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Accurate AC DC current sensor AKM CQ2233 with electrical isolation and fast response time in compact design

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Accurate AC DC current sensor AKM CQ2233 with electrical isolation and fast response time in compact design

working temperature : -40℃~+150℃

Current Range : 35A

Voltage - Supply : 2.7V~3.63V

Sensitivity : 37.5mV/A

Description : 35A 37.5mV/A Current Sensors RoHS

Mfr. Part # : CQ2233

Model Number : CQ2233

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Product Overview

The CQ-2233 is an open-type current sensor utilizing Hall sensor technology to provide an analog voltage output proportional to AC/DC current. It features a quantum well ultra-thin film InAs Hall sensor for high-accuracy and high-speed current sensing. The compact AI-Shell package integrates the Hall sensor, magnetic core, and primary conductor, ensuring space-saving design and high reliability. This bidirectional sensor offers electrical isolation between the primary conductor and the sensor signal, operates on a 3.3V single supply, and provides a ratiometric output. It is designed for low variation and low temperature drift of sensitivity and offset voltage, with low noise output and a fast response time. The CQ-2233 is compliant with IEC/UL 62368-1, UL 508, CSA C22.2 No. 14, and IEC 62109 (certification pending).

Product Attributes

Brand: AKM (Asahi Kasei Microdevices Corporation)
Sensor Type: Hall Sensor
Package Type: AI-Shell, Small-sized, Halogen-free
Certifications: IEC/UL 62368-1, UL 508, CSA C22.2 No. 14 (IEC 62109 certification pending)
Material: Indium Arsenide (InAs) for Hall sensor, Tin (Sn) plating for terminals
Operation: Bidirectional, Electrical Isolation

Technical Specifications

Parameter	Symbol	Conditions	Min.	Typ.	Max.	Units	Notes
Maximum Primary Current (RMS)	IRMSmax		-50		50	A
Current Consumption	IDD	No loads		6.2	9.6	mA
Sensitivity	Vh			37.1	37.9	mV/A	See Figure 5
Offset Voltage	Vof	IIN = 0A	1.636	1.650	1.664	V	Note 1
Linear Sensing Range	INS		-35		35	A
Linearity Error			-1		1	%F.S.	Note 1, See Figure 5
Rise Response Time	tr	CL = 100pF		1		s	See Figure 8
Fall Response Time	tf	CL = 100pF		1		s	See Figure 8
Bandwidth	fT	-3dB, CL = 100pF			300	kHz
Output Noise	VNrms	100Hz to 4MHz		1.2		mVrms	Note 2
Temperature Drift of Sensitivity	Vh-dmax	Ta = 40 to 110C			0.4	%	See Figure 6
Temperature Drift of Offset Voltage	Vof-dmax	Ta = 40 to 110C, IIN = 0A			5.5	mV	See Figure 7
Ratiometric Error of Sensitivity	Vh-R	VDD = 2.97V to 3.63V	-1		1	%	Note 2
Ratiometric Error of Offset Voltage	Vof-R	VDD = 2.97V to 3.63V, IIN = 0A	-0.6		0.6	%F.S.	Note 2
Total Accuracy	ETO	Ta = 40 to 110C			1.3	%F.S.	Note 3
Primary Conductor Resistance	R1				100
Isolation Voltage	VINS	AC 50/60Hz, 60sec			3	kV	Note 2
Isolation Resistance	RINS	DC 1kV			500	M	Note 2
Clearance Distance	dCL	between the primary and the secondary			13.3	mm	Note 2
Creepage Distance	dCP	between the primary and the secondary			13.3	mm	Note 2
Supply Voltage	VDD	Recommended Operating Conditions	2.7	3.3	3.63	V
Analog Output Current	IOUT	Recommended Operating Conditions	-0.5		0.5	mA	VOUT pin
Output Load Capacitance	CL	Recommended Operating Conditions			100	pF	VOUT pin
Operating Ambient Temperature	Ta	Recommended Operating Conditions	-40		110	C	See Figure 4
Supply Voltage	VDD	Absolute Maximum Ratings	-0.3		6.5	V	VDD pin
Analog Output Current	IOUT	Absolute Maximum Ratings	-1		1	mA	VOUT pin
Storage Temperature	Tstg	Absolute Maximum Ratings	-40		150	C

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 Vh) / Vh| + |100 (Vof_meas Vof_meas_35) / (Vh |INS| 2)| + |meas| where Vh_meas[mV/A], Vof_meas[mV], meas[%F.S.] represent the measured value of sensitivity, offset voltage and linearity error respectively, Vh[mV/A] represent the typical value of sensitivity, and Vof_meas_35[mV] represent the measured value of offset voltage at Ta = 35C. In the case of CQ-2233, ETO is calculated by the equation as below. ETO = |100 (Vh_meas 37.5) / 37.5| + |100 (Vof_meas Vof_meas_35) / (37.5 35 2)| + |meas|

2411261450_AKM-CQ2233_C6156008.pdf

Accurate AC DC current sensor AKM CQ2233 with electrical isolation and fast response time in compact design Images

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