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Infineon Technologies TLI4970-D050T5XUMA1
- Part No.:
- TLI4970-D050T5XUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Current Sensors
- Package:
- 8-TDFN
- Datasheet:
-
TLI4970-D050T5XUMA1.pdf
- Description:
- MAGNETIC SWITCH CURRENT SENSOR
- Quantity:
- Payment:
- Shipping:
Inventory:2,157
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Product details
Overview
TLI4970-D050T5 from Infineon Technologies is a coreless magnetic current sensor IC for isolated AC/DC current measurement up to ±50 A, featuring 16-bit SPI digital output (13-bit current data), galvanic isolation rated to 2.5 kV (UL 1577), fast overcurrent detection with configurable threshold, and integrated primary conductor eliminating external calibration. It operates across –40 °C to +125 °C and targets motor control, power supply monitoring, and industrial inverters.
For engineers reviewing the TLI4970-D050T5 datasheet, TLI4970-D050T5 pinout, TLI4970-D050T5 application, or TLI4970-D050T5 equivalent, key selection criteria include its ±50 A measurement range, 2.9 % initial accuracy, 13-bit SPI resolution, OCD response time of 2.5 µs, and PG-TISON-8-1 package compatibility with standard SMD reflow processes.
Technical Context
The TLI4970-D050T5 implements a differential Hall-based sensing architecture with on-chip signal conditioning, enabling hysteresis-free linear output and robust stray field rejection. Its integrated current rail provides inherent thermal tracking and eliminates air-gap sensitivity.
It delivers real-time current data via a 4-wire SPI interface (SCLK, MOSI, MISO, CSN) operating at up to 5 MHz, while the dedicated OCD pin asserts within 2.5 µs when current exceeds a user-configurable threshold-programmable in steps of 12.5 A from 12.5 A to 50 A-with optional deglitch filtering (100 ns or 1 µs).
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. |
| Accuracy (Initial) | ±2.9 % of reading - enables high-fidelity closed-loop control in motor drives without factory calibration. |
| Offset Error | Max. ±25 mA at 25 °C - ensures low-current resolution critical for standby power monitoring. |
| OCD Response Time | 2.5 µs typical - meets IGBT/SiC gate driver fault-clearance timing requirements in inverters. |
| Digital Interface | 4-wire SPI, 5 MHz max - allows deterministic readout synchronized with MCU control loops. |
| Isolation Rating | 2.5 kV RMS (UL 1577) - satisfies reinforced insulation requirements for industrial mains-connected systems. |
| Operating Temp. | –40 °C to +125 °C - supports under-hood automotive and high-temp industrial environments. |
| Package | PG-TISON-8-1 (7 mm × 7 mm, 0.55 mm height) - surface-mount QFN-like footprint compatible with automated assembly. |
Pinout & Package
TLI4970-D050T5 is housed in the PG-TISON-8-1 leadless QFN package (7 mm × 7 mm, 0.55 mm height), optimized for thermal performance and PCB space efficiency. The exposed thermal pad (EP) must be soldered to a copper pour for reliable heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Supply voltage input | 3.3 V ±5 % power rail; internal LDO regulates analog/digital domains. |
| GND | Ground reference | Analog and digital common return; tied to EP for thermal and noise integrity. |
| CSN | SPI chip select | Active-low enable for SPI communication; supports multi-sensor daisy-chain or parallel bus. |
| MOSI | SPI master-out-slave-in | Receives configuration commands (e.g., OCD threshold, filter settings) from host MCU. |
| MISO | SPI master-in-slave-out | Transmits 13-bit current value + 3-bit status bits (OCD flag, error codes) per frame. |
| SCLK | SPI clock input | Up to 5 MHz synchronous clock; defines timing for data sampling and setup/hold margins. |
| OCD | Overcurrent detection output | Open-drain, active-low signal asserting within 2.5 µs of threshold breach; configurable hysteresis and deglitching. |
| EP | Thermal pad / isolation barrier | Electrically connected to primary-side ground; requires solder mask opening and thermal via array to inner layers. |
Key Features
| Feature | Design Value |
|---|---|
| Coreless magnetic sensing | Eliminates saturation, hysteresis, and temperature drift associated with ferromagnetic cores - ensures stable linearity over lifetime. |
| Differential Hall architecture | Rejects >40 dB of uniform external magnetic fields - enables reliable operation near transformers, busbars, or adjacent phases. |
| Integrated primary conductor | Embedded Cu trace carries measured current; removes need for mechanical alignment, air gaps, or external shunts - reduces BOM and assembly cost. |
| Configurable OCD threshold | Eight programmable levels (12.5 A to 50 A in 12.5 A steps) via SPI - supports adaptive protection across load conditions without hardware changes. |
| 13-bit current + 3-bit status SPI frame | Delivers high-resolution current data with embedded fault flags (OCD, CRC error, overrange) - simplifies host firmware parsing and diagnostics. |
Applications
| Motor Control Systems | Industrial Power Supplies |
|---|---|
Use Scenario: Real-time phase current feedback in 3-phase BLDC/PMSM inverters driving HVAC compressors or industrial pumps. IC Role / Device Role / Timing Role: Primary current sensing element providing isolated, high-bandwidth feedback to FOC algorithm at 10–20 kHz PWM rates. Use Value: 2.5 µs OCD response enables safe shutdown before IGBT short-circuit failure; ±2.9 % accuracy maintains torque precision across temperature. | Use Scenario: Input/output current monitoring in modular AC-DC rectifiers and DC-DC converters for factory automation PLCs. IC Role / Device Role / Timing Role: Isolated secondary-side current monitor feeding protection logic and telemetry to system controller via SPI. Use Value: Integrated conductor and coreless design eliminate creepage/clearance constraints; 2.5 kV isolation meets IEC 62368-1 reinforced insulation requirements. |
| Renewable Energy Inverters | EV Onboard Chargers |
Use Scenario: DC-link and AC-grid current sensing in solar string inverters and battery energy storage systems. IC Role / Device Role / Timing Role: Bidirectional current measurement node interfacing directly with DSP/FPGA for MPPT and grid-synchronization control. Use Value: ±50 A range covers both startup surge and steady-state operation; 13-bit resolution supports precise energy metering and imbalance detection. | Use Scenario: Input AC current and isolated DC output current sensing in 6.6 kW OBC modules for Level 2 EV charging. IC Role / Device Role / Timing Role: Safety-critical current monitor feeding functional safety ASIL-B diagnostics path and main control loop. Use Value: UL 1577-certified 2.5 kV isolation satisfies ISO 26262 HV battery interface requirements; OCD output feeds hardware fault interrupt. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated current sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ACS724LLCTR-50AB-T | Galvanically isolated Hall-effect sensor with analog output (50 mV/A); no digital interface or OCD pin. | Lacks SPI configurability and fast digital fault signaling; requires external ADC and comparator circuitry. | Choose when analog output integration is preferred and system-level fault logic already exists. |
| TLE4971-50E5-U | Successor device from Infineon: same PG-TISON-8-1 package, enhanced accuracy (±1.2 %), extended bandwidth (300 kHz), but requires different SPI command set. | Not drop-in compatible due to register map and OCD timing differences; needs firmware update. | Choose for new designs requiring higher precision and faster dynamic response; not suitable for direct replacement. |
Compared with ACS724LLCTR-50AB-T, TLI4970-D050T5 reduces system component count by integrating digital output and hardware OCD, while versus TLE4971-50E5-U it offers proven field reliability and simpler firmware integration at slightly relaxed accuracy and bandwidth.
Availability
TLI4970-D050T5 is available at Aetrix Electronics and suitable for motor control systems, industrial power supplies, renewable energy inverters, and EV onboard chargers requiring stable component supply, long-term lifecycle support, and certified isolation performance.
Supply support for TLI4970-D050T5 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, sensor solutions, and automotive microcontrollers, with global R&D and manufacturing infrastructure.
The TLI4970 belongs to Infineon's XENSIV™ current sensor product line, engineered for high-accuracy, isolated current measurement in safety-critical industrial and automotive power conversion systems.
FAQ
What is the default OCD threshold level after power-on reset?
The TLI4970-D050T5 powers up with OCD threshold set to 50 A (full scale) and deglitch filter enabled at 1 µs. This default is stored in non-volatile configuration memory and persists across power cycles unless explicitly reprogrammed via SPI write to address 0x02.
Does the TLI4970-D050T5 require external passive components for basic operation?
No external passive components are required for core functionality. Only a 100 nF ceramic decoupling capacitor between VDD and GND (placed within 2 mm of the pins) is mandatory. Pull-up resistors on OCD and CSN are optional and application-dependent; no RC filters or termination networks are needed for SPI compliance at ≤5 MHz.
How is galvanic isolation achieved in the PG-TISON-8-1 package?
Isolation is implemented via molded compound and internal dielectric spacing between primary-side (current rail, EP) and secondary-side (VDD, GND, SPI pins) structures. The package meets UL 1577 (2.5 kV RMS) and IEC 60747-5-2 (reinforced insulation) without requiring external isolation barriers or optocouplers.
Can multiple TLI4970-D050T5 sensors share a single SPI bus?
Yes - the device supports parallel bus mode using individual CSN lines per sensor. All devices use identical SPI timing and frame format; the host MCU selects one sensor at a time via its dedicated CSN pin while sharing SCLK, MOSI, and MISO. Daisy-chaining is not supported.
TLI4970-D050T5XUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-TDFN
- Packaging:
- Bulk
- Product Status:
- Active
- For Measuring:
- AC/DC
- Sensor Type:
- Hall Effect, Differential
- Current - Sensing:
- 50A
- Number of Channels:
- 1
- Output:
- SPI
- Sensitivity:
- -
- Frequency:
- DC ~ 18kHz
- Linearity:
- ±3.5%
- Accuracy:
- ±0.05%
- Voltage - Supply:
- 3.1V ~ 3.5V
- Response Time:
- -
- Current - Supply (Max):
- 20mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Polarization:
- Unidirectional
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
TLI4970-D050T5XUMA1 FAQ
1.How can I place an order for TLI4970-D050T5XUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLI4970-D050T5XUMA1 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 TLI4970-D050T5XUMA1 reliable?
The price and inventory of TLI4970-D050T5XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLI4970-D050T5XUMA1 is usually 5 days.
3.What payment methods are accepted for TLI4970-D050T5XUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLI4970-D050T5XUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLI4970-D050T5XUMA1?
TLI4970-D050T5XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLI4970-D050T5XUMA1 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 TLI4970-D050T5XUMA1?
For technical support, including TLI4970-D050T5XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLI4970-D050T5XUMA1 requirements.
6.How does Aetrix verify that TLI4970-D050T5XUMA1 is sourced from the original manufacturer or authorized distributors?
All TLI4970-D050T5XUMA1 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 TLI4970-D050T5XUMA1 meets industry standards.
7.What is the process for return or replacement of TLI4970-D050T5XUMA1?
All TLI4970-D050T5XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLI4970-D050T5XUMA1, 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 TLI4970-D050T5XUMA1 part is unused and in its original packaging.
Return procedure for TLI4970-D050T5XUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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