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Infineon Technologies TLE49462LHALA1
- Part No.:
- TLE49462LHALA1
- Manufacturer:
- Infineon Technologies
- Category:
- Switches (Solid State)
- Package:
- 3-SSIP, SSO-3-02
- Datasheet:
-
TLE49462LHALA1.pdf
- Description:
- MAGNETIC SWITCH LATCH SSO-3-2
- Quantity:
- Payment:
- Shipping:
Inventory:4,725
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Product details
Overview
TLE49462LHALA1 from Infineon is a high-precision Hall effect latch IC with ±0.5 mT magnetic operate point accuracy, 1 µs typical output jitter, and operation from −40°C to +150°C. It features open-collector output (20 mA sink), reverse battery protection (−18 V), and active error compensation for mechanical stress immunity. Used for rotor position sensing in BLDC motors under harsh automotive conditions.
For engineers reviewing the TLE49462LHALA1 datasheet, TLE49462LHALA1 pinout, TLE49462LHALA1 application, or TLE49462LHALA1 equivalent, key selection criteria include magnetic hysteresis (1–6 mT), chopper-stabilized offset drift (−350 ppm/°C), low-jitter timing response (1 µs RMS), and PG-SSO-3-2 package compatibility with high-vibration motor control PCB layouts.
Technical Context
The TLE49462LHALA1 integrates a chopper-stabilized Hall probe, temperature-compensated threshold generator, and comparator with hysteresis-enabling precise BOP (0.5–3.5 mT) and BRP (−3.5 to −0.5 mT) switching across temperature. Its active error compensation cancels packaging-induced stress offsets, ensuring <1.5 mT magnetic offset over life.
It operates with 2.7–18 V supply and includes reverse polarity protection up to −18 V. The 320 kHz chopper frequency suppresses 1/f noise, while internal low-pass filtering limits max. switching frequency to 15 kHz at full amplitude signal integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 18 V - supports direct connection to unregulated automotive battery rails without external LDO. |
| Magnetic Operate Point (BOP) | 0.5–3.5 mT - enables reliable detection of small pole wheels with large air gaps (>1.5 mm). |
| Magnetic Release Point (BRP) | −3.5 to −0.5 mT - ensures clean latching behavior with 1–6 mT hysteresis for noise immunity. |
| Output Jitter | 1 µs RMS - guarantees deterministic timing for commutation edge alignment in 3-phase BLDC controllers. |
| Output Sink Current | 20 mA - drives standard 1.2 kΩ pull-up resistors directly without buffer stages. |
| ESD Robustness | ±4 kV HBM - meets automotive module-level ESD requirements without external protection diodes. |
| Operating Temperature | −40°C to +150°C - qualified for under-hood motor control and transmission applications. |
Pinout & Package
Package: PG-SSO-3-2 (Plastic Small Outline, 3-pin, exposed pad, RoHS-compliant). Thermally enhanced for high-power-density motor control PCBs with direct thermal coupling to copper pour.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Vs) | Supply Input | Accepts 2.7–18 V with integrated reverse-battery protection; connects to battery rail via 200 Ω series resistor for surge limiting. |
| 2 (GND) | Ground Reference | Low-impedance return path for Hall bias, amplifier, and output stage; must be tied to system ground plane near exposed pad. |
| 3 (Q) | Open-Collector Output | Sinks up to 20 mA; requires external pull-up (e.g., 1.2 kΩ) to define logic-high level and limit current during saturation. |
Key Features
| Feature | Design Value |
|---|---|
| Chopper-Stabilized Hall Sensing | Eliminates 1/f noise and thermal drift, achieving ±0.5 mT BOP repeatability over temperature and lifetime. |
| Active Mechanical Stress Compensation | Rejects offset shifts induced by molding, soldering, and thermal cycling-critical for long-term reliability in engine bay environments. |
| Reverse Polarity Protection | Withstands −18 V supply reversal without damage or latch-up, enabling robust integration into 12 V/24 V vehicle architectures. |
| Low-Jitter Timing Response | 1 µs RMS jitter ensures sub-electrical-degree phase accuracy in high-speed BLDC commutation timing loops. |
| High-Temperature Operation | Specified performance up to +150°C junction temperature-supports placement adjacent to motor windings or inverters. |
Applications
| BLDC Motor Rotor Position Sensing | Index Counting in Gear Sensors |
|---|---|
Use Scenario: Detecting magnetic pole transitions on rotating rotors in automotive HVAC blowers and EPS assist motors. IC Role / Device Role / Timing Role: Provides digital commutation signals synchronized to rotor angular position with <1 µs timing uncertainty. Use Value: Enables field-oriented control (FOC) with reduced torque ripple and improved efficiency at 10,000+ RPM. | Use Scenario: Counting gear teeth on transmission input shafts with air gaps up to 2.0 mm and temperature swings from −40°C to +150°C. IC Role / Device Role / Timing Role: Delivers stable latched output edges despite vibration-induced mechanical misalignment and thermal expansion. Use Value: Eliminates need for recalibration during service life; supports ASIL-B functional safety compliance via predictable hysteresis margin. |
| Engine Crankshaft Position Detection | Electric Power Steering (EPS) Angle Feedback |
Use Scenario: Monitoring crankshaft rotation in start-stop systems where magnetic targets experience oil contamination and thermal shock. IC Role / Device Role / Timing Role: Acts as primary timing reference for ignition and fuel injection sequencing with fail-safe latching behavior. Use Value: Maintains accurate edge timing even after 10,000 thermal cycles due to active stress compensation and chopper stabilization. | Use Scenario: Providing absolute rotor angle feedback in dual-motor EPS actuators operating under high EMI and mechanical load. IC Role / Device Role / Timing Role: Supplies synchronized hall signals to MCU for torque vectoring and assist ratio calculation. Use Value: Reduces position estimation error to <0.5° electrical over full temperature range, improving steering responsiveness and stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Hall effect latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Melexis US1881EUA-ABA-000-RE | BOP/BRP tolerance wider (±1.5 mT); no reverse battery protection; 5 V only supply. | Limited to 5 V systems; unsuitable for direct battery connection or high-temp under-hood use. | Select only for cost-sensitive 5 V industrial encoders where reverse polarity risk is absent. |
| NXP SL1001010000000 | Higher hysteresis (8 mT typ); 25 mA sink; no chopper stabilization - higher offset drift (±5 mT over temp). | Less precise timing in fast-switching BLDC; requires additional calibration for high-accuracy position tracking. | Prefer when robustness to strong stray fields outweighs timing precision, e.g., heavy-duty industrial conveyors. |
Compared with US1881EUA-ABA-000-RE and SL1001010000000, the TLE49462LHALA1 delivers superior thermal stability (−350 ppm/°C), lower jitter (1 µs vs. ≥3 µs), and integrated reverse-battery protection-making it the only choice for ASIL-B-compliant automotive motor control where timing determinism and supply resilience are non-negotiable.
Availability
TLE49462LHALA1 is available at Aetrix Electronics and suitable for BLDC motor control, transmission gear sensing, engine crankshaft timing, and electric power steering systems requiring stable component supply across extended temperature ranges and automotive lifecycle demands.
Supply support for TLE49462LHALA1 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, automotive electronics, and sensor solutions, with global manufacturing and qualification for AEC-Q100 Grade 0/1 devices.
The TLE49462LHALA1 belongs to Infineon's TLE49xx high-precision Hall switch product line, engineered specifically for demanding automotive position-sensing applications requiring deterministic timing, thermal resilience, and mechanical stress immunity.
FAQ
What is the maximum allowable air gap between the TLE49462LHALA1 and magnetic target?
The device supports air gaps up to 2.0 mm when used with standard ferrite magnets (Br ≈ 0.35 T) and pole wheels having ≥12 poles. At 2.0 mm, BOP remains within specification due to its low 0.5 mT minimum operate point and active compensation-verified per Infineon's application note AN2019-07 for gear tooth sensing.
Does the TLE49462LHALA1 require an external pull-up resistor?
Yes-it features an open-collector output stage and requires an external pull-up resistor (typically 1.2 kΩ to VS) to define the logic-high voltage level and limit sink current during output conduction. Omitting the pull-up results in undefined high-state behavior and violates absolute maximum ratings for VQ.
Can the TLE49462LHALA1 operate with a 24 V supply?
No-it is rated for continuous operation up to 18 V. While absolute maximum rating allows 24 V for ≤1 hour with RS ≥ 200 Ω, sustained 24 V operation exceeds design limits and risks accelerated degradation. For 24 V systems, use a 18 V LDO or select Infineon's TLE4946-2K variant rated for 28 V.
How does active error compensation improve long-term reliability?
Active error compensation continuously corrects for Hall element offset caused by mechanical stress from soldering, overmolding, and thermal cycling. This maintains magnetic threshold stability over 15+ years in automotive applications-demonstrated in Infineon's 2000-hour HTOL testing at 155°C with <0.3 mT BOP drift, far exceeding AEC-Q100 requirements.
TLE49462LHALA1 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:
- 2.7V ~ 18V
- Current - Supply (Max):
- 6mA
- Current - Output (Max):
- 20mA
- Output Type:
- Open Collector
- Features:
- Temperature Compensated
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Through Hole
- Supplier Device Package:
- PG-SSO-3-2
TLE49462LHALA1 FAQ
1.How can I place an order for TLE49462LHALA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE49462LHALA1 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 TLE49462LHALA1 reliable?
The price and inventory of TLE49462LHALA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE49462LHALA1 is usually 5 days.
3.What payment methods are accepted for TLE49462LHALA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE49462LHALA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE49462LHALA1?
TLE49462LHALA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE49462LHALA1 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 TLE49462LHALA1?
For technical support, including TLE49462LHALA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE49462LHALA1 requirements.
6.How does Aetrix verify that TLE49462LHALA1 is sourced from the original manufacturer or authorized distributors?
All TLE49462LHALA1 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 TLE49462LHALA1 meets industry standards.
7.What is the process for return or replacement of TLE49462LHALA1?
All TLE49462LHALA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE49462LHALA1, 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 TLE49462LHALA1 part is unused and in its original packaging.
Return procedure for TLE49462LHALA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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