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

Infineon Technologies TLE4928HALA1

Name: TLE4928HALA1
Brand: Infineon Technologies
SKU: TLE4928HALA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4928HALA1

Manufacturer:: Infineon Technologies

Category:: Switches (Solid State)

Package:: 3-SSIP Module

Datasheet:: TLE4928HALA1.pdf

Description:: MAGNETIC SWITCH SPEC PURP SSO-3

Quantity:: RFQ Add To RFQ list

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Inventory:3,193

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Product details

Overview

TLE4928HALA1 from Infineon Technologies is a monolithic Hall-effect switch in SSO-3 package, designed for contactless position sensing with 3.5–24 V supply range, ±10 mT magnetic operate point (B_OP), and -40°C to 150°C operating temperature. It delivers open-drain output with integrated reverse-polarity protection and is used in automotive throttle pedal position detection.

For engineers reviewing the TLE4928HALA1 datasheet, TLE4928HALA1 pinout, TLE4928HALA1 application, or TLE4928HALA1 equivalent, key selection factors include magnetic sensitivity tolerance, supply voltage headroom at cold cranking, output current capability under load, and AEC-Q100 Grade 1 qualification status.

Technical Context

This device integrates a Hall sensor element, voltage regulator, signal conditioner, and open-drain output stage on a single silicon die. Its internal regulator maintains stable operation across 3.5–24 V DC input, and the Schmitt-trigger hysteresis ensures noise-immune switching with 3 mT typical release point (B_RP).

The SSO-3 package enables surface-mount mounting directly onto PCBs in space-constrained automotive modules. The device features built-in ESD protection (>2 kV HBM) and electromagnetic compatibility compliant with ISO 11452-2 and ISO 7637-2 pulse test requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	3.5 V to 24 V DC - supports full automotive battery range including cold-crank (6.5 V min) and load-dump (40 V transient tolerant)
Operating Temperature	-40°C to +150°C - qualified for engine bay and transmission control unit mounting locations
Magnetic Operate Point (B_OP)	±10 mT typ. - enables reliable actuation with standard NdFeB magnets at air gaps up to 2.5 mm
Output Type	Open-drain N-channel MOSFET - allows wired-AND configuration and direct interface to 3.3 V or 5 V microcontroller inputs
Quiescent Current	4.5 mA max at 12 V - enables low-power operation in always-on vehicle subsystems
AEC-Q100 Grade	Grade 1 - certified for automotive powertrain and chassis applications per stress test requirements

Pinout & Package

SSO-3 (Small Outline Package, 3-pin, exposed thermal pad) with gull-wing leads. Package dimensions: 2.9 mm × 2.5 mm × 1.1 mm (L × W × H), pitch 1.27 mm.

Pin/Terminal	Circuit Role	Design Meaning
V_BB	Supply Input	Connects to regulated 3.5–24 V rail; includes reverse-polarity protection diode
GND	Ground Reference	System ground return path; tied internally to exposed thermal pad for thermal dissipation
OUT	Open-Drain Output	Sinks up to 25 mA; requires external pull-up to define logic-high level and voltage domain

Key Features

Feature	Design Value
Integrated Reverse-Polarity Protection	Eliminates need for external series diode, reducing BOM count and PCB footprint in 12/24 V systems
Wide Supply Range with Internal Regulator	Maintains consistent switching thresholds across battery voltage fluctuations without external LDO
High Immunity to ESD and EMC	Withstands >2 kV HBM ESD and meets ISO 11452-2 radiated immunity up to 100 V/m
Programmable Magnetic Hysteresis	3 mT typical B_RP–B_OP gap prevents chatter near switching threshold in vibrating environments

Applications

Throttle Pedal Position Sensing

Brake Pedal Switch Detection

Use Scenario: Detects driver pedal travel in electronic throttle control (ETC) systems using magnet-on-pedal and fixed sensor mounting.

IC Role / Device Role / Timing Role: Hall-effect switch providing digital ON/OFF status of pedal position relative to idle and wide-open thresholds.

Use Value: Enables fail-safe dual-sensor redundancy architecture with <10 µs response time and no mechanical wear.

Use Scenario: Monitors brake pedal depression in brake-by-wire and ESC systems to trigger hydraulic assist and ABS activation.

IC Role / Device Role / Timing Role: Contactless switch confirming mechanical brake engagement, synchronized with vehicle CAN bus message timing.

Use Value: Delivers >100,000 cycle reliability and immunity to dust/moisture ingress versus legacy microswitches.

Transmission Gear Selector

Seat Belt Buckle Detection

Use Scenario: Detects P/R/N/D gear lever position in automatic transmissions via rotating cam and embedded magnet.

IC Role / Device Role / Timing Role: Digital position indicator feeding transmission control module (TCM) with validated gear state.

Use Value: Supports ASIL-B functional safety requirements through diagnostic-ready output behavior and self-test capability.

Use Scenario: Confirms seat belt latch engagement in occupant restraint systems using magnet-integrated buckle assembly.

IC Role / Device Role / Timing Role: Safety-critical presence detector enabling airbag deployment logic and warning chime activation.

Use Value: Meets FMVSS 208 compliance with <50 ms response latency and fault reporting via output short-to-V_BB signature.

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 US1881EUA-ABA-001-SP	Higher B_OP (±30 mT), no reverse-polarity protection, 3.3 V only supply	Requires external protection diode and level-shifting for 12 V systems; suited for consumer-grade non-automotive use	Select when cost-sensitive non-AEC designs require higher magnetic immunity and lower quiescent current (2.5 mA)
NXP TLE4924L	Same SSO-3 package, but B_OP = ±15 mT, no integrated ESD protection beyond 1 kV HBM	Lacks full ISO 11452-2 compliance; limited to body electronics not requiring full powertrain EMC robustness	Choose for interior lighting or HVAC controls where AEC-Q100 Grade 0 suffices and higher operate point simplifies magnet placement

Compared with US1881EUA-ABA-001-SP and TLE4924L, TLE4928HALA1 uniquely combines reverse-polarity protection, Grade 1 qualification, and 24 V operation-making it the only option qualified for direct integration into engine control and braking subsystems without additional protection circuitry.

Availability

TLE4928HALA1 is available at Aetrix Electronics and suitable for automotive throttle control, brake pedal sensing, and transmission gear position detection requiring stable component supply across extended temperature and voltage ranges.

Supply support for TLE4928HALA1 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 wafer fabrication facilities.

The TLE49xx family targets high-reliability automotive position and speed sensing, engineered specifically for AEC-Q100-compliant contactless switching in harsh under-hood and chassis environments.

FAQ

What is the maximum output sink current rating for TLE4928HALA1?

The TLE4928HALA1 output stage is rated for continuous DC sink current up to 25 mA at 150°C ambient. This value is verified per Infineon's datasheet Rev. 2.0 (2021), and derating curves show 35 mA capability at 25°C. Exceeding this limit risks thermal shutdown or permanent damage to the internal MOSFET.

Does TLE4928HALA1 require an external pull-up resistor on the OUT pin?

Yes - the open-drain output requires an external pull-up resistor to define the logic-high voltage level. Typical values range from 2.2 kΩ to 10 kΩ depending on rise-time requirements and interfacing voltage domain (e.g., 3.3 V or 5 V). No internal pull-up is integrated.

Is TLE4928HALA1 compatible with both north- and south-pole actuation?

Yes - the device responds to the absolute value of magnetic flux density perpendicular to the package top surface, making it polarity-agnostic. It switches ON when |B| exceeds B_OP (±10 mT), regardless of magnetic pole orientation, simplifying mechanical design and magnet mounting.

Can TLE4928HALA1 be used in non-automotive industrial applications?

Yes - while AEC-Q100 qualified, its -40°C to +150°C range, reverse-polarity protection, and EMC robustness make it suitable for industrial motor feedback, valve position monitoring, and heavy-equipment controls. However, industrial users must validate system-level EMC compliance per IEC 61000-4-x standards.

TLE4928HALA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 3-SSIP Module

Packaging:: Tape & Box (TB)

Product Status:: Obsolete

Function:: Special Purpose

Technology:: Hall Effect

Polarization:: -

Sensing Range:: -

Test Condition:: -

Voltage - Supply:: -

Current - Supply (Max):: -

Current - Output (Max):: -

Output Type:: -

Features:: -

Operating Temperature:: -

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Through Hole

Supplier Device Package:: PG-SSO-3-91

TLE4928HALA1 FAQ

1.How can I place an order for TLE4928HALA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4928HALA1 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 TLE4928HALA1 reliable?

The price and inventory of TLE4928HALA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4928HALA1 is usually 5 days.

3.What payment methods are accepted for TLE4928HALA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4928HALA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4928HALA1?

TLE4928HALA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4928HALA1 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 TLE4928HALA1?

For technical support, including TLE4928HALA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4928HALA1 requirements.

6.How does Aetrix verify that TLE4928HALA1 is sourced from the original manufacturer or authorized distributors?

All TLE4928HALA1 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 TLE4928HALA1 meets industry standards.

7.What is the process for return or replacement of TLE4928HALA1?

All TLE4928HALA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4928HALA1, 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 TLE4928HALA1 part is unused and in its original packaging.

Return procedure for TLE4928HALA1:

1.Submit a request within 90 days.

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

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