Product Overview
The CQ-209A is an open-type current sensor utilizing a quantum well ultra-thin film InAs Hall sensor for high-accuracy and high-speed AC/DC current sensing. Its integrated AI-Shell package, containing the Hall sensor, magnetic core, and primary conductor, offers a space-saving and highly reliable solution. The sensor provides an analog voltage output proportional to the measured current, featuring electrical isolation between the primary conductor and the sensor signal, 5V single supply operation, and ratiometric output. It is designed for low variation and low temperature drift in sensitivity and offset voltage, with low noise output and a fast response time, all within a small-sized surface mount package that is halogen-free.
Product Attributes
- Brand: Asahi Kasei Microdevices (AKM)
- Sensor Type: Hall sensor
- Package Type: AI-Shell, Small-sized surface mount
- Material: Quantum well ultra-thin film InAs (Indium Arsenide) for Hall sensor; Tin (100%) plating for terminals
- Certifications: RoHS compliant, Halogen free
- Operation: Bidirectional
Technical Specifications
| Parameter | Symbol | Conditions | Min. | Typ. | Max. | Units | Notes |
|---|---|---|---|---|---|---|---|
| Model | CQ-209A | MS1265-E-05 2013/06 | |||||
| Supply Voltage | VDD | 4.5 | 5.0 | 5.5 | V | Single supply operation | |
| Maximum Primary Current (RMS) | IRMSmax | Ta=40~90C | -20 | 20 | A | ||
| Current Consumption | IDD | No Loads | 9 | mA | |||
| Sensitivity | Vh | Ta=25C, VDD=5V | 64.7 | 66.0 | 67.3 | mV/A | * |
| Offset Voltage | Vof | IIN=0A, Ta=25C, VDD=5V | 2.408 | 2.500 | 2.592 | V | * |
| Linear Sensing Range | INS | -31.8 | 31.8 | A | |||
| Linearity Error | -1 | 1 | %F.S. | * | |||
| Rise Response Time | tr | IIN 90% VOUT 90%, CL=100pF | 1 | s | typ. | ||
| Fall Response Time | tf | IIN 10% VOUT 10%, CL=100pF | 1 | s | typ. | ||
| Bandwidth | fT | -3dB, CL=100pF | 400 | kHz | |||
| Output Noise | VNrms | 2.1 | mVrms | max. | |||
| Maximum Temperature Drift of Sensitivity | Vh-dmax | Ta=35~90C (variation ratio to Vh(Ta=35C)) | 1 | % | |||
| Maximum Temperature Drift of Sensitivity | Vh-dmax | Ta=40~35C (variation ratio to Vh(Ta=35C)) | 2 | % | |||
| Maximum Temperature Drift of Offset voltage | Vof-dmax | Ta=40~90C, IIN=0A (variation from Vof(Ta=35C)) | 22 | mV | |||
| Ratiometricity Error of Sensitivity | Vh-R | VDD=4.5V~5.5V | -1 | 1 | % | ** | |
| Ratiometricity Error of Offset Voltage | Vof-R | VDD=4.5V~5.5V, IIN=0A | -1 | 1 | % | ** | |
| Primary Conductor Resistance | R1 | 340 | |||||
| Isolation Voltage | VINS | AC 50/60Hz, 60s | 2.5 | kV | ** | ||
| Isolation Resistance | RINS | DC 1kV | 500 | M | ** | ||
| Operating Ambient Temperature | Ta | -40 | 90 | C | |||
| Storage Temperature | Tstg | -40 | 125 | C |
* These parameters can drift by the values described in Reliability Tests section over the lifetime of the product.
** These characteristics are guaranteed by design.
2411272252_AKM-CQ209A_C1574495.pdf
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