Overview
The Allegro™ ACS712ELCTR-05B-T, produced by Allegro MicroSystems, is a fully integrated, Hall-effect-based linear current sensor IC. This device offers economical and precise solutions for AC or DC current sensing in various applications, including industrial, commercial, and communications systems. The ACS712 is known for its small size and is available in a standard surface mount SOIC8 package, making it suitable for a wide range of applications where space is limited.
Key Specifications
| Characteristic | Symbol | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| Supply Voltage | VCC | 4.5 | 5.0 | 5.5 | V |
| Supply Current | ICC | - | 10 | 13 | mA |
| Operating Ambient Temperature | TA | -40 | - | 85 | °C |
| Maximum Junction Temperature | TJ(max) | - | - | 165 | °C |
| Storage Temperature | Tstg | -65 | - | 170 | °C |
| Current Sensing Range | IP | -5 | - | 5 | A |
| Sensitivity | Sens | - | 0.185 | - | V/A |
| Primary Conductor Resistance | RPRIMARY | - | 1.2 | - | mΩ |
| Rise Time | tr | - | 3.5 | - | μs |
| Frequency Bandwidth | f | - | 80 | - | kHz |
Key Features
- Low-Noise Analog Signal Path: The ACS712 features a low-noise analog signal path, ensuring high accuracy in current sensing applications.
- Adjustable Bandwidth: The device bandwidth can be set via the FILTER pin, allowing for customization based on application requirements.
- Fast Response Time: The ACS712 has a fast output rise time of 5 μs in response to step input current, making it suitable for high-speed applications.
- High Isolation: The device offers 2.4 kVRMS isolation and a low-resistance current conductor, enhancing safety and reliability.
- Compact Package: Available in a small SOIC8 surface mount package, making it ideal for space-constrained designs.
- Wide Operating Temperature Range: Operates over a temperature range of -40°C to 85°C, suitable for various environmental conditions.
Applications
- Industrial Systems: Used in motor control, power supplies, and other industrial automation applications.
- Commercial Systems: Suitable for use in commercial power systems, including UPS and power distribution units.
- Communications Systems: Applied in telecommunications and networking equipment for current monitoring and control.
- Automotive Systems: Qualified for automotive applications, including battery management and motor control systems.
Q & A
- What is the operating temperature range of the ACS712ELCTR-05B-T?
The operating temperature range is -40°C to 85°C.
- What is the typical supply current of the ACS712ELCTR-05B-T?
The typical supply current is 10 mA.
- What is the sensitivity of the ACS712ELCTR-05B-T?
The sensitivity is typically 0.185 V/A.
- How is the bandwidth of the ACS712ELCTR-05B-T adjusted?
The bandwidth can be adjusted via the FILTER pin.
- What is the maximum junction temperature of the ACS712ELCTR-05B-T?
The maximum junction temperature is 165°C.
- What is the primary conductor resistance of the ACS712ELCTR-05B-T?
The primary conductor resistance is typically 1.2 mΩ.
- What is the rise time of the ACS712ELCTR-05B-T?
The rise time is typically 3.5 μs.
- What is the frequency bandwidth of the ACS712ELCTR-05B-T?
The frequency bandwidth is typically 80 kHz.
- Is the ACS712ELCTR-05B-T RoHS compliant?
Yes, the device is Pb-free and RoHS compliant, except for flip-chip high-temperature Pb-based solder balls.
- In what package is the ACS712ELCTR-05B-T available?
The device is available in a SOIC8 surface mount package.
