Current sensor AKM CZ3AG7 featuring dual overcurrent detection and low heat generation for continuous
Product Overview
The CZ-3AG7 is an open-type current sensor utilizing Hall effect technology to provide an analog voltage output proportional to AC/DC current. Engineered with a Group III-V semiconductor thin film Hall sensor, it delivers high accuracy and high-speed current sensing. Its coreless, ultra-small surface mount package ensures space-saving integration, while the low primary conductor resistance minimizes heat generation, enabling a continuous current rating of 50Arms. The CZ-3AGx series features a built-in stray magnetic field reduction function to mitigate accuracy degradation from disturbed magnetic fields and includes a dual overcurrent detection function. Compliant with UL 61800-5-1 safety standards, it is ideal for industrial AC drives, servo motors, and applications requiring input into a 3V AD converter. The series offers a range of linear sensing capabilities, from 11.6A to 116.6A, facilitating consistent board design across different current ratings.
Product Attributes
- Brand: Asahi Kasei Microdevices Corporation (AKM)
- Safety Standards Compliance: UL 61800-5-1, UL-1577, IEC/UL 62368-1
- Material: Group III-V semiconductor thin film (Hall sensor)
- Package Type: Small-sized surface mount package
- Lead Finish: Sn-Bi
- Flammability Standard: V0 (UL94)
- Comparative Tracking Index (CTI): 400V
- Material Group: II
Technical Specifications
| Parameter | Symbol | Conditions | Min. | Typ. | Max. | Units | Notes |
|---|---|---|---|---|---|---|---|
| Product Model | CZ-3AG7 | ||||||
| Linear Sensing Range | INS | -116.6 | 116.6 | A | |||
| Maximum Primary Current (Continuous) | IRMSmax | 50 | Arms | ||||
| Primary Conductor Resistance | RP | 0.27 | m | ||||
| High-Accuracy (Total Accuracy) | Etotal | Ta=35~85C | 0.3 | 0.6 | %F.S. | ||
| Isolation Voltage | VINS | AC50Hz, 60s | 3.0 | kVrms | |||
| Creepage Distance | Cr | 8.0 | mm | ||||
| Clearance Distance | Cl | 8.0 | mm | ||||
| Package Dimensions | 12.7mm 10.9mm 2.25mm | ||||||
| Supply Voltage | VDD | Recommended Operating Conditions | 4.5 | 5.0 | 5.5 | V | |
| Output Type | 3V Output | ||||||
| Stray Magnetic Field Reduction Function | Ebc | -10mT | 0.01 | A/mT | Equivalent to Zero-Current output drift | ||
| Dual Overcurrent Detection Function | Adjustable thresholds | ||||||
| Overcurrent Detection Threshold 1 Adjustable Range | |IOCDTH1| | 58.4 | 145.8 | A | |||
| Overcurrent Detection Threshold 2 Adjustable Range | |IOCDTH2| | 145.9 | 291.6 | A | |||
| Rise Response Time | tr | CLVOUT=1000pF | 3.6 | s | |||
| Fall Response Time | tf | CLVOUT=1000pF | 3.6 | s |
Applications
- AC drives
- DC motors
- UPS
- General Inverters
- Power conditioners
- Other applications requiring isolation with small size and suppressing heat generation.
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