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Allegro 電流センサー
Automotive Current Sensor IC with Fast Overcurrent Fault and Common-Mode Rejection
ACS71240
The ACS71240 offers a robust and precise current sensing solution for automotive applications, featuring differential sensing for common-mode rejection, a fast overcurrent fault output, and high accuracy (±1%) for reliable operation.
Product Details
Product Details
Top Features
- AEC-Q100 qualified
- Differential Hall sensing rejects common-mode stray magnetic fields
- Overcurrent FAULT with a Factory Programmable trip range of 50% to 200% of full-scale current
- Non-Ratiometric output provides immunity to noisy supplies
- Galvanically Isolated:
- QFN package: 120VDC working voltage
- SOIC8 package: UL certified to 2400VRMS, working voltage of 420VDC or 297VRMS
- Reduced Power Loss:
- 0.6 mΩ internal conductor resistance on QFN package
- 1.2 mΩ internal conductor resistance on SOIC8 package
- Integrated shield virtually eliminates capacitive coupling from current conductor to die, greatly suppressing output noise due to high dv/dt transients
- Output voltage proportional to AC or DC current
- High-bandwidth 120 kHz analog output for faster response times in control applications
- Factory-trimmed sensitivity and quiescent output voltage for improved accuracy
- 3.3 and 5 V single supply operation
- Small footprint, low-profile QFN and SOIC8 packages suitable for space-constrained applications
Part Number Specifications and Availability
Technical Documentation
Application Note
How to Analyze and Compare Allegro Current Sensor and ADC Error Components
Application Note
Managing External Magnetic Field Interference When Using ACS71x Current Sensor ICs
Application Note
Package Thermal Resistance for Allegro Current Sensors with Integrated Conductors
Application Note
Glossary of Isolation-Related Terms for Integrated Current Sensors
Application Note
Current Sensing in Motor Drives
Blog
Magnetic Sensors are a Great Alternative to Traditional Shunt Resistors for Industrial Current Sensing
Brochure
Brochure: Driving Change by Advancing Personal Mobility Through Cutting-Edge Technology
Brochure
Enhancing Robotic Design
Certificate
Certificate of Compliance 20181207-E316429
Certificate
Certificate CB US 42876 UL LC Package
FAQ
Current Sensors FAQ
Guide
ACS71240 Samples Programmer
Technical Article
Common Driver Platform for 12V and 48V Systems Simplifies EV Starter Generator Designs
Technical Article