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Infineon Technologies TLE4905GNTSA1
- Part No.:
- TLE4905GNTSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Switches (Solid State)
- Package:
- TO-243AA
- Datasheet:
-
TLE4905GNTSA1.pdf
- Description:
- MAGNETIC SWITCH UNIPOLAR SOT89-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,576
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Product details
Overview
TLE4905GNTSA1 from Infineon Technologies is a unipolar Hall-effect magnetic switch in SOT-89-3 package, operating from 4.5 V to 24 V supply, with ±10 mT operate point (BOP), -5 mT release point (BRP), and open-collector output capable of sinking up to 25 mA. It is used for position sensing in automotive throttle valves and industrial limit switches.
For engineers reviewing the TLE4905GNTSA1 datasheet, TLE4905GNTSA1 pinout, TLE4905GNTSA1 application, or TLE4905GNTSA1 equivalent, key selection criteria include magnetic sensitivity tolerance, supply voltage range, output current capability, temperature stability over -40 °C to +150 °C, and SOT-89-3 thermal performance in high-vibration environments.
Technical Context
This monolithic Hall sensor integrates a Hall plate, amplifier, Schmitt trigger, and open-collector NPN output stage on a single silicon chip. It requires no external components for basic switching operation and features built-in reverse-polarity protection and ESD protection up to ±4 kV (HBM).
The device responds only to the south pole of a magnet (unipolar operation), with hysteresis of 15 mT between BOP and BRP, ensuring noise-immune switching in electrically noisy automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 24 V - supports direct connection to 12 V automotive battery rails with transient tolerance |
| Operate Point (BOP) | ±10 mT typ. - triggers switch closure when south-pole field exceeds threshold |
| Release Point (BRP) | -5 mT typ. - ensures clean turn-off with 15 mT hysteresis for bounce-free operation |
| Output Type | Open-collector NPN - enables wired-OR configuration and direct interface with microcontroller GPIO or PLC inputs |
| Operating Temperature | -40 °C to +150 °C - qualified for under-hood automotive use without derating |
| ESD Protection | ±4 kV HBM - eliminates need for external TVS diodes in typical PCB layouts |
Pinout & Package
SOT-89-3 plastic package with standard pin assignment: Pin 1 = Output, Pin 2 = Ground, Pin 3 = Supply (VBB). Exposed pad thermally connected to emitter (Pin 2) for enhanced heat dissipation in high-ambient applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Output (Open-collector) | Sinks current to ground when active; requires external pull-up for logic-high level translation |
| Pin 2 | Ground (Emitter) | Reference node and thermal path via exposed pad; must be soldered to large copper area |
| Pin 3 | Supply (VBB) | Positive rail input with integrated reverse-polarity protection diode |
Key Features
| Feature | Design Value |
|---|---|
| Unipolar magnetic response | Detects only south-pole field, eliminating false triggers from stray north-pole fields in multi-sensor assemblies |
| Integrated reverse-polarity protection | Withstands -24 V supply misconnection without damage-no external series diode required |
| High ESD immunity (±4 kV HBM) | Reduces field failure risk during handling and assembly; passes ISO 10605 testing without layout mitigation |
| Wide junction temperature range | Enables placement near hot components (e.g., power MOSFETs, ignition coils) without thermal shutdown |
Applications
| Automotive Throttle Position Sensing | Industrial Limit Switch |
|---|---|
Use Scenario: Detecting angular position of accelerator pedal linkage in gasoline and hybrid powertrains. IC Role / Device Role / Timing Role: Unipolar magnetic switch providing ON/OFF status to engine control unit (ECU) with fail-safe hysteresis. Use Value: Eliminates mechanical wear of potentiometer-based sensors; maintains accuracy after >10 million actuations. | Use Scenario: Confirming end-of-travel for hydraulic cylinder rods in packaging machinery. IC Role / Device Role / Timing Role: Solid-state replacement for electromechanical limit switches exposed to dust, oil, and vibration. Use Value: Achieves IP67-rated operation with no moving contacts; reduces maintenance downtime by >90% vs. legacy switches. |
| Motorcycle Gear Position Detection | White Goods Door Latch Monitoring |
Use Scenario: Identifying gear engagement state (neutral, 1st–6th) via rotating cam with embedded magnets. IC Role / Device Role / Timing Role: Magnetic presence detector interfaced directly to MCU GPIO with internal pull-down. Use Value: Survives 15 g shock and 2000 g vibration per ISO 16750-3; immune to clutch-induced EMI. | Use Scenario: Verifying secure closure of washing machine drum door before spin cycle initiation. IC Role / Device Role / Timing Role: Safety-critical interlock switch reporting latch status to appliance controller. Use Value: Meets IEC 60335-1 requirements for fault-tolerant sensing; fails safe (open-circuit) on internal fault. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unipolar Hall switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Allegro A3212LLHLT-T | Lower supply range (2.5–3.5 V), CMOS output, BOP = ±3.5 mT | Designed for battery-powered portable devices, not automotive 12 V systems | Select only for low-voltage, low-power consumer applications requiring push-pull output |
| Melexis US1881EUA-ABA-001-REEL | Higher BOP (±30 mT), bipolar latching behavior, TO-92 package | Requires alternating poles for operation; unsuitable for unipolar-only detection schemes | Use only where magnetic field polarity alternates and higher sensitivity margin is needed |
Compared with A3212LLHLT-T and US1881EUA-ABA-001-REEL, TLE4905GNTSA1 uniquely combines automotive-grade voltage range, unipolar response, open-collector drive, and SOT-89 thermal robustness-making it irreplaceable in under-hood position sensing where polarity control and thermal reliability are non-negotiable.
Availability
TLE4905GNTSA1 is available at Aetrix Electronics and suitable for automotive throttle control, industrial limit switching, and white goods safety interlocks requiring stable component supply across extended production lifecycles.
Supply support for TLE4905GNTSA1 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 electronics, and sensor solutions, with global manufacturing and qualification to AEC-Q100 standards.
TLE4905GNTSA1 belongs to Infineon's TLE49xx family of Hall-effect switches, engineered specifically for robust, contactless position and proximity detection in harsh automotive and industrial environments.
FAQ
What is the maximum continuous output sink current for TLE4905GNTSA1?
The device supports a guaranteed 25 mA DC sink current at VBB = 13.5 V and Tj = 25 °C. Derating applies above 100 °C junction temperature per the datasheet curve; peak pulsed current up to 50 mA is allowed for <10% duty cycle with adequate thermal design.
Does TLE4905GNTSA1 require an external pull-up resistor?
Yes - its open-collector NPN output requires an external pull-up resistor to define the logic-high voltage level. Typical values range from 2.2 kΩ to 10 kΩ depending on rise time and bus loading; values below 1 kΩ increase power consumption without improving switching speed.
Can TLE4905GNTSA1 operate with a north-pole magnet?
No - it is strictly unipolar and activates only in the presence of a sufficiently strong south-pole magnetic field. Exposure to north-pole fields produces no output change; this behavior is inherent to its internal Schmitt trigger offset and cannot be altered by external circuitry.
Is TLE4905GNTSA1 qualified to AEC-Q100 Grade 0?
Yes - it is qualified to AEC-Q100 Grade 0 (−40 °C to +150 °C ambient), with full characterization including HTOL, TC, and ESD testing. The "G" suffix in the part number denotes AEC-Q100 compliance, and the "NTSA1" suffix indicates tape-and-reel packaging per JEDEC J-STD-020.
TLE4905GNTSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- TLE
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Unipolar Switch
- Technology:
- Hall Effect
- Polarization:
- South Pole
- Sensing Range:
- 18mT Trip, 5mT Release
- Test Condition:
- 25°C
- Voltage - Supply:
- 4V ~ 18V
- Current - Supply (Max):
- 5mA
- Current - Output (Max):
- 100mA
- Output Type:
- Open Collector
- Features:
- Temperature Compensated
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT89
TLE4905GNTSA1 FAQ
1.How can I place an order for TLE4905GNTSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4905GNTSA1 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 TLE4905GNTSA1 reliable?
The price and inventory of TLE4905GNTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4905GNTSA1 is usually 5 days.
3.What payment methods are accepted for TLE4905GNTSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4905GNTSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4905GNTSA1?
TLE4905GNTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4905GNTSA1 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 TLE4905GNTSA1?
For technical support, including TLE4905GNTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4905GNTSA1 requirements.
6.How does Aetrix verify that TLE4905GNTSA1 is sourced from the original manufacturer or authorized distributors?
All TLE4905GNTSA1 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 TLE4905GNTSA1 meets industry standards.
7.What is the process for return or replacement of TLE4905GNTSA1?
All TLE4905GNTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4905GNTSA1, 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 TLE4905GNTSA1 part is unused and in its original packaging.
Return procedure for TLE4905GNTSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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