Infineon Technologies TLV49611TBXALA1
- Part No.:
- TLV49611TBXALA1
- Manufacturer:
- Infineon Technologies
- Category:
- Switches (Solid State)
- Package:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Datasheet:
-
TLV49611TBXALA1.pdf
- Description:
- MAGNETIC SWITCH LATCH TO92
- Quantity:
- Payment:

- Shipping:

Inventory:1,814
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Product details
Overview
TLV49611TBXALA1 from Infineon Technologies is a bipolar Hall effect latch IC designed for precise rotor position detection and index counting in brushless DC motors and white goods. It operates from 3.0 V to 26 V, delivers ±2 mT magnetic operate/release thresholds (BOP/BRP), features open-drain output, and supports -40°C to +125°C ambient temperature with 1.6 mA supply current.
For engineers reviewing the TLV49611TBXALA1 datasheet, TLV49611TBXALA1 pinout, TLV49611TBXALA1 application, or TLV49611TBXALA1 equivalent, key selection criteria include magnetic threshold stability over temperature, unregulated supply tolerance, latch behavior with hysteresis, and TO92S-3-2 package compatibility for through-hole mounting in space-constrained consumer motor control designs.
Technical Context
The TLV49611TBXALA1 implements a spinning Hall probe with chopper-stabilized amplifier and demodulator to suppress offset drift, enabling high magnetic threshold stability across temperature. Its internal voltage regulator allows direct connection to unregulated 12 V or 24 V rails without external LDO.
Functional block includes oscillator-driven sequencing, low-pass filtering before comparator with hysteresis, and integrated overtemperature/overcurrent protection on the open-drain output stage. The latch toggles output state on magnetic field polarity reversal-no external RC timing required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.0 V to 26 V - enables direct interface with automotive or industrial unregulated rails without pre-regulation |
| Magnetic BOP / BRP | ±2 mT - provides precise, symmetric switching thresholds for reliable pole-wheel edge detection |
| Output Type | Open-drain - allows wired-OR configuration and flexible pull-up voltage selection up to 26 V |
| Supply Current | 1.6 mA - minimizes power draw in battery-backed or energy-sensitive applications |
| Operating Temp | -40°C to +125°C - supports deployment in motor housings and appliance enclosures with wide thermal excursions |
| ESD Robustness | ±4 kV HBM - ensures reliability during manual handling and PCB assembly without additional protection circuitry |
Pinout & Package
TLV49611TBXALA1 is housed in the TO92S-3-2 package-a leaded, halogen-free, through-hole plastic package with 2.54 mm pin pitch and standardized footprint for automated insertion and wave soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VDD | Positive supply input - accepts 3.0–26 V unregulated; powers internal regulator and sensing circuitry |
| 2 | GND | Ground reference - common return path for supply and output current; must be low-impedance |
| 3 | Q | Open-drain output - sinks current when active; requires external pull-up to define logic-high level |
Key Features
| Feature | Design Value |
|---|---|
| Spinning Hall probe with chopper stabilization | Eliminates thermal and process-induced offset drift, ensuring ±2 mT threshold stability over full temperature range |
| Integrated overtemperature & overcurrent protection | Automatically disables output during fault conditions, preventing latch damage during short-circuit or overheating events |
| Active error compensation | Corrects for mechanical stress and package-induced magnetic field distortion, improving repeatability in production assemblies |
| Leaded TO92S-3-2 package | Enables legacy through-hole manufacturing while meeting RoHS and halogen-free requirements without performance trade-offs |
Applications
| Brushless DC Motor Commutation | Pole-Wheel Index Counting |
|---|---|
Use Scenario: Detecting rotor magnet polarity in 3-phase BLDC motors to sequence phase energization. IC Role / Device Role / Timing Role: Bipolar latch providing synchronized digital edge transitions aligned to magnet pole transitions. Use Value: Enables precise 120° electrical commutation without interpolation; ±2 mT thresholds ensure consistent timing across temperature and aging. | Use Scenario: Counting gear teeth or slots on rotating shafts in washing machine drums or HVAC blowers. IC Role / Device Role / Timing Role: Magnetic latch generating one pulse per pole transition for accurate speed and position feedback. Use Value: High threshold stability eliminates missed or false counts under vibration or thermal cycling in consumer appliances. |
| Door/ Lid Open-Close Detection | White Goods Position Sensing |
Use Scenario: Monitoring cabinet door status in refrigerators or dishwashers using embedded magnets. IC Role / Device Role / Timing Role: Latch output holds state until opposite magnetic polarity is applied-ideal for bistable position indication. Use Value: Eliminates need for microcontroller polling; open-drain output interfaces directly with 3.3 V or 5 V logic inputs. | Use Scenario: Sensing drum rotation direction and stop position in front-load washers for detergent dispensing and spin balance. IC Role / Device Role / Timing Role: Provides robust, ESD-hardened magnetic feedback in humid, high-vibration environments. Use Value: ±4 kV HBM rating and -40°C to +125°C operation ensure long-term reliability without conformal coating or shielding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bipolar Hall latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLE4961-1M | Same pinout, higher ESD (±8 kV), automotive AEC-Q100 qualified | Designed for engine bay and transmission control; wider qualification scope | Select when automotive qualification or enhanced ESD is mandatory |
| AL3320EUA-T | Dual-output (latch + switch), 2.7–24 V supply, SOT-23 package | Surface-mount only; lacks overtemperature protection and chopper stabilization | Select when board space is constrained and dual functionality offsets reduced robustness |
Compared with TLE4961-1M and AL3320EUA-T, TLV49611TBXALA1 offers optimal balance of cost, through-hole manufacturability, and precision threshold stability for consumer-grade motor control-without automotive overhead or SMT layout constraints.
Availability
TLV49611TBXALA1 is available at Aetrix Electronics and suitable for brushless DC motor commutation, pole-wheel index counting, and white goods position sensing requiring stable component supply across multi-year production cycles.
Supply support for TLV49611TBXALA1 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, sensor, and automotive ICs, with global manufacturing and quality certification to ISO/TS 16949 and IATF 16949 standards.
The TLV4961x family belongs to Infineon's Sense & Control product line, engineered specifically for high-precision, temperature-stable magnetic sensing in cost-sensitive consumer and industrial motion control systems.
FAQ
What is the magnetic sensitivity polarity configuration of TLV49611TBXALA1?
The TLV49611TBXALA1 is a bipolar latch: it turns ON (pulls output low) when exposed to a south pole (B > +2 mT), and remains latched until exposed to a north pole (B < –2 mT), at which point it turns OFF (output floats). This behavior is defined by its symmetric ±2 mT operate and release thresholds and is confirmed in Figure 5 and Table 7 of the 2019 datasheet.
Can TLV49611TBXALA1 operate directly from a 24 V battery without regulation?
Yes. The device supports 3.0 V to 26 V supply voltage and contains an internal voltage regulator, allowing direct connection to unregulated 24 V systems such as appliance main boards or industrial motor drives without external LDO or Zener clamping, as specified in Section 3.3 and Figure 7 of the datasheet.
Is a pull-up resistor required for the Q output?
Yes. The Q pin is an open-drain output and requires an external pull-up resistor to define the logic-high voltage level. Typical values range from 2.2 kΩ to 10 kΩ, connected between Q and any supply up to 26 V. No pull-down is needed, and the output actively sinks up to 20 mA, per Section 2.3 and Figure 7.
Does TLV49611TBXALA1 include built-in protection against reverse polarity or overvoltage?
No. TLV49611TBXALA1 does not integrate reverse-polarity or overvoltage protection. It relies on proper system-level design-such as series diode or TVS-since absolute maximum rating for VDD is 30 V and reverse voltage is –0.3 V. Protection must be implemented externally, as stated in Table 3 (Absolute Maximum Ratings).
TLV49611TBXALA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Packaging:
- Cut Tape (CT)
- 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 ~ 26V
- Current - Supply (Max):
- 2.5mA
- Current - Output (Max):
- 25mA
- Output Type:
- Open Drain
- Features:
- Temperature Compensated
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-92
TLV49611TBXALA1 FAQ
1.How can I place an order for TLV49611TBXALA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV49611TBXALA1 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 TLV49611TBXALA1 reliable?
The price and inventory of TLV49611TBXALA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV49611TBXALA1 is usually 5 days.
3.What payment methods are accepted for TLV49611TBXALA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV49611TBXALA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV49611TBXALA1?
TLV49611TBXALA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV49611TBXALA1 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 TLV49611TBXALA1?
For technical support, including TLV49611TBXALA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV49611TBXALA1 requirements.
6.How does Aetrix verify that TLV49611TBXALA1 is sourced from the original manufacturer or authorized distributors?
All TLV49611TBXALA1 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 TLV49611TBXALA1 meets industry standards.
7.What is the process for return or replacement of TLV49611TBXALA1?
All TLV49611TBXALA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV49611TBXALA1, 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 TLV49611TBXALA1 part is unused and in its original packaging.
Return procedure for TLV49611TBXALA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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