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BNmagsensor
CQ121E/131E
紧开式精密电流传感器
cq121e_131e
The CQ-121E and 131E are open-loop type linear current sensors offered in ultra-compact package, compliant to IEC standard for insulation. The devices incorporate AKEMD’s low noise InAs-base Hall Element and high accuracy OP amplifier, simplifying the design of current sensing on an electrical board. The CQ-121E operates over at current range of +/-30A, while the CQ-131E operates over at the range of +/-60A. The CQ-121E/131E are offered with AKEMD's patented housing architecture in an 8x20x14 mm package which performs high noise tolerance of current sensing and enables the system to save extra component cost and the real estate required.


Features

Product Specifications
Unit
Sensing TypeOpen Loop
Based on the Hall Effect
 
Sensed Current TypeAC or DC 
Isolation Voltage
(within 60sec)
1500 Typ.V
Sensed Current RangeCQ-121ECQ-131E 
Sence Range± 30± 60 *1A
Linear Range± 25± 50 *1A
Sensitivity *2 Max7230 
Type63.527mV/A
Min5524 
Sensitivity Temp. Drift0.04 Max.%/℃
Offset Voltage
at no current
2.35 to 2.65V
Offset voltage
Temp. Drift
0.5 Max.mV/℃
Linearity Error1.0 Max.  %FS
Sensed Current Frequency
Response
100 Typ. at -3dBKHz
Response Time5.0 Max.µs
Supply Voltage3.0 to 5.5V
Supply Current9.0 Typ.mA
Operating Temperature-30 to 80
Storage Temperature-30 to 85
Dimension8.0(D) x 20.0(W) x 14(H)mm
    

*1: Specified for RMS of current. For DC current, +/-30 A Max is
      guaranteed.

*2: Screening models by ranging of current sensitivity are available.
      For details,contact AKEMD marketing office.



Architecture and Block Diagram

cq121e_131e_architecture



cq121e_131e_diagram



Applications

      Current sensing in home appliances features:

  1. Vector Control
  2. Current Monitoring
  3. Over Current Protection
  4. Current Feedback System
  5. Wattmeter


Dimension and Marking

cq121e_131e_dimention

Further Information


Data Sheet Download Datasheet
CQ-121/131E
October 2008


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