main output signals:

Speed output (Q2): Switches between high and low states based on threshold magnetic field transitions, suitable for direct interfacing with control logic for index/counting applications

Direction output (Q1): Logic state indicates rotation direction, determined via internal processing—essential for systems needing differentiation between clockwise/counter-clockwise motion

The device’s start-up logic initializes both outputs (Q1, Q2) high (OFF) and latches direction based on first valid threshold crossing, ensuring robust operation even in ambiguous field conditions at power-on. Low output signal jitter (≤0.3µs typical) enables integration into high-speed interface and closed-loop control systems.

Environmental Standards, Protection Features, and Compatibility of TLE4966V1GHTSA1

Infineon’s TLE4966V1GHTSA1 complies with current environmental and safety standards: RoHS3 compliant, AEC-Q100 qualified, and REACH unaffected. Electrostatic discharge (ESD) resilience, reverse/battery misconnection immunity, and load dump protection up to 42V further extend the suitability of TLE4966V1GHTSA1 for automotive and industrial control applications exposed to harsh electrical environments.

Alternative or Substitute Models for TLE4966V1GHTSA1

For engineers needing alternatives with similar feature sets, potential equivalent or replacement Hall effect latch models should also provide:

In-plane or vertical dual Hall sensing

Automotive-grade quality (AEC-Q100)

Speed and direction output signals

Wide supply voltage operation and high ESD/voltage robustness

Within Infineon’s own portfolio, close relatives may include other TLE4966 series variants. Additionally, engineers may evaluate comparable Hall effect latch ICs from manufacturers such as Allegro Microsystems or Melexis, focusing on those supporting in-plane field detection, automotive qualification, and similar packaging (TSOP-6 or equivalent). Careful comparison of magnetic performance, protection features, and package footprint is advised for form/fit/function compatibility.

Conclusion

TLE4966V1GHTSA1 by Infineon Technologies offers product selection and procurement engineers a highly specialized Hall effect latch optimized for in-plane magnetic detection in automotive index counting and rotation sensing environments. Featuring advanced error compensation, robust protection mechanisms, and dual output functionality—all packaged in an industry-standard TSOP6—the TLE4966V1GHTSA1 stands out as a premier choice for reliable, compact, and cost-effective magnetic encoder interfaces in demanding automotive and industrial control ecosystems.