Product Overview
The CZ-3AG2 is an open-type current sensor utilizing Hall sensors to provide an analog voltage output proportional to AC/DC current. It features high accuracy and high-speed sensing due to its Group III-V semiconductor thin film Hall sensor. The coreless, ultra-small surface mount package contributes to space-saving. With a low primary conductor resistance, it suppresses heat generation, enabling a continuous current of 50Arms. The CZ-3AGx series incorporates a built-in stray magnetic field reduction function to mitigate accuracy degradation from disturbed magnetic fields and includes a dual overcurrent detection function. It is UL 61800-5-1 safety compliant, making it suitable for industrial AC drives, servo motors, and for interfacing with 3V AD converters. The CZ-3AGx series offers a range of linear sensing capabilities, from 11.6A to 116.6A, allowing for consistent board design across different current ratings.
Product Attributes
- Brand: Asahi Kasei Microdevices (AKM)
- Safety Standard Compliance: UL 61800-5-1, UL-1577, IEC/UL 60950-1
- Package Type: Coreless ultra-small surface mount
- Hall Sensor Technology: Group III-V semiconductor thin film
- Output Type: Analog voltage
- Primary Conductor Resistance: Low
- Stray Magnetic Field Reduction: Built-in function
- Overcurrent Detection: Dual function, adjustable thresholds
- Lead Material: Sn-Bi plating
- Flammability Standard: V0 (UL94)
- Comparative Tracking Index (CTI): 600V
- Material Group:
Technical Specifications
| Parameter | Symbol | Min. | Typ. | Max. | Units | Notes |
|---|---|---|---|---|---|---|
| Product Model | CZ-3AG2 | - | - | - | - | - |
| General Description | - | Open-type current sensor using Hall sensors, outputs analog voltage proportional to AC/DC current. | ||||
| Maximum Primary Current (Continuous) | - | - | - | 50 | Arms | - |
| High-accuracy | - | - | 0.4% F.S. | - | %F.S. | (Ta=35~85C Typ.) |
| Primary Conductor Resistance | RP | - | 0.27 | - | m | - |
| Package Size | - | - | 12.7mm 10.9mm 2.25mm | - | mm | (Surface mount) |
| Isolation Voltage | VINS | - | 3.0kVrms | - | kVrms | (AC50Hz, 60s) |
| Supply Voltage | VDD | 4.5 | 5.0 | 5.5 | V | - |
| Sensitivity | Vh | - | 100 mV/A | - | mV/A | (IIN=10A, Note 1) |
| Zero-Current Output Voltage | Vof | - | 1.49 - 1.51 | - | V | (IIN0A, Note 1) |
| Linear Sensing Range | INS | -14 | - | 14 | A | - |
| Output Saturation Voltage High | VsatH | - | - | 2.9 | V | (IOUT=2mA) |
| Output Saturation Voltage Low | VsatL | 0.1 | - | - | V | (IOUT=2mA) |
| Linearity Error | -0.6 | - | 0.6 | %F.S. | (IOUT=2mA, Note 1) | |
| Output Clamp Voltage | Vclamp | 3.0 | 3.25 | 3.45 | V | (IOUT=2mA) |
| Power Supply Rejection Ratio | Psrr | 45 | - | - | dB | (DC to 100kHz) |
| Rise Response Time | tr | - | 3.6 | - | s | (CLVOUT=1000pF, Note 3) |
| Fall Response Time | tf | - | 3.6 | - | s | (CLVOUT=1000pF, Note 3) |
| Input Current Equivalent Noise | INrms | - | 20 | - | mArms | (100Hz~120kHz) |
| Power-on Time | ton | - | 2 | - | ms | (VDD 5V to VOUT within 10%) |
| Stray Magnetic Field Reduction | Ebc | -10 | 0.01 | 10 | A/mT | (Equivalent to Zero-Current output drift) |
| dV/dt Settling Time | tdVdt | - | 4 | - | s | (200V/s, Note 2, 5) |
| Overcurrent Detection Threshold 1 Adjustable Range | |IOCDTH1| | 7.0 | - | 17.5 | A | (Note 7) |
| Overcurrent Detection Response Time 1 | tRSOCD1 | - | 5.5 | 6.7 | s | (ROCD=1k, CLOCD=1000pF, Note 3) |
| Overcurrent Detection Threshold 2 Adjustable Range | |IOCDTH2| | 17.5 | - | 35 | A | (Note 7) |
| Overcurrent Detection Response Time 2 | tRSOCD2 | - | 2.5 | 3.7 | s | (ROCD=1k, CLOCD=1000pF, Note 3) |
| Temperature Drift of Sensitivity | Vh-d | - | 0.4 / 3.0 | 0.6 / 3.4 | % | (Ta=35~85C / -40~35C, Note 4, 8, 9) |
| Temperature Drift of Zero-current Output Voltage | Vof-d | - | 1.2 / 8.6 | 2.8 / 11.0 | mV | (Ta=35~85C / -40~85C, Note 4, 8, 9) |
| Total Accuracy | Etotal | - | 0.2 / 1.9 | 0.4 / 2.1 | %F.S. | (Ta=35~85C / -40~85C, Note 4, 8) |
| Creepage Distance | Cr | 8.0 | - | - | mm | - |
| Clearance Distance | Cl | 8.0 | - | - | mm | - |
Applications
- AC drives
- DC motors
- UPS
- General Inverters
- Power conditioners
- Applications requiring isolation with small size and suppressed heat generation.
2411272110_AKM-CZ3AG2_C1857729.pdf
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