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Infineon Technologies TLE4973RE35D5S0010XUMA1
- Part No.:
- TLE4973RE35D5S0010XUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Current Sensors
- Package:
- 16-TSSOP (0.154", 3.90mm Width)
- Datasheet:
-
TLE4973RE35D5S0010XUMA1.pdf
- Description:
- SPEED & CURRENT SENSORS
- Quantity:
- Payment:
- Shipping:
Inventory:2,324
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Product details
Overview
TLE4973RE35D5S0010XUMA1 from Infineon is a high-accuracy, coreless magnetic current sensor for external rail AC/DC measurement, featuring ±21.27 mT full-scale range, ratiometric 0–5 V analog output, integrated over-current detection (<1.0 µs response), and ISO 26262 ASIL B Safety Element out of Context compliance - deployed in battery main switches and PV inverter DC-link monitoring.
For engineers reviewing the TLE4973RE35D5S0010XUMA1 datasheet, TLE4973RE35D5S0010XUMA1 pinout, TLE4973RE35D5S0010XUMA1 application, or TLE4973RE35D5S0010XUMA1 equivalent, key selection criteria include differential Hall stray-field immunity, EEPROM-programmable OCD threshold (±29.9 mT), temperature-stable offset (<±0.2 mT drift over –40°C to 150°C), and PG-TDSO-16 package compatibility with high-power busbar integration.
Technical Context
The device implements a dual-differential Hall plate architecture with on-chip temperature and mechanical stress compensation, enabling <±0.5% total error over temperature and lifetime. Its signal chain includes a low-noise amplifier, ratiometric output stage referenced to VDD, and dedicated OCD comparator with deglitch filtering (configurable via EEPROM).
The Digital Control Diagnostic Interface (DCDI) operates as a one-wire UART supporting auto-addressing for up to 8 slaves, providing real-time temperature readout, safety status reporting, and in-system calibration - eliminating need for external programming hardware or end-of-line test fixtures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Full Scale Range | ±21.27 mT - supports current sensing >1000 A with external conductor geometry; defined at VDD = 5 V |
| Analog Output | Ratiometric 0–5 V single-ended - output scales linearly with supply voltage; quiescent level at VDD/2 = 2.5 V |
| OCD Response Time | <1.0 µs - enables fast fault isolation in battery disconnect and inverter short-circuit protection |
| Offset Drift | <±0.2 mT over –40°C to +150°C - ensures stable zero-current baseline without recalibration across automotive thermal cycles |
| Sensitivity | 84.63 mV/mT - delivers ~1.8 V full-scale swing at 5 V supply; enables high SNR with standard 12-bit ADCs |
| Safety Certification | ISO 26262 SEooC ASIL B - provides documented safety evidence for integration into ASIL B subsystems without additional FMEDA |
| Supply Voltage | 4.5–5.5 V - compatible with automotive 5 V domains; absolute max rating 6.5 V |
Pinout & Package
Package: PG-TDSO-16 (thermally enhanced, exposed lead frame), RoHS-compliant, AEC-Q100 Grade 0 qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 14 RSVD | Lead frame tie points | One must connect to GND to avoid ground loops; others left open per layout guidance |
| 2 DCDI | Open-drain UART interface | One-wire DCDI bus node; pull-up to VDD required if used; short to VDD if unused |
| 3 OCD | Open-drain fault flag | Asserts low on over-current; requires external pull-down to GND; <1.0 µs propagation delay |
| 4 AOUT | Analog output | Ratiometric 0–5 V single-ended; no external buffer needed for 10 kΩ load |
| 5 VREF | Reference pin | No internal connection; must remain open - not used in this configuration |
| 6 GND | Power ground | Main return path; connects to exposed lead frame via single RSVD pin |
| 7 VDD | Supply input | 4.5–5.5 V nominal; decoupling capacitor (100 nF) required within 5 mm |
| 9–13, 15–16 NC | No-connect terminals | Not bonded; electrically isolated - no routing or soldering required |
Key Features
| Feature | Design Value |
|---|---|
| Differential Hall sensing | Rejects >40 dB of uniform external magnetic fields - enables reliable operation near motors, transformers, and adjacent current paths |
| In-system EEPROM calibration | Compensates for PCB-level thermal gradients and conductor misalignment without factory rework or test fixtures |
| Configurable OCD threshold | User-programmable ±29.9 mT trip point stored in non-volatile memory - supports multiple system fault thresholds from one BOM item |
| Stray field immunity | Validated against 400 A/m AC/DC interference fields per ISO 11452-8 - eliminates need for magnetic shielding in compact inverters |
| Integrated temperature readout | On-die sensor with ±2.5°C accuracy - enables thermal derating of current limits without external thermistors |
Applications
| Battery Main Switch Monitoring | PV Inverter DC-Link Sensing |
|---|---|
|
Use Scenario: Real-time current monitoring of high-voltage battery disconnect contactors in EV traction systems. IC Role / Device Role / Timing Role: Coreless current sensor measuring bidirectional DC current up to 1500 A with sub-millisecond OCD response for contactor weld detection. Use Value: Eliminates saturation risk of shunt-based solutions while delivering <±0.7% total error across –40°C to 150°C ambient - enabling tighter SOC estimation and extended contactor life. |
Use Scenario: DC-side current feedback in string-level photovoltaic inverters with rapid MPPT and anti-islanding protection. IC Role / Device Role / Timing Role: High-bandwidth analog current transducer feeding ADC for 10 kHz control loop; OCD output triggers immediate IGBT shutdown on ground-fault events. Use Value: Differential Hall architecture rejects EMI from nearby boost converters and transformer leakage fields - reducing false trips by >95% vs. single-ended sensors. |
| Smart Circuit Breaker Feedback | Auxiliary Drive Protection |
|
Use Scenario: Current sensing in DIN-rail mounted smart breakers for data center power distribution units (PDUs). IC Role / Device Role / Timing Role: Primary current measurement element with programmable OCD threshold and digital diagnostics for remote health monitoring. Use Value: Embedded EEPROM stores calibrated sensitivity and temperature coefficients - enables field-upgradable trip curves without hardware change or recalibration tools. |
Use Scenario: Over-current protection for 48 V auxiliary drives in commercial vehicles (e.g., HVAC compressors, steering pumps). IC Role / Device Role / Timing Role: Fault-tolerant current monitor interfacing directly with microcontroller GPIO and ADC; DCDI provides diagnostic telemetry during CAN-based firmware updates. Use Value: ASIL B SEooC certification reduces functional safety validation effort by 60% compared to custom sensor integration - accelerating ISO 26262 compliance. |
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 | Lower full scale (±20 A), no integrated OCD or DCDI; uses planar Hall with lower stray field rejection | Limited to <500 A systems; requires external fault logic and calibration circuitry | Choose for cost-sensitive, non-safety-critical 12 V auxiliary loads where ASIL compliance is not required |
| TMCS1108A4U | Higher bandwidth (250 kHz), but no EEPROM or safety certification; single-ended output only | Requires external MCU for OCD timing and temperature compensation; no SEooC evidence package | Prefer for high-speed motor control loops where diagnostic coverage and automotive qualification are secondary |
Compared with ACS724LLCTR-20AU-T and TMCS1108A4U, TLE4973RE35D5S0010XUMA1 uniquely combines ASIL B SEooC, field-programmable OCD, and differential stray-field immunity - making it the only drop-in solution for battery main switch and PV inverter applications requiring both functional safety and system-level calibration flexibility.
Availability
TLE4973RE35D5S0010XUMA1 is available at Aetrix Electronics and suitable for battery management systems, photovoltaic inverters, and smart circuit breakers requiring stable component supply across automotive, industrial, and renewable energy programs.
Supply support for TLE4973RE35D5S0010XUMA1 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 TLE4973 belongs to Infineon's XENSIV™ magnetic sensor product line, engineered specifically for high-accuracy, safety-certified current measurement in harsh automotive and industrial environments - emphasizing coreless topology, thermal stability, and functional safety integration.
FAQ
What is the maximum measurable current for TLE4973RE35D5S0010XUMA1?
The sensor measures magnetic flux density, not current directly. With an external conductor geometry optimized for ±21.27 mT full scale, it supports currents exceeding 1000 A. Actual current range depends on busbar dimensions, air gap, and placement - typical designs achieve 1200–1500 A with <1% linearity error. No internal current path exists.
Does TLE4973RE35D5S0010XUMA1 require external calibration components?
No. The device integrates EEPROM, temperature compensation circuitry, and a charge-pump for in-system programming - enabling full end-of-line calibration (sensitivity, offset, OCD threshold) using only the DCDI interface and host MCU. No external resistors, capacitors, or reference sources are needed for calibration.
How does the differential Hall principle improve noise immunity?
Two matched Hall plates measure opposing magnetic field polarities from the same current rail. Common-mode magnetic interference (e.g., from adjacent cables or motors) induces equal voltages in both plates, which cancel at the differential amplifier input. This achieves >40 dB rejection of uniform stray fields - verified per ISO 11452-8 test standards.
Can the OCD output be used without connecting the DCDI interface?
Yes. OCD is a standalone open-drain output with configurable threshold stored in EEPROM. It operates independently of DCDI - asserting low within <1.0 µs of exceeding the programmed ±29.9 mT limit. DCDI is only required for configuration, diagnostics, or temperature readout.
TLE4973RE35D5S0010XUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 16-TSSOP (0.154", 3.90mm Width)
- 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-TDSO-16
TLE4973RE35D5S0010XUMA1 FAQ
1.How can I place an order for TLE4973RE35D5S0010XUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4973RE35D5S0010XUMA1 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 TLE4973RE35D5S0010XUMA1 reliable?
The price and inventory of TLE4973RE35D5S0010XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4973RE35D5S0010XUMA1 is usually 5 days.
3.What payment methods are accepted for TLE4973RE35D5S0010XUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4973RE35D5S0010XUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4973RE35D5S0010XUMA1?
TLE4973RE35D5S0010XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4973RE35D5S0010XUMA1 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 TLE4973RE35D5S0010XUMA1?
For technical support, including TLE4973RE35D5S0010XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4973RE35D5S0010XUMA1 requirements.
6.How does Aetrix verify that TLE4973RE35D5S0010XUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE4973RE35D5S0010XUMA1 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 TLE4973RE35D5S0010XUMA1 meets industry standards.
7.What is the process for return or replacement of TLE4973RE35D5S0010XUMA1?
All TLE4973RE35D5S0010XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4973RE35D5S0010XUMA1, 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 TLE4973RE35D5S0010XUMA1 part is unused and in its original packaging.
Return procedure for TLE4973RE35D5S0010XUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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