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

Infineon Technologies TLE4906H

Name: TLE4906H
Brand: Infineon Technologies
SKU: TLE4906H
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4906H

Manufacturer:: Infineon Technologies

Category:: Switches (Solid State)

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: TLE4906H.pdf

Description:: MAGNETIC SWITCH UNIPOLAR SC59

Quantity:: RFQ Add To RFQ list

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Inventory:1,401

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Product details

Overview

TLE4906H from Infineon Technologies is a high-precision Hall-effect switch sensor in SC59 (SOT23-compatible) package, operating from 2.7 V to 24 V supply, with ±6 kV HBM ESD rating, 1 µs typical jitter, and reverse battery protection down to –18 V. It delivers stable magnetic switching points across –40°C to 150°C ambient, used for accurate position sensing in automotive throttle and brake pedal modules.

For engineers reviewing the TLE4906H datasheet, TLE4906H pinout, TLE4906H application, or TLE4906H equivalent, key selection criteria include unregulated supply operation, active error compensation for mechanical stress immunity, chopper-stabilized threshold accuracy, and SMD SC59 footprint compatibility with standard SOT23 reflow processes.

Technical Context

The TLE4906H integrates a chopped Hall probe, on-chip oscillator, bias generator, temperature-compensated amplifier, low-pass filter, comparator with hysteresis, and reverse-polarity-protected voltage regulator. Its active error compensation rejects offset drift induced by molding stress and thermal cycling.

It uses chopper stabilization to suppress DC offsets and achieve precise magnetic switching thresholds (B_OP = ±3.5 mT typ., B_RP = ±2.5 mT typ.) with <±0.5 mT temperature drift over –40°C to 150°C. Output is open-collector digital signal with 50 mA sink capability.

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 without external LDO.
Reverse Battery Protection	–18 V - withstands reverse polarity connection during service without damage or latch-up.
Jitter (typ.)	1 µs - enables reliable timing-critical edge detection in fast-rotating crankshaft or camshaft sensing.
ESD Rating (HBM)	±6 kV - meets automotive assembly ESD robustness requirements without additional protection circuitry.
Operating Temperature	–40°C to +150°C - qualified for under-hood engine compartment placement per AEC-Q100 Class 0.
Magnetic Sensitivity	B_OP = ±3.5 mT (typ.), B_RP = ±2.5 mT (typ.) - tight hysteresis window ensures noise-immune switching in high-vibration environments.
Output Type	Open-collector NPN - allows flexible pull-up to any logic rail (3.3 V, 5 V, or 12 V) and wired-OR configuration.

Pinout & Package

Package: SC59 (SOT23-compatible), 3-pin surface-mount plastic package with gull-wing leads; moisture sensitivity level (MSL) 1 per JEDEC J-STD-020.

Pin/Terminal	Circuit Role	Design Meaning
1 - VS	Supply input	Accepts 2.7–24 V with integrated reverse-polarity protection; internal regulator powers analog core.
2 - Q	Digital output	Open-collector NPN output; sinks up to 50 mA; requires external pull-up for logic-high state.
3 - GND	Ground reference	Common return path for supply and output; must be low-impedance to minimize magnetic field coupling errors.

Key Features

Feature	Design Value
Active Error Compensation	Rejects mechanical stress-induced offset drift from soldering and packaging, maintaining switching point stability over lifetime.
Chopper-Stabilized Architecture	Eliminates 1/f noise and DC offset in Hall element and amplifier, enabling sub-mT threshold repeatability.
Unregulated Supply Operation	Operates directly from raw 12 V battery rail with no external regulation-reduces BOM count and PCB area.
High-Temperature Junction Rating	Rated for 195°C peak junction temperature (3 × 1 h), supporting reflow soldering and under-hood thermal cycling.

Applications

Automotive Throttle Position Sensing

Brake Pedal Position Detection

Use Scenario: Detect angular displacement of accelerator pedal shaft via magnet rotation near sensor.

IC Role / Device Role / Timing Role: Hall-effect switch providing clean digital on/off transition at calibrated pedal angles.

Use Value: Active error compensation maintains consistent B_OP/B_RP despite thermal expansion of housing and magnet misalignment over 15-year vehicle life.

Use Scenario: Monitor brake pedal travel to enable brake light activation and electronic stability control (ESC) input.

IC Role / Device Role / Timing Role: Magnetic proximity switch triggering at defined pedal stroke thresholds.

Use Value: ±6 kV HBM ESD rating prevents field failures during service technician handling; 1 µs jitter ensures deterministic ESC response timing.

Engine Crankshaft Speed Sensing

Transmission Gear Position Feedback

Use Scenario: Detect passing teeth on reluctor wheel mounted on crankshaft for RPM and ignition timing.

IC Role / Device Role / Timing Role: High-speed digital edge detector synchronized to rotational events.

Use Value: Chopper stabilization enables reliable zero-speed detection and consistent pulse width at low RPM (<50 rpm), critical for start-stop systems.

Use Scenario: Sense gear selector lever position using discrete magnets aligned with P/R/N/D positions.

IC Role / Device Role / Timing Role: Binary position indicator with hysteresis to prevent chatter during mechanical detent transitions.

Use Value: Tight ±0.5 mT temperature coefficient ensures correct gear identification across full –40°C to +125°C cabin temperature range.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Melexis US1881	Lower supply range (3.5–24 V); no reverse battery protection; ±4 kV HBM ESD.	Lacks –18 V reverse polarity tolerance; requires external protection diode in battery-connected designs.	Use only where reverse connection risk is eliminated by system-level design.
Allegro A1120EUA-T	Wider B_OP range (±5–10 mT); no active error compensation; 150°C max ambient.	Higher magnetic hysteresis reduces position resolution; less stable under thermal cycling.	Preferable only for cost-sensitive non-automotive applications with controlled mechanical environment.

Compared with US1881 and A1120EUA-T, the TLE4906H uniquely combines reverse battery protection, active error compensation, and ±6 kV ESD in an AEC-Q100-qualified SC59 package-making it the only choice for safety-critical, thermally stressed automotive position sensing where long-term magnetic threshold stability is mandatory.

Availability

TLE4906H is available at Aetrix Electronics and suitable for automotive throttle control, brake pedal monitoring, engine speed sensing, and transmission position feedback requiring stable component supply across extended temperature and vibration profiles.

Supply support for TLE4906H 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 ICs, and sensor solutions, with global R&D and manufacturing infrastructure.

The TLE4906H belongs to Infineon's high-precision Hall-effect switch product line, engineered specifically for automotive position and speed sensing applications demanding AEC-Q100 qualification, mechanical stress resilience, and magnetic accuracy over full automotive temperature range.

FAQ

What is the magnetic field polarity requirement for TLE4906H operation?

The TLE4906H responds to vertical magnetic flux perpendicular to the package top surface. It switches on when south pole (B > +B_OP) approaches the marked side and off when field drops below +B_RP; north pole exposure produces no switching. The sensitive area center is located 1.35 mm from pin 1 edge and 0.8 mm from package surface.

Can TLE4906H drive an LED directly without external components?

Yes - its open-collector output can sink up to 50 mA, sufficient to drive standard indicator LEDs with appropriate series resistor. For a 12 V supply and 20 mA LED current, use a 560 Ω pull-up resistor; ensure total power dissipation in the IC remains below 250 mW under continuous conduction.

Is TLE4906H pin-compatible with TLE4906L?

No - TLE4906H uses SC59 (SOT23) package with pinout VS–Q–GND, while TLE4906L uses PG-SSO-3-2 with pinout VS–GND–Q. Though functionally identical, their PCB footprints and solder reflow profiles differ; board redesign is required for substitution.

Does TLE4906H require external filtering capacitors on the supply line?

Yes - a 100 nF ceramic capacitor placed within 2 mm of the VS and GND pins is mandatory to suppress high-frequency noise and stabilize the internal regulator. For noisy battery environments, add a 10 µF tantalum or aluminum electrolytic capacitor in parallel to improve low-frequency ripple rejection.

TLE4906H Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: TLE

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Function:: Unipolar Switch

Technology:: Hall Effect

Polarization:: South Pole

Sensing Range:: 13.5mT Trip, 5mT Release

Test Condition:: 25°C

Voltage - Supply:: 2.7V ~ 18V

Current - Supply (Max):: 6mA

Current - Output (Max):: 20mA

Output Type:: Open Collector

Features:: Temperature Compensated

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-SC59-3

TLE4906H FAQ

1.How can I place an order for TLE4906H through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4906H 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 TLE4906H reliable?

The price and inventory of TLE4906H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4906H is usually 5 days.

3.What payment methods are accepted for TLE4906H?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4906H transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4906H?

TLE4906H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4906H 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 TLE4906H?

For technical support, including TLE4906H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4906H requirements.

6.How does Aetrix verify that TLE4906H is sourced from the original manufacturer or authorized distributors?

All TLE4906H 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 TLE4906H meets industry standards.

7.What is the process for return or replacement of TLE4906H?

All TLE4906H units undergo pre-shipment inspection (PSI). If there is an issue with TLE4906H, 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 TLE4906H part is unused and in its original packaging.

Return procedure for TLE4906H:

1.Submit a request within 90 days.

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

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