ACS711KEXLT-31AB-T: Features, Specs & More
If you're building a power-sensitive system that demands accurate current measurement, the Allegro MicroSystems ACS711KEXLT-31AB-T deserves your attention. This compact yet powerful open loop current sensor offers an ideal solution for both AC and DC current sensing in applications like motor control, load detection, and overcurrent protection. In this comprehensive article, we'll delve into the intricacies of the ACS711KEXLT-31AB-T, uncovering its definition, key features, specifications, applications, and a closer look at its manufacturer.
Catalog
ACS711KEXLT-31AB-T's Manufacturer
ACS711KEXLT-31AB-T's Overview
The ACS711KEXLT-31AB-T is an open loop current sensor IC that measures AC or DC current up to ±31A RMS. It outputs an analog voltage proportional to the sensed current and operates on a single 3.3V supply. Designed for high efficiency, it provides a compact QFN surface-mount solution, which is perfect for modern PCB layouts. With an integrated Hall-effect sensor, it enables non-intrusive, galvanically isolated current monitoring.
Key Features
Let's delve into the standout features that make the ACS711KEXLT-31AB-T a standout in the world of electronics:
· Provides high-accuracy sensing up to ±31A.
· Features an integrated Hall-effect current sensing system.
· Operates with a single 3.3V supply.
· Offers high sensitivity of 45mV/A.
· Achieves fast response time of 4.6µs.
· Includes a compact 12-pin QFN EP package.
· Ensures stable operation from -40°C to 125°C.
· Supports both AC and DC current sensing.
· Designed for surface-mount installation.
Specifications
Now, let's take a closer look at the technical specifications that define the capabilities of the ACS711KEXLT-31AB-T:
Type | Parameter |
Type | Open Loop |
Module/IC Classification | IC |
Sensing Current Type | DC |
Typical RMS Primary Current (A) | ±31 |
Accuracy (%) | ±4 |
Typical Response Time (us) | 4.6 |
Maximum Output Voltage (V) | 7 |
Minimum Operating Supply Voltage (V) | 3 |
Typical Operating Supply Voltage (V) | 3.3 |
Maximum Operating Supply Voltage (V) | 5.5 |
Sensitivity (mV/A) | 45 |
Minimum Operating Temperature (°C) | -40 |
Maximum Operating Temperature (°C) | 125 |
Packaging | Tape and Reel |
Mounting | Surface Mount |
Package Height | 0.75 |
Package Width | 3 |
Package Length | 3 |
PCB changed | 12 |
Standard Package Name | QFN |
Supplier Package | QFN EP |
Pin Count | 12 |
Lead Shape | No Lead |
* ACS711KEXLT-31AB-T's Datasheet
Applications
Thanks to its precision, speed, and isolation capabilities, the ACS711KEXLT-31AB-T is widely used in:
· Electric motor control systems
· Battery monitoring and management
· Overcurrent fault detection
· Industrial automation and robotics
· Solar inverters and power converters
· Smart home appliances and IoT devices
· Consumer electronics power modules
ACS711KEXLT-31AB-T's Manufacturer
Allegro MicroSystems is a global semiconductor leader in sensor and power integrated circuits (ICs) and photonics. With more than 30 years of experience developing advanced semiconductor technology and application-specific algorithms, Allegro designs, develops, manufactures, and markets analog and mixed-signal semiconductors. The Company offers magnetic sensor integrated circuits (ICs), dual element switches, micropower switches, single output drivers, and LED drivers.
Conclusion
The Allegro ACS711KEXLT-31AB-T is more than just a current sensor—it's a compact, robust, and highly responsive component designed to deliver reliable current sensing across a wide range of applications. Its open loop Hall-effect architecture offers excellent isolation and safety while maintaining precision.
