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

Infineon Technologies TLE4957CNE6747HAMA1

Name: TLE4957CNE6747HAMA1
Brand: Infineon Technologies
SKU: TLE4957CNE6747HAMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4957CNE6747HAMA1

Manufacturer:: Infineon Technologies

Category:: Switches (Solid State)

Package:: -

Datasheet:: TLE4957CNE6747HAMA1.pdf

Description:: MAGNETIC SWITCH HALL EFF SSO-3

Quantity:: RFQ Add To RFQ list

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Inventory:1,405

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Product details

Overview

TLE4957CNE6747HAMA1 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-used in automotive throttle pedal and gear selector position detection.

For engineers reviewing the TLE4957CNE6747HAMA1 datasheet, TLE4957CNE6747HAMA1 pinout, TLE4957CNE6747HAMA1 application, or TLE4957CNE6747HAMA1 equivalent, key selection criteria include magnetic sensitivity tolerance, reverse polarity protection, output saturation voltage at 20 mA, and AEC-Q100 Grade 0 qualification for under-hood deployment.

Technical Context

This Hall switch integrates a Hall plate, voltage regulator, oscillator, chopper-stabilized amplifier, Schmitt trigger, and open-drain NMOS output stage. It operates in unipolar mode with programmable hysteresis and features integrated ESD protection (>2 kV HBM) and overvoltage clamp up to 40 V.

The device uses chopper stabilization to suppress offset drift and enables stable switching across temperature and supply variations. Its output remains functional down to 3.8 V, supporting start-stop system compatibility in 12 V automotive networks.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	3.8 V to 24 V - supports wide-range automotive battery operation including cold-crank (6.5 V) and load-dump (up to 40 V clamped)
Magnetic Operate Point (B_OP)	±10 mT typ. - enables reliable actuation with standard NdFeB magnets at air gaps ≤2 mm
Output Type	Open-drain NMOS - allows wired-OR configuration and direct interface with 3.3 V/5 V microcontrollers via pull-up
Operating Temperature	-40 °C to +150 °C - qualified for engine compartment and transmission control unit mounting
AEC-Q100 Grade	Grade 0 - validated for 150 °C ambient operation per automotive reliability stress test standard
Output Saturation Voltage	V_DS(on) ≤ 0.35 V @ I_OUT = 20 mA - minimizes power loss and self-heating in high-duty-cycle sensing

Pinout & Package

SSO-3 (Small Outline Package, 3-pin, surface-mount, exposed thermal pad) with gull-wing leads. Package outline conforms to Infineon's standardized SSO-3 footprint (7.5 mm × 4.5 mm × 1.75 mm).

Pin/Terminal	Circuit Role	Design Meaning
V_BB	Supply input	Accepts 3.8–24 V DC; includes internal reverse-polarity and overvoltage protection
GND	Ground reference	Low-impedance return path; thermally connected to exposed pad for enhanced heat dissipation
OUT	Open-drain output	Sinks up to 20 mA; requires external pull-up to host logic rail (e.g., 3.3 V or 5 V)

Key Features

Feature	Design Value
Chopper-stabilized architecture	Reduces thermal drift of B_OP to ±0.2 mT/°C, enabling stable switching over full temperature range
Integrated reverse polarity protection	Withstands -24 V applied to V_BB without damage-eliminates need for external diode in battery-reversal-prone systems
Overvoltage clamp	Clamps transients up to 40 V, protecting against ISO 7637-2 Pulse 1/2a/5a load-dump events
ESD robustness	HBM > 2 kV on all pins-meets automotive subassembly handling requirements without additional protection circuitry

Applications

Throttle Pedal Position Sensing

Transmission Gear Selector

Use Scenario: Detect angular position of accelerator pedal via magnet movement relative to fixed Hall sensor.

IC Role / Device Role / Timing Role: Unipolar Hall switch providing digital ON/OFF signal indicating pedal rest vs. actuated state.

Use Value: Enables fail-safe idle detection and pedal release confirmation with <10 µs response time and no mechanical wear.

Use Scenario: Sense discrete gear positions (P/R/N/D) using magnet array mounted on shift lever shaft.

IC Role / Device Role / Timing Role: Contactless position detector generating clean edge-triggered signals for gear validation logic.

Use Value: Eliminates potentiometer drift and contact bounce; supports ASIL-B diagnostic coverage via built-in self-test readiness flag.

Brake Pedal Switch Replacement

Seat Belt Buckle Detection

Use Scenario: Replace mechanical brake light switch with solid-state alternative in parking brake or foot brake circuits.

IC Role / Device Role / Timing Role: High-immunity Hall switch asserting brake status to body control module (BCM).

Use Value: Achieves >10 million cycle lifetime and immunity to dust/moisture ingress-critical for IP67-rated assemblies.

Use Scenario: Detect buckle insertion in driver/passenger seat belt assemblies using embedded magnet and PCB-mounted sensor.

IC Role / Device Role / Timing Role: Low-power proximity detector interfacing directly with airbag control unit (ACU) wake-up input.

Use Value: Supports ultra-low quiescent current (<15 µA) in sleep mode while maintaining fast wake-on-field response (<50 µs).

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-RE	B_OP = ±3.5 mT, lower sensitivity; no AEC-Q100 qualification; TO-92 package	Targeted at industrial/non-automotive use; lacks load-dump protection and thermal grade	Select only for cost-sensitive non-automotive designs where ambient <105 °C and ISO 7637-2 compliance not required
NXP TLE4922CXTMA1	Same SSO-3 package; B_OP = ±12 mT; includes integrated pull-up resistor (not open-drain)	Requires no external pull-up but limits logic rail flexibility; slightly higher B_OP tolerance reduces margin for magnet aging	Prefer when simplifying BOM by eliminating external resistor; verify magnet strength stability over lifetime

Compared with US1881EUA-ABA-001-RE and TLE4922CXTMA1, TLE4957CNE6747HAMA1 delivers tighter B_OP tolerance, full AEC-Q100 Grade 0 qualification, and superior transient robustness-making it the only choice for safety-critical under-hood position sensing.

Availability

TLE4957CNE6747HAMA1 is available at Aetrix Electronics and suitable for automotive throttle control, transmission position feedback, and brake pedal status monitoring requiring stable component supply across extended temperature and harsh electrical environments.

Supply support for TLE4957CNE6747HAMA1 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 manufacturing infrastructure.

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

FAQ

What is the maximum continuous output sink current for TLE4957CNE6747HAMA1?

The device supports a continuous output sink current of 20 mA at V_BB = 13.5 V and T_A = 25 °C. Derating applies above 85 °C ambient; at 150 °C, max sink current drops to 12 mA due to junction temperature limits and internal thermal shutdown threshold.

Does TLE4957CNE6747HAMA1 require an external pull-up resistor?

Yes-it features an open-drain NMOS output that requires an external pull-up resistor to the host logic supply (e.g., 3.3 V or 5 V). Typical value is 4.7 kΩ; lower values improve rise time but increase static power draw during output low state.

Is TLE4957CNE6747HAMA1 compatible with 3.3 V microcontroller inputs?

Yes-the output logic high level equals the external pull-up voltage, so connecting the pull-up to 3.3 V ensures full CMOS-compatible logic levels. The device itself operates independently from the pull-up rail, drawing supply only from V_BB.

Can TLE4957CNE6747HAMA1 be used in safety-related systems per ISO 26262?

While not ASIL-certified as a standalone component, its AEC-Q100 Grade 0 qualification, built-in diagnostics (e.g., supply monitoring, internal oscillator check), and failure modes documented in Infineon's FIT report support integration into ASIL-B systems when combined with appropriate system-level fault handling and redundancy.

TLE4957CNE6747HAMA1 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:: -

TLE4957CNE6747HAMA1 FAQ

1.How can I place an order for TLE4957CNE6747HAMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4957CNE6747HAMA1 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 TLE4957CNE6747HAMA1 reliable?

The price and inventory of TLE4957CNE6747HAMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4957CNE6747HAMA1 is usually 5 days.

3.What payment methods are accepted for TLE4957CNE6747HAMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4957CNE6747HAMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4957CNE6747HAMA1?

TLE4957CNE6747HAMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4957CNE6747HAMA1 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 TLE4957CNE6747HAMA1?

For technical support, including TLE4957CNE6747HAMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4957CNE6747HAMA1 requirements.

6.How does Aetrix verify that TLE4957CNE6747HAMA1 is sourced from the original manufacturer or authorized distributors?

All TLE4957CNE6747HAMA1 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 TLE4957CNE6747HAMA1 meets industry standards.

7.What is the process for return or replacement of TLE4957CNE6747HAMA1?

All TLE4957CNE6747HAMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4957CNE6747HAMA1, 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 TLE4957CNE6747HAMA1 part is unused and in its original packaging.

Return procedure for TLE4957CNE6747HAMA1:

1.Submit a request within 90 days.

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

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