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Infineon Technologies TLE49611LHALA1
- Part No.:
- TLE49611LHALA1
- Manufacturer:
- Infineon Technologies
- Category:
- Switches (Solid State)
- Package:
- 3-SSIP, SSO-3-02
- Datasheet:
-
TLE49611LHALA1.pdf
- Description:
- MAGNETIC SWITCH LATCH SSO-3-2
- Quantity:
- Payment:
- Shipping:
Inventory:3,830
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Product details
Overview
TLE49611LHALA1 from Infineon Technologies is a bipolar Hall effect latch IC designed for high-precision position sensing in automotive powertrain and body control modules. It operates from 3.0 V to 32 V supply, delivers ±2 mT magnetic switching thresholds (BOP/BRP), exhibits 0.35 µs typical output jitter, and is qualified to AEC-Q100 Grade 0 (−40°C to +170°C) for engine bay and transmission applications.
For engineers reviewing the TLE49611LHALA1 datasheet, TLE49611LHALA1 pinout, TLE49611LHALA1 application, or TLE49611LHALA1 equivalent, this device supports robust index counting with pole wheels, offers integrated reverse polarity and overvoltage protection up to 42 V, and provides open-drain output with active error compensation for noise-immune digital switching in harsh environments.
Technical Context
The TLE49611LHALA1 integrates a spinning Hall probe with chopper-stabilized amplification, demodulation, and comparator-with-hysteresis to deliver stable latching behavior across temperature. Its internal voltage regulator enables operation directly from unregulated automotive battery rails, while built-in overtemperature and overcurrent protection ensures fault resilience without external circuitry.
It uses an open-drain output stage with programmable pull-up compatibility, supports load-dump transients up to 42 V without external resistor, and maintains magnetic threshold stability (±0.1 mT drift over −40°C to +170°C) via active error compensation-critical for reliable edge detection in rotating shaft or gear tooth sensing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.0 V to 32 V - supports direct connection to automotive battery with load-dump tolerance up to 42 V |
| Magnetic BOP / BRP | ±2 mT typ. - enables precise latching with small air gaps and low-field magnets in pole-wheel systems |
| Output Jitter | 0.35 µs typ. - ensures deterministic timing for high-speed RPM measurement up to 20 kHz |
| Operating Temperature | −40°C to +170°C - qualified for under-hood placement in engines and transmissions |
| ESD Protection | ±8 kV HBM - eliminates need for external TVS in most automotive PCB layouts |
| Supply Current | 1.6 mA typ. at 12 V - enables low-power always-on sensing for wake-up and diagnostics |
| Output Type | Open-drain N-channel - allows flexible pull-up to 3.3 V, 5 V, or 12 V logic domains |
Pinout & Package
Package: PG-SSO-3-2 - surface-mount, leaded, 3-pin single-side leaded package with exposed die pad for thermal conduction and mechanical robustness in high-vibration environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Supply input | Accepts 3.0–32 V unregulated rail; includes internal regulator and reverse-polarity protection (−18 V) |
| 2 - GND | Reference ground | Common return path for supply and output; tied to exposed pad for thermal dissipation |
| 3 - Q | Digital output | Open-drain N-channel output; sinks current when magnet field exceeds BOP; requires external pull-up |
Key Features
| Feature | Design Value |
|---|---|
| Integrated spinning Hall sensor | Eliminates offset drift and enables stable ±2 mT thresholds across full temperature range |
| Active error compensation | Corrects for thermal and process-induced errors in real time, reducing threshold variation to ±0.1 mT |
| Load-dump tolerant (42 V) | Operates without external resistor during ISO 7637-2 pulse 5a/b events, simplifying front-end design |
| Overtemperature & overcurrent protection | Shuts down output and auto-recovers when fault clears-no system-level watchdog required |
| AEC-Q100 Grade 0 qualification | Validated for continuous operation at 170°C junction temperature per automotive reliability standards |
Applications
| Engine Crankshaft Position Sensing | Transmission Gear Selector Detection |
|---|---|
Use Scenario: Detecting teeth on a rotating crankshaft wheel to determine engine speed and top-dead-center position. IC Role / Device Role / Timing Role: Bipolar Hall latch providing synchronized digital edges aligned to physical gear features. Use Value: Sub-microsecond jitter enables accurate ignition timing at 8,000 RPM; ±2 mT thresholds allow use with low-cost ferrite magnets and 1.5 mm air gaps. | Use Scenario: Monitoring mechanical detent positions of a PRNDL lever in automatic transmission assemblies. IC Role / Device Role / Timing Role: Latching position switch that holds state between gear changes and rejects vibration-induced false triggers. Use Value: High hysteresis (0.4 mT) prevents chatter during shift transitions; 170°C rating supports placement near hot valve bodies. |
| Power Window Lift Detection | Electric Parking Brake Actuator Feedback |
Use Scenario: Counting rotations of a window lift motor's worm gear to detect glass position and prevent pinch detection failure. IC Role / Device Role / Timing Role: Index counter using pole wheel to generate one pulse per revolution for absolute position estimation. Use Value: Stable BOP/BRP over temperature avoids missed counts during cold start or summer soak; 32 V operation supports 24 V commercial vehicle variants. | Use Scenario: Confirming actuator motor rotation and brake pad engagement in electronic parking brake (EPB) modules. IC Role / Device Role / Timing Role: Safety-critical latched feedback sensor verifying mechanical motion completion before releasing hold torque. Use Value: AEC-Q100 qualification and dual-fault protection (overtemp + overcurrent) meet ASIL-B functional safety requirements without additional monitoring ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Hall latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Melexis US1881EUA-ABA-002-REEL | Lower max operating temperature (150°C), no integrated overvoltage protection beyond 24 V | Suitable for cabin modules but not under-hood; requires external TVS for load-dump immunity | Select if cost-sensitive and operating below 150°C with regulated supply |
| NXP TLE4922CXTMA1 | Wider BOP/BRP spread (±3.5 mT), higher jitter (1.2 µs), no AEC-Q100 Grade 0 rating | Limited to non-critical body applications; lacks thermal margin for transmission integration | Choose only for legacy designs where ±3.5 mT tolerance is acceptable and 170°C is not required |
Compared with US1881EUA-ABA-002-REEL and TLE4922CXTMA1, the TLE49611LHALA1 uniquely combines 170°C operation, 42 V load-dump tolerance, and sub-µs jitter-enabling single-part solutions for high-reliability engine, transmission, and EPB sensing without supplemental protection or calibration.
Availability
TLE49611LHALA1 is available at Aetrix Electronics and suitable for automotive powertrain sensing, transmission position feedback, and electric parking brake actuation requiring stable component supply across extended temperature and voltage ranges.
Supply support for TLE49611LHALA1 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 leadership in AEC-Q100-qualified devices for safety-critical systems.
The TLE49611LHALA1 belongs to Infineon's TLE496x Hall latch product line, engineered specifically for high-precision, high-temperature rotational and linear position sensing in automotive propulsion and chassis systems.
FAQ
What is the maximum allowable supply voltage transient the TLE49611LHALA1 can withstand?
The TLE49611LHALA1 sustains 42 V load-dump transients per ISO 7637-2 Pulse 5a/b without external components. This rating applies to short-duration (≤400 ms) overvoltage events at ambient temperatures up to 85°C. Internal protection circuitry clamps and limits power dissipation to prevent latch-up or permanent damage.
Does the TLE49611LHALA1 require an external pull-up resistor on the Q output?
Yes-the Q pin is an open-drain N-channel output and must be pulled up externally. Recommended pull-up values range from 1 kΩ (for fast rise times in 12 V systems) to 10 kΩ (for low-current 3.3 V interfaces). The device supports pull-up voltages up to 32 V, enabling direct interface with higher-voltage logic domains.
How does the TLE49611LHALA1 achieve stable magnetic thresholds over temperature?
It employs active error compensation using on-chip temperature sensors and digitally adjusted bias currents within the Hall amplifier chain. This real-time correction reduces BOP/BRP drift to ±0.1 mT over −40°C to +170°C-verified by production test and documented in Figure 14–16 of the datasheet revision 1.2.
Is the PG-SSO-3-2 package RoHS-compliant and lead-free?
Yes-the PG-SSO-3-2 package used for TLE49611LHALA1 is RoHS-compliant and lead-free per EU Directive 2011/65/EU. Lead content is limited to <1000 ppm, and the device meets JEDEC J-STD-020 moisture sensitivity level MSL-3 (floor life 168 hours at 30°C/60% RH).
TLE49611LHALA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 3-SSIP, SSO-3-02
- 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 ~ 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:
- Through Hole
- Supplier Device Package:
- PG-SSO-3-2
TLE49611LHALA1 FAQ
1.How can I place an order for TLE49611LHALA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE49611LHALA1 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 TLE49611LHALA1 reliable?
The price and inventory of TLE49611LHALA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE49611LHALA1 is usually 5 days.
3.What payment methods are accepted for TLE49611LHALA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE49611LHALA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE49611LHALA1?
TLE49611LHALA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE49611LHALA1 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 TLE49611LHALA1?
For technical support, including TLE49611LHALA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE49611LHALA1 requirements.
6.How does Aetrix verify that TLE49611LHALA1 is sourced from the original manufacturer or authorized distributors?
All TLE49611LHALA1 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 TLE49611LHALA1 meets industry standards.
7.What is the process for return or replacement of TLE49611LHALA1?
All TLE49611LHALA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE49611LHALA1, 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 TLE49611LHALA1 part is unused and in its original packaging.
Return procedure for TLE49611LHALA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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