TLI4971-A050T5-U-E0001 50 A, 3.45 %, 3.1-3.5V, UL

Overview

XENSIV™ - TLI4971-A505T5-U-E0001 high precision coreless current sensor with analog interface and dual fast over-current detection outputs

The Infineon XENSIVTM TLI4971-A050T5-E0001 is a new sensor, pre-programmed to the 50A measurement range. In applications with medium currents, this coreless magnetic current sensor solution is usable for AC and DC measurements. Due to its 240kHz bandwidth the fast analog interface and dual fast over-current detection as well as the high precision current measurement ensures high flexibility in many application use cases. Infineon's well-established and robust Hall technology enables accurate and highly linear measurement of currents with a full measurement range up to ±50A full scale range. All negative effects (saturation, hysteresis) commonly known from sensors using flux concentration techniques are avoided.

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.

We offer two derivatives:

Summary of Features

  • Integrated current rail with typical 225µΩ insertion resistance enables ultra-low power loss
  • SMD package with very small form factor, 8x8mm for easy integration and board area saving
  • Single supply voltage, 3.1V to 3.5V
  • Highly accurate, scalable, DC & AC current sensing
  • Typical bandwidth of 240kHz
  • Very low sensitivity error over temperature (max. 2.5%)
  • Excellent stability of offset over temperature and lifetime
  • High robustness to voltage slew rates up to 10V/ns
  • Galvanic functional isolation up to 1150V peak VIORM. Partial discharge capability of at least 1200V. 4mm clearance and creepage.
  • 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)
  • TS: -40…+105°C
  • Precalibrated sensor

Potential Applications

  • Electrical drives (up to 690V)
  • Photovoltaic Inverter
  • General purpose inverters
  • Overload and over-current detection
  • Current monitoring
  • Chargers
  • Power supplies
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