Product Overview
The Allegro ACS723 current sensor IC is an economical and precise solution for AC or DC current sensing in industrial, commercial, and communication systems. Its small package is ideal for space-constrained applications, offering cost savings through reduced board area. Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection. The device features a low-offset, linear Hall sensor circuit with a copper conduction path, converting applied current into a proportional voltage. Accuracy is enhanced by patented digital temperature compensation, ensuring precise performance over temperature. The device offers high-side current sensing without costly isolation techniques due to electrically isolated sensor leads. It boasts industry-leading noise performance with improved bandwidth and pin-selectable bandwidth options (80 kHz or 20 kHz).
Product Attributes
- Brand: Allegro
- Certifications: UL60950-1 (ed. 2) certified, CB Certificate Number: US-32210-M1-UL, TV America Certificate Number: U8V 16 03 54214 040 CB 16 03 54214 039
- Package: 16-pin SOICW (suffix MA)
- Leadframe plating: 100% matte tin
- Device internal: Pb-free (except for flip-chip high-temperature Pb-based solder balls)
Technical Specifications
| Characteristic | Model | Value | Units | Notes |
|---|---|---|---|---|
| Current Sensing Range | ACS723KMATR-10AB-T | 10 | A | |
| Sensitivity (Typ.) | ACS723KMATR-10AB-T | 200 | mV/A | at VCC = 5.0 V |
| Current Sensing Range | ACS723KMATR-20AB-T | 20 | A | |
| Sensitivity (Typ.) | ACS723KMATR-20AB-T | 100 | mV/A | at VCC = 5.0 V |
| Current Sensing Range | ACS723KMATR-40AB-T | 40 | A | |
| Sensitivity (Typ.) | ACS723KMATR-40AB-T | 50 | mV/A | at VCC = 5.0 V |
| Operating Ambient Temperature | All Models | -40 to 125 | C | |
| Supply Voltage | All Models | 4.5 to 5.5 | V | Single supply operation |
| Primary Conductor Resistance (Typ.) | All Models | 0.85 | m | at TA = 25C |
| Bandwidth (BW_SEL tied to GND) | All Models | 80 | kHz | |
| Bandwidth (BW_SEL tied to VCC) | All Models | 20 | kHz | |
| Dielectric Strength Voltage | All Models | 4.8 | kVrms | UL60950-1 (ed. 2) |
| Basic Isolation Working Voltage | All Models | 1097 | Vrms | UL60950-1 (ed. 2) |
| Reinforced Isolation Working Voltage | All Models | 565 | Vrms | UL60950-1 (ed. 2) |
| Total Output Error (Typ.) | ACS723KMATR-10AB-T | 1.4 | % | IP = IPR(max), TA = 25C to 125C |
| Total Output Error (Typ.) | ACS723KMATR-20AB-T | 1.3 | % | IP = IPR(max), TA = 25C to 125C |
| Total Output Error (Typ.) | ACS723KMATR-40AB-T | 0.8 | % | IP = IPR(max), TA = 25C to 125C |
| Zero Current Output Voltage (Typ.) | All Models | VCC 0.5 | V | Bidirectional; IP = 0 A |
2504101957_ALLEGRO-ACS723KMATR-10AB-T_C3684308.pdf
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