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Infineon Technologies TLE4998P8DXUMA1
- Part No.:
- TLE4998P8DXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Switches (Solid State)
- Package:
- -
- Datasheet:
-
TLE4998P8DXUMA1.pdf
- Description:
- MAG SWITCH SPEED SENSOR 8TDSO
- Quantity:
- Payment:
- Shipping:
Inventory:4,242
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Product details
Overview
TLE4998P8DXUMA1 from Infineon Technologies is a programmable dual-die linear Hall sensor IC with two independent PWM-output channels, 12-bit resolution, ±50/±100/±200 mT magnetic range selection, and digital temperature/stress compensation - deployed in automotive pedal position, throttle position, and steering torque sensing systems.
For engineers reviewing the TLE4998P8DXUMA1 datasheet, TLE4998P8DXUMA1 pinout, TLE4998P8DXUMA1 application, or TLE4998P8DXUMA1 equivalent, key selection criteria include PWM open-drain interface compatibility, EEPROM-programmable gain/offset/bandwidth, dual-sensor synchronization capability, and AEC-Q100 Grade 1 qualification for safety-critical automotive use.
Technical Context
The TLE4998P8DXUMA1 integrates two physically separate Hall sensor dies in a single PG-TDSO-8 package, each with its own 20-bit DSP core, 12-bit ADC, and dedicated EEPROM for independent calibration. It uses chopped Hall technology and continuous-time A/D conversion to achieve stable magnetic offset below ±0.5 mT over temperature.
Its PWM output operates at user-selectable frequencies from 122 Hz to 1953 Hz, with duty cycle linearly proportional to the 12-bit magnetic field value. Digital second-order temperature compensation and programmable clamping ensure <±0.5% full-scale error across –40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5–5.5 V nominal (4.1–16 V extended); supports direct connection to automotive battery with reverse-polarity protection. |
| Magnetic Range | Selectable ±50 mT / ±100 mT / ±200 mT; enables optimization for high-precision low-field or robust wide-range sensing. |
| Output Interface | PWM open-drain (dual-channel); requires external pull-up; compatible with 3.3 V or 5 V microcontroller capture units. |
| Resolution | 12-bit effective (4096 steps); maps linearly to duty cycle; provides sub-0.025% FS resolution in ±50 mT mode. |
| Operating Temp. | –40°C to +125°C; qualified per AEC-Q100 Rev. G Grade 1; validated for under-hood automotive environments. |
| EEPROM Features | Single-bit error correction; reprogrammable until lock; stores gain, offset, polarity, bandwidth, and magnet-specific coefficients. |
| Protection | Reverse-polarity, overvoltage (up to 18.35 V), output short-circuit, and on-board diagnostics for EEPROM/VDD faults. |
Pinout & Package
Package: PG-TDSO-8 (plastic thin small outline, 8-pin, exposed thermal pad). Pin pitch: 0.65 mm. Moisture sensitivity level: MSL 3 (per J-STD-020).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (TST) | Test pin (top die) | Must be connected to GND for normal operation; used during factory programming and calibration. |
| 2 (VDD) | Supply voltage input (top die) | Primary power rail for top sensor die; accepts 4.5–5.5 V; reverse-polarity protected. |
| 3 (GND) | Ground reference (top die) | Common return path for top die; must be low-impedance; shared with bottom die via internal bond wire. |
| 4 (OUT) | PWM output (top die) | Open-drain output; drives external pull-up; duty cycle encodes magnetic field value (0–100%). |
| 5 (OUT) | PWM output (bottom die) | Independent open-drain output for second sensor die; enables synchronized dual-axis or redundancy sensing. |
| 6 (GND) | Ground reference (bottom die) | Dedicated ground terminal for bottom die; improves noise immunity in dual-sensor configurations. |
| 7 (VDD) | Supply voltage input (bottom die) | Power rail for bottom sensor die; electrically isolated from top VDD for fault containment. |
| 8 (TST) | Test pin (bottom die) | Ground-referenced test node for bottom die; enables independent calibration and diagnostics. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent Hall dies | Two fully programmable sensors in one PG-TDSO-8 package; supports redundant or orthogonal axis sensing without board-level duplication. |
| 20-bit DSP with digital compensation | Real-time temperature and mechanical stress compensation eliminates need for external calibration hardware or firmware lookup tables. |
| Programmable PWM frequency | 122–1953 Hz range allows trade-off between update rate (e.g., 1953 Hz for fast pedal response) and EMI filtering (e.g., 122 Hz for low-noise torque sensing). |
| Two-point magnetic calibration | Eliminates iterative calibration loops; enables production-line setup using only zero-field and full-scale field points. |
| On-board diagnostics | Detects EEPROM corruption, supply overvoltage, and output shorts - outputs diagnostic flag via PWM pulse pattern or dedicated status bit. |
Applications
| Pedal Position Sensing | Throttle Valve Position |
|---|---|
|
Use Scenario: Non-contact detection of accelerator/brake pedal angular displacement in ICE and hybrid powertrains. IC Role / Device Role / Timing Role: Dual-die configuration enables primary/backup channel architecture with cross-checking logic for ASIL-B compliance. Use Value: Eliminates potentiometer wear-out; maintains ±0.3° accuracy over 10M cycles and –40°C to +125°C ambient. |
Use Scenario: Closed-loop feedback of throttle blade angle in electronic throttle control (ETC) modules. IC Role / Device Role / Timing Role: High-bandwidth PWM output (≥1 kHz) synchronizes with engine control unit (ECU) timer capture units for sub-millisecond latency. Use Value: Enables real-time torque-based air-fuel ratio adjustment with <10 µs timing jitter and <0.1% linearity error. |
| Steering Torque Sensing | Electric Power Steering (EPS) Assist |
|
Use Scenario: Measuring torsion bar twist angle in column-assist EPS systems to infer driver-applied torque. IC Role / Device Role / Timing Role: Dual-sensor differential measurement cancels common-mode temperature drift and mechanical stress effects. Use Value: Achieves ±0.05 N·m torque resolution and <±0.2% FS total error over lifetime, meeting ISO 26262 ASIL-C requirements. |
Use Scenario: Providing real-time assist-torque feedback to EPS motor controller during lane-keeping and automated steering maneuvers. IC Role / Device Role / Timing Role: Synchronized dual PWM outputs feed separate MCU capture channels for fault-tolerant torque estimation. Use Value: Enables fail-operational behavior: if one die fails, system degrades gracefully to single-channel mode with diagnostic alert. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable linear Hall sensor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Melexis MLX90393 | Tri-axis I²C-output Hall sensor; 18-bit resolution; no integrated EEPROM; requires external MCU for calibration storage. | Best suited for space-constrained PCBs needing 3D field vector output; lacks dual-die redundancy and automotive-grade diagnostics. | Select when tri-axis data and I²C integration outweigh need for self-contained PWM output and ASIL-ready diagnostics. |
| Allegro A1324 | Analog ratiometric output (0.5–4.5 V); fixed ±100 mT range; no programmability; no EEPROM; no dual-die architecture. | Used in cost-sensitive non-safety applications like HVAC damper position; lacks AEC-Q100 qualification and digital compensation. | Select only for legacy analog signal chains where PWM interface and functional safety are not required. |
Compared with MLX90393 and A1324, the TLE4998P8DXUMA1 uniquely delivers dual-channel redundancy, EEPROM-based field-specific calibration, and ASIL-compliant diagnostics in a single automotive-qualified package - making it the only choice for pedal/throttle/torque sensing where functional safety and long-term stability are mandatory.
Availability
TLE4998P8DXUMA1 is available at Aetrix Electronics and suitable for automotive pedal position systems, throttle control modules, and electric power steering assemblies requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for TLE4998P8DXUMA1 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 R&D and manufacturing infrastructure.
The TLE4998P8DXUMA1 belongs to Infineon's TLE499x programmable Hall sensor product line, designed specifically for high-accuracy, safety-critical position and torque sensing in automotive powertrain and chassis systems.
FAQ
What is the difference between TLE4998P8DXUMA1 and TLE4998P8D?
TLE4998P8DXUMA1 is the exact ordering code for the dual-sensor variant (TLE4998P8D) in PG-TDSO-8-2 package, supplied in tape-and-reel format by Infineon. The "XUMA1" suffix denotes the standard industrial packaging option; electrically and functionally identical to TLE4998P8D marked on the device body.
Can both PWM outputs operate simultaneously with different magnetic ranges?
Yes - each die is independently programmable via dedicated EEPROM registers. One die can be configured for ±50 mT (high-resolution pedal sensing), while the other uses ±200 mT (robust torque sensing), with separate gain, offset, and bandwidth settings stored per channel.
Does the TLE4998P8DXUMA1 require an external microcontroller to function?
No - it operates autonomously once programmed. The PWM output is self-timed and directly decodable by any MCU timer/capture peripheral. An MCU is only needed for initial EEPROM programming or optional calibration readback via the TEST pin interface.
How is reverse-polarity protection implemented on VDD and OUT pins?
Internal integrated protection diodes clamp reverse voltage on VDD to –0.3 V and limit reverse current to <1 mA. On OUT pins, the open-drain structure combined with substrate isolation prevents latch-up during –14 V transients, validated per ISO 7637-2 Pulse 1/2a/3a tests.
TLE4998P8DXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- -
- Technology:
- -
- Polarization:
- -
- Sensing Range:
- -
- Test Condition:
- -
- Voltage - Supply:
- -
- Current - Supply (Max):
- -
- Current - Output (Max):
- -
- Output Type:
- -
- Features:
- -
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- -
- Supplier Device Package:
- -
TLE4998P8DXUMA1 FAQ
1.How can I place an order for TLE4998P8DXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4998P8DXUMA1 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 TLE4998P8DXUMA1 reliable?
The price and inventory of TLE4998P8DXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4998P8DXUMA1 is usually 5 days.
3.What payment methods are accepted for TLE4998P8DXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4998P8DXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4998P8DXUMA1?
TLE4998P8DXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4998P8DXUMA1 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 TLE4998P8DXUMA1?
For technical support, including TLE4998P8DXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4998P8DXUMA1 requirements.
6.How does Aetrix verify that TLE4998P8DXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE4998P8DXUMA1 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 TLE4998P8DXUMA1 meets industry standards.
7.What is the process for return or replacement of TLE4998P8DXUMA1?
All TLE4998P8DXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4998P8DXUMA1, 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 TLE4998P8DXUMA1 part is unused and in its original packaging.
Return procedure for TLE4998P8DXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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