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Specifications
working temperature:
-40℃~+125℃
Current Range:
10A
Voltage - Supply:
3V~3.6V
Current Terminal Resistance:
0.85mΩ
Response Time (tr):
4us
Sensitivity:
132mV/A
Bidirectional Current Detection:
Support
Mfr. Part #:
ACS722KMATR-10AB-T
Package:
SOIC-16
Key Attributes
Model Number:
ACS722KMATR-10AB-T
Product Description
Product Overview
The Allegro ACS722 is a highly accurate, Hall-effect-based current sensor IC designed for AC or DC current sensing in industrial, commercial, and communication systems. Its economical and precise solution features a low-offset, linear Hall sensor circuit with a low-resistance copper conduction path (0.85 m typical) for minimal power loss. The device's small SOIC16 package is ideal for space-constrained applications, offering significant cost savings. Key benefits include patented digital temperature compensation for excellent accuracy over temperature, industry-leading noise performance with improved bandwidth, and high isolation capabilities, eliminating the need for costly isolation techniques. Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection.
Product Attributes
- Brand: Allegro
- Certifications: UL60950-1 (ed. 2) certified, TV America Certificate Number: U8V 16 03 54214 040, CB Certificate Number: US-32210-M1-UL, CB 16 03 54214 039
- Package: SOIC16 (MA)
- Material: Leadframe plated with 100% matte tin. Internally Pb-free (except for flip-chip high-temperature Pb-based solder balls).
Technical Specifications
| Characteristic | Symbol | Test Conditions | Value | Units |
|---|---|---|---|---|
| General Specifications | ||||
| Primary Conductor Resistance | RIP | TA = 25C | 0.85 | m |
| Supply Voltage | VCC | 3 to 3.6 | V | |
| Supply Current | ICC | VCC within VCC(min) and VCC(max) | 9 | mA |
| Internal Bandwidth (BW_SEL tied to GND) | BWi | Small signal 3 dB; CL = 1 nF | 80 | kHz |
| Internal Bandwidth (BW_SEL tied to VCC) | BWi | Small signal 3 dB; CL = 1nF | 20 | kHz |
| Input referenced noise (BW_i = 80 kHz) | IN | TA = 25C, CL = 1 nF | 84 | mA(rms) |
| Input referenced noise (BW_i = 20 kHz) | IN | TA = 25C, CL = 1 nF | 42 | mA(rms) |
| Nonlinearity | ELIN | Through full range of IP | 1 | % |
| Power-On Time | tPO | TA = 25C, IP = IPR(max) applied | 64 | s |
| Selection Guide Models | ||||
| Part Number | IPR (A) | Sens(Typ) at VCC = 3.3 V (mV/A) | TA (C) | Packing |
| ACS722KMATR-10AB-T | 10 | 132 | 40 to 125 | Tape and Reel, 3000 pieces per reel |
| ACS722KMATR-20AB-T | 20 | 66 | 40 to 125 | Tape and Reel, 3000 pieces per reel |
| ACS722KMATR-40AB-T | 40 | 33 | 40 to 125 | Tape and Reel, 3000 pieces per reel |
| Accuracy Performance (ACS722KMATR-10AB-T) | ||||
| Current Sensing Range | IPR | 10 | A | |
| Sensitivity | Sens | IPR(min) < IP < IPR(max) | 132 | mV/A |
| Total Output Error | ETOT | IP = IPR(max), TA = 25C to 125C | 1.7 | % |
| Total Output Error | ETOT | IP = IPR(max), TA = 40C to 25C | 2.5 | % |
| Sensitivity Error | ESENS | TA = 25C to 125C; measured at IP = IPR(max) | 1.5 | % |
| Sensitivity Error | ESENS | TA = 40C to 25C; measured at IP = IPR(max) | 2.3 | % |
| Offset Voltage | VOE | IP = 0 A; TA = 25C to 125C | 7 | mV |
| Offset Voltage | VOE | IP = 0 A; TA = -40C to 25C | 20 | mV |
| Accuracy Performance (ACS722KMATR-20AB-T) | ||||
| Current Sensing Range | IPR | 20 | A | |
| Sensitivity | Sens | IPR(min) < IP < IPR(max) | 66 | mV/A |
| Total Output Error | ETOT | IP = IPR(max), TA = 25C to 125C | 1.2 | % |
| Total Output Error | ETOT | IP = IPR(max), TA = 40C to 25C | 2.1 | % |
| Sensitivity Error | ESENS | TA = 25C to 125C; measured at IP = IPR(max) | 0.75 | % |
| Sensitivity Error | ESENS | TA = 40C to 25C; measured at IP = IPR(max) | 1.25 | % |
| Offset Voltage | VOE | IP = 0 A; TA = 25C to 125C | 4.5 | mV |
| Offset Voltage | VOE | IP = 0 A; TA = -40C to 25C | 10 | mV |
| Accuracy Performance (ACS722KMATR-40AB-T) | ||||
| Current Sensing Range | IPR | 40 | A | |
| Sensitivity | Sens | IPR(min) < IP < IPR(max) | 33 | mV/A |
| Total Output Error | ETOT | IP = IPR(max), TA = 25C to 125C | 1.25 | % |
| Total Output Error | ETOT | IP = IPR(max), TA = 40C to 25C | 2 | % |
| Sensitivity Error | ESENS | TA = 25C to 125C; measured at IP = IPR(max) | 1.2 | % |
| Sensitivity Error | ESENS | TA = 40C to 25C; measured at IP = IPR(max) | 1.75 | % |
| Offset Voltage | VOE | IP = 0 A; TA = 25C to 125C | 3 | mV |
| Offset Voltage | VOE | IP = 0 A; TA = -40C to 25C | 5 | mV |
| Isolation Characteristics | ||||
| Dielectric Strength Test Voltage | VISO | Agency type-tested for 60 seconds per UL 60950-1 (edition. 2). Production tested at 3000 VRMS for 1 second, in accordance with UL 60950-1 (edition. 2). | 4800 | VRMS |
| Working Voltage for Basic Isolation | VWVBI | According to UL 60950-1 (edition 2) | 1097 | VRMS or VDC |
| Working Voltage for Reinforced Isolation | VWVRI | According to UL 60950-1 (edition 2) | 565 | VRMS or VDC |
| Clearance | Dcl | Minimum distance through air from IP leads to signal leads. | 7.5 | mm |
| Creepage | Dcr | Minimum distance along package body from IP leads to signal leads | 8.2 | mm |
| Absolute Maximum Ratings | ||||
| Supply Voltage | VCC | 6 | V | |
| Maximum Continuous Current | ICMAX | TA = 25C | 60 | A |
| Operating Ambient Temperature | TA Range | 40 to 125 | C | |
| Junction Temperature (max) | TJ(max) | 165 | C | |
2404151029_ALLEGRO-ACS722KMATR-10AB-T_C459313.pdf
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