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Infineon Technologies TLE4972AE35D5XUMA1
- Part No.:
- TLE4972AE35D5XUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Current Sensors
- Package:
- 16-TSSOP (0.154", 3.90mm Width)
- Datasheet:
-
TLE4972AE35D5XUMA1.pdf
- Description:
- SENSOR CUR HALL 2000A 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,845
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Product details
Overview
TLE4972AE35D5XUMA1 from Infineon is a high-precision, coreless, monolithic Hall-effect current sensor for automotive applications, delivering ±31 mT full-scale magnetic field sensing, 62 mV/mT sensitivity, ASIL B functional safety compliance per ISO 26262, and dual fast OCD outputs with 0.7 µs response time. It supports semi-differential analog output mode with VDD/2 quiescent voltage and operates from 3.1–3.5 V supply across –40 °C to +125 °C ambient.
For engineers reviewing the TLE4972AE35D5XUMA1 datasheet, TLE4972AE35D5XUMA1 pinout, TLE4972AE35D5XUMA1 application, or TLE4972AE35D5XUMA1 equivalent, key selection criteria include differential stray-field immunity, in-situ calibration capability, EEPROM-configurable OCD thresholds (BTHR1.2 = 1.39×FS, BTHR2.4 = 0.82×FS), and PG-TDSO-16 package integration for high-voltage powertrain monitoring.
Technical Context
The TLE4972AE35D5XUMA1 implements a differential lateral Hall probe pair measuring magnetic flux from external current-carrying conductors, eliminating saturation and hysteresis inherent in cored sensors. Its digitally assisted analog architecture integrates on-chip temperature and stress compensation via EEPROM-trimmed coefficients, enabling <±0.5% sensitivity error over lifetime and temperature.
Two independent open-drain OCD pins (OCD1, OCD2) provide hardware-level over-current detection with user-programmable symmetric thresholds and zero deglitch filtering in standard configuration. The analog output supports three modes-semi-differential (default), fully-differential, and single-ended-with ratiometricity configurable via EEPROM for system-level accuracy optimization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Full Scale Range | ±31 mT - enables measurement of up to 2,000 A in properly designed busbar layouts |
| Sensitivity | 62 mV/mT ±19.35 mT FS - delivers linear analog output with minimal gain drift over temperature |
| OCD Response Time | Typ. 0.7 µs - allows real-time protection of IGBTs/MOSFETs in traction inverters and OBCs |
| Supply Voltage | 3.1 V to 3.5 V - compatible with automotive 3.3 V domains; UVLO thresholds at 2.93 V (rising) and 2.5 V (falling) |
| Operating Temperature | –40 °C to +125 °C ambient - qualified for under-hood and powertrain locations |
| Functional Safety | ASIL B per ISO 26262 - includes internal self-diagnostics and fault reporting via analog output behavior |
| Output Mode | Semi-differential default - VREF outputs internal reference (VDD/2), AOUT provides single-ended signal referenced to it |
Pinout & Package
Package: PG-TDSO-16 (Thermally enhanced Dual Small Outline, 16-pin, exposed thermal pad). Lead frame must be connected to GND at one RSVD pin only to prevent ground loops; remaining RSVD pins left open. NC pins are not bonded.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 14 | RSVD | Shorted to lead frame; exactly one must connect to GND for thermal and EMI performance |
| 2 | OCD2 | Open-drain over-current detection output 2; active-low, threshold = 0.82 × FS |
| 3 | OCD1 | Open-drain over-current detection output 1; active-low, threshold = 1.39 × FS |
| 4 | AOUT | Analog output signal; semi-differential mode: VOQ = VDD/2, sensitivity = 62 mV/mT |
| 5 | VREF | Reference voltage output (not input) in semi-differential mode; nominally VDD/2 |
| 6 | GND | Power and signal ground reference; connects to exposed thermal pad |
| 7 | VDD | 3.1–3.5 V supply input; powers internal bias, Hall elements, and signal chain |
| 9–13, 15–16 | NC | No internal connection; must remain unconnected on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Differential Hall sensing | Rejects >95% of uniform external magnetic stray fields - critical for EV motor control near inverters |
| In-situ calibration support | Enables system-level offset and gain trimming post-assembly without test fixtures |
| EEPROM-configurable thresholds | OCD1/OCD2 thresholds and deglitch filters programmable in-system via OCD2 pin (20.5–20.7 V programming voltage) |
| Coreless architecture | Eliminates saturation, hysteresis, and temperature-dependent permeability errors of ferrite-cored sensors |
| ASIL B safety mechanisms | Includes continuous diagnostics of Hall bias, amplifier health, and supply monitoring - no external watchdog required |
Applications
| Automotive Traction Inverter | On-Board Charger (OBC) |
|---|---|
Use Scenario: Real-time phase current measurement in 400 V/800 V SiC inverter stacks for torque control and field-oriented control (FOC). IC Role / Device Role / Timing Role: Coreless current sensor providing isolated, low-latency analog feedback to MCU ADC with <1 µs total propagation delay. Use Value: Enables precise current limiting at 0.7 µs OCD response, preventing IGBT shoot-through during transient faults. | Use Scenario: Bidirectional AC/DC and DC/DC current monitoring in multi-kW bidirectional OBCs with dual active bridge topology. IC Role / Device Role / Timing Role: High-linearity analog current interface with semi-differential output referenced to stable VDD/2, minimizing common-mode noise coupling. Use Value: Delivers ±0.5% full-scale accuracy over lifetime - reduces need for recalibration during vehicle service life. |
| Battery Main Switch Monitoring | Electronic Power Steering (EPS) |
Use Scenario: High-side current sensing for 12 V/48 V battery disconnect units protecting against short-circuit and thermal runaway. IC Role / Device Role / Timing Role: Dual OCD outputs independently configured for fast pre-charge supervision (OCD2) and main fault cutoff (OCD1). Use Value: Configurable 1.39×FS and 0.82×FS thresholds allow staged protection - avoids nuisance tripping during inrush. | Use Scenario: Motor phase current sensing in compact EPS modules where space and magnetic immunity constrain sensor placement. IC Role / Device Role / Timing Role: Miniature coreless sensor mounted directly on busbar with minimal insertion resistance (<0.1 mΩ). Use Value: Differential stray-field rejection allows operation within 5 mm of EPS motor windings without shielding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision automotive current sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ACS730KLATR-30AB | Integrated conductor; fixed 30 A range; no EEPROM configuration; lower bandwidth (120 kHz vs. >250 kHz) | Limited to ≤30 A; no dual OCD; unsuitable for >100 A traction or OBC use cases | Select only for cost-sensitive 12 V auxiliary loads where full-scale flexibility and ASIL B are not required |
| TMCS1100A1 | Single OCD output; no in-situ calibration; ±1% initial accuracy vs. ±0.5% after calibration; non-automotive grade | Not AEC-Q100 qualified; lacks diagnostic coverage for ASIL B systems | Acceptable for industrial SMPS or lab equipment; reject for any automotive safety-critical path |
Compared with ACS730KLATR-30AB and TMCS1100A1, the TLE4972AE35D5XUMA1 uniquely combines ASIL B certification, dual configurable OCDs, EEPROM-based system calibration, and ±31 mT scalability - making it the only option qualified for high-current, safety-critical automotive powertrain monitoring.
Availability
TLE4972AE35D5XUMA1 is available at Aetrix Electronics and suitable for automotive traction inverters, on-board chargers, and battery main switch monitoring requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for TLE4972AE35D5XUMA1 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 security solutions, with global R&D and manufacturing infrastructure.
The TLE4972 product line targets high-reliability current sensing in ASIL B–compliant automotive power systems, emphasizing coreless precision, magnetic immunity, and integrated functional safety diagnostics.
FAQ
What is the recommended PCB layout for optimal magnetic immunity?
Place the TLE4972AE35D5XUMA1 centered over a straight, low-inductance current rail with symmetric copper pour on both sides. Route VDD and GND with minimum loop area; connect the exposed thermal pad directly to a solid GND plane. Avoid routing noisy signals or switching nodes within 10 mm of the sensor die location.
Can the OCD thresholds be adjusted dynamically during operation?
No - OCD thresholds are set once during programming via the OCD2 pin using 20.5–20.7 V pulses and stored in EEPROM. They remain static during normal operation. Dynamic adjustment requires reprogramming, which halts normal sensing and is intended for factory or service calibration only.
Does the TLE4972AE35D5XUMA1 require an external reference voltage?
No - in its default semi-differential mode, the device generates its own internal reference (VDD/2) output on the VREF pin. External reference is only needed in single-ended mode, and even then, VREF can be programmed to 1.5 V or 1.8 V via EEPROM instead of relying on an external source.
How is in-situ calibration performed in the target system?
In-situ calibration uses the analog output's known zero-current voltage (VOQ) and full-scale deviation to compute real-time offset and gain correction coefficients. The host MCU applies these to raw ADC readings. Calibration data is stored in system memory-not the sensor's EEPROM-and leverages the device's guaranteed linearity and low drift to achieve <±0.2% system-level accuracy.
TLE4972AE35D5XUMA1 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:
- AC/DC
- Sensor Type:
- Hall Effect, Differential
- Current - Sensing:
- 2000A
- Number of Channels:
- 1
- Output:
- Ratiometric, Voltage
- Sensitivity:
- 38.75mV/mT
- Frequency:
- DC ~ 210kHz
- Linearity:
- -
- Accuracy:
- ±2%
- Voltage - Supply:
- 3.1V ~ 3.5V
- Response Time:
- 700ns
- Current - Supply (Max):
- 25mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Polarization:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
TLE4972AE35D5XUMA1 FAQ
1.How can I place an order for TLE4972AE35D5XUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4972AE35D5XUMA1 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 TLE4972AE35D5XUMA1 reliable?
The price and inventory of TLE4972AE35D5XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4972AE35D5XUMA1 is usually 5 days.
3.What payment methods are accepted for TLE4972AE35D5XUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4972AE35D5XUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4972AE35D5XUMA1?
TLE4972AE35D5XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4972AE35D5XUMA1 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 TLE4972AE35D5XUMA1?
For technical support, including TLE4972AE35D5XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4972AE35D5XUMA1 requirements.
6.How does Aetrix verify that TLE4972AE35D5XUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE4972AE35D5XUMA1 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 TLE4972AE35D5XUMA1 meets industry standards.
7.What is the process for return or replacement of TLE4972AE35D5XUMA1?
All TLE4972AE35D5XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4972AE35D5XUMA1, 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 TLE4972AE35D5XUMA1 part is unused and in its original packaging.
Return procedure for TLE4972AE35D5XUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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