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Infineon Technologies TLE4998C8XUMA1
- Part No.:
- TLE4998C8XUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Linear, Compass (ICs)
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE4998C8XUMA1.pdf
- Description:
- SENSOR HALL OPEN DRAIN/PWM TDSO8
- Quantity:
- Payment:
- Shipping:
Inventory:2,358
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Product details
Overview
TLE4998C8XUMA1 from Infineon is a programmable dual-channel linear Hall sensor IC with integrated 20-bit DSP, digital temperature/stress compensation, and SPC (Short PWM Code) output compliant with SAE J2716 SENT protocol. It delivers 16-bit resolution, ±50/±100/±200 mT configurable magnetic range, and operates from −40°C to +125°C for automotive pedal position and steering torque sensing.
For engineers reviewing the TLE4998C8XUMA1 datasheet, TLE4998C8XUMA1 pinout, TLE4998C8XUMA1 application, or TLE4998C8XUMA1 equivalent, key selection criteria include SPC protocol mode support (synchronous, range selection, ID selection), EEPROM-programmable gain/offset/polarity, open-drain output architecture, and AEC-Q100 qualification for safety-critical automotive systems.
Technical Context
The device integrates two independent Hall sensing channels in a single PG-TDSO-8 package, each with dedicated VDD, GND, OUT, and TST pins routed to separate dies. Its BiCMOS process enables reverse-polarity and overvoltage protection on all pins, while the chopped Hall element and continuous-time ADC ensure sub-mT magnetic offset stability over lifetime.
Digital signal processing applies second-order temperature compensation using customer-programmable coefficients, and supports two-point magnetic transfer function calibration without iterative loops. The SPC interface allows ECU-initiated transmissions, dynamic range switching, and multi-sensor bus operation (up to 4 ICs on one line) via ID selection mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit overall resolution with 20-bit internal DSP - ensures <0.0015% full-scale accuracy for high-fidelity position feedback. |
| Magnetic Range | Programmable ±50 mT / ±100 mT / ±200 mT - enables optimal SNR selection per mechanical stroke or magnet strength. |
| Operating Temp | −40°C to +125°C - qualified per AEC-Q100 Grade 0, supporting under-hood and transmission-mounted deployments. |
| Supply Voltage | 4.5–5.5 V nominal (4.1–16 V extended) - accommodates battery transients and brown-out conditions without reset. |
| Output Type | Open-drain SPC output - permits 3.3 V ECU interfacing via external pull-up, eliminating level-shifter components. |
| EEPROM Memory | Single-bit error-corrected storage - retains calibration, gain, offset, polarity, bandwidth, and clamping settings across power cycles. |
| Diagnostics | On-board overvoltage detection and EEPROM error reporting - provides fault status via SPC status nibbles for ASIL-B compliance. |
Pinout & Package
Package: PG-TDSO-8-1 (single-sensor variant), thermally enhanced exposed pad, RoHS-compliant, AEC-Q100 qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 TST | Test pin | Factory test access; recommended connection to GND during normal operation to suppress noise coupling. |
| 2 VDD | Supply voltage input | Primary power rail (4.5–5.5 V); also serves as programming interface line during configuration. |
| 3 GND | Ground reference | Analog/digital ground return path; must be low-impedance to minimize offset drift from ground bounce. |
| 4 OUT | SPC output driver | Open-drain output delivering SENT-compatible nibble sequences; requires external pull-up resistor. |
| 5–8 | Not connected (NC) | No internal connection; left unpopulated in C8 variant - distinct from dual-sensor C8D pinout. |
Key Features
| Feature | Design Value |
|---|---|
| Two-point magnetic calibration | Eliminates iterative adjustment: full transfer function defined by zero-field and end-point measurements only. |
| Dual-mode SPC protocol | Supports synchronous transmission plus dynamic range switching or ID-based multi-sensor addressing on shared bus. |
| Digital temperature compensation | Second-order polynomial correction using user-loaded coefficients - maintains <±0.5% FS error across −40°C to +125°C. |
| Reprogrammable EEPROM | Field-upgradable parameters (gain, offset, polarity, clamping) until memory lock - enables late-stage calibration and variant management. |
| Integrated diagnostics | Real-time monitoring of supply overvoltage and EEPROM integrity - status reported in every SPC frame for functional safety validation. |
Applications
| Pedal Position Sensing | Throttle Valve Position |
|---|---|
|
Use Scenario: Non-contact measurement of accelerator/brake pedal angular displacement in ICE and hybrid powertrains. IC Role / Device Role / Timing Role: Primary analog-to-digital magnetic field transducer delivering SENT-coded position data to ECU at 100 Hz update rate. Use Value: Replaces wear-prone potentiometers; achieves <±0.1° linearity error and survives >10M actuation cycles with no mechanical degradation. |
Use Scenario: Closed-loop control of throttle butterfly angle in gasoline direct injection engines. IC Role / Device Role / Timing Role: High-stability linear Hall sensor providing real-time angular feedback synchronized to engine timing events. Use Value: Enables precise air-fuel ratio control via 16-bit resolution and <±0.3% full-scale thermal drift over lifetime. |
| Steering Torque Sensing | Electric Power Steering (EPS) Assist |
|
Use Scenario: Detection of torsional deflection in steering column shaft for torque estimation in ADAS lane-keeping systems. IC Role / Device Role / Timing Role: Dual-channel differential Hall sensor measuring opposing magnetic fields to reject common-mode mechanical stress. Use Value: Delivers <±0.5 N·m torque accuracy with digital stress compensation - critical for ISO 26262 ASIL-C torque redundancy paths. |
Use Scenario: Real-time motor current and assist-torque coordination in column-assist EPS modules. IC Role / Device Role / Timing Role: Safety-relevant position feedback source feeding both primary control loop and independent monitor channel. Use Value: Supports dual-lockstep MCU architectures via deterministic SPC frame timing and built-in diagnostic flags. |
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/TWI output; 20-bit resolution; no SPC/Sent interface; SPI/I²C programmability only. | Requires host MCU with I²C master; lacks ECU-initiated transmission and multi-sensor bus capability. | Select when system uses I²C infrastructure and does not require SENT compliance or ID-selection bus topology. |
| Allegro A1345 | Single-channel, ratiometric analog output; 12-bit effective resolution; no EEPROM or digital compensation. | Needs external ADC and temperature compensation circuitry; unsuitable for ASIL-B/C safety goals. | Select for cost-sensitive non-safety applications where analog interface and lower resolution are acceptable. |
Compared with MLX90393 and A1345, TLE4998C8XUMA1 uniquely combines SENT protocol compliance, dual-channel integration, EEPROM-based field calibration, and AEC-Q100 Grade 0 qualification - making it the only option for production automotive systems requiring ECU-synchronized digital position feedback with functional safety traceability.
Availability
TLE4998C8XUMA1 is available at Aetrix Electronics and suitable for pedal position sensing, throttle valve control, steering torque measurement, and electric power steering assist requiring stable component supply across automotive Tier-1 production programs.
Supply support for TLE4998C8XUMA1 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 microcontrollers, and sensor solutions, with global R&D and manufacturing infrastructure.
TLE4998C8XUMA1 belongs to Infineon's PRO-SIL™ safety-certified Hall sensor product line, engineered specifically for ASIL-B/C automotive subsystems demanding high-accuracy, fail-operational magnetic position feedback.
FAQ
What is the difference between TLE4998C8XUMA1 and TLE4998C8D?
TLE4998C8XUMA1 is the single-sensor variant in PG-TDSO-8-1 package with pins 5–8 unconnected, whereas TLE4998C8D is the dual-sensor version in PG-TDSO-8-2 package with fully populated pins for independent top/bottom die operation. Both share identical electrical specs and programming interface but differ in physical pin mapping and magnetic channel count.
Does TLE4998C8XUMA1 support bidirectional magnetic field measurement?
Yes - it supports bipolar operation mode, enabling measurement of both north- and south-pole magnetic fields across its full programmable range (±50/±100/±200 mT). Polarity and gain are independently configurable per channel, allowing inverted or asymmetrical transfer functions per application need.
How is the SPC output synchronized with the ECU?
The ECU initiates communication by pulling the OUT line low for ≥10 µs (master pulse), triggering the sensor to transmit a fixed-length SPC frame containing magnetic field, temperature, and status nibbles. Frame timing is deterministic and jitter-free due to internal oscillator synchronization, meeting SENT timing tolerances per SAE J2716 Rev 2010.
Can TLE4998C8XUMA1 operate outside its nominal 4.5–5.5 V supply range?
Yes - it supports an extended supply range of 4.1–16 V, enabling robust operation during cold-crank (down to 4.1 V) and load-dump transients (up to 16 V for ≤1 hour). Internal protection circuitry prevents latch-up and damage, and functionality remains guaranteed within the extended range per datasheet Section 5.3.3.
TLE4998C8XUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Technology:
- Hall Effect
- Axis:
- Single
- Output Type:
- Open Drain, PWM
- Sensing Range:
- ±50mT ~ ±200mT
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Supply (Max):
- 8mA
- Current - Output (Max):
- 5mA
- Resolution:
- 16 b
- Bandwidth:
- 80Hz, 240Hz, 440Hz, 640Hz, 860Hz, 1.1kHz, 1.39kHz
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Features:
- Programmable
- Supplier Device Package:
- -
- Mounting Type:
- Surface Mount
TLE4998C8XUMA1 FAQ
1.How can I place an order for TLE4998C8XUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4998C8XUMA1 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 TLE4998C8XUMA1 reliable?
The price and inventory of TLE4998C8XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4998C8XUMA1 is usually 5 days.
3.What payment methods are accepted for TLE4998C8XUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4998C8XUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4998C8XUMA1?
TLE4998C8XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4998C8XUMA1 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 TLE4998C8XUMA1?
For technical support, including TLE4998C8XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4998C8XUMA1 requirements.
6.How does Aetrix verify that TLE4998C8XUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE4998C8XUMA1 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 TLE4998C8XUMA1 meets industry standards.
7.What is the process for return or replacement of TLE4998C8XUMA1?
All TLE4998C8XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4998C8XUMA1, 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 TLE4998C8XUMA1 part is unused and in its original packaging.
Return procedure for TLE4998C8XUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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