TLE4945L Equivalent & Substitute Parts

Part Overview

The TLE4945L is a bipolar magnetic switch utilizing Hall Effect technology in a 3-SSIP surface-mount package. Manufactured by Infineon Technologies, this component functions as a digital switch with open collector output, designed to detect both north and south pole magnetic fields. The product is currently obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

TLE4945L

Infineon TechnologiesIn Stock: 41086TLE4945L Datasheet

Current PartRFQ

TLE4906LHALA1

Infineon TechnologiesIn Stock: 3742TLE4906LHALA1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLE4945L is constrained by the following critical parameters:

Package Compatibility: The substitute must utilize the identical 3-SSIP, SSO-3-02 package to ensure mechanical and electrical compatibility with existing PCB layouts and through-hole mounting requirements.

Output Configuration: Open collector output type is mandatory to maintain signal interface compatibility with downstream circuitry.

Hall Effect Technology: The substitute must employ Hall Effect sensing technology to preserve the magnetic detection principle.

Temperature Range: Operating temperature range of -40°C to 150°C (TJ) establishes the thermal operating envelope.

Supply Voltage Compatibility: The substitute supply voltage range must overlap with or encompass the original 3.8V to 24V specification to ensure reliable operation across the intended power supply range.

The TLE4906LHALA1 is identified as a direct substitute based on these parameters. While this component differs in polarization mode (unipolar versus bipolar) and sensing thresholds, it maintains compatibility across all mandatory mechanical and electrical interface requirements.

Parameter Comparison

Engineering Selection Recommendations

The TLE4906LHALA1 is the designated substitute for the obsolete TLE4945L. Selection of this component is supported by the following factors:

Product Status: The TLE4906LHALA1 maintains active product status with Infineon Technologies, ensuring continued availability and manufacturing support. The TLE4945L is obsolete and no longer manufactured.

Regulatory Compliance: The TLE4906LHALA1 carries AEC-Q100 automotive qualification and ROHS3 compliance certification, providing enhanced reliability assurance for critical applications. Both components maintain REACH Unaffected status.

Package Compatibility: Identical 3-SSIP, SSO-3-02 package specification ensures direct mechanical substitution without PCB redesign.

Electrical Interface: Both components feature open collector output with temperature-compensated Hall Effect sensing, maintaining functional compatibility at the circuit interface level.

Operating Envelope: The TLE4906LHALA1 operating temperature range (-40°C to 150°C TJ) matches the original specification. Supply voltage range (2.7V to 18V) overlaps the lower and mid-range of the original specification (3.8V to 24V).

Frequently Asked Questions (FAQ)

Q: Can the TLE4906LHALA1 directly replace the TLE4945L without PCB modifications?

A: Yes. Both components utilize identical 3-SSIP, SSO-3-02 package specifications and through-hole mounting configuration, enabling direct mechanical substitution without PCB layout changes.

Q: What is the primary functional difference between these components?

A: The TLE4945L is a bipolar switch detecting both north and south pole magnetic fields with 6mT trip and -6mT release thresholds. The TLE4906LHALA1 is a unipolar switch detecting south pole magnetic fields with 13.5mT trip and 5mT release thresholds. Application requirements determine which sensing characteristic is appropriate.

Q: Are there supply voltage considerations for substitution?

A: The TLE4906LHALA1 supply voltage range (2.7V to 18V) does not extend to the full 24V upper limit of the original TLE4945L (3.8V to 24V). Systems operating at supply voltages above 18V require verification of circuit design compatibility or alternative component selection.

Q: What output current limitations apply to the substitute?

A: The TLE4906LHALA1 maximum output current is 20mA, compared to 100mA for the TLE4945L. Applications requiring output currents exceeding 20mA must incorporate external driver circuitry or select alternative components.

Q: Does the TLE4906LHALA1 carry automotive qualification?

A: Yes. The TLE4906LHALA1 is AEC-Q100 qualified and suitable for automotive applications. The original TLE4945L does not specify automotive qualification.

Q: Are both components RoHS compliant?

A: The TLE4906LHALA1 is ROHS3 compliant. The TLE4945L does not specify RoHS compliance status in the provided data.