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TLI4971 Dataheets PDF



Part Number TLI4971
Manufacturers Infineon
Logo Infineon
Description high precision coreless current sensor
Datasheet TLI4971 DatasheetTLI4971 Datasheet (PDF)

TLI4971 high precision coreless current sensor for industrial applications in 8x8mm SMD package Features & Benefits Description  Integrated current rail with typical 225µΩ insertion resistance enables ultra-low power loss  Smallest form factor, 8x8mm SMD, for easy integration and board area saving  Single supply voltage, 3.1V to 3.5V  High accurate, scalable, DC & AC current sensing  Full scale up to ±120A  Bandwidth greater than 120kHz enables wide range of applications  Low phase del.

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TLI4971 high precision coreless current sensor for industrial applications in 8x8mm SMD package Features & Benefits Description  Integrated current rail with typical 225µΩ insertion resistance enables ultra-low power loss  Smallest form factor, 8x8mm SMD, for easy integration and board area saving  Single supply voltage, 3.1V to 3.5V  High accurate, scalable, DC & AC current sensing  Full scale up to ±120A  Bandwidth greater than 120kHz enables wide range of applications  Low phase delay (< 48° at below 120kHz) for easy closed loop control  Very low sensitivity error over temperature (< 2.5%)  Excellent stability of offset over temperature and lifetime  Integrated isolator provides high robustness to voltage slew rates up to 10V/ns  Galvanic functional isolation up to 1150V peak VIORM  VISO 2500V RMS agency type-tested for 60 seconds per UL1577  Partial discharge capability of at least 1200V  Differential sensor principle ensures superior magnetic stray field suppression  Two independent fast Over-Current Detection (OCD) pins with configurable thresholds enable protection mechanisms for power circuitry (typical 0.7µs) TLI4971 is a high precision miniature coreless magnetic current sensor for AC and DC measurements with analog interface and two fast over-current detection outputs. Infineon's well-established and robust monolithic Hall technology enables accurate and highly linear measurement of currents with a full scale up to ±120A. All negative effects (saturation, hysteresis) commonly known from open loop sensors using flux concentration techniques are avoided. The sensor is equipped with internal self-diagnostic feature. Typical applications are electrical drives (up to 690V), current monitoring, chargers, photovoltaic inverters, general purpose inverters, overload and over-current detection. The digitally assisted analog concept of TLI4971 offers superior stability over temperature and lifetime thanks to the proprietary digital stress and temperature compensation. The differential measurement principle allows great stray field suppression for operation in harsh environments. The integrated primary conductor (current rail) with very low insertion resistance minimizes the power loss and enables miniaturization of sensing circuitry. A small 8mm x 8mm leadless package  Ratiometric and non ratiometric analog output (QFN-like) allows for standard SMD assembly.  Fully calibrated Two separate interface pins (OCD) provide a fast s output signal in case a current exceeds a pre-set threshold. The sensor is shipped as a fully calibrated product without requiring any customer end-of-line calibration. Nevertheless, the high configurability enables individual customization for a wide variety of applications. All user-programmable parameters such as OCD thresholds, blanking times and output configuration modes are stored in an embedded EEPROM memory. Programming of the memory can be performed in the application through a Serial Inspection and Configuration Interface (SICI). Coreless current sensor in PG-TISON-8 package Order Information Product Name Product Type Package Ordering Number TLI4971-A120T5-U-E0001 120A measurement range, UL certified device 1)2) PG-TISON-8 SP005272936 TLI4971-A120T5-E0001 120A measurement range 1)2) PG-TISON-8 SP005344532 1) Current sensor for industrial / consumer applications, qualified according to AEC Q100 grade 2 2) Semi-differential mode, non-ratiometric output sensitivity Datasheet www.infineon.com Please read the Important Notice and Warnings at the end of this document Revision 1.1 09-03-2020 TLI4971 Datasheet Pin Configuration IPN 7 6 8 5432 1 Figure 1 Pin layout PG-TISON-8-5 The current IPN is measured as a positive value when it flows from pin 8 (+) to pin 7 (-) through the integrated current rail. Pin configuration Pin No. Symbol 1 VDD 2 GND 3 VREF 4 AOUT 5 OCD1 6 OCD2 7 IP8 IP+ Function Supply voltage Ground Reference voltage input or output Analog signal output Over-current detection output 1 (open drain output) Over-current detection output 2 (open drain output) Negative current terminal pin (current-out) Positive current terminal pin (current-in) Target Applications The TLI4971 is suitable for AC as well as DC current measurement applications:  Electrical drives  Current monitoring  Photovoltaic & general purpose inverters  Overload and over-current detection  Chargers  etc. Due to its implemented magnetic interference suppression, it is extremely robust when exposed to external magnetic fields. The device is suitable for fast over-current detection with a configurable threshold level. This allows the control unit to switch off and protect the affected system from damage, independently from the main measurement path. Datasheet 2 Revision 1.1 09-03-2020 TLI4971 Datasheet General Description The current flowing through the current rail on the primary side i.


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