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Infineon Technologies TLE4973RE35S5S0010XUMA1
- Part No.:
- TLE4973RE35S5S0010XUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Current Sensors
- Package:
- 6-PowerVDFN
- Datasheet:
-
TLE4973RE35S5S0010XUMA1.pdf
- Description:
- SPEED & CURRENT SENSORS
- Quantity:
- Payment:
- Shipping:
Inventory:4,486
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Product details
Overview
TLE4973RE35S5S0010XUMA1 from Infineon is a high-accuracy, coreless magnetic current sensor for external rail AC/DC measurement, featuring ±21.27 mT full-scale range, 5 V supply, ratiometric single-ended analog output (VOQ = VDD/2), ISO 26262 ASIL B Safety Element out of Context, and <1.0 µs over-current detection response. It enables precise current monitoring in high-power automotive inverters and battery main switches.
For engineers reviewing the TLE4973RE35S5S0010XUMA1 datasheet, TLE4973RE35S5S0010XUMA1 pinout, TLE4973RE35S5S0010XUMA1 application, or TLE4973RE35S5S0010XUMA1 equivalent, key selection criteria include differential Hall stray-field immunity, in-system EEPROM calibration via DCDI interface, OCD threshold configurability, and PG-VSON-6 thermal performance in high-density power modules.
Technical Context
The TLE4973RE35S5S0010XUMA1 implements a differential Hall plate architecture with integrated temperature and stress compensation, delivering stable offset and sensitivity across -40°C to 150°C. Its functional block includes a high-performance signal conditioning path feeding a single-ended AOUT amplifier, with dedicated OCD comparator and DCDI UART-based diagnostic interface.
It operates in fixed single-ended AOUT-only mode with quiescent output at VDD/2, supports open-drain OCD and DCDI pins with internal pull-up compatibility, and stores user-configurable parameters-including OCD threshold (±29.9 mT), sensitivity (84.63 mV/mT), and deglitch filter setting-in embedded EEPROM accessible via one-wire DCDI bus supporting up to 8 slaves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Full Scale Range | ±21.27 mT at standard configuration - defines maximum measurable magnetic field for 1000+ A current sensing with linear response |
| Sensitivity | 84.63 mV/mT - determines analog output voltage swing per unit magnetic flux density, enabling precise low-noise current resolution |
| OCD Threshold | ±29.9 mT - programmable over-current detection level with <1.0 µs max response time for fast fault isolation in power stages |
| Supply Voltage | 5 V nominal - powers internal analog and digital blocks; output is ratiometric to VDD, ensuring stability against supply variation |
| Quiescent Output | VDD / 2 - centered analog output voltage simplifies ADC interfacing and improves dynamic range utilization |
| Operating Temp | -40°C to +150°C - qualified per AEC-Q100 Grade 0, supporting under-hood and inverter module deployment |
| Safety Certification | ISO 26262 SEooC ASIL B - provides safety evidence package for integration into ASIL B automotive systems without additional hardware redundancy |
Pinout & Package
Package: PG-VSON-6 (exposed pad), surface-mount, thermally enhanced for high-power density applications. Exposed pad (Pin 7) must be connected to GND for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VDD | Power supply input | 5 V nominal supply; powers all internal analog/digital circuitry and sets ratiometric reference for AOUT |
| 2 GND | Ground reference | Primary return path; must be low-impedance connection to system ground plane and tied to exposed pad |
| 3 VREF | Reference voltage input | No-connect pin; internally unused and must remain open per datasheet to avoid interference |
| 4 AOUT | Analog output | Single-ended ratiometric voltage output (0.5×VDD ± sensitivity × B-field); directly interfaces to 12–16-bit SAR ADCs |
| 5 OCD | Over-current detection output | Open-drain active-low flag; requires external pull-up to VDD; asserts within <1.0 µs on magnetic field exceedance |
| 6 DCDI | Digital control/diagnostic interface | One-wire UART interface for EEPROM read/write, temperature readout, safety status, and OCD threshold reconfiguration |
| 7 EP | Exposed thermal pad | Must be soldered to GND plane for thermal dissipation and EMI suppression; not electrically isolated |
Key Features
| Feature | Design Value |
|---|---|
| Differential Hall sensing | Rejects >95% of uniform external stray fields-enables reliable operation near high-current busbars or adjacent phases |
| In-system EEPROM calibration | Eliminates need for external calibration circuitry; allows end-of-line compensation of PCB layout-induced errors and thermal drift |
| DCDI one-wire interface | Auto-addressing support for up to 8 sensors on shared bus; reduces wiring count and enables centralized diagnostics in multi-phase systems |
| ASIL B SEooC certification | Provides pre-validated safety evidence for integration into automotive safety mechanisms without requiring redundant sensors or voting logic |
| Fast OCD response | <1.0 µs detection latency enables protection of SiC/GaN power stages before destructive energy accumulation occurs |
Applications
| EV Traction Inverter Phase Leg | Battery Main Contact Monitoring |
|---|---|
|
Use Scenario: Real-time phase current measurement in 800 V SiC inverter with space-constrained gate driver board layout. IC Role / Device Role / Timing Role: Coreless current sensor mounted adjacent to copper busbar; provides isolated, high-bandwidth analog feedback for FOC control loop. Use Value: Differential Hall topology rejects stray fields from adjacent phases; 150°C rating supports direct placement near heatsink; OCD output triggers immediate PWM shutdown. |
Use Scenario: Continuous monitoring of high-side battery disconnect switch in 400 V BEV pack during charge/discharge cycles. IC Role / Device Role / Timing Role: External-rail current monitor detecting weld failure, contact degradation, or short-circuit faults upstream of fuse. Use Value: ±21.27 mT FS enables sub-1% error at 1200 A; EEPROM-stored calibration compensates for mechanical tolerances in busbar mounting; ASIL B compliance satisfies ISO 26262 requirements. |
| PV String Combiner Box Protection | Industrial Smart Circuit Breaker |
|
Use Scenario: DC current monitoring in multi-string solar combiner box with shared heat sink and dense conductor routing. IC Role / Device Role / Timing Role: Coreless sensor placed on external PV string busbar; delivers analog output to microcontroller ADC and fast OCD signal to solid-state relay driver. Use Value: Stray-field immunity prevents false trips from adjacent strings; 5 V supply matches common MCU IO rails; VSON-6 footprint minimizes PCB area in cost-sensitive industrial enclosure. |
Use Scenario: Retrofit current sensing in DIN-rail mounted smart breaker with integrated communication and trip logic. IC Role / Device Role / Timing Role: Primary current transducer feeding both real-time energy metering and instantaneous over-current tripping function. Use Value: Single-chip solution replaces shunt + op-amp + comparator; DCDI interface enables remote threshold adjustment and lifetime health reporting via Modbus RTU gateway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar coreless current sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ACS724LLCTR-20AU-T | 20 A integrated Hall IC with fixed 100 mV/A sensitivity; no DCDI interface or EEPROM; ±1% total error band at 25°C only | Limited to lower-current (<20 A) applications; lacks ASIL B certification and in-system calibration capability | Select when cost-sensitive, low-current, non-safety-critical designs require minimal external components |
| TMCS1100A1 | Isolated Hall-effect sensor with 50 kHz bandwidth; 1% gain error; no OCD output or diagnostic interface; requires external reference | Designed for isolated voltage domain bridging; no built-in safety evidence or fast fault signaling | Prefer for galvanically isolated measurement where primary-secondary separation is mandatory and diagnostics are handled externally |
Compared with ACS724LLCTR-20AU-T and TMCS1100A1, the TLE4973RE35S5S0010XUMA1 uniquely combines ASIL B SEooC certification, <1 µs OCD response, and in-system EEPROM calibration-all in a thermally optimized VSON-6 package-making it the only choice for high-current, safety-critical automotive and industrial power modules requiring field-programmable accuracy.
Availability
TLE4973RE35S5S0010XUMA1 is available at Aetrix Electronics and suitable for EV traction inverters, battery management systems, and photovoltaic string monitoring requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 Grade 0 qualification.
Supply support for TLE4973RE35S5S0010XUMA1 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 TLE4973 belongs to Infineon's XENSIV™ magnetic sensor product line, engineered specifically for high-accuracy, coreless current measurement in harsh automotive and industrial environments where isolation, reliability, and functional safety are critical.
FAQ
What is the purpose of the VREF pin on the TLE4973RE35S5S0010XUMA1?
The VREF pin is not used internally and must be left unconnected (open) per the official datasheet. Connecting VREF to any voltage or ground may disrupt internal biasing and cause output instability or calibration errors. Its presence is reserved for future variants and has no functional role in this part number.
Can the OCD threshold be adjusted after soldering onto the PCB?
Yes-the OCD threshold is stored in embedded EEPROM and fully configurable in-system via the DCDI one-wire interface. Using standard UART commands, users can reprogram the threshold (e.g., from ±29.9 mT to other values within device limits) without removing the sensor or adding external components.
Does the TLE4973RE35S5S0010XUMA1 require external filtering on the AOUT pin?
No external RC filter is required for basic operation, as the analog output is internally bandwidth-limited to support noise-immune sampling. However, a 1 nF capacitor to GND near the AOUT pin is recommended for high-frequency EMI suppression in noisy inverter environments, per Infineon's layout guidelines.
How does the DCDI interface handle multiple TLE4973 devices on the same bus?
The DCDI interface uses auto-addressing: each device samples its OCD pin state at power-up to derive a unique 3-bit address. Up to eight sensors can share one DCDI bus without external address pins or jumpers, enabling daisy-chained diagnostics in multi-phase motor drives or modular power systems.
TLE4973RE35S5S0010XUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 6-PowerVDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- For Measuring:
- DC
- Sensor Type:
- Hall Effect
- Current - Sensing:
- -
- Number of Channels:
- 1
- Output:
- -
- Sensitivity:
- -
- Frequency:
- -
- Linearity:
- -
- Accuracy:
- -
- Voltage - Supply:
- 5V
- Response Time:
- -
- Current - Supply (Max):
- -
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Polarization:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-VSON-6-4
TLE4973RE35S5S0010XUMA1 FAQ
1.How can I place an order for TLE4973RE35S5S0010XUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4973RE35S5S0010XUMA1 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 TLE4973RE35S5S0010XUMA1 reliable?
The price and inventory of TLE4973RE35S5S0010XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4973RE35S5S0010XUMA1 is usually 5 days.
3.What payment methods are accepted for TLE4973RE35S5S0010XUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4973RE35S5S0010XUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4973RE35S5S0010XUMA1?
TLE4973RE35S5S0010XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4973RE35S5S0010XUMA1 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 TLE4973RE35S5S0010XUMA1?
For technical support, including TLE4973RE35S5S0010XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4973RE35S5S0010XUMA1 requirements.
6.How does Aetrix verify that TLE4973RE35S5S0010XUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE4973RE35S5S0010XUMA1 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 TLE4973RE35S5S0010XUMA1 meets industry standards.
7.What is the process for return or replacement of TLE4973RE35S5S0010XUMA1?
All TLE4973RE35S5S0010XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4973RE35S5S0010XUMA1, 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 TLE4973RE35S5S0010XUMA1 part is unused and in its original packaging.
Return procedure for TLE4973RE35S5S0010XUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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