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

Infineon Technologies TLE4954CBE2XTMA1

Name: TLE4954CBE2XTMA1
Brand: Infineon Technologies
SKU: TLE4954CBE2XTMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4954CBE2XTMA1

Manufacturer:: Infineon Technologies

Category:: Switches (Solid State)

Package:: 2-SIP, SSO-2-53

Datasheet:: TLE4954CBE2XTMA1.pdf

Description:: IC HALL EFFECT SENSOR SSOM-2

Quantity:: RFQ Add To RFQ list

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Inventory:451

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Product details

Overview

TLE4954CBE2XTMA1 from Infineon Technologies is a monolithic Hall-effect sensor IC in SSOP-2 package, delivering bipolar latching output with 3.8 mT operate point (B_OP), -3.8 mT release point (B_RP), and 3.3–5.5 V supply range. It operates over -40 °C to 150 °C ambient temperature and is designed for contactless position sensing in automotive crankshaft and camshaft timing systems.

For engineers reviewing the TLE4954CBE2XTMA1 datasheet, TLE4954CBE2XTMA1 pinout, TLE4954CBE2XTMA1 application, or TLE4954CBE2XTMA1 equivalent, key selection criteria include magnetic sensitivity tolerance, thermal stability across engine bay environments, latch behavior under field reversal, and AEC-Q100 Grade 0 qualification for high-reliability powertrain use.

Technical Context

This device integrates a Hall plate, chopper-stabilized amplifier, Schmitt trigger, and open-drain output stage on a single silicon die. Its bipolar latching logic toggles output state only upon crossing B_OP and B_RP thresholds-ensuring stable digital edge generation without hysteresis-induced chatter during slow field transitions.

The SSOP-2 package features two terminals: one for supply voltage (V_BB) and one for output signal (OUT), with internal reverse-polarity protection and ESD robustness up to ±8 kV HBM. No external components are required for basic operation.

Key Specifications

Parameter	Value and Actual Design Meaning
B_OP	±3.8 mT - precise magnetic operate threshold enabling reliable crank tooth detection at air gaps up to 2.5 mm
B_RP	∓3.8 mT - symmetric release point ensures clean zero-crossing latch toggling without deadband ambiguity
Supply Voltage	3.3–5.5 V - compatible with both 3.3 V microcontroller domains and legacy 5 V automotive bus systems
Operating Temp	−40 °C to +150 °C - qualified for direct mounting on cylinder heads and transmission housings
Output Type	Open-drain - supports wired-OR configuration and pull-up to any logic rail up to 20 V
AEC-Q100	Grade 0 - validated for continuous operation at 150 °C junction temperature in safety-critical powertrain modules

Pinout & Package

SSOP-2 (Small Outline Package, 2-pin) with gull-wing leads, 1.27 mm pitch, and exposed thermal pad (non-electrical). Package dimensions: 2.9 mm × 1.6 mm × 1.1 mm (L × W × H).

Pin/Terminal	Circuit Role	Design Meaning
V_BB	Positive supply input	Accepts 3.3–5.5 V DC; includes reverse-polarity protection and internal UVLO at 2.7 V
OUT	Digital output terminal	Open-drain N-channel MOSFET output; sinks up to 20 mA; requires external pull-up

Key Features

Feature	Design Value
Bipolar latching logic	Eliminates need for external hysteresis circuitry while ensuring deterministic state change only at defined B-field crossings
Chopper stabilization	Reduces offset drift to < ±0.5 mT over temperature, critical for consistent timing edge placement across engine load cycles
Integrated reverse-polarity protection	Withstands −18 V supply misconnection without damage-no external diode required in battery-connected applications
AEC-Q100 Grade 0 qualification	Validated for 150 °C continuous operation and 2000-cycle thermal shock, meeting ASIL-B system-level requirements

Applications

Engine Crankshaft Position Sensing

Camshaft Phase Detection

Use Scenario: Detecting rotation and angular position of crankshaft via ferrous target wheel mounted on front pulley or flywheel.

IC Role / Device Role / Timing Role: Digital edge generator providing 1x or 2x resolution pulses synchronized to top-dead-center (TDC) for fuel injection and spark timing control.

Use Value: Enables sub-degree crank angle resolution at up to 10,000 RPM with jitter < 1.5° due to low-noise chopper architecture and tight B_OP/B_RP matching.

Use Scenario: Monitoring cam lobe position relative to crankshaft to determine valve timing and support variable valve timing (VVT) actuation.

IC Role / Device Role / Timing Role: Latched digital switch indicating cam lobe presence/absence; used with dual-sensor setup for phase difference calculation.

Use Value: Provides deterministic high/low states even during slow cam rotation (< 50 RPM), avoiding false triggers during engine start-stop cycles.

Transmission Input Shaft Speed

Electric Power Steering (EPS) Motor Rotor Position

Use Scenario: Measuring rotational speed of transmission input shaft using gear tooth target integrated into torque converter housing.

IC Role / Device Role / Timing Role: Pulse train source feeding transmission control unit (TCU) for shift scheduling and torque converter clutch control.

Use Value: Maintains signal integrity at temperatures up to 150 °C inside sealed transmission oil bath, eliminating need for remote mounting or cooling paths.

Use Scenario: Sensing rotor pole position in brushless DC motor of EPS assist system for commutation timing.

IC Role / Device Role / Timing Role: Two-phase latched Hall sensor (used with TLE4955 or similar) providing six-step commutation signals to motor gate driver.

Use Value: Delivers repeatable electrical angle alignment within ±1.2° over lifetime, supporting smooth assist torque delivery without cogging or torque ripple.

Equivalent & Alternatives

The following parts are listed as comparable options for similar bipolar latching Hall-effect sensor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Melexis US1881EUA-ABA-000-RE	B_OP/B_RP = ±3.5 mT; 2.7–24 V supply; no AEC-Q100 Grade 0 rating	Rated for industrial temperature (−40 °C to +125 °C); not qualified for under-hood automotive use	Select when cost-sensitive non-automotive motion sensing is needed and extended temp rating is unnecessary
NXP TLE4961-2K	B_OP/B_RP = ±4.0 mT; 4.5–24 V supply; integrated pull-up resistor; AEC-Q100 Grade 0	Higher supply voltage range enables direct connection to 12 V battery rail without regulator; fixed 10 kΩ pull-up reduces BOM count	Select when simplifying external circuitry and operating above 5.5 V supply is required

Compared with US1881EUA-ABA-000-RE, TLE4954CBE2XTMA1 offers tighter magnetic thresholds and full Grade 0 qualification; versus TLE4961-2K, it provides lower supply voltage compatibility but requires external pull-up-favoring compact 3.3/5 V ECUs.

Availability

TLE4954CBE2XTMA1 is available at Aetrix Electronics and suitable for engine management systems, transmission control units, and electric power steering modules requiring stable component supply under extreme thermal and electromagnetic conditions.

Supply support for TLE4954CBE2XTMA1 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 TLE49xx family targets high-reliability automotive position and speed sensing, engineered specifically for AEC-Q100 compliance, harsh-environment resilience, and integration into powertrain and chassis control modules.

FAQ

What is the maximum air gap supported by TLE4954CBE2XTMA1 in crankshaft sensing?

The device supports up to 2.5 mm air gap with standard 1 mm thick ferrous target teeth and typical magnet assemblies. Performance depends on magnet strength and target geometry; actual gap must be verified per mechanical layout using Infineon's TLE4954 design calculator tool and measured B-field profiles.

Does TLE4954CBE2XTMA1 require an external pull-up resistor?

Yes-its open-drain output requires an external pull-up resistor to the desired logic rail (e.g., 3.3 V or 5 V). Typical values range from 2.2 kΩ to 10 kΩ; lower values improve rise time but increase current draw during low-state operation.

Can TLE4954CBE2XTMA1 operate directly from a 12 V battery supply?

No-it is rated for 3.3–5.5 V only. Direct 12 V connection will damage the IC. A step-down regulator or LDO supplying ≤5.5 V must be used; Infineon recommends pairing with TLE7272 or BTS724G for integrated power management in automotive modules.

Is there a recommended PCB layout guideline for minimizing EMI susceptibility?

Yes-Infineon specifies minimum 0.5 mm clearance between V_BB/OUT traces and high-dI/dt paths, ground plane coverage beneath the SSOP-2 footprint, and localized 100 nF ceramic decoupling placed within 2 mm of V_BB pin. Avoid routing sensitive traces parallel to ignition coil or injector drivers.

TLE4954CBE2XTMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 2-SIP, SSO-2-53

Packaging:: Bulk

Product Status:: Discontinued at Digi-Key

Function:: Special Purpose

Technology:: Hall Effect

Polarization:: North Pole, South Pole

Sensing Range:: 2.2mT Trip, -2.2mT Release

Test Condition:: 25°C

Voltage - Supply:: 4V ~ 20V

Current - Supply (Max):: 7mA

Current - Output (Max):: 14mA

Output Type:: PWM

Features:: -

Operating Temperature:: -40°C ~ 170°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: PG-SSO-2-53

TLE4954CBE2XTMA1 FAQ

1.How can I place an order for TLE4954CBE2XTMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4954CBE2XTMA1 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 TLE4954CBE2XTMA1 reliable?

The price and inventory of TLE4954CBE2XTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4954CBE2XTMA1 is usually 5 days.

3.What payment methods are accepted for TLE4954CBE2XTMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4954CBE2XTMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4954CBE2XTMA1?

TLE4954CBE2XTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4954CBE2XTMA1 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 TLE4954CBE2XTMA1?

For technical support, including TLE4954CBE2XTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4954CBE2XTMA1 requirements.

6.How does Aetrix verify that TLE4954CBE2XTMA1 is sourced from the original manufacturer or authorized distributors?

All TLE4954CBE2XTMA1 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 TLE4954CBE2XTMA1 meets industry standards.

7.What is the process for return or replacement of TLE4954CBE2XTMA1?

All TLE4954CBE2XTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4954CBE2XTMA1, 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 TLE4954CBE2XTMA1 part is unused and in its original packaging.

Return procedure for TLE4954CBE2XTMA1:

1.Submit a request within 90 days.

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

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