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Infineon Technologies TLV49645TBXALA1
- Part No.:
- TLV49645TBXALA1
- Manufacturer:
- Infineon Technologies
- Category:
- Switches (Solid State)
- Package:
- TO-226-3, TO-92-3 Short Body
- Datasheet:
-
TLV49645TBXALA1.pdf
- Description:
- MAGNETIC SWITCH UNIPOLAR TO92S
- Quantity:
- Payment:
- Shipping:
Inventory:1,725
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Product details
Overview
TLV49645TBXALA1 from Infineon Technologies is a unipolar high-precision Hall effect switch in TO92S-3-2 package, featuring open-drain output, 3.0–26 V supply range, 7.5 mT operate point (BOP), 5.0 mT release point (BRP), and 2.5 mT hysteresis-designed for robust position sensing in consumer appliances with -40 °C to +125 °C operation.
For engineers reviewing the TLV49645TBXALA1 datasheet, TLV49645TBXALA1 pinout, TLV49645TBXALA1 application, or TLV49645TBXALA1 equivalent, key selection criteria include magnetic threshold stability across temperature, ESD robustness (>4 kV HBM), unregulated supply tolerance, and leaded TO92S-3-2 mechanical compatibility in space-constrained mounting.
Technical Context
The device implements a spinning-current Hall probe with chopper-stabilized amplification to reject offset drift and mechanical stress-induced errors. Its internal bias generator, oscillator, and demodulator enable stable magnetic switching thresholds independent of supply voltage variation.
Functional blocks include low-pass filtering before the comparator, integrated overcurrent/overtemperature protection on the open-drain output transistor, and active error compensation that maintains ±0.5 mT BOP drift over full temperature range-critical for repeatable mechanical actuation detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.0 V to 26 V - supports direct connection to unregulated 12 V/24 V rails without external regulator. |
| Operating Point (BOP) | 7.5 mT typical - precise magnetic activation threshold for consistent mechanical switch timing. |
| Release Point (BRP) | 5.0 mT typical - ensures clean signal release with 2.5 mT hysteresis to prevent chatter near threshold. |
| Supply Current | 1.6 mA at 25 °C - enables low-power battery or energy-harvesting system integration. |
| ESD Protection | >4 kV HBM - meets IEC 61000-4-2 Level 3 for reliable handling in assembly and end-use environments. |
| Temperature Range | -40 °C to +125 °C - qualified for harsh thermal environments in white goods and industrial controls. |
Pinout & Package
TO92S-3-2 package: leaded, halogen-free, through-hole mount with 2.54 mm pin pitch; optimized for mechanical stability and thermal dissipation in consumer-grade PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VDD | Positive supply input - accepts 3.0–26 V unregulated; internal voltage regulation powers all analog blocks. |
| 2 | GND | Ground reference - common return for Hall sensor, bias circuits, and output stage. |
| 3 | Q | Open-drain output - sinks current when activated; requires external pull-up for logic-level interface. |
Key Features
| Feature | Design Value |
|---|---|
| Chopped Hall architecture | Eliminates offset drift from packaging stress and temperature gradients, enabling <±0.5 mT BOP variation over -40 °C to +125 °C. |
| Integrated protection | Output transistor includes overcurrent and overtemperature shutdown-prevents latch-up during short-circuit or thermal overload. |
| Unregulated supply operation | Stable switching performance across 3.0–26 V eliminates need for pre-regulation in 12 V/24 V systems. |
| Leaded TO92S-3-2 package | Enables manual soldering, rework, and mechanical retention in cost-sensitive consumer assemblies. |
Applications
| Washing Machine Lid Detection | Smart Thermostat Fan Speed Sensing |
|---|---|
|
Use Scenario: Detect lid closure via magnet proximity on rotating drum assembly. IC Role / Device Role / Timing Role: Unipolar Hall switch providing clean ON/OFF signal synchronized to mechanical motion. Use Value: 2.5 mT hysteresis prevents false triggering from vibration; 125 °C rating survives motor heat exposure. |
Use Scenario: Monitor fan blade rotation using embedded magnet on shaft. IC Role / Device Role / Timing Role: Magnetic zero-crossing detector feeding microcontroller interrupt input. Use Value: 1.6 mA supply current extends battery life in wireless thermostat designs; open-drain output interfaces directly with 3.3 V MCU GPIO. |
| Coffee Maker Water Level Switch | Garage Door Position Feedback |
|
Use Scenario: Sense float magnet position to control water fill cycle. IC Role / Device Role / Timing Role: Threshold-based position indicator with fail-safe release behavior. Use Value: 5.0 mT BRP ensures reliable deactivation when float drops; TO92S-3-2 leads withstand repeated thermal cycling in steam environment. |
Use Scenario: Confirm door fully closed/open using dual-magnet actuation sequence. IC Role / Device Role / Timing Role: High-stability magnetic threshold detector for safety-critical position verification. Use Value: ±0.5 mT BOP drift over temperature guarantees consistent actuation across seasonal ambient changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unipolar Hall switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV49645TAXALA1 | TO92S-3-1 package; identical electrical specs but different lead pitch and mold compound height. | Requires PCB footprint revision; less suitable for high-vibration mounts due to lower mechanical rigidity. | Select when legacy board layout uses TO92S-3-1 or when manual soldering accessibility is prioritized over thermal robustness. |
| US5881LUA-AAA-000 | Lower supply range (2.7–24 V); BOP = 6.0 mT; no overtemperature protection on output. | Limited to ambient-temperature applications; unsuitable for motor-near placements. | Choose only for cost-sensitive, non-automotive consumer devices where thermal margin is not critical. |
Compared with TLV49645TBXALA1, TLV49645TAXALA1 offers identical magnetic performance but reduced mechanical stability, while US5881LUA-AAA-000 trades thermal resilience and protection features for lower unit cost-making TLV49645TBXALA1 optimal for thermally demanding, safety-aware position sensing.
Availability
TLV49645TBXALA1 is available at Aetrix Electronics and suitable for washing machine lid detection, smart thermostat fan speed sensing, coffee maker water level control, and garage door position feedback requiring stable component supply across extended temperature ranges and high-volume production cycles.
Supply support for TLV49645TBXALA1 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 AEC-Q200.
TLV49645TBXALA1 belongs to Infineon's TLV496x high-precision Hall switch family, engineered for repeatable magnetic actuation in cost-sensitive consumer and industrial equipment where reliability under thermal and mechanical stress is essential.
FAQ
What is the magnetic field polarity requirement for TLV49645TBXALA1 operation?
The TLV49645TBXALA1 is a unipolar Hall switch that activates only in the presence of a south-pole magnetic field oriented perpendicular to the package top surface (as defined in Figure 9 of the datasheet). It does not respond to north-pole fields or transverse field components-ensuring immunity to stray field interference in multi-sensor assemblies.
Can TLV49645TBXALA1 drive an LED directly without a current-limiting resistor?
No. The output is an open-drain N-channel MOSFET rated for 20 mA continuous sink current, but it lacks internal current limiting. Driving an LED directly risks exceeding safe operating area under varying supply voltages. A series current-limiting resistor must be used-e.g., 1 kΩ for 12 V supply and 10 mA LED current-to ensure long-term reliability.
Is the TO92S-3-2 package RoHS-compliant despite being leaded?
Yes. The TO92S-3-2 package uses leaded terminations meeting J-STD-609 Category 1 (Pb-containing) exemption under RoHS Annex III, permitted for through-hole discrete sensors. The mold compound is halogen-free, and the full device complies with EU RoHS Directive 2011/65/EU as documented in Infineon's compliance certificate SP001283590.
Does TLV49645TBXALA1 require an external capacitor on VDD for stability?
No external bypass capacitor is required per the datasheet. Internal regulation and chopping circuitry provide sufficient noise immunity for typical consumer PCB layouts. However, a 100 nF ceramic capacitor placed within 5 mm of the VDD pin is recommended when operating near EMI sources (e.g., brushless motor drivers) to suppress high-frequency supply coupling.
TLV49645TBXALA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-226-3, TO-92-3 Short Body
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Function:
- Unipolar Switch
- Technology:
- Hall Effect
- Polarization:
- South Pole
- Sensing Range:
- 10.4mT Trip, 2.8mT 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-92S
TLV49645TBXALA1 FAQ
1.How can I place an order for TLV49645TBXALA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV49645TBXALA1 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 TLV49645TBXALA1 reliable?
The price and inventory of TLV49645TBXALA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV49645TBXALA1 is usually 5 days.
3.What payment methods are accepted for TLV49645TBXALA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV49645TBXALA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV49645TBXALA1?
TLV49645TBXALA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV49645TBXALA1 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 TLV49645TBXALA1?
For technical support, including TLV49645TBXALA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV49645TBXALA1 requirements.
6.How does Aetrix verify that TLV49645TBXALA1 is sourced from the original manufacturer or authorized distributors?
All TLV49645TBXALA1 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 TLV49645TBXALA1 meets industry standards.
7.What is the process for return or replacement of TLV49645TBXALA1?
All TLV49645TBXALA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV49645TBXALA1, 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 TLV49645TBXALA1 part is unused and in its original packaging.
Return procedure for TLV49645TBXALA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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