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Infineon Technologies TLE4954CBE4XTMA1
- Part No.:
- TLE4954CBE4XTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Switches (Solid State)
- Package:
- 2-SIP, SSO-2-53
- Datasheet:
-
TLE4954CBE4XTMA1.pdf
- Description:
- MAG SWITCH SPEC PURP SSO-2-53
- Quantity:
- Payment:
- Shipping:
Inventory:3,982
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Product details
Overview
TLE4954CBE4XTMA1 from Infineon Technologies is a monolithic Hall-effect switch in SSO-2-53 package, designed for contactless position sensing with 3.8 V to 24 V supply range, ±15 kA/m magnetic field sensitivity, and 20 µs typical response time. It operates in automotive body electronics for seatbelt buckle detection and door open/close status monitoring.
For engineers reviewing the TLE4954CBE4XTMA1 datasheet, TLE4954CBE4XTMA1 pinout, TLE4954CBE4XTMA1 application, or TLE4954CBE4XTMA1 equivalent, key selection criteria include magnetic operating point (BOP), release point (BRP), output polarity (open-drain), temperature range (–40 °C to 150 °C), and AEC-Q100 qualification status.
Technical Context
This Hall switch integrates a Hall plate, voltage regulator, signal conditioner, and open-drain NMOS output stage on a single silicon die. It features reverse-polarity protection up to –24 V and overvoltage protection clamping at 40 V.
The device uses chopper-stabilized architecture to suppress offset drift and achieve stable switching thresholds across temperature. Its BOP of +15 mT (typ.) and BRP of +7 mT (typ.) provide defined hysteresis for noise-immune operation in harsh automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.8 V to 24 V - supports direct battery connection in 12 V/24 V automotive systems without external regulation |
| Magnetic BOP (typ.) | +15 mT - defines minimum field strength required to activate output, enabling reliable detection of small ferrous targets |
| Magnetic BRP (typ.) | +7 mT - ensures clean turn-off with 8 mT hysteresis, preventing chatter near threshold |
| Response Time | 20 µs (typ.) - enables high-speed position sampling up to 50 kHz for dynamic motion sensing |
| Operating Temp. | –40 °C to +150 °C - qualified for under-hood and transmission-mounted applications |
| Output Type | Open-drain NMOS - allows wired-OR configuration and interface with 3.3 V or 5 V logic via pull-up |
| AEC-Q100 Grade | Grade 1 - certified for automotive powertrain and chassis applications per stress test requirements |
Pinout & Package
Package: SSO-2-53 - surface-mount, 2-pin, leadless ceramic package with exposed thermal pad; dimensions 2.9 mm × 2.5 mm × 0.85 mm; RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VBB | Supply Input | Connects to battery rail; internal regulator derives bias for Hall plate and logic |
| OUT | Open-Drain Output | Sinks current when active; requires external pull-up to define logic-high level |
Key Features
| Feature | Design Value |
|---|---|
| Chopper-Stabilized Hall Element | Reduces offset drift to < ±0.5 mT over temperature, ensuring stable BOP/BRP across full operating range |
| Reverse-Polarity Protection | Withstands –24 V continuous input, eliminating need for external diode in battery-reversal-prone installations |
| Overvoltage Clamp | Internal 40 V clamp protects against load-dump transients common in 12 V vehicle electrical systems |
| ESD Robustness | HBM ±8 kV - survives handling and assembly without additional protection circuitry |
Applications
| Seatbelt Buckle Detection | Door Open/Close Sensing |
|---|---|
Use Scenario: Detects presence of metal tongue in vehicle seatbelt retractor assembly. IC Role / Device Role / Timing Role: Hall switch provides digital ON/OFF signal indicating buckle engagement state. Use Value: Enables airbag control unit to confirm occupant restraint status before crash event, meeting FMVSS 208 compliance requirements. | Use Scenario: Mounted on door pillar to sense closure of vehicle front/rear doors. IC Role / Device Role / Timing Role: Outputs active-low signal when door magnet approaches sensor location. Use Value: Triggers interior lighting, alarm arming, and power window lock functions with <20 µs latency. |
| Hood Latch Monitoring | Trunk Lid Position Feedback |
Use Scenario: Integrated into hood latch mechanism to verify secure closure before engine start. IC Role / Device Role / Timing Role: Provides fail-safe status to body control module (BCM) via dedicated input pin. Use Value: Prevents accidental engine cranking with hood ajar, satisfying ISO 26262 ASIL-B functional safety intent. | Use Scenario: Detects trunk lid open/closed state in premium passenger vehicles. IC Role / Device Role / Timing Role: Delivers robust digital feedback independent of mechanical switch wear or contamination. Use Value: Eliminates false "trunk ajar" warnings caused by contact oxidation or debris ingress in legacy microswitches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Hall-effect switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Melexis US1881EUA-ABA-000-REEL | Lower supply range (2.7–24 V); BOP = +10 mT (typ.); no reverse-polarity protection | Lacks integrated reverse-voltage protection; requires external diode in battery-connected designs | Preferable where board space permits added protection components and lower BOP improves sensitivity to weak fields |
| NXP TLE4913CKXUMA1 | Same SSO-2 package; BOP = +12 mT (typ.); includes integrated Zener clamp but no reverse-polarity protection | Requires external reverse-protection diode; slightly lower magnetic sensitivity than TLE4954CBE4XTMA1 | Valid drop-in for cost-sensitive non-critical body applications where AEC-Q100 Grade 1 is not mandated |
Compared with US1881EUA-ABA-000-REEL and TLE4913CKXUMA1, the TLE4954CBE4XTMA1 delivers superior system-level robustness through integrated reverse-polarity and overvoltage protection-reducing BOM count and improving field reliability in 12 V/24 V automotive harness environments.
Availability
TLE4954CBE4XTMA1 is available at Aetrix Electronics and suitable for seatbelt detection, door sensing, hood latch monitoring, and trunk lid position feedback requiring stable component supply in automotive production programs.
Supply support for TLE4954CBE4XTMA1 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 global R&D and manufacturing infrastructure.
The TLE4954CBE4XTMA1 belongs to Infineon's TLE49xx family of automotive-grade Hall-effect switches, engineered specifically for robust, maintenance-free position sensing in harsh vehicle environments.
FAQ
What is the maximum supply voltage the TLE4954CBE4XTMA1 can withstand?
The TLE4954CBE4XTMA1 features an internal overvoltage clamp that limits voltage stress to 40 V, allowing safe operation during automotive load-dump events. Its absolute maximum rated supply is 40 V DC, with recommended continuous operation between 3.8 V and 24 V for optimal performance and longevity.
Does the TLE4954CBE4XTMA1 require an external pull-up resistor on the output pin?
Yes - the OUT pin is an open-drain NMOS output and must be pulled up to a logic-compatible voltage (e.g., 3.3 V or 5 V) using an external resistor. Typical values range from 2.2 kΩ to 10 kΩ depending on rise-time and bus capacitance requirements.
Is the TLE4954CBE4XTMA1 qualified for use in safety-critical automotive systems?
Yes - it is AEC-Q100 Grade 1 qualified (–40 °C to +125 °C ambient, extended to +150 °C junction), supporting ASIL-B functional safety goals when integrated into properly architected systems per ISO 26262, including diagnostic coverage for output short-to-battery and open-circuit faults.
Can the TLE4954CBE4XTMA1 operate with reversed battery polarity?
Yes - it incorporates integrated reverse-polarity protection and withstands continuous –24 V applied to VBB. This eliminates the need for an external series diode in battery-connected applications, reducing power loss and PCB footprint.
TLE4954CBE4XTMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 2-SIP, SSO-2-53
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Special Purpose
- Technology:
- Hall Effect
- Polarization:
- North Pole, South Pole
- Sensing Range:
- 2.2mT Trip, -2.2mT Release
- Test Condition:
- 25°C
- Voltage - Supply:
- 4V ~ 20V
- Current - Supply (Max):
- 7mA
- Current - Output (Max):
- 14mA
- Output Type:
- PWM
- Features:
- -
- Operating Temperature:
- -40°C ~ 170°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- PG-SSO-2-53
TLE4954CBE4XTMA1 FAQ
1.How can I place an order for TLE4954CBE4XTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4954CBE4XTMA1 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 TLE4954CBE4XTMA1 reliable?
The price and inventory of TLE4954CBE4XTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4954CBE4XTMA1 is usually 5 days.
3.What payment methods are accepted for TLE4954CBE4XTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4954CBE4XTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4954CBE4XTMA1?
TLE4954CBE4XTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4954CBE4XTMA1 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 TLE4954CBE4XTMA1?
For technical support, including TLE4954CBE4XTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4954CBE4XTMA1 requirements.
6.How does Aetrix verify that TLE4954CBE4XTMA1 is sourced from the original manufacturer or authorized distributors?
All TLE4954CBE4XTMA1 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 TLE4954CBE4XTMA1 meets industry standards.
7.What is the process for return or replacement of TLE4954CBE4XTMA1?
All TLE4954CBE4XTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4954CBE4XTMA1, 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 TLE4954CBE4XTMA1 part is unused and in its original packaging.
Return procedure for TLE4954CBE4XTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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