TLE4971-A050N5-E0001 | 50 A, <2 %, 3.1-3.5V

Overview

XENSIV™ - TLE4971-A050N5-E0001 high precision coreless current sensor with analog interface and dual fast over-current detection outputs

The Infineon XENSIV TLE4971-A050N5-E0001 is a new automotive qualified current 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 210kHz bandwidth the fast analog interface and two fast over-current detection outputs 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 TLE4971 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 up to 125°C.

We offer two derivatives:

TLE4971-A050N5-U-E0001 with 50A measurement range, UL certified device
TLE4971-A050N5-E0001 with 50A measurement range

Summary of Features

Integrated current rail with typical 220µΩ 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 210kHz
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 V_IORM. 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)
T_S: -40…+125°C
AEC-Q100 grade 1 qualified
Pre-calibrated sensor