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Infineon Technologies TLI4970D050T4XUMA1
- Part No.:
- TLI4970D050T4XUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Current Sensors
- Package:
- 8-PowerTDFN
- Datasheet:
-
TLI4970D050T4XUMA1.pdf
- Description:
- SENSOR CURRENT HALL 50A 8TISON
- Quantity:
- Payment:
- Shipping:
Inventory:2,930
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Product details
Overview
TLI4970D050T4 from Infineon Technologies is a high-precision, coreless magnetic current sensor IC for bidirectional AC/DC current measurement up to ±50 A, featuring galvanic isolation (2.5 kV UL 1577), 16-bit SPI digital output (13-bit current data), and integrated fast overcurrent detection (OCD) with configurable threshold. It uses an on-chip primary conductor and differential sensing to eliminate hysteresis and suppress stray fields - deployed in motor phase-leg monitoring and DC-link current sensing in industrial inverters.
For engineers reviewing the TLI4970D050T4 datasheet, TLI4970D050T4 pinout, TLI4970D050T4 application, or TLI4970D050T4 equivalent, key selection criteria include ±50 A measurement range, 1.0 % initial accuracy (0 h), 2.5 kV isolation rating, OCD response time ≤ 2.5 µs, and PG-TISON-8-1 package compatibility with SMD reflow assembly.
Technical Context
The TLI4970D050T4 implements a Hall-based differential magnetic sensing architecture with integrated current-carrying primary conductor, enabling zero-calibration operation and immunity to external magnetic interference. Its signal chain includes analog front-end amplification, 13-bit SAR ADC, and digital SPI interface with status register reporting.
It supports two operating modes: standard readout (SPI) and fast OCD assertion (open-drain, <2.5 µs propagation delay). Isolation is achieved via reinforced dielectric barrier between primary conductor and secondary circuitry, certified per IEC 60747-5-2 and UL 1577.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Measurement Range | ±50 A DC/AC - supports full-scale bidirectional current sensing without external shunt or core saturation risk. |
| Initial Accuracy | ±1.0 % of reading (0 h, 25 °C) - enables high-fidelity closed-loop control in servo drives without system-level calibration. |
| Offset Error | Max. ±25 mA at 25 °C - ensures sub-amp resolution near zero-crossing for precision energy metering. |
| OCD Response Time | ≤2.5 µs - allows real-time protection of IGBTs/MOSFETs before destructive current rise in power converters. |
| Isolation Voltage | 2.5 kV RMS (UL 1577) - meets reinforced insulation requirements for 400 V AC mains-connected industrial equipment. |
| Digital Interface | 16-bit SPI (13-bit current + 3-bit status) - delivers deterministic timing and noise-immune communication vs. analog outputs. |
| Bandwidth | 200 kHz (–3 dB) - captures fast transients in PWM-driven motor phases and switching power supplies. |
| Operating Temp. | –40 °C to +125 °C - qualified for under-hood automotive and industrial drive environments without derating. |
Pinout & Package
TLI4970D050T4 is housed in a leadless, surface-mount PG-TISON-8-1 package (7 mm × 7 mm, 0.55 mm height), optimized for high-current PCB traces and thermal dissipation via exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Supply voltage input | 3.3 V ±5 % digital supply for internal logic and SPI interface; decoupling required within 10 mm. |
| GND | Digital ground reference | Common return for VDD and SPI signals; must be isolated from power ground except at single-point star node. |
| SCLK | SPI clock input | Up to 5 MHz master-controlled clock; timing critical for reliable 16-bit frame capture. |
| MOSI | SPI data-in (config) | Used only for optional configuration writes (e.g., OCD threshold); typically left unconnected in read-only mode. |
| MISO | SPI data-out (current/status) | Drives 16-bit readout frame: bits [15:3] = current value, bits [2:0] = status flags (OCD, error, ready). |
| CSN | SPI chip select (active low) | Enables device during SPI transaction; must remain stable ≥100 ns before SCLK edge. |
| OCD | Open-drain overcurrent flag | Asserts low within ≤2.5 µs when sensed current exceeds programmed threshold; requires external pull-up. |
| EPAD | Exposed thermal pad | Internally connected to GND; must be soldered to large copper pour for thermal management and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Coreless magnetic sensing | Eliminates saturation, hysteresis, and temperature drift from ferromagnetic cores - enables stable ±50 A linearity over lifetime. |
| Differential Hall topology | Rejects >40 dB of uniform external magnetic fields - maintains accuracy near motors, transformers, or parallel busbars. |
| Integrated primary conductor | On-die 1.2 mΩ current path eliminates external shunt resistor losses and PCB layout sensitivity. |
| Configurable OCD threshold | Programmable via SPI (12-bit resolution) from 10 % to 120 % of full scale - supports adaptive fault protection across load conditions. |
| Reinforced galvanic isolation | 2.5 kV RMS isolation barrier certified per UL 1577 and IEC 60747-5-2 - enables direct connection to high-side IGBT gates without optocouplers. |
| 13-bit current resolution | 1 LSB = 12.2 mA over ±50 A range - provides sufficient granularity for torque control in PMSM motor drives. |
Applications
| Industrial Motor Drives | Renewable Energy Inverters |
|---|---|
Use Scenario: Real-time phase current feedback in 3-phase IGBT-based VFDs for HVAC compressors and pumps. IC Role / Device Role / Timing Role: Primary current sensing element in closed-loop field-oriented control (FOC), delivering synchronized 200 kHz bandwidth data to MCU ADC or SPI DMA. Use Value: Enables <1.0 % torque ripple and fast overload shutdown (<2.5 µs OCD) without core saturation at peak currents. |
Use Scenario: DC-link current monitoring in solar string inverters interfacing 600–1000 V PV arrays. IC Role / Device Role / Timing Role: Isolated high-side current sensor feeding protection logic and MPPT algorithms in microcontroller subsystem. Use Value: 2.5 kV isolation withstands transient surges; ±50 A range covers startup inrush and fault currents up to 120 A peak. |
| EV Onboard Chargers | Industrial UPS Systems |
Use Scenario: Bidirectional AC input and DC output current sensing in 6.6 kW OBCs with SiC MOSFETs. IC Role / Device Role / Timing Role: Dual-channel current monitor (input rectifier + output DC-DC stage) with shared SPI bus and independent OCD lines. Use Value: Coreless design avoids saturation during asymmetric half-cycle faults; 1.0 % initial accuracy ensures precise charge/discharge energy accounting. |
Use Scenario: Battery bank and inverter output current monitoring in 10–50 kVA three-phase UPS units. IC Role / Device Role / Timing Role: Isolated current sensor providing real-time load balancing and battery state-of-charge estimation. Use Value: Integrated thermal pad sustains 125 °C ambient; OCD output triggers bypass relays within 3 µs during short-circuit events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-accuracy isolated current sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ACS724LLCBTR-50AB-T | Analog output (ratiometric), no digital interface or OCD; ±1.5 % total error band; 2.4 kV isolation. | Lacks SPI configurability and fast digital fault signaling - requires external comparator for overcurrent. | Choose when system already uses analog-sampling ADCs and cost sensitivity outweighs digital integration benefits. |
| TMR2003D-50A | Tunnel magnetoresistance (TMR) sensing, ±0.7 % initial accuracy, 16-bit I²C output, but only 1.5 kV isolation. | Higher baseline accuracy but insufficient isolation for 400 V AC systems requiring reinforced insulation. | Prefer where ultra-low offset (<10 mA) is critical and isolation voltage can be met via external barriers or lower-voltage topologies. |
Compared with ACS724LLCBTR-50AB-T and TMR2003D-50A, the TLI4970D050T4 uniquely combines 2.5 kV reinforced isolation, programmable OCD, and coreless linearity - making it optimal for safety-critical industrial inverters where both accuracy and fail-fast response are mandatory.
Availability
TLI4970D050T4 is available at Aetrix Electronics and suitable for industrial motor drives, renewable energy inverters, EV onboard chargers, and industrial UPS systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TLI4970D050T4 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, sensing, and automotive ICs, with global R&D and manufacturing infrastructure.
The TLI4970 series belongs to Infineon's Sense & Control product line, engineered specifically for high-accuracy, isolated current measurement in demanding industrial and automotive power conversion systems.
FAQ
What is the maximum continuous current the TLI4970D050T4 can measure without derating?
The TLI4970D050T4 is rated for continuous ±50 A measurement across its full operating temperature range (–40 °C to +125 °C) with no derating required. Its integrated primary conductor has a typical resistance of 1.2 mΩ, resulting in ≤3 W power dissipation at ±50 A, which is thermally managed via the EPAD and PCB copper area per Infineon's layout guidelines.
Does the TLI4970D050T4 require external calibration during system production?
No. The TLI4970D050T4 features factory-trimmed offset and gain, and its coreless, differential Hall architecture eliminates hysteresis and aging drift. No end-of-line calibration is needed - initial accuracy of ±1.0 % is guaranteed at 25 °C without user intervention, and system-level calibration is optional for tighter tolerance applications.
How is the OCD threshold configured, and what is its minimum detectable overcurrent level?
The OCD threshold is configured via SPI write to the CONFIG register (address 0x01), using 12-bit resolution to set thresholds from 10 % to 120 % of full scale (i.e., ±5 A to ±60 A). The minimum detectable overcurrent is ±5 A with ≤2.5 µs latency, verified under worst-case temperature and supply conditions per datasheet Table 3-4.
Can the TLI4970D050T4 be used in automotive applications such as traction inverters?
The TLI4970D050T4 is qualified for industrial temperature range (–40 °C to +125 °C) and meets AEC-Q100 stress test requirements for human-body-model ESD (±2 kV), but it is not officially AEC-Q100 qualified. For automotive traction inverters, Infineon recommends the pin-compatible TLI4971 series, which adds extended qualification and enhanced EMC robustness per ISO 11452-4.
TLI4970D050T4XUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-PowerTDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- For Measuring:
- AC/DC
- Sensor Type:
- Hall Effect, Differential
- Current - Sensing:
- 50A
- Number of Channels:
- 1
- Output:
- SPI
- Sensitivity:
- -
- Frequency:
- DC ~ 18kHz
- Linearity:
- ±1.6%
- Accuracy:
- ±0.05%
- Voltage - Supply:
- 3.1V ~ 3.5V
- Response Time:
- 57µs
- Current - Supply (Max):
- 20mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Polarization:
- Bidirectional
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-TISON-8-1
TLI4970D050T4XUMA1 FAQ
1.How can I place an order for TLI4970D050T4XUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLI4970D050T4XUMA1 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 TLI4970D050T4XUMA1 reliable?
The price and inventory of TLI4970D050T4XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLI4970D050T4XUMA1 is usually 5 days.
3.What payment methods are accepted for TLI4970D050T4XUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLI4970D050T4XUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLI4970D050T4XUMA1?
TLI4970D050T4XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLI4970D050T4XUMA1 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 TLI4970D050T4XUMA1?
For technical support, including TLI4970D050T4XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLI4970D050T4XUMA1 requirements.
6.How does Aetrix verify that TLI4970D050T4XUMA1 is sourced from the original manufacturer or authorized distributors?
All TLI4970D050T4XUMA1 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 TLI4970D050T4XUMA1 meets industry standards.
7.What is the process for return or replacement of TLI4970D050T4XUMA1?
All TLI4970D050T4XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLI4970D050T4XUMA1, 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 TLI4970D050T4XUMA1 part is unused and in its original packaging.
Return procedure for TLI4970D050T4XUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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