The ACS724 is an automotive-grade, galvanically isolated current sensor IC with differential Hall sensing for common-mode field rejection, housed in a small-footprint SOIC8 package. It operates from a single 5 V supply and features a 1.2 mΩ primary conductor resistance, 120 kHz bandwidth, and a filter pin for bandwidth optimization. The device is AEC-Q100 qualified, supports operating temperatures from -40 to 150 °C, and provides a ratiometric analog output proportional to AC or DC current. The ACS724LLCTR-50AB-T variant measures up to ±50 A with a sensitivity of 40 mV/A and uses Pb-based solder bumps compliant with RoHS exemptions. It offers dielectric isolation rated for 2400 V RMS working voltage, 6000 V surge withstand, and 4.2 mm clearance and creepage. The output exhibits near-zero magnetic hysteresis and thermal stability through integrated digital compensation.
The ACS724/5 current sensors offer precise and stable current measurements in magnetically noisy environments, featuring differential sensing for common-mode rejection, galvanic isolation, and a wide operating temperature range. The ACS724 operates at 5V, while the ACS725 operates at 3.3V.
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Evaluation Boards
Manufacturer: Allegro MicroSystems, LLC
Win Source Part Number: 847984-ACS724LLCTR-5
Features: Current Sensor 1 Channel
Package: Reel - TR
Family Name: ACS724
Categories: Sensors
ECCN: EAR99
Popularity: Medium
Fake Threat In the Open Market: 34 pct.
Supply and Demand Status: Limited
Quantity per package: 3000
MSL Level: 2 (1 Year)
Estimated Pruduction Lead Time: 7 Weeks
REACH Status: REACH Unaffected
HTSUS: 8542.39.0001
CURRENT SENSOR HE/OL 50A 8-SOIC
CURRENT SENSOR HE/OL 50A 8-SOIC
"Current Sensor 50A 1 Channel Hall Effect, Open Loop Bidirectional 8-SOIC (0.154"", 3.90mm Width)"
50A SOIC-8 Current Sensors ROHS
| Allegro MicroSystems Inc. | Win Source Electronics | DigiKey | LCSC Electronics Technology (HK) Limited | |
|---|---|---|---|---|
| Product Category | Current Sensors | Current Sensors | Current Sensors | Current Sensors |
| Product Number | ACS724LLCTR-50AB-T | 847984-ACS724LLCTR-50AB-T | 620-ACS724LLCTR-50AB-TCT-ND | ACS724LLCTR-50AB-T |
| Product Name | High-Accuracy, 5V Isolated Current Sensor with Stray Field Rejection | Current Transducers - ACS724LLCTR-50AB-T | Current Sensors | Sensors >> Current Sensors |
| Technology | Hall-Effect | Hall-Effect | ||
| Current | 0.0 to 50 amps | 50 amps | 50 amps | |
| Voltage | 5 volts | 4.5 to 5.5 volts | 4.5 to 5.5 volts | |
| Frequency Range | 120000 Hz | 120000 Hz | ||
| Loop Type | Open Loop |
