CZ3A01

MP

High accuracy 3.3V coreless current sensor with more than 8mm of creepage / clearance distance

High accuracy 3.3V coreless current sensor with more than 8mm of creepage / clearance distance

MP

Description

CZ3A01 is an open-type current sensor using Hall sensors, which outputs the analog voltage proportional to the AC / DC current. Group III-V semiconductor thin film is used as the Hall sensor, which enables the high-accuracy and high-speed current sensing. Coreless ultra-small surface mount package realizes the space-saving. Also, the low primary conductor resistance suppresses heat generation to achieve the 50Arms continuous current. Existing coreless current sensors have an accuracy disadvantage from degradations caused by a disturbed magnetic field. The CZ3A0x series has a built-in stray magnetic field reduction function to suppress this effect. The CZ3A0x series also has dual overcurrent detection function. The CZ3A0x series is UL 61800-5-1 safety compliant, which is an excellent fit for industrial AC drives, servo motors, etc.
The CZ3A0x series is also an excellent fit to input the sensor signal into a 3.3V A / D converter. The CZ3A0x series has a large variety of linear measurement ranges, from ±12.9A (CZ3A01), to ±129.1A, (CZ3A07). 
This enables designers to use the same board design across different current rating products.

Key Features

  • High accuracy and high speed.
    The built-in high-sensitivity Hall element makes it possible to detect both DC and AC with high accuracy and high speed.
  • 50Arms continuous energizing possible.
    By reducing the resistance value of the primary conductor, heat generation can be suppressed, and continuous conduction of 50Arms is possible.
  • Built-in disturbance magnetic field fluctuation suppression function.
    The conventional coreless current sensor has the problem that the detection accuracy deteriorates due to the influence of the disturbance magnetic field, but the detection accuracy is improved by incorporating the disturbance magnetic field fluctuation suppression function.

Applications

  •                                 General-purpose inverter, AC servo motor, etc.
                                

Specifications

Part Number
CZ3A01
Package Type (Mounting style)
SMD
Maximum Effective Current [Arms]
50
Linear Sensing Range (MIN.) [A]
-12.9
Linear Sensing Range (MAX.) [A]
12.9
Sensitivity [mV/A]
120
Response Time [μsec]
1
Power Supply Voltage (MIN.) [V]
3.0
Power Supply Voltage (TYP.) [V]
3.3
Power Supply Voltage (MAX.) [V]
3.6
Other

                                
Operating Temperature [℃]
-40 to 85
Device Package
SOP
Number of Pins
10

Product Information

Part Status
MP
Pb Free
Yes
Halogen Free
Yes
MSL
MSL2a
Packaging
TAPE
JEDEC Standard Packaging
Compliant
Minimum Order Quantity [pcs.]
1000
Replacement P/N

                                

Block Diagram

Block Diagram