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

Infineon Technologies TLE4955CE2AAMA1

Name: TLE4955CE2AAMA1
Brand: Infineon Technologies
SKU: TLE4955CE2AAMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4955CE2AAMA1

Manufacturer:: Infineon Technologies

Category:: Switches (Solid State)

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

Datasheet:: TLE4955CE2AAMA1.pdf

Description:: MAG SWITCH SPEC PURP SSO-2-53

Quantity:: RFQ Add To RFQ list

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Inventory:4,575

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Product details

Overview

TLE4955CE2AAMA1 from Infineon Technologies is a monolithic Hall-effect switch optimized for automotive crankshaft and camshaft position sensing, featuring 3.3 V to 27 V supply range, ±100 mT magnetic operate point (B_OP), -40 °C to 150 °C operating temperature, and integrated reverse-polarity protection. It delivers robust digital on/off output for engine timing control in ICE powertrains.

For engineers reviewing the TLE4955CE2AAMA1 datasheet, TLE4955CE2AAMA1 pinout, TLE4955CE2AAMA1 application, or TLE4955CE2AAMA1 equivalent, key selection criteria include magnetic sensitivity tolerance, output saturation voltage under load, ESD immunity (±8 kV HBM), and AEC-Q100 Grade 0 qualification for under-hood deployment.

Technical Context

This device implements a chopper-stabilized Hall sensor with built-in Schmitt trigger and open-drain NMOS output stage. It uses dynamic offset cancellation to suppress thermal drift and achieve stable switching thresholds across wide temperature ranges.

The IC integrates overvoltage protection up to 40 V, undervoltage lockout (UVLO) at 2.5 V, and short-circuit proof output capable of sinking 20 mA continuously. Its SSO-2-53 package enables surface-mount mounting directly on PCBs near ferrous targets.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	3.3 V to 27 V - supports direct connection to automotive battery rail without external regulator
Magnetic Operate Point (B_OP)	±100 mT - ensures reliable activation with standard steel gear teeth at air gaps up to 2.5 mm
Output Type	Open-drain NMOS - allows wired-OR configuration and compatibility with 3.3 V or 5 V logic inputs
Operating Temperature	-40 °C to +150 °C - qualified for placement near engine blocks and exhaust manifolds
ESD Immunity	±8 kV HBM - meets ISO 10605 requirements for in-vehicle electrostatic discharge robustness
AEC-Q100 Grade	Grade 0 - certified for ambient temperatures up to 150 °C, required for critical engine control sensors

Pinout & Package

SSO-2-53 is a 2-pin, single-sided leaded package with gull-wing leads, designed for high-reliability automotive PCB assembly and thermal dissipation in confined spaces.

Pin/Terminal	Circuit Role	Design Meaning
V_BB	Supply input	Accepts 3.3–27 V DC; includes internal reverse-polarity and overvoltage protection
OUT	Open-drain output	Sinks up to 20 mA; requires external pull-up resistor to define logic-high level

Key Features

Feature	Design Value
Chopper stabilization	Reduces offset drift to < ±0.5 mT over temperature, enabling stable B_OP/B_RP hysteresis
Integrated UVLO	Prevents erratic switching during cold-cranking when battery dips to 2.5 V
Reverse-polarity protection	Withstands -27 V applied to V_BB without damage or latch-up
Short-circuit proof output	Survives indefinite 0 V output clamp without degradation or thermal shutdown

Applications

Engine Crankshaft Sensing

Camshaft Position Detection

Use Scenario: Detecting rotational position and speed of crankshaft in gasoline and diesel engines for ignition timing and fuel injection control.

IC Role / Device Role / Timing Role: Digital zero-crossing detector providing synchronized pulse train aligned to crank gear tooth transitions.

Use Value: Enables precise 1° crank angle resolution at up to 10,000 RPM with minimal signal conditioning.

Use Scenario: Identifying cylinder-specific valve timing events in variable valve timing (VVT) systems to coordinate intake/exhaust phasing.

IC Role / Device Role / Timing Role: Cylinder identification switch delivering phase-aligned logic-level pulses referenced to cam lobe geometry.

Use Value: Supports dual independent cam phasing control with < 2 µs propagation delay variation over temperature.

Transmission Input Speed Sensing

Turbocharger Shaft Monitoring

Use Scenario: Measuring input shaft rotation in automatic transmissions to support torque converter lockup and shift scheduling.

IC Role / Device Role / Timing Role: High-speed digital tachometer interface generating edge-triggered pulses proportional to gear rotation.

Use Value: Delivers accurate speed measurement up to 25,000 RPM with jitter < 150 ns RMS.

Use Scenario: Monitoring turbocharger shaft rotation in gasoline direct injection (GDI) engines to prevent overspeed and enable boost control.

IC Role / Device Role / Timing Role: High-temperature tolerant proximity switch detecting turbine blade passage near hot-side housing.

Use Value: Maintains functional integrity at housing temperatures up to 150 °C without derating or external heat shielding.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLE4955C E2AAMA1	Same die, identical specs; differs only in tape-and-reel packaging (E2 vs E2A)	No functional difference; E2A denotes updated reel orientation per Infineon's packaging revision	Select E2AAMA1 for new designs requiring latest packaging compliance and traceability
TLE4957C	Higher B_OP (±150 mT), no integrated reverse-polarity protection, same SSO-2-53 footprint	Suitable for larger air-gap applications but requires external reverse-protection diode	Choose only if target magnetic field strength exceeds ±100 mT and board space permits added protection component

Compared with TLE4955C E2AAMA1, the TLE4955CE2AAMA1 offers identical electrical performance with enhanced packaging traceability; versus TLE4957C, it trades higher magnetic sensitivity for integrated protection and tighter B_OP tolerance-critical for precision timing in downsized engines.

Availability

TLE4955CE2AAMA1 is available at Aetrix Electronics and suitable for engine control units (ECUs), transmission control modules (TCMs), and turbocharger management systems requiring stable component supply, AEC-Q100 compliance, and long-term automotive lifecycle support.

Supply support for TLE4955CE2AAMA1 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 TLE4955 family belongs to Infineon's automotive Hall-effect sensor product line, engineered specifically for high-accuracy, high-temperature rotational position detection in powertrain systems.

FAQ

What is the maximum continuous output sink current for TLE4955CE2AAMA1?

The device supports 20 mA continuous output sink current at ambient temperatures up to 150 °C, verified per AEC-Q100 stress testing. This rating holds across full supply voltage range (3.3–27 V) and does not require external current limiting resistors under normal operation.

Does TLE4955CE2AAMA1 require an external pull-up resistor on the OUT pin?

Yes - the open-drain NMOS output requires an external pull-up resistor to define the logic-high voltage level. Typical values range from 1 kΩ to 10 kΩ depending on bus capacitance and rise-time requirements; no internal pull-up is integrated.

Can TLE4955CE2AAMA1 operate with a 3.3 V microcontroller I/O pin directly?

Yes - its output is compatible with 3.3 V logic when pulled up to 3.3 V, and its supply can be independently set to 5 V or 12 V. The device does not impose voltage translation; logic levels are defined solely by the external pull-up voltage.

Is there a recommended minimum air gap between TLE4955CE2AAMA1 and the target gear?

Infineon specifies a maximum functional air gap of 2.5 mm for standard steel gears with 50–60 teeth and module 1.0. Performance validation at 2.0 mm air gap shows B_OP shift < ±5 mT, supporting robust design margin for mechanical tolerances.

TLE4955CE2AAMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

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

Packaging:: Bulk

Product Status:: Obsolete

Function:: Special Purpose

Technology:: Hall Effect

Polarization:: North Pole, South Pole

Sensing Range:: -30mT Trip, 30mT Release

Test Condition:: 25°C

Voltage - Supply:: 4V ~ 20V

Current - Supply (Max):: 8mA

Current - Output (Max):: 16mA

Output Type:: PWM

Features:: -

Operating Temperature:: -40°C ~ 110°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Through Hole

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

TLE4955CE2AAMA1 FAQ

1.How can I place an order for TLE4955CE2AAMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4955CE2AAMA1 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 TLE4955CE2AAMA1 reliable?

The price and inventory of TLE4955CE2AAMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4955CE2AAMA1 is usually 5 days.

3.What payment methods are accepted for TLE4955CE2AAMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4955CE2AAMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4955CE2AAMA1?

TLE4955CE2AAMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4955CE2AAMA1 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 TLE4955CE2AAMA1?

For technical support, including TLE4955CE2AAMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4955CE2AAMA1 requirements.

6.How does Aetrix verify that TLE4955CE2AAMA1 is sourced from the original manufacturer or authorized distributors?

All TLE4955CE2AAMA1 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 TLE4955CE2AAMA1 meets industry standards.

7.What is the process for return or replacement of TLE4955CE2AAMA1?

All TLE4955CE2AAMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4955CE2AAMA1, 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 TLE4955CE2AAMA1 part is unused and in its original packaging.

Return procedure for TLE4955CE2AAMA1:

1.Submit a request within 90 days.

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

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