Product Overview
The Allegro ACS724/5LMC is an economical and precise Hall-effect-based current sensor IC designed for AC or DC current sensing in industrial and communication systems. Its compact package is ideal for space-constrained applications, reducing board area and costs. The device features a low-offset, linear Hall sensor with a low-resistance (265 typical) copper conduction path, enabling efficient current sensing with minimal power loss. Differential Hall sensing rejects common-mode fields for improved accuracy in noisy environments. The sensor provides a factory-trimmed, ratiometric analog output voltage proportional to the primary sensed current. Key applications include solar inverters, DC/DC converters, electric vehicle on-board chargers, motor control, load detection, switched-mode power supplies, and overcurrent fault protection. The device is AEC-Q100 automotive qualified and offers high isolation ratings.
Product Attributes
- Brand: Allegro
- Technology: Hall-effect based
- Package Type: Custom SOIC16W-like (MC suffix)
- Conduction Path Resistance: 265 typical
- Certifications: AEC-Q100 automotive qualified, UL60950-1, UL62368
- Lead-free: Yes (internally), Matte Tin plating
Technical Specifications
| Model | Current Sensing Range (IPR) | Sensitivity (Sens) Typ. (VCC=5V) | Sensitivity (Sens) Typ. (VCC=3.3V) | Nominal VCC | Operating Temperature (TA) | Dielectric Strength Test Voltage (VISO) | Basic Isolation Working Voltage (VWVBI) | Reinforced Isolation Working Voltage (VWVRI) | Creepage (Dcl) | Clearance (Dcr) |
|---|---|---|---|---|---|---|---|---|---|---|
| ACS724LMCTR-20AB | 20 A | 100 mV/A | 66 mV/A | 5 V | -40 to 150 C | 5 kVRMS | 1140 VRMS / 1600 VDC | 757 VRMS / 813 VDC | > 8.2 mm | > 8.2 mm |
| ACS724LMCTR-30AB | 30 A | 66 mV/A | - | 5 V | -40 to 150 C | 5 kVRMS | 1140 VRMS / 1600 VDC | 757 VRMS / 813 VDC | > 8.2 mm | > 8.2 mm |
| ACS724LMCTR-65AB | 65 A | 30.75 mV/A | - | 5 V | -40 to 150 C | 5 kVRMS | 1140 VRMS / 1600 VDC | 757 VRMS / 813 VDC | > 8.2 mm | > 8.2 mm |
| ACS725LMCTR-20AB | 20 A | - | 66 mV/A | 3.3 V | -40 to 150 C | 5 kVRMS | 1140 VRMS / 1600 VDC | 757 VRMS / 813 VDC | > 8.2 mm | > 8.2 mm |
| Characteristic | Symbol | Test Conditions | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|---|
| Supply Voltage | VCC | ACS724 | - | 5 | - | V |
| Supply Voltage | VCC | ACS725 | - | 3.3 | - | V |
| Supply Current | ICC | - | - | 12 | 14 | mA |
| Primary Conductor Resistance | RIP | TA = 25C | - | 265 | - | |
| Internal Bandwidth | BW | small signal 3 dB, CL = 1nF | - | 120 | - | kHz |
| Rise Time | tr | IP = IP(max), TA = 25C, CL = 1 nF | - | 3 | - | s |
| Propagation Delay | tpd | IP = IP(max), TA = 25C, CL = 1 nF | - | 2 | - | s |
| Response Time | tRESPONSE | IP = IP(max), TA = 25C, CL = 1 nF | - | 4 | - | s |
| Power-On Time | tPO | TA = 25C, IP = IPR(max) applied | - | 80 | - | s |
2410161751_ALLEGRO-ACS724LMCTR-30AB-T_C19762001.pdf
Please Use Our Online Inquiry Contact Form Below If You Have Any Questions, Our Team Will Get Back To You As Soon As Possible
