Product Overview
The Allegro ACS732 and ACS733 are high-bandwidth, Hall-effect-based current sensor ICs designed for accurate high-frequency current measurement in switching power applications like DC/DC converters. These devices offer high isolation, user-configurable overcurrent fault detection, and a low 1 m primary conductor resistance for minimal power loss. Their wide body SOIC-16 package simplifies integration into high-voltage systems, automotive, industrial, commercial, and communication applications. They are ideal for motor control, load detection and management, switch-mode power supplies, and overcurrent protection. The sensors provide an analog output voltage proportional to both AC and DC primary currents and are factory-trimmed for high accuracy.
Product Attributes
- Brand: Allegro
- Certifications: AEC-Q100 automotive qualified, UL60950-1 (ed. 2) certified
- Package: 16-Pin SOICW (suffix LA)
- Lead Finish: 100% matte tin
Technical Specifications
| Model | Optimized Range, IP (A) | Sensitivity (Typ) (mV/A) | Nominal Supply Voltage, VCC (V) | Operating Temperature (C) |
|---|---|---|---|---|
| ACS732KLATR-20AB-T | 20 | 100 | 5.0 | 40 to 125 |
| ACS732KLATR-40AB-T | 40 | 50 | 5.0 | 40 to 125 |
| ACS732KLATR-65AB-T | 65 | 30 | 5.0 | 40 to 125 |
| ACS732KLATR-65AU-T | 0 65 | 60 | 5.0 | 40 to 125 |
| ACS732KLATR-75AB-T | 75 | 26.6 | 5.0 | 40 to 125 |
| ACS733KLATR-20AB-T | 20 | 66 | 3.3 | 40 to 125 |
| ACS733KLATR-20AB-T-H | 20 | 66 | 3.3 | 40 to 125 |
| ACS733KLATR-40AB-T | 40 | 33 | 3.3 | 40 to 125 |
| ACS733KLATR-40AU-T | 0 40 | 66 | 3.3 | 40 to 125 |
| ACS733KLATR-65AB-T | 65 | 20 | 3.3 | 40 to 125 |
| General Specifications | ||||
| Bandwidth | 1 MHz | |||
| Primary Conductor Resistance | 1 m (typical) | |||
| Isolation Voltage (Dielectric Strength) | 3.6 kVRMS | |||
| Isolation Voltage (Basic Isolation Working Voltage) | 616 VRMS | |||
| Overcurrent Fault Detection | Externally configurable (50% to 200% IPR(MAX)) | |||
| Supply Voltage Options | 3.3 V and 5 V single supply |
2412111218_ALLEGRO-ACS732KLATR-75AB-T_C3684154.pdf
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