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

Infineon Technologies TLE4957C2E6847HAMA1

Name: TLE4957C2E6847HAMA1
Brand: Infineon Technologies
SKU: TLE4957C2E6847HAMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4957C2E6847HAMA1

Manufacturer:: Infineon Technologies

Category:: Switches (Solid State)

Package:: -

Datasheet:: TLE4957C2E6847HAMA1.pdf

Description:: MAGNETIC SWITCH HALL EFF SSO-3

Quantity:: RFQ Add To RFQ list

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Inventory:7,500

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Product details

Overview

TLE4957C2E6847HAMA1 from Infineon Technologies is a monolithic Hall-effect switch in SSO-3 package, designed for contactless position sensing with 3.8–24 V supply range, ±10 mT magnetic operate point (B_OP), and -40 °C to 150 °C operating temperature. It is used in automotive throttle pedal position detection and transmission gear selector sensing.

For engineers reviewing the TLE4957C2E6847HAMA1 datasheet, TLE4957C2E6847HAMA1 pinout, TLE4957C2E6847HAMA1 application, or TLE4957C2E6847HAMA1 equivalent, key selection criteria include magnetic sensitivity tolerance, reverse polarity protection, output saturation voltage under load, and AEC-Q100 qualification status.

Technical Context

This device integrates a Hall sensor, amplifier, Schmitt trigger, and open-drain N-channel MOSFET output on a single die. It operates in unipolar mode with built-in reverse-polarity protection and thermal shutdown, enabling robust operation in harsh automotive environments.

The integrated regulator ensures stable internal biasing across the full 3.8–24 V supply range, while the output stage supports up to 50 mA sink current with <0.4 V saturation voltage at I_OUT = 20 mA and T_J = 25 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	3.8 V to 24 V - supports direct battery connection in 12 V/24 V automotive systems without external regulation
Magnetic Operate Point (B_OP)	±10 mT typ. - enables reliable switching with standard ferrite magnets at air gaps up to 2.5 mm
Output Type	Open-drain N-channel MOSFET - allows wired-AND configuration and direct interface with microcontroller GPIO or pull-up logic
Max Output Current	50 mA - sufficient to drive small relays, LEDs, or optocouplers without external driver stage
Operating Temperature	-40 °C to +150 °C - qualified for engine bay and transmission control unit mounting locations
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, surface-mount) with exposed thermal pad; pin 1 = V_BB, pin 2 = GND, pin 3 = OUT.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (V_BB)	Positive supply input	Accepts 3.8–24 V DC; includes reverse-polarity protection diode internally
Pin 2 (GND)	Ground reference	Common return path for supply and output current; connects to thermal pad for heat dissipation
Pin 3 (OUT)	Open-drain output	Sinks current when active; requires external pull-up resistor to define logic HIGH level

Key Features

Feature	Design Value
Integrated reverse-polarity protection	Withstands -24 V applied to V_BB without damage - eliminates need for external series diode
Thermal shutdown	Activates at T_J > 170 °C and releases at ~155 °C - prevents latch-up during overload or ambient overheating
Low quiescent current	3.5 mA max at 12 V - reduces system standby power consumption in always-on modules
ESD protection	HBM ±4 kV - meets automotive ESD immunity requirements without additional TVS components

Applications

Throttle Pedal Position Sensing

Transmission Gear Selector

Use Scenario: Detect angular position of accelerator pedal via magnet movement over PCB-mounted Hall sensor.

IC Role / Device Role / Timing Role: Digital on/off switch providing discrete pedal travel zone indication to ECU.

Use Value: Enables fail-safe pedal position monitoring with BIST-capable hysteresis and AEC-Q100-compliant reliability.

Use Scenario: Sense mechanical detent positions in automatic transmission shift lever assemblies.

IC Role / Device Role / Timing Role: Contactless position detector replacing wear-prone potentiometers and microswitches.

Use Value: Delivers >10 million cycle lifetime and immunity to dust, oil, and vibration in gearbox housing.

Brake Light Activation

Seat Belt Buckle Detection

Use Scenario: Trigger brake lamp illumination when brake pedal reaches threshold displacement.

IC Role / Device Role / Timing Role: High-immunity digital switch interfacing directly with body control module inputs.

Use Value: Eliminates mechanical switch bounce and corrosion issues while meeting ISO 11452-2 EMC requirements.

Use Scenario: Confirm seat belt tongue insertion into buckle using embedded magnet and Hall sensor.

IC Role / Device Role / Timing Role: Safety-critical occupancy and restraint status indicator with diagnostic capability.

Use Value: Supports ASIL-B relevant diagnostics via supply monitoring and output short-circuit detection.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLE4957C2E6847XAMA1	Same die, different tape-and-reel packaging (XAMA1 = 3000 pcs/reel vs HAMA1 = 1000 pcs/reel); identical electrical specs	No functional difference; selected based on production line feed requirements	Choose HAMA1 for prototyping or low-volume builds; XAMA1 for high-volume SMT lines
TLV49572DC50HALA1	Lower B_OP (±5 mT), 5 V only supply, no reverse-polarity protection, same SSO-3 footprint	Limited to low-voltage non-automotive applications (e.g., consumer appliance lid detection)	Not suitable for 12/24 V automotive use; requires external protection and level-shifting

Compared with TLE4957C2E6847HAMA1, the XAMA1 variant offers identical performance with optimized packaging logistics, while TLV49572DC50HALA1 lacks reverse-protection and wide-supply capability-making it unsuitable for direct replacement in automotive powertrain designs.

Availability

TLE4957C2E6847HAMA1 is available at Aetrix Electronics and suitable for automotive throttle sensing, transmission position feedback, and brake light activation requiring stable component supply across extended temperature and voltage ranges.

Supply support for TLE4957C2E6847HAMA1 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 ICs, and sensor solutions, with global R&D and wafer fabrication infrastructure.

The TLE49xx family targets automotive position and speed sensing, engineered for AEC-Q100 compliance, high EMC immunity, and long-term reliability in safety-critical drivetrain subsystems.

FAQ

What is the maximum continuous output current rating for TLE4957C2E6847HAMA1?

The device supports up to 50 mA continuous sink current at T_J ≤ 150 °C. At 20 mA load and 25 °C junction temperature, the output saturation voltage is ≤0.4 V. Derating applies above 125 °C ambient, per the thermal characteristics curve in Infineon's TLE4957 datasheet Rev. 2.1, Section 6.3.

Does TLE4957C2E6847HAMA1 require an external pull-up resistor on the output pin?

Yes - the open-drain output must be pulled up to a logic-compatible voltage (e.g., 3.3 V or 5 V) via an external resistor. Typical values range from 2.2 kΩ to 10 kΩ depending on rise time and bus capacitance. No internal pull-up is integrated.

Is TLE4957C2E6847HAMA1 qualified for ASIL-B functional safety applications?

While not ASIL-B certified as a standalone element, the device meets AEC-Q100 Grade 1 and supports system-level ASIL-B architectures via diagnostic features including supply monitoring, thermal shutdown, and output short-circuit detection - all documented in Infineon's TLE4957 Safety Manual (V1.0, 2022).

Can TLE4957C2E6847HAMA1 operate with a 24 V truck battery system?

Yes - its 3.8–24 V supply range covers nominal 24 V commercial vehicle systems, including cold-crank (down to 6 V) and load-dump (up to 40 V transient) conditions when paired with appropriate external clamping (e.g., TVS diode per ISO 7637-2 Pulse 5a).

TLE4957C2E6847HAMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: -

Packaging:: Bulk

Product Status:: Obsolete

Function:: -

Technology:: -

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:: -

Supplier Device Package:: -

TLE4957C2E6847HAMA1 FAQ

1.How can I place an order for TLE4957C2E6847HAMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4957C2E6847HAMA1 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 TLE4957C2E6847HAMA1 reliable?

The price and inventory of TLE4957C2E6847HAMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4957C2E6847HAMA1 is usually 5 days.

3.What payment methods are accepted for TLE4957C2E6847HAMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4957C2E6847HAMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4957C2E6847HAMA1?

TLE4957C2E6847HAMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4957C2E6847HAMA1 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 TLE4957C2E6847HAMA1?

For technical support, including TLE4957C2E6847HAMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4957C2E6847HAMA1 requirements.

6.How does Aetrix verify that TLE4957C2E6847HAMA1 is sourced from the original manufacturer or authorized distributors?

All TLE4957C2E6847HAMA1 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 TLE4957C2E6847HAMA1 meets industry standards.

7.What is the process for return or replacement of TLE4957C2E6847HAMA1?

All TLE4957C2E6847HAMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4957C2E6847HAMA1, 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 TLE4957C2E6847HAMA1 part is unused and in its original packaging.

Return procedure for TLE4957C2E6847HAMA1:

1.Submit a request within 90 days.

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

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