Overview
The Allegro MicroSystems ACS714LLCTR-20A-T is an automotive-grade, fully-integrated Hall-effect current sensor IC designed to provide precise solutions for AC or DC current sensing. This device is optimized for use in various automotive and industrial applications, offering economical and accurate current measurement. The ACS714LLCTR-20A-T features a low-offset, linear Hall sensor circuit with a copper conduction path, ensuring high accuracy and reliability.
Key Specifications
| Parameter | Value |
|---|---|
| Current Range | ±20 A |
| Sensitivity | 100 mV/A |
| Internal Resistance | 1.2 mΩ (typical) |
| Package Type | SOIC8 (surface mount) |
| Leadframe Plating | 100% matte tin (Pb-free compatible) |
| Operating Temperature | -40°C to 150°C |
| Electrical Isolation | Terminals of the conductive path are electrically isolated from the sensor leads |
Key Features
- Precise and Linear Hall Sensor Circuit: Provides a low-offset, chopper-stabilized BiCMOS Hall IC for accurate current sensing.
- Compact and Surface Mount Package: SOIC8 package for easy implementation and space-saving design.
- Low Power Loss: Internal resistance of 1.2 mΩ typical, minimizing power loss during operation.
- Electrical Isolation: The conductive path terminals are isolated from the sensor leads, eliminating the need for opto-isolators or other isolation techniques.
- High Overcurrent Tolerance: The device can survive up to 5× overcurrent conditions due to the thickness of the copper conductor.
- ROHS3 Compliant: Compatible with standard lead (Pb) free printed circuit board assembly processes.
Applications
- Motor Control: Used in motor control systems for precise current monitoring and control.
- Load Detection and Management: Helps in detecting and managing loads in various automotive and industrial systems.
- Switched-Mode Power Supplies: Utilized in switched-mode power supplies for overcurrent protection and current monitoring.
- Overcurrent Fault Protection: Provides overcurrent fault protection to prevent system damage.
- Electric and Hybrid Vehicles: Used in electric and hybrid vehicle applications for current sensing and management.
Q & A
- What is the current range of the ACS714LLCTR-20A-T?
The current range of the ACS714LLCTR-20A-T is ±20 A.
- What type of sensor does the ACS714LLCTR-20A-T use?
The ACS714LLCTR-20A-T uses a Hall-effect sensor.
- What is the internal resistance of the conductive path in the ACS714LLCTR-20A-T?
The internal resistance of the conductive path is 1.2 mΩ typical.
- Is the ACS714LLCTR-20A-T ROHS compliant?
Yes, the ACS714LLCTR-20A-T is ROHS3 compliant.
- What is the package type of the ACS714LLCTR-20A-T?
The package type is SOIC8 (surface mount).
- Does the ACS714LLCTR-20A-T provide electrical isolation?
Yes, the terminals of the conductive path are electrically isolated from the sensor leads.
- What is the operating temperature range of the ACS714LLCTR-20A-T?
The operating temperature range is -40°C to 150°C.
- Can the ACS714LLCTR-20A-T survive overcurrent conditions?
Yes, the device can survive up to 5× overcurrent conditions.
- What are some common applications of the ACS714LLCTR-20A-T?
Common applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection.
- Is the ACS714LLCTR-20A-T suitable for use in electric and hybrid vehicles?
Yes, it is suitable for use in electric and hybrid vehicle applications.
