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

Infineon Technologies TLE4984CX2SF47HAMA1

Name: TLE4984CX2SF47HAMA1
Brand: Infineon Technologies
SKU: TLE4984CX2SF47HAMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4984CX2SF47HAMA1

Manufacturer:: Infineon Technologies

Category:: Switches (Solid State)

Package:: -

Datasheet:: TLE4984CX2SF47HAMA1.pdf

Description:: MAG SWITCH SPEED SENSOR 3SSO

Quantity:: RFQ Add To RFQ list

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Inventory:2,540

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Product details

Overview

TLE4984CX2SF47HAMA1 from Infineon Technologies is a programmable Hall-effect speed sensor IC with integrated signal conditioning, designed for crankshaft and camshaft position sensing in automotive powertrain systems; features 3-wire interface (V_BB, GND, OUT), ±50 G magnetic field sensitivity, 0–20 kHz output frequency range, and operates from 4.5 V to 24 V supply voltage.

For engineers reviewing the TLE4984CX2SF47HAMA1 datasheet, TLE4984CX2SF47HAMA1 pinout, TLE4984CX2SF47HAMA1 application, or TLE4984CX2SF47HAMA1 equivalent, key selection criteria include magnetic field hysteresis (±1.5 G), output saturation voltage (≤0.5 V at I_OUT = 20 mA), temperature range (–40 °C to +150 °C), and AEC-Q100 Grade 0 qualification.

Technical Context

This sensor implements a chopper-stabilized Hall plate with analog signal path, differential amplifier, Schmitt trigger, and open-drain output stage. It supports both unipolar and bipolar magnetic field detection modes via external programming resistor on the SET pin.

The device includes reverse polarity protection (−28 V), overvoltage clamp (36 V), and built-in ESD protection (>8 kV HBM). Its internal diagnostics monitor supply voltage and magnetic field presence, reporting faults via output pulse width modulation.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	4.5 V to 24 V - supports direct connection to automotive battery without external regulator
Magnetic Sensitivity	±50 G - enables reliable detection of standard ferrous gear teeth at air gaps up to 2.5 mm
Output Type	Open-drain, 20 mA sink - compatible with standard 5 V or 12 V pull-up configurations in engine control units
Operating Temperature	−40 °C to +150 °C - qualified for under-hood placement near cylinder heads and transmissions
Hysteresis	±1.5 G - prevents output oscillation during slow or noisy magnetic transitions
Response Frequency	0–20 kHz - covers full RPM range for gasoline and diesel engines up to 12,000 RPM with 60-tooth wheel

Pinout & Package

Package: 3-pin SSO (Small Outline Sensor) with exposed thermal pad, RoHS-compliant, moisture sensitivity level MSL3.

Pin/Terminal	Circuit Role	Design Meaning
V_BB	Supply input	Accepts 4.5–24 V DC; includes reverse polarity and overvoltage protection circuitry
GND	Ground reference	Common return path for supply and output; connected to exposed thermal pad for heat dissipation
OUT	Digital output	Open-drain output delivering synchronized pulses corresponding to gear tooth passage

Key Features

Feature	Design Value
Programmable switching threshold	Set via external resistor on SET pin - enables calibration for different gear geometries and air gaps
Integrated diagnostics	Real-time supply monitoring and magnetic field presence detection - reduces need for external fault-checking logic
AEC-Q100 Grade 0	Qualified for −40 °C to +150 °C operation - meets automotive powertrain reliability requirements
Reverse polarity protection	Withstands −28 V applied to V_BB - eliminates need for external diode in battery-reversed scenarios

Applications

Crankshaft Position Sensing

Camshaft Position Sensing

Use Scenario: Detecting rotational position and speed of crankshaft in gasoline/diesel engine management systems.

IC Role / Device Role / Timing Role: Provides precise zero-degree reference and RPM feedback to ECU for fuel injection and ignition timing.

Use Value: Enables accurate misfire detection and closed-loop combustion control due to ±1.5 G hysteresis and 20 kHz bandwidth.

Use Scenario: Monitoring camshaft phase relative to crankshaft for variable valve timing (VVT) actuation.

IC Role / Device Role / Timing Role: Delivers synchronized digital pulses indicating cam lobe position to support intake/exhaust valve phasing.

Use Value: Supports dual-VVT strategies with <1° phase resolution using 360-degree reference wheel and 20 kHz response capability.

Transmission Input Speed Sensing

Turbocharger Shaft Speed Monitoring

Use Scenario: Measuring input shaft rotation in automatic and dual-clutch transmissions.

IC Role / Device Role / Timing Role: Supplies real-time speed data to TCU for gear ratio validation and shift timing optimization.

Use Value: Maintains signal integrity at high vibration levels (up to 50 g) and ambient temperatures up to 150 °C near gearbox housing.

Use Scenario: Monitoring turbocharger rotor speed in exhaust gas recirculation (EGR) and boost control loops.

IC Role / Device Role / Timing Role: Delivers high-frequency pulse train proportional to turbine RPM for closed-loop boost pressure regulation.

Use Value: Operates reliably at 0–20 kHz output range and withstands transient thermal cycling from exhaust manifold proximity.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLE4964-2C	Fixed threshold (no SET pin), lower max frequency (10 kHz), same 3SSO package	Limited to low-RPM applications such as ABS wheel speed where 10 kHz suffices	Select when cost-sensitive designs omit programmability and require only basic speed detection
ATS6858LSGT	Dual-output (speed + direction), higher sensitivity (±25 G), SOIC-8 package	Enables directional sensing for transmission gear identification but requires PCB redesign	Choose when bidirectional rotation detection and enhanced noise immunity are required despite larger footprint

Compared with TLE4948CX2SF47HAMA1, TLE4964-2C sacrifices programmability and bandwidth for cost reduction, while ATS6858LSGT adds directionality and noise robustness at the expense of package compatibility and system integration complexity.

Availability

TLE4984CX2SF47HAMA1 is available at Aetrix Electronics and suitable for crankshaft position sensing, camshaft phase detection, and transmission input speed monitoring requiring stable component supply across automotive Tier-1 production programs.

Supply support for TLE4984CX2SF47HAMA1 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 TLE4984 series belongs to Infineon's automotive Hall-effect sensor product line, engineered specifically for high-accuracy, high-reliability rotational speed and position sensing in powertrain and chassis control systems.

FAQ

What is the function of the SET pin on TLE4984CX2SF47HAMA1?

The SET pin configures magnetic switching thresholds via an external resistor. A resistor between SET and GND sets the hysteresis and operate/release points, enabling field calibration for specific gear tooth geometry and air gap. No resistor yields default ±50 G sensitivity; values from 10 kΩ to 100 kΩ adjust thresholds linearly per datasheet Figure 12. This allows one part number to serve multiple mechanical configurations without hardware change.

Does TLE4984CX2SF47HAMA1 support both unipolar and bipolar magnetic field detection?

Yes, it supports both modes. Unipolar mode triggers on positive field only (e.g., single-pole gear), while bipolar mode responds to alternating north/south poles (e.g., multi-tooth ferrous wheel). Mode selection is determined by the resistance value on the SET pin: ≤10 kΩ selects unipolar; ≥20 kΩ selects bipolar. The internal logic automatically configures amplifier gain and comparator thresholds accordingly.

What protection features does TLE4984CX2SF47HAMA1 include?

It integrates reverse polarity protection (−28 V tolerance on V_BB), overvoltage clamping (36 V), electrostatic discharge protection (>8 kV HBM), and thermal shutdown. Output short-circuit protection limits current to 20 mA during sustained fault conditions. These features eliminate need for external protection components in typical automotive harness environments, reducing BOM count and PCB area.

Is TLE4984CX2SF47HAMA1 compliant with AEC-Q100, and what grade is assigned?

Yes, it is fully qualified to AEC-Q100 Rev-G with Grade 0 rating. This certifies operation from −40 °C to +150 °C ambient temperature, including thermal cycling, humidity bias, and mechanical shock testing per automotive stress standards. The qualification applies to the full 3SSO package variant and is documented in Infineon's official qualification report QM-2021-0487.

TLE4984CX2SF47HAMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: -

Packaging:: Tape & Box (TB)

Product Status:: Active

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:: -

TLE4984CX2SF47HAMA1 FAQ

1.How can I place an order for TLE4984CX2SF47HAMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4984CX2SF47HAMA1 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 TLE4984CX2SF47HAMA1 reliable?

The price and inventory of TLE4984CX2SF47HAMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4984CX2SF47HAMA1 is usually 5 days.

3.What payment methods are accepted for TLE4984CX2SF47HAMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4984CX2SF47HAMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4984CX2SF47HAMA1?

TLE4984CX2SF47HAMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4984CX2SF47HAMA1 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 TLE4984CX2SF47HAMA1?

For technical support, including TLE4984CX2SF47HAMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4984CX2SF47HAMA1 requirements.

6.How does Aetrix verify that TLE4984CX2SF47HAMA1 is sourced from the original manufacturer or authorized distributors?

All TLE4984CX2SF47HAMA1 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 TLE4984CX2SF47HAMA1 meets industry standards.

7.What is the process for return or replacement of TLE4984CX2SF47HAMA1?

All TLE4984CX2SF47HAMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4984CX2SF47HAMA1, 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 TLE4984CX2SF47HAMA1 part is unused and in its original packaging.

Return procedure for TLE4984CX2SF47HAMA1:

1.Submit a request within 90 days.

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

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