Product Overview
The ACS732KMA and ACS733KMA are Allegro's next-generation, high-bandwidth current sensor ICs designed for accurate high-frequency current measurement in switching power applications like DC/DC converters. These Hall-effect based sensors offer high isolation, user-configurable overcurrent fault detection, and a 1 MHz analog output. Their compact, wide body SOIC-16 package facilitates easy integration into automotive, industrial, commercial, and communication systems. Applications include motor control, load detection, switch-mode power supplies, and overcurrent fault protection. The devices sense current differentially to reject common-mode fields and provide a precise, factory-programmed voltage output proportional to AC and DC current.
Product Attributes
- Brand: Allegro
- Package: 16-Pin SOICW (suffix MA)
- Certifications: AEC-Q100 automotive qualified, UL 60950-1 (ed. 2), UL 62368 (ed. 1)
- Isolation: High isolation, galvanic isolation
- Leadframe Plating: 100% matte tin
- Internal Construction: Lead-free
Technical Specifications
| Model | Optimized Range, IP (A) | Sensitivity (Typ) (mV/A) | Nominal Supply Voltage, VCC (V) | Operating Temperature (C) |
|---|---|---|---|---|
| ACS732KMATR-65AB-T | 65 | 30.77 | 5 | 40 to 125 |
| ACS732KMATR-75AB-T | 75 | 26.67 | 5 | 40 to 125 |
| ACS733KMATR-65AB-T | 65 | 20.3 | 3.3 | 40 to 125 |
| Characteristic | Symbol | Notes | Rating | Unit |
|---|---|---|---|---|
| Supply Voltage | VCC | 6 | V | |
| Output Voltage | VIOUT | 6 | V | |
| Maximum Continuous Current | ICMAX | TA = 25C | 60 | A |
| Nominal Operating Ambient Temperature | TA Range | 40 to 125 | C | |
| Maximum Junction Temperature | TJ(max) | 165 | C | |
| Storage Temperature | Tstg | 65 to 170 | C | |
| Primary Conductor Resistance | RIP | TA = 25C | 0.85 | m |
| Internal Bandwidth | BW | Small signal 3 dB; CL = 220 pF | 1 | MHz |
| Overcurrent Fault Response Time | tRESPONSE(F) | 0.2 to 0.75 | s | |
| Overcurrent Fault Range | IFAULT | Relative to IPR | 0.5 IPR to 2 IPR | A |
| Dielectric Strength Voltage | VISO | Agency rated for 60 seconds per UL 62368-1 (edition 3) | 3125 | VRMS |
| Basic Isolation Working Voltage | VWVBI | According to UL 62368-1 (edition 3) | 1097 | VRMS |
| Reinforced Isolation Working Voltage | VWVRI | According to UL 62368-1 (edition 3) | 565 | VRMS |
2504101957_ALLEGRO-ACS732KMATR-65AB-T_C3684192.pdf
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