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High accuracy current sensor ALLEGRO CT431-HSWF30MR with integrated overcurrent detection and low noise output
High accuracy current sensor ALLEGRO CT431-HSWF30MR with integrated overcurrent detection and low noise output
High accuracy current sensor ALLEGRO CT431-HSWF30MR with integrated overcurrent detection and low noise output
High accuracy current sensor ALLEGRO CT431-HSWF30MR with integrated overcurrent detection and low noise output
High accuracy current sensor ALLEGRO CT431-HSWF30MR with integrated overcurrent detection and low noise output
High accuracy current sensor ALLEGRO CT431-HSWF30MR with integrated overcurrent detection and low noise output
Specifications
working temperature :
-40℃~+125℃
Current Range :
±30A
Voltage - Supply :
3.3V
Band Width :
1MHz
Current Terminal Resistance :
1mΩ
Response Time (tr) :
300ns
Sensitivity :
33.3mV/A
Bidirectional Current Detection :
Support
Description :
±30A 33.3mV/A SOIC-16W Current Sensors RoHS
Mfr. Part # :
CT431-HSWF30MR
Model Number :
CT431-HSWF30MR
Package :
SOIC-16W
Description

Product Overview

The CT431 is a high-bandwidth, ultra-low noise integrated contact current sensor utilizing Allegro's XtremeSense TMR technology for high-accuracy current measurements. It supports nine current ranges, with the integrated current-carrying conductor (CCC) handling up to 65 A and providing a linear analog output voltage. The device boasts a total output error of less than 1.0% full-scale (FS) across voltage and temperature, a ~300 ns output response time, and immunity to common mode fields. It features integrated overcurrent detection (OCD) circuitry with a fault output (FLT) pin for alerting microcontrollers to out-of-range currents. Offered in an industry-standard, green, RoHS-compliant 16-lead SOIC wide package, the CT431 is suitable for industrial, consumer, and automotive applications including solar/power inverters, UPS, SMPS, telecom power supplies, battery management systems, motor control, white goods, and power utility meters.

Product Attributes

  • Brand: Allegro MicroSystems
  • Technology: XtremeSense TMR
  • Package Type: 16-lead SOIC Wide (SOICW)
  • Certifications: UL/IEC 62368-1, UL1577, AEC-Q100 Grade 1
  • Compliance: Green, RoHS Compliant
  • Isolation Voltage (Rated): 5 kVRMS
  • Working Voltage for Basic Isolation: 1100 VRMS
  • Working Voltage for Reinforced Isolation: 550 VRMS

Technical Specifications

Model Current Range (IPMAX) (A) Sensitivity (mV/A) Operating Temperature Range (C) Bandwidth (MHz) Response Time (ns) Total Output Error (% FS) Supply Voltage (V) Current Consumption (mA) Package Package Dimensions (mm)
CT431-HSWF20MR / CT431-ASWF20MR 20 50 40 to 125 1.0 ~300 1.0 3.0 to 3.6 ~6.0 16-lead SOICW 10.21 10.31 2.54
CT431-HSWF30MR / CT431-ASWF30MR 30 33.3 40 to 125 1.0 ~300 1.0 3.0 to 3.6 ~6.0 16-lead SOICW 10.21 10.31 2.54
CT431-HSWF40MR 40 25 40 to 125 1.0 ~300 1.0 3.0 to 3.6 ~6.0 16-lead SOICW 10.21 10.31 2.54
CT431-HSWF50MR / CT431-ASWF50MR 50 20 40 to 125 1.0 ~300 1.0 3.0 to 3.6 ~6.0 16-lead SOICW 10.21 10.31 2.54
CT431-HSWF65MR / CT431-ASWF65MR 65 15.4 40 to 125 1.0 ~300 1.0 3.0 to 3.6 ~6.0 16-lead SOICW 10.21 10.31 2.54
CT431-HSWF20DR / CT431-ASWF20DR 0 to 20 100 40 to 125 1.0 ~300 1.0 to 1.5 3.0 to 3.6 ~6.0 16-lead SOICW 10.21 10.31 2.54
CT431-HSWF30DR / CT431-ASWF30DR 0 to 30 66.7 40 to 125 1.0 ~300 1.0 3.0 to 3.6 ~6.0 16-lead SOICW 10.21 10.31 2.54
CT431-HSWF50DR / CT431-ASWF50DR 0 to 50 40 40 to 125 1.0 ~300 1.5 3.0 to 3.6 ~6.0 16-lead SOICW 10.21 10.31 2.54
CT431-HSWF65DR / CT431-ASWF65DR 0 to 65 30.8 40 to 125 1.0 ~300 1.5 3.0 to 3.6 ~6.0 16-lead SOICW 10.21 10.31 2.54
Supply Voltage (VCC) 3.0 to 3.6 V
Output Response Time ~300 ns
Bandwidth 1.0 MHz
Common Mode Field Rejection Ratio (CMFRR) 54 dB
Overcurrent Detection (OCD) Threshold 110% of maximum current range (unipolar), 110% (bipolar)
Undervoltage Lockout (UVLO) Threshold Rising: 2.50 V, Falling: 2.45 V
Fault Output (FLT) Type Open-drain, active low digital signal
Primary Conductor Resistance (RIP) ~0.5 m

2408081044_ALLEGRO-CT431-HSWF30MR_C22442741.pdf

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High accuracy current sensor ALLEGRO CT431-HSWF30MR with integrated overcurrent detection and low noise output

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Product Detail
working temperature :
-40℃~+125℃
Current Range :
±30A
Voltage - Supply :
3.3V
Band Width :
1MHz
Current Terminal Resistance :
1mΩ
Response Time (tr) :
300ns
Contact Supplier
High accuracy current sensor ALLEGRO CT431-HSWF30MR with integrated overcurrent detection and low noise output
High accuracy current sensor ALLEGRO CT431-HSWF30MR with integrated overcurrent detection and low noise output
High accuracy current sensor ALLEGRO CT431-HSWF30MR with integrated overcurrent detection and low noise output

Changsha Purple Horn E-Commerce Co., Ltd.

Verified Supplier
1 Years
hunan, changsha
Since 2009
Business Type :
Manufacturer, Distributor/Wholesaler, Agent, Importer
Main Products :
Analog and Digital Output, Pressure Sensors, Transducers, Sensor, Transducer Amplifiers
Employee Number :
300~500
Certification Level :
Verified Supplier
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