CZ-3A02 Sensor Datasheet

CZ-3A02 Datasheet, PDF, Equivalent


Part Number

CZ-3A02

Description

3.3V Output Accurate Coreless Current Sensor

Manufacture

AKM

Total Page 21 Pages
Datasheet
Download CZ-3A02 Datasheet


CZ-3A02
[CZ-3A02]
Clearance/Creepage 8mm
CZ-3A02
3.3V Output Accurate Coreless Current Sensor
1. General Description
CZ-3A02 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 CZ-3A0x series has a built-in
stray magnetic field reduction function to suppress this effect. The CZ-3A0x series also has dual
overcurrent detection function. The CZ-3A0x series is UL 61800-5-1 safety compliant, which is an
excellent fit for industrial AC drives, servo motors, etc. The CZ-3A0x series is also an excellent fit to input
the sensor signal into a 3.3V AD converter. The CZ-3A0x series has a large variety of linear
measurement ranges, from ±12.9A (CZ-3A01), to ±129.1A, (CZ-3A07). This enables designers to use
the same board design across different current rating products.
2. Features
Compliant with safety standard of UL61800-5-1 (Clearance, Creepage distance 8.0mm)
Certified with safety standards of UL-1577 and IEC/UL60950-1
3.3V Output
Maximum Primary Current : 50Arms
High-accuracy : 0.4%F.S.(Ta=3585°C Typ.)
Quite small primary conductor resistance : 0.27mΩ Typ.
Stray magnetic field reduction function
Small-sized surface mount package12.7mm×10.9mm×2.25mm
Dual overcurrent detection function (Adjustable overcurrent detection thresholds)
Isolation Voltage3.0kVrmsAC50Hz60s
Non-ratiometric output
018010543-E-00
-1-
2018/12

CZ-3A02
[CZ-3A02]
AC drives
3. Applications
DC motors
UPS
General Inverters
Power conditioners
Also, CZ-3A02 is suitable for other applications which are required isolation with small size and
suppressing heat generation.
4. Table of Contents
1. General Description......................................................................................................................... 1
2. Features........................................................................................................................................... 1
3. Applications ..................................................................................................................................... 2
4. Table of Contents............................................................................................................................. 2
5. Block Diagram and Functions ......................................................................................................... 3
6. Pin Configurations and Functions ................................................................................................... 4
7. Absolute Maximum Ratings............................................................................................................. 5
8. Recommended Operating Conditions............................................................................................. 5
9. Electrical Characteristics ................................................................................................................. 6
10. Characteristic Definitions................................................................................................................. 9
11. External Circuits Example ............................................................................................................. 14
12. Board Layout for Measuring Thermal Resistance......................................................................... 15
13. Package......................................................................................................................................... 16
14. Reliability Tests.............................................................................................................................. 19
15. Precautions.................................................................................................................................... 20
IMPORTANT NOTICE ................................................................................................................... 21
018010543-E-00
-2-
2018/12


Features [CZ-3A02] Clearance/Creepage 8mm CZ-3A 02 3.3V Output Accurate Coreless Curre nt Sensor 1. General Description CZ-3A 02 is an open-type current sensor using Hall sensors, which outputs the analog voltage proportional to the AC/DC curr ent. Group III-V semiconductor thin fil m is used as the Hall sensor, which ena bles the high-accuracy and high-speed c urrent sensing. Coreless ultra-small su rface mount package realizes the space- saving. Also, the low primary conductor resistance suppresses heat generation to achieve the 50Arms continuous curren t. Existing coreless current sensors ha ve an accuracy disadvantage from degrad ations caused by a disturbed magnetic f ield. The CZ-3A0x series has a built-in stray magnetic field reduction functio n to suppress this effect. The CZ-3A0x series also has dual overcurrent detect ion function. The CZ-3A0x series is UL 61800-5-1 safety compliant, which is an excellent fit for industrial AC drives , servo motors, etc. The CZ-3A0x series is also an excellent fi.
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