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Small sized high speed current sensor AKM CQ2235 using quantum well InAs Hall effect sensor technology

Categories Current Sensors
working temperature: -40℃~+150℃
Current Range: 85A
Voltage - Supply: 2.7V~3.63V
Sensitivity: 15.5mV/A
Description: 85A 15.5mV/A Through Hole Current Sensors RoHS
Mfr. Part #: CQ2235
Model Number: CQ2235
Package: Through Hole
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Small sized high speed current sensor AKM CQ2235 using quantum well InAs Hall effect sensor technology

Product Overview

The CQ-2235 is a high-speed, small-sized, open-type current sensor that utilizes a Quantum Well ultra-thin film InAs Hall sensor. It provides an analog voltage output proportional to AC/DC current, enabling high-accuracy and high-speed current sensing. The integrated AI-Shell package, combining the Hall sensor, magnetic core, and primary conductor, ensures space-saving design and high reliability. It is suitable for applications requiring electrical isolation between the primary conductor and the sensor signal, operating on a 3.3V single supply.

Product Attributes

  • Brand: Asahi Kasei Microdevices (AKM)
  • Sensor Type: Hall Effect
  • Package Type: AI-Shell
  • Material: Quantum well ultra-thin film InAs (Indium Arsenide) for Hall sensor; Halogen-free
  • Certifications: IEC/UL 60950-1, UL 508, CSA C22.2 No. 14 (IEC 62109 certification pending)
  • RoHS Compliant: Yes

Technical Specifications

ParameterSymbolConditionsMin.Typ.Max.UnitsNotes
Maximum Primary Current (RMS)IRMSmax-5050A
Current ConsumptionIDDNo loads6.29.6mA
SensitivityVhSee Figure 515.5mV/ANote 1
Offset VoltageVofIIN = 0A1.650VNote 1
Linear Sensing RangeINS-8585A
Linearity ErrorSee Figure 5, Figure 6-11%F.S.Note 1
Rise Response TimetrCL = 100pF, See Figure 91s
Fall Response TimetfCL = 100pF, See Figure 91s
BandwidthfT-3dB, CL = 100pF300kHz
Output NoiseVNrms100Hz to 4MHz1.2mVrmsNote 2
Temperature Drift of SensitivityVh-dmaxTa = 40 to 110C, See Figure 70.4%
Temperature Drift of Offset VoltageVof-dmaxTa = 40 to 110C, IIN = 0A, See Figure 82.5mV
Ratiometric Error of SensitivityVh-RVDD = 2.97V to 3.63V-11%Note 2
Ratiometric Error of Offset VoltageVof-RVDD = 2.97V to 3.63V, IIN = 0A-0.60.6%F.S.Note 2
Total AccuracyETOTa = 40 to 110C, 54A IIN 54A1.3%F.S.Note 3
Primary Conductor ResistanceR1100
Isolation VoltageVINSAC 50/60Hz, 60sec3kVNote 2
Isolation ResistanceRINSDC 1kV500MNote 2
Clearance DistancedCLbetween the primary and the secondary13.3mmNote 2
Creepage DistancedCPbetween the primary and the secondary13.3mmNote 2
Supply VoltageVDDRecommended Operating Conditions2.73.33.63V
Analog Output CurrentIOUTRecommended Operating Conditions-0.50.5mAVOUT pin
Output Load CapacitanceCLRecommended Operating Conditions100pFVOUT pin
Operating Ambient TemperatureTaRecommended Operating Conditions-40110CSee Figure 4

Notes:
Note 1: These parameters can drift by the values in 14. Reliability Tests after the reflow and over the lifetime of this product.
Note 2: These parameters are guaranteed by design.
Note 3: Total accuracy ETO is calculated by the equation below. ETO = |100 (Vh_meas 15.5) / 15.5| + |100 (Vof_meas Vof_meas_35) / (15.5 85 2)| + |meas|


2411272100_AKM-CQ2235_C1574473.pdf

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