Product Overview
The Allegro ACS723 current sensor IC is an economical and precise solution for AC or DC current sensing in industrial, commercial, and communications systems. Its small, low-profile SOIC8 package is ideal for space-constrained applications, reducing board area and costs. The device features a precise, low-offset, linear Hall sensor circuit with a low-resistance copper conduction path (0.65 m typical) for minimal power loss. Patented digital temperature compensation ensures accurate performance over temperature. The ACS723 offers galvanically isolated current sensing, eliminating the need for costly isolation techniques. It is UL60950-1 certified and provides industry-leading noise performance with selectable bandwidths (80 kHz or 20 kHz). Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection.
Product Attributes
- Brand: Allegro
- Certifications: UL60950-1 (ed. 2), TV America Certificate Number: U8V 18 02 54214 041 CB 14 11 54214 031, UL Certified File No.: US-32848-UL
- Package: 8-pin SOIC (suffix LC)
- Leadframe Plating: 100% matte tin
- Internal Material: Pb-free (except for flip-chip high-temperature Pb-based solder balls)
Technical Specifications
| Model | Primary Conductor Resistance (Typ.) | Sensitivity (Typ.) at VCC = 5 V | Current Sensing Range (IPR) | Zero Current Output Voltage (VIOUT(Q)) | Operating Ambient Temperature (TA Range) | Supply Voltage (VCC) | Supply Current (ICC) | Bandwidth (BW_SEL = GND) | Bandwidth (BW_SEL = VCC) | Dielectric Strength Test Voltage (VISO) | Working Voltage for Basic Isolation (VWVBI) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ACS723LLCTR-05AB-T | 0.65 m | 400 mV/A | 5 A | VCC 0.5 V (Bidirectional) | 40 to 150 C | 4.5 to 5.5 V | 9 - 14 mA | 80 kHz | 20 kHz | 2.4 kVrms | 420 Vpk / 297 Vrms |
| ACS723LLCTR-10AB-T | 0.65 m | 200 mV/A | 10 A | VCC 0.5 V (Bidirectional) | 40 to 150 C | 4.5 to 5.5 V | 9 - 14 mA | 80 kHz | 20 kHz | 2.4 kVrms | 420 Vpk / 297 Vrms |
| ACS723LLCTR-10AU-T | 0.65 m | 400 mV/A | 0 10 A | VCC 0.1 V (Unidirectional) | 40 to 150 C | 4.5 to 5.5 V | 9 - 14 mA | 80 kHz | 20 kHz | 2.4 kVrms | 420 Vpk / 297 Vrms |
| ACS723LLCTR-20AB-T | 0.65 m | 100 mV/A | 20 A | VCC 0.5 V (Bidirectional) | 40 to 150 C | 4.5 to 5.5 V | 9 - 14 mA | 80 kHz | 20 kHz | 2.4 kVrms | 420 Vpk / 297 Vrms |
| ACS723LLCTR-20AU-T | 0.65 m | 200 mV/A | 0 20 A | VCC 0.1 V (Unidirectional) | 40 to 150 C | 4.5 to 5.5 V | 9 - 14 mA | 80 kHz | 20 kHz | 2.4 kVrms | 420 Vpk / 297 Vrms |
| ACS723LLCTR-40AB-T | 0.65 m | 50 mV/A | 40 A | VCC 0.5 V (Bidirectional) | 40 to 150 C | 4.5 to 5.5 V | 9 - 14 mA | 80 kHz | 20 kHz | 2.4 kVrms | 420 Vpk / 297 Vrms |
| ACS723LLCTR-40AU-T | 0.65 m | 100 mV/A | 0 40 A | VCC 0.1 V (Unidirectional) | 40 to 150 C | 4.5 to 5.5 V | 9 - 14 mA | 80 kHz | 20 kHz | 2.4 kVrms | 420 Vpk / 297 Vrms |
| ACS723LLCTR-50AB-T | 0.65 m | 40 mV/A | 50 A | VCC 0.5 V (Bidirectional) | 40 to 150 C | 4.5 to 5.5 V | 9 - 14 mA | 80 kHz | 20 kHz | 2.4 kVrms | 420 Vpk / 297 Vrms |
Note: Variants [2] are not intended for automotive applications.
2404021106_ALLEGRO-ACS723LLCTR-10AU-T_C2688264.pdf
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