current sensing ALLEGRO ACS724LMCTR-20AB-T with low offset and compact SOIC16W like package design
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 SOIC16W-like package is ideal for space-constrained applications, reducing board area and costs. The device features a low-offset, linear Hall sensor circuit 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 output voltage is proportional to the sensed current and is factory-trimmed for high accuracy over temperature. Applications include solar inverters, DC/DC converters, electric vehicle on-board chargers, motor control, load detection, switched-mode power supplies, and overcurrent fault protection.
Product Attributes
- Brand: Allegro
- Certifications: AEC-Q100 automotive qualified; UL60950-1 (ed. 2) and UL 62368 (ed. 1) certification; CB Certificate Number: US-35763-UL, US-35764-UL; TV America Certificate Number: U8V 16 03 54214 040, CB 16 03 54214 039
- Package Type: Custom SOIC16W-like
- Material: Leadframe plated with 100% matte tin; internally Pb-free
Technical Specifications
| Model | IPR (A) | Sens (Typ) (mV/A) | Nominal VCC (V) | TA (C) | Package |
|---|---|---|---|---|---|
| ACS724LMCTR-20AB-T | 20 | 100 | 5 | 40 to 150 | SOIC16W-like |
| ACS724LMCTR-30AB-T | 30 | 66 | 5 | 40 to 150 | SOIC16W-like |
| ACS724LMCTR-65AB-T | 65 | 30.75 | 5 | 40 to 150 | SOIC16W-like |
| ACS725LMCTR-20AB-T | 20 | 66 | 3.3 | 40 to 150 | SOIC16W-like |
| Characteristic | Symbol | Notes | Rating | Unit |
|---|---|---|---|---|
| Supply Voltage | VCC | 6 | V | |
| Reverse Supply Voltage | VRCC | 0.1 | V | |
| Output Voltage | VIOUT, VFILTER | VIOUT and FILTER pins | VCC + 0.5 | V |
| Reverse Output Voltage | VRIOUT, VRFILTER | VIOUT and FILTER pins | 0.1 | V |
| Operating Ambient Temperature | TA Range L | 40 to 150 | C | |
| Junction Temperature | TJ(max) | 165 | C | |
| Storage Temperature | Tstg | 65 to 165 | C | |
| Withstand Voltage | VISO | Agency rated for 60 seconds per UL 62368-1 (edition 3) | 5000 | VRMS |
| Working Voltage for Basic Isolation | VWVBI | Maximum approved working voltage for basic (single) isolation according to UL 62368-1 (edition 3) | 1618 VPK or VDC / 1144 VRMS | V |
| Working Voltage for Reinforced Isolation | VWVRI | Maximum approved working voltage for reinforced isolation according to UL 62368-1 (edition 3) | 809 VPK or VDC / 572 VRMS | V |
| Clearance | DCL | Minimum distance through air from IP leads to signal leads | 8.7 | mm |
| Creepage | DCR | Minimum distance along package body from IP leads to signal leads | 8.7 | mm |
| Distance Through Insulation | DTI | Minimum internal distance through insulation | 110 | m |
| Primary Conductor Resistance | RIP | TA = 25C | 265 | |
| Package Thermal Resistance (Junction to Ambient) | RJA | Mounted on the standard MC current sensor evaluation board (ACSEVB-MC16) | 19 | C/W |
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