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Infineon Technologies TLI49611LHALA1
- Part No.:
- TLI49611LHALA1
- Manufacturer:
- Infineon Technologies
- Category:
- Switches (Solid State)
- Package:
- -
- Datasheet:
-
TLI49611LHALA1.pdf
- Description:
- MAGNETIC SWITCH IC HALL EFF 3SSO
- Quantity:
- Payment:
- Shipping:
Inventory:2,290
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Product details
Overview
TLI49611LHALA1 from Infineon Technologies is a bipolar Hall effect latch IC designed for precision rotor position sensing and index counting in industrial motor control systems. It operates from 3.0 V to 32 V supply, features ±2 mT magnetic operate/release thresholds (BOP/BRP), open-drain output, and supports -40°C to +125°C ambient temperature with typ. 0.35 µs jitter.
For engineers reviewing the TLI49611LHALA1 datasheet, TLI49611LHALA1 pinout, TLI49611LHALA1 application, or TLI49611LHALA1 equivalent, this device is selected for high-stability latching in unregulated 12–24 V DC industrial environments where reverse polarity (-18 V) and 42 V overvoltage tolerance without external resistor are critical design requirements.
Technical Context
The TLI49611LHALA1 integrates a Hall sensor, amplifier, Schmitt trigger, and open-drain NMOS output stage in a single die. Its latch behavior retains state until opposite-polarity magnetic field exceeds BRP, enabling robust edge detection in rotating pole-wheel systems.
Internal active error compensation stabilizes BOP/BRP across temperature and supply voltage variations, while ESD protection exceeds 4 kV HBM. The device requires no external components for basic operation and supports direct connection to microcontroller GPIO or PLC input modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.0 V to 32 V - enables direct use on unregulated industrial rails (e.g., 24 V nominal with load dump transients) |
| Magnetic Thresholds | BOP = +2 mT, BRP = −2 mT - precise, symmetric latching ideal for pole-wheel index detection |
| Output Type | Open-drain NMOS - allows wired-OR configuration and level-shifting to 3.3 V or 5 V logic |
| Jitter | Typ. 0.35 µs - ensures sub-degree angular resolution in BLDC commutation timing |
| Operating Temperature | −40°C to +125°C - qualified for harsh industrial enclosures and motor proximity mounting |
| ESD Protection | ≥4 kV HBM - sustains handling and board-level electrostatic events without shielding |
| Reverse Polarity | Withstands −18 V - eliminates need for series diode in battery-powered or field-wirable equipment |
Pinout & Package
TLI49611LHALA1 uses the PG-SSO-3-2 leaded, non-halogen-free surface-mount package (3-pin, 2.08 mm × 1.35 mm footprint). Pin 1: VDD; Pin 2: GND; Pin 3: Q (open-drain output).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Positive supply input | Accepts 3.0–32 V DC; internal regulation powers analog core and protects against 42 V transients |
| 2 - GND | Reference ground | Common return for supply and output; must be low-impedance to minimize switching noise coupling |
| 3 - Q | Open-drain output | Sinks current when active; requires external pull-up to define logic-high level and drive strength |
Key Features
| Feature | Design Value |
|---|---|
| Active error compensation | Reduces BOP/BRP drift to <±0.1 mT over full temperature and supply range, enabling single-threshold calibration |
| Overvoltage capability | Withstands 42 V transient without external resistor - simplifies power-stage protection in 24 V systems |
| Reverse polarity protection | Operates safely at −18 V - eliminates need for series blocking diode in field-serviceable wiring |
| Low-jitter switching | 0.35 µs typical propagation delay variation - supports ≤100 kHz mechanical rotation sampling without ambiguity |
| Leaded PG-SSO-3-2 package | RoHS-compliant, non-halogen, and compatible with standard reflow profiles - suitable for legacy industrial assembly lines |
Applications
| Brushless DC Motor Commutation | Pole-Wheel Index Counting |
|---|---|
Use Scenario: Detecting rotor magnet polarity transitions in 3-phase BLDC motors for electronic commutation. IC Role / Device Role / Timing Role: Bipolar latch providing synchronized, jitter-controlled edge signals to MCU timer capture inputs. Use Value: Enables precise 6-step commutation with <±1° electrical angle error over temperature and supply variation. | Use Scenario: Counting teeth or gaps on a rotating ferrous pole wheel in industrial gearmotor feedback. IC Role / Device Role / Timing Role: Latching digital position indicator with hysteresis to reject vibration-induced false triggers. Use Value: Delivers reliable zero-speed indexing and direction detection without debouncing firmware. |
| Industrial Flow Meter Sensing | Valve Position Monitoring |
Use Scenario: Monitoring rotation of impeller magnets in electromagnetic or turbine flow meters. IC Role / Device Role / Timing Role: Magnetic event detector converting mechanical rotation into pulse train for flow rate calculation. Use Value: Maintains accuracy across wide supply (12–32 V) and ambient (−40°C to 125°C) ranges typical in outdoor metering. | Use Scenario: Confirming actuator end-stop positions in pneumatic/hydraulic valve assemblies. IC Role / Device Role / Timing Role: Latched presence/absence indicator for fail-safe closed/open confirmation. Use Value: Provides deterministic, ESD-hardened status signal immune to contact bounce or cable noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Hall latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLI49611MHALA1 | Same die, PG-SOT23-3-15 package - halogen-free, smaller footprint (1.35 mm × 0.95 mm), higher thermal resistance | Preferred for space-constrained PCBs; less suited for high-vibration environments due to smaller solder joint area | Select when board real estate is critical and thermal load is low; verify mechanical retention under shock/vibe specs |
| Melexis US1881EUA-ABA-00 | Unipolar latch, 2.7–24 V supply, ±3.5 mT BOP, no reverse polarity rating, 1.5 µs jitter | Lacks reverse polarity and overvoltage robustness; unsuitable for 24 V industrial rails with load dump risk | Only consider for low-voltage, low-jitter cost-sensitive designs where supply regulation is guaranteed |
Compared with TLI49611LHALA1, the TLI49611MHALA1 offers identical electrical performance in a smaller SMT package but reduced mechanical ruggedness, while the US1881EUA-ABA-00 lacks industrial-grade supply resilience and timing precision required for BLDC or pole-wheel applications.
Availability
TLI49611LHALA1 is available at Aetrix Electronics and suitable for brushless DC motor control, industrial flow metering, valve position monitoring, and pole-wheel indexing requiring stable component supply across extended temperature and voltage ranges.
Supply support for TLI49611LHALA1 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 AG is a German semiconductor manufacturer specializing in power management, sensor, and automotive ICs, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.
TLI49611LHALA1 belongs to Infineon's TLI496x Hall latch product line, engineered specifically for high-precision, high-reliability industrial position sensing where supply instability and thermal drift must be actively compensated.
FAQ
What is the maximum continuous supply voltage the TLI49611LHALA1 can withstand?
The TLI49611LHALA1 supports continuous operation up to 32 V and can withstand transient overvoltage events up to 42 V without external protection components. This rating is validated per absolute maximum specifications in the official Infineon datasheet Revision 1.1, and applies across the full operating temperature range.
Does the TLI49611LHALA1 require an external pull-up resistor on its output?
Yes - the Q pin is an open-drain NMOS output and requires an external pull-up resistor to define the logic-high voltage level. Typical values range from 4.7 kΩ to 10 kΩ, depending on rise time requirements and bus capacitance. No internal pull-up is integrated.
Can the TLI49611LHALA1 be used in automotive applications?
No - the TLI49611LHALA1 is specified and qualified exclusively for industrial applications. Infineon explicitly directs automotive users to its AEC-Q100-qualified TLE Hall switch family (e.g., TLE4961-3U) which include enhanced ESD, EMC, and lifetime validation for vehicle environments.
How is magnetic polarity detected by the TLI49611LHALA1?
The TLI49611LHALA1 is a bipolar latch: it turns ON when exposed to a south pole (B > +2 mT) and remains ON until exposed to a north pole strong enough to reverse the state (B < −2 mT). This hysteresis prevents chatter near threshold and enables reliable direction-agnostic position detection.
TLI49611LHALA1 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:
- -
TLI49611LHALA1 FAQ
1.How can I place an order for TLI49611LHALA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLI49611LHALA1 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 TLI49611LHALA1 reliable?
The price and inventory of TLI49611LHALA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLI49611LHALA1 is usually 5 days.
3.What payment methods are accepted for TLI49611LHALA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLI49611LHALA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLI49611LHALA1?
TLI49611LHALA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLI49611LHALA1 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 TLI49611LHALA1?
For technical support, including TLI49611LHALA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLI49611LHALA1 requirements.
6.How does Aetrix verify that TLI49611LHALA1 is sourced from the original manufacturer or authorized distributors?
All TLI49611LHALA1 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 TLI49611LHALA1 meets industry standards.
7.What is the process for return or replacement of TLI49611LHALA1?
All TLI49611LHALA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLI49611LHALA1, 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 TLI49611LHALA1 part is unused and in its original packaging.
Return procedure for TLI49611LHALA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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