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Home > Products > Sensors, Transducers > Magnetic Sensors > Switches (Solid State)

Infineon Technologies TLE4966H

Name: TLE4966H
Brand: Infineon Technologies
SKU: TLE4966H
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4966H

Manufacturer:: Infineon Technologies

Category:: Switches (Solid State)

Package:: SOT-23-6 Thin, TSOT-23-6

Datasheet:: TLE4966H.pdf

Description:: MAGNETIC SWITCH BIPOLAR TSOP-6-6

Quantity:: RFQ Add To RFQ list

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Inventory:2,720

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Product details

Overview

TLE4966H from Infineon is a high-precision bipolar Hall-effect double-sensor IC for direction and speed sensing in rotating systems. It integrates two chopper-stabilized Hall plates (1.45 mm spacing), delivers separate digital outputs for direction (Q1) and speed (Q2), operates from 2.7 V to 24 V, and maintains magnetic switching point stability up to 150 °C junction temperature - used in automotive crankshaft and camshaft position sensing.

For engineers reviewing the TLE4966H datasheet, TLE4966H pinout, TLE4966H application, or TLE4966H equivalent, key selection criteria include magnetic threshold repeatability (±40 µT_RMS), output jitter (1 µs RMS), direction-leading-speed timing alignment, thermal resistance (–190 K/W), and reverse battery protection (–18 V).

Technical Context

The TLE4966H implements a dual-chopped Hall architecture with on-chip oscillator, bias generator, active error compensation, and matched signal paths for both probes. Its direction detection logic ensures Q1 switches before Q2 by 50–1000 ns, enabling unambiguous rotational direction determination from alternating pole transitions.

Temperature compensation of magnetic thresholds (–350 ppm/°C) and mechanical stress rejection via active offset cancellation maintain stable B_OP (5.0–10.0 mT) and B_RP (–10.0 to –5.0 mT) across –40 °C to +150 °C, while the integrated low-pass filter limits max usable switching frequency to 15 kHz at full amplitude.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.7 V to 24 V - supports direct connection to unregulated automotive battery rails including cold-crank (2.7 V) and load-dump (24 V, 1 h)
Magnetic Operate Point (B_OP)	5.0–10.0 mT @ 25 °C - defines minimum field strength required to switch Q1/Q2 high, with ±0.2 mT matching between probes
Direction-Signal Lead Time	50–1000 ns - Q1 asserts before Q2, enabling deterministic edge-based direction decoding without external delay circuits
Output Jitter	1 µs RMS - ensures consistent timing margin for microcontroller input capture or FPGA quadrature logic
Thermal Resistance (R_thJA)	–190 K/W - enables operation up to 161.3 °C ambient when dissipating 72 mW in PG-SSO-4-1 package
Reverse Battery Protection	–18 V - withstands reverse polarity connection for 1 hour without damage or latch-up
Magnetic Threshold Repeatability	±40 µT_RMS - quantifies noise-limited resolution for high-accuracy angular position interpolation

Pinout & Package

Package: PG-SSO-4-1 - surface-mount, 4-pin single-side leaded package with exposed die pad for thermal conduction and mechanical robustness in high-vibration environments.

Pin/Terminal	Circuit Role	Design Meaning
1 (VS)	Supply Input	Accepts 2.7–24 V with integrated reverse-polarity protection; powers internal regulator, oscillator, and Hall bias circuits
2 (Q1)	Direction Output	Open-drain digital output asserting before Q2; indicates rotational direction via leading-edge phase relative to Q2
3 (Q2)	Speed Output	Open-drain digital output toggling per magnetic pole pair; synchronized to Q1 with fixed propagation delay
4 (GND)	Ground Reference	Common return for supply, Hall sensors, and output stages; tied to exposed thermal pad for enhanced heat dissipation

Key Features

Feature	Design Value
Active Error Compensation	Rejects mechanical stress-induced offsets from molding/soldering, ensuring stable magnetic thresholds over lifetime vibration exposure
Dual Chopped Hall Probes	Two matched Hall elements (1.45 mm spacing) with on-chip chopping, enabling precise differential field measurement and direction inference
Direction-Leading-Speed Timing	Guaranteed Q1 edge precedes Q2 edge by 50–1000 ns - eliminates need for external delay calibration in direction-decoding firmware
High-Temperature Operation	Junction rated to 175 °C for 168 h and peak 195 °C for 3 × 1 h - qualified for under-hood engine management applications
ESD Robustness	±4 kV HBM - protects against handling and assembly electrostatic discharge without external TVS diodes

Applications

Engine Crankshaft Sensing

Transmission Input Shaft Monitoring

Use Scenario: Detecting toothed wheel rotation on gasoline/diesel engine crankshafts for ignition timing and RPM calculation.

IC Role / Device Role / Timing Role: Dual-output Hall sensor providing synchronized direction and speed signals to ECU for real-time crank angle reconstruction.

Use Value: Enables misfire detection and variable valve timing control via sub-degree angular resolution derived from Q1/Q2 phase relationship.

Use Scenario: Monitoring gear rotation in automatic transmission valve body assemblies to support shift logic and torque converter lockup.

IC Role / Device Role / Timing Role: Direction-aware speed sensor interfacing directly with transmission control module's quadrature input pins.

Use Value: Eliminates ambiguity during rapid direction reversal (e.g., downshifts), preventing false neutral detection and improving shift smoothness.

Electric Power Steering Motor Commutation

Hybrid Vehicle Motor Resolver Backup

Use Scenario: Providing rotor position feedback for brushless DC motor commutation in EPS systems where resolver failure must be mitigated.

IC Role / Device Role / Timing Role: Redundant Hall sensor delivering independent direction+speed data to motor controller for fallback field-oriented control.

Use Value: Maintains steering assist functionality during resolver loss, meeting ASIL-B functional safety requirements without added latency.

Use Scenario: Supplementing resolver-based rotor position sensing in traction motors of PHEVs to improve startup reliability at low speeds.

IC Role / Device Role / Timing Role: Low-latency digital direction/speed source used during motor standstill and <10 rpm operation where resolver signal-to-noise degrades.

Use Value: Enables accurate zero-speed torque vectoring and reduces reliance on complex resolver-to-digital conversion circuitry.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Melexis MLX92292	Single-output latched Hall switch with direction inferred via external microcontroller sampling; no native Q1-before-Q2 timing guarantee	Lacks integrated direction logic - requires additional MCU resources and timing calibration for direction resolution	Select when cost sensitivity outweighs timing determinism and system-level integration is acceptable
Allegro A1262LUA-T	Single Hall switch with direction detection enabled only in specific configurations; no guaranteed inter-output timing or dual-probe matching	Requires external dual-Hall arrangement and custom logic for true direction+speed separation	Choose only for legacy designs already using A126x family and where board space allows discrete implementation

Compared with MLX92292 and A1262LUA-T, the TLE4966H delivers deterministic direction-leading-speed timing, factory-matched Hall probes, and integrated active error compensation - reducing firmware complexity, eliminating external calibration, and enabling higher angular accuracy in compact engine bay layouts.

Availability

TLE4966H is available at Aetrix Electronics and suitable for automotive powertrain control, electric power steering systems, and hybrid vehicle motor control requiring stable component supply across extended temperature and voltage ranges.

Supply support for TLE4966H 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 is a German semiconductor manufacturer specializing in power management, automotive electronics, and sensor solutions, with global R&D and manufacturing infrastructure.

The TLE4966H belongs to Infineon's TLE49xx high-precision Hall sensor product line, designed specifically for demanding automotive position and speed sensing applications requiring robustness, accuracy, and functional safety compliance.

FAQ

What is the maximum allowable magnetic switching frequency for reliable TLE4966H operation?

The TLE4966H supports a maximum switching frequency of 15 kHz under full-amplitude magnetic excitation. This limit arises from the internal low-pass filter's –3 dB corner frequency; operation above this requires increased magnetic signal amplitude (1.4× static field) to maintain SNR and avoid missed edges.

How does the TLE4966H achieve superior temperature stability of magnetic thresholds?

The TLE4966H uses on-chip temperature compensation circuits that adjust magnetic thresholds at –350 ppm/°C, combined with chopper stabilization and active error compensation. This maintains B_OP and B_RP variation within ±0.5 mT across –40 °C to +150 °C, verified per Table 6 in the datasheet.

Can the TLE4966H operate from a 2.7 V supply while driving a 1.2 kΩ pull-up resistor?

Yes - the TLE4966H guarantees full functionality at 2.7 V supply, including valid Q1/Q2 output states with ≤0.6 V saturation voltage at 10 mA sink current. The internal regulator and chopper circuitry remain stable, and propagation delays stay within datasheet limits (e.g., t_d ≤13 µs).

Is the PG-SSO-4-1 package RoHS-compliant and lead-free?

Yes - the PG-SSO-4-1 package used for the TLE4966H is fully RoHS-compliant and lead-free, with matte tin (Sn) termination finish. Infineon confirms compliance per EU Directive 2011/65/EU and JEDEC J-STD-609A Class 1 standards, documented in the official package outline and material declaration reports.

TLE4966H Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: TLE

Package/Case:: SOT-23-6 Thin, TSOT-23-6

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Function:: Bipolar Switch

Technology:: Hall Effect

Polarization:: North Pole, South Pole

Sensing Range:: 10mT Trip, -10mT Release

Test Condition:: 25°C

Voltage - Supply:: 2.7V ~ 18V

Current - Supply (Max):: 7mA

Current - Output (Max):: 10mA

Output Type:: Open Collector

Features:: Temperature Compensated

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-TSOP6-6

TLE4966H FAQ

1.How can I place an order for TLE4966H through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4966H on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TLE4966H reliable?

The price and inventory of TLE4966H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4966H is usually 5 days.

3.What payment methods are accepted for TLE4966H?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4966H transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4966H?

TLE4966H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4966H order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TLE4966H?

For technical support, including TLE4966H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4966H requirements.

6.How does Aetrix verify that TLE4966H is sourced from the original manufacturer or authorized distributors?

All TLE4966H products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TLE4966H meets industry standards.

7.What is the process for return or replacement of TLE4966H?

All TLE4966H units undergo pre-shipment inspection (PSI). If there is an issue with TLE4966H, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TLE4966H part is unused and in its original packaging.

Return procedure for TLE4966H:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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