سنسور و مبدل سنسور جریان

Product Attributes

Introduction

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 and general purpose inverters. The differential measurement principle allows great stray field suppression for operation in harsh environments. Two separate interface pins (OCD) provide a fast 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. All user-programmable parameters such as OCD thresholds, blanking times and output configuration modes are stored in an embedded EEPROM memory.

Features

• Integrated current rail with typical 220μΩ insertion resistance enables ultra-low power loss
• Less than 1nH parasitic inductance of integrated current rail enables wide bandgap design
• Bandwidth of 240kHz enables wide range of applications
• 8x8mm form factor
• Very low sensitivity error over temperature
• Galvanic functional isolation up to 1150V VISO 3500V RMS agency type-tested for 60 seconds per UL1577
• Differential sensing principle
• Two independent ultrafast Over Current Detection outputs
• Coreless current sensor in PG-TISON-8 package

Applications

• Electrical drives
• General purpose inverters
• PV inverters
• Chargers
• Current monitoring
• Overload and over-current detection