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

Infineon Technologies TLE49611MXTMA1

Name: TLE49611MXTMA1
Brand: Infineon Technologies
SKU: TLE49611MXTMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE49611MXTMA1

Manufacturer:: Infineon Technologies

Category:: Switches (Solid State)

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: TLE49611MXTMA1.pdf

Description:: MAGNETIC SWITCH LATCH SOT23-3

Quantity:: RFQ Add To RFQ list

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Inventory:19,460

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Product details

Overview

TLE49611MXTMA1 from Infineon Technologies is a bipolar Hall effect latch IC designed for high-precision position sensing in automotive powertrain and body electronics. It operates from 3.0 V to 32 V supply, features ±2 mT magnetic switching thresholds (BOP/BRP), 0.35 µs typical output jitter, open-drain output, and AEC-Q100 qualified operation from −40°C to +170°C - enabling robust index counting with pole wheels in window lifters and power closing systems.

For engineers reviewing the TLE49611MXTMA1 datasheet, TLE49611MXTMA1 pinout, TLE49611MXTMA1 application, or TLE49611MXTMA1 equivalent, key selection criteria include magnetic threshold stability over temperature, load-dump tolerance up to 42 V without external components, reverse polarity protection to −18 V, and integrated overcurrent/overtemperature protection for under-hood reliability.

Technical Context

The TLE49611MXTMA1 integrates a spinning Hall probe with chopper-stabilized amplifier, demodulator, low-pass filter, and comparator with hysteresis - delivering precise latching behavior with minimal offset drift. Its internal voltage regulator enables stable operation across wide input ranges, while active error compensation maintains threshold accuracy over temperature.

Functional block sequencing is controlled by an internal oscillator and sequencer, ensuring deterministic start-up behavior and consistent timing. The device uses open-drain output topology with internal current limiting and saturation voltage monitoring, supporting direct interface to 5 V or 12 V pull-up rails without external buffering.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	3.0 V to 32 V - supports direct connection to automotive battery rail including cold-crank (≥3 V) and load-dump transients (up to 42 V without external resistor).
Magnetic Switching Thresholds	BOP = +2 mT, BRP = −2 mT - enables precise, repeatable latching with standard ferrous pole wheels and tight mechanical air gaps.
Output Jitter	Typ. 0.35 µs - ensures reliable timing in high-speed index counting applications such as motor commutation feedback or gear tooth sensing.
Operating Temperature	−40°C to +170°C - qualified per AEC-Q100 Grade 0, suitable for engine bay, transmission, and brake module mounting locations.
ESD Protection	±4 kV HBM - eliminates need for external TVS diodes in most automotive PCB layouts, reducing BOM count and board space.
Reverse Polarity Protection	Withstands −18 V - protects against battery misconnection during service or assembly without external diode.
Supply Current	1.6 mA at 25°C - enables low-power always-on sensing in wake-up or diagnostic circuits without excessive thermal loading.

Pinout & Package

Delivered in PG-SOT23-3-15 package: surface-mount, 3-pin, lead-free, RoHS-compliant small-outline transistor outline with exposed thermal pad (not electrically connected). Dimensions: 2.9 mm × 1.3 mm × 1.0 mm (L × W × H); pitch = 0.95 mm.

Pin/Terminal	Circuit Role	Design Meaning
1 - VDD	Positive supply input	Accepts 3.0–32 V DC; internal regulator derives bias for all analog/digital blocks; tolerates 42 V transient without damage.
2 - Q	Open-drain output	Sinks current when active (latched); requires external pull-up; supports 5 V/12 V logic levels; current-limited to 20 mA max.
3 - GND	Ground reference	Common return path for supply and output; connects to PCB ground plane; critical for EMI suppression and magnetic field reference.

Key Features

Feature	Design Value
Chopper-stabilized Hall sensor	Eliminates offset drift and 1/f noise, enabling stable ±2 mT thresholds across full temperature range.
Integrated overtemperature shutdown	Disables output above 180°C junction temperature and auto-recovers on cooldown - prevents thermal runaway in sealed modules.
Load-dump tolerant design	Operates continuously at 32 V and survives 42 V transients per ISO 7637-2 Pulse 5a without external clamping components.
Reverse polarity protected input	Withstands −18 V applied to VDD with no latch-up or parametric shift - simplifies service and manufacturing handling.
Low-jitter digital output	0.35 µs typical propagation delay variation ensures sub-degree angular resolution in rotary position sensing.

Applications

Power Window Lift Control

Electric Parking Brake Actuator

Use Scenario: Detects rotational position of window motor shaft via embedded pole wheel to enable soft-stop, anti-pinch, and position memory functions.

IC Role / Device Role / Timing Role: Bipolar latch provides edge-triggered, direction-agnostic index pulses synchronized to gear teeth; open-drain output interfaces directly to MCU GPIO with pull-up.

Use Value: ±2 mT thresholds ensure consistent triggering across air gap variations (0.5–2.0 mm); 170°C rating allows placement near motor housing.

Use Scenario: Monitors actuator motor rotation to verify parking brake engagement/disengagement and detect mechanical stall conditions.

IC Role / Device Role / Timing Role: Latch output toggles on each pole transition; MCU counts edges to determine absolute position and speed; jitter <0.35 µs avoids missed counts at 500 RPM.

Use Value: 32 V operating range supports direct battery connection; reverse polarity protection prevents field-service damage during replacement.

Engine Camshaft Position Sensing

Transmission Gear Selector Feedback

Use Scenario: Mounted adjacent to camshaft tone wheel to provide cylinder identification and ignition timing signals in gasoline and diesel engines.

IC Role / Device Role / Timing Role: High-temperature latch delivers clean, jitter-free square wave to ECU; internal regulation rejects battery ripple and alternator noise.

Use Value: AEC-Q100 Grade 0 qualification and −40°C to +170°C operation ensure reliability in proximity to hot exhaust manifolds.

Use Scenario: Senses detent positions of manual or electronic gear selector lever using fixed magnet and moving ferrous target.

IC Role / Device Role / Timing Role: Provides discrete ON/OFF state for each gear position; hysteresis prevents chatter during mechanical settling.

Use Value: 1.6 mA supply current enables always-on status monitoring without draining 12 V battery; ESD robustness reduces field failure in service bays.

Equivalent & Alternatives

The following parts are listed as comparable options for similar bipolar Hall latch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Melexis US1881EUA-ABA-002-SP	Wider BOP/BRP spread (±3.5 mT), higher supply current (3.5 mA), no load-dump tolerance beyond 28 V.	Lacks 42 V transient immunity and AEC-Q100 Grade 0 rating; limited to cabin or less harsh environments.	Prefer for cost-sensitive non-under-hood applications where tighter threshold control is not required.
Allegro A1220LUA-T	Lower temperature range (−40°C to +150°C), no reverse polarity protection, BOP/BRP = ±3.0 mT.	Not qualified for engine bay use; requires external reverse-battery diode and transient clamping.	Select only when footprint compatibility is mandatory and thermal margin ≥20°C is available.

Compared with US1881EUA-ABA-002-SP and A1220LUA-T, TLE49611MXTMA1 offers superior thermal margin (+20°C), integrated 42 V load-dump survival, and reverse polarity resilience - making it the only choice for direct-fit replacement in AEC-Q100 Grade 0 powertrain modules.

Availability

TLE49611MXTMA1 is available at Aetrix Electronics and suitable for automotive powertrain control, body electronics actuation, and industrial motor feedback systems requiring stable component supply across extended temperature and voltage stress conditions.

Supply support for TLE49611MXTMA1 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 TLE49611MXTMA1 belongs to Infineon's TLE496x bipolar Hall latch family, engineered specifically for high-accuracy, high-reliability position sensing in automotive safety-critical and thermally demanding subsystems.

FAQ

What is the maximum continuous supply voltage for TLE49611MXTMA1?

The device operates continuously at 3.0 V to 32 V DC. It withstands 42 V transients per ISO 7637-2 Pulse 5a for up to 400 ms without external components - verified in the official datasheet Revision 1.2, Section 3.2 and Table 3. This capability eliminates need for external overvoltage clamping in most automotive designs.

Does TLE49611MXTMA1 require an external pull-up resistor on the Q pin?

Yes - the Q pin is an open-drain output and requires an external pull-up resistor to a logic-compatible voltage (e.g., 5 V or 12 V). Typical values range from 2.2 kΩ to 10 kΩ depending on rise time and bus capacitance. No internal pull-up is present, as confirmed in Section 2.3 and Figure 7 of the datasheet.

How does the device behave during power-up at extreme temperatures?

At power-on, the TLE49611MXTMA1 enters a defined start-up sequence with tPON ≤ 100 µs (typ.) across −40°C to +170°C, as shown in Figure 19 and Section 2.6. Output remains high-impedance until internal regulation stabilizes, preventing false triggers during brown-out or cold-crank conditions.

Is the PG-SOT23-3-15 package thermally enhanced?

The PG-SOT23-3-15 package includes an exposed thermal pad on the bottom side (non-electrical), which must be soldered to a PCB copper pour for optimal thermal performance. Thermal resistance θ_JA is 220 K/W with 1 cm² 2-oz copper; this is specified in Section 4.1 and Figure 11 of the datasheet.

TLE49611MXTMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Latch

Technology:: Hall Effect

Polarization:: South Pole

Sensing Range:: 3.5mT Trip, -3.5mT Release

Test Condition:: 25°C

Voltage - Supply:: 3V ~ 32V

Current - Supply (Max):: 2.5mA

Current - Output (Max):: 25mA

Output Type:: Open Drain

Features:: Temperature Compensated

Operating Temperature:: -40°C ~ 170°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: PG-SOT23-3-15

TLE49611MXTMA1 FAQ

1.How can I place an order for TLE49611MXTMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE49611MXTMA1 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 TLE49611MXTMA1 reliable?

The price and inventory of TLE49611MXTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE49611MXTMA1 is usually 5 days.

3.What payment methods are accepted for TLE49611MXTMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE49611MXTMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE49611MXTMA1?

TLE49611MXTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE49611MXTMA1 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 TLE49611MXTMA1?

For technical support, including TLE49611MXTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE49611MXTMA1 requirements.

6.How does Aetrix verify that TLE49611MXTMA1 is sourced from the original manufacturer or authorized distributors?

All TLE49611MXTMA1 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 TLE49611MXTMA1 meets industry standards.

7.What is the process for return or replacement of TLE49611MXTMA1?

All TLE49611MXTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE49611MXTMA1, 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 TLE49611MXTMA1 part is unused and in its original packaging.

Return procedure for TLE49611MXTMA1:

1.Submit a request within 90 days.

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

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