ACS71240 Overview
The Allegro™ ACS71240 current sensor IC is an economical and precise solution for AC or DC current sensing in industrial, automotive, mercial, and munications applications. The device consists of a precise, low-offset linear Hall sensor circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper path generates a magnetic field which is sensed by the...
ACS71240 Key Features
- AEC-Q100 automotive qualified
- Differential Hall sensing rejects mon-mode fields
- Integrated shield virtually eliminates capacitive coupling
- Industry-leading noise performance with greatly improved bandwidth through proprietary amplifier and filter design techn
- High bandwidth 120 kHz analog output for faster response times in control
ACS71240 Applications
- Patented integrated digital temperature pensation circuitry allows for near closed-loop accuracy over temperature in an open-loop sensor
- Single supply operation with nonratiometric output at 3.3 and 5 V options
- Overcurrent FAULT available between 50% and 200% IP with 1.5 µs (typ) response time
- Nonratiometric output provides immunity to noisy supplies
- Small footprint QFN-12 with wettable flank and SOIC-8 suitable for space-constrained automotive applications
- 0.6 mΩ (QFN-12) or 1.2 mΩ (SOIC-8) primary conductor resistance for low power loss and high inrush current withstand capability