描述
CQ3301 Coreless Current Sensor
Galvanic Isolation Protection meets High-Speed Linearity – The Professional Open-Loop Current IC Choice for Compact Power Systems.
// High-Accuracy Small Footprint Galvanic Telemetry Core Portfolio
The Coreless Magnetic Sensing Advantage
The CQ3301 represents a premier flagship modular solution for space-constrained, high-efficiency electrical setups demanding absolute tracking linearity and high-voltage galvanic isolation. Engineered by AKM using an innovative coreless sensor architecture, this open-loop current IC eliminates magnetic hysteresis remnants completely. Housed in a low-profile surface-mount package layout, it secures pure, deterministic current logging curves and quick fault reporting for next-generation industrial electronics.
- Coreless structure blueprint completely avoiding magnetic core saturation traps
- Microsecond-level fast response execution supporting precision feedback loops
- Exceptional thermal stability ensuring consistent analog output across temperature variations
Key Performance Advantages
Galvanic Isolation Boundary
Integrates highly secure electric isolation barriers inside the package, safeguarding delicate logic MCUs from unexpected primary power line surges.
Microsecond Response Loop
Triggers high-speed signal response pathways instantly, supporting rapid interlock shutoff actions during short-circuit overcurrent faults.
Premium Linear Tracking
Maintains a clean ratiometric analog voltage output with minimal linear deviation errors, enabling fine-tuned energy budgeting audits.
Technical Specifications
| Parameter Node | Detailed Engineering Specification |
|---|---|
| Manufacturer | Asahi Kasei Microdevices (AKM) |
| Part Number (MPN) | CQ3301 |
| Product Category | High-Accuracy Coreless Open-Loop Current Sensors |
| Sensing Mechanism | Magnetic Hall Effect Open-Loop Current IC Architecture |
| Isolation Properties | Galvanic High-Voltage Isolation Protection Layer |
| Output Profile | Ratiometric Linear Analog Voltage Output Signal |
| Core Supply Voltage | Standard Single Supply Operation Node |
| Structural Trait | Coreless Mechanism Eliminating Magnetic Hysteresis Residuals |
| Package Outline | Surface-Mount Small Form-Factor Layout (Lead-Free/RoHS Compliant) |
| Temperature Window | Extended Performance Industrial Operation Bounds (-40°C to +110°C) |
Versatile Telemetry Applications
- Industrial Inverters: Real-time AC motor dynamic speed adjustments and continuous phase current monitoring loops.
- Solar Power Infrastructure: Tracks precise current values inside PV solar string inverters and energy storage converters.
- Switched-Mode Systems: Serves as a high-speed current monitoring sensor inside heavy industrial SMPS assemblies.
- Overload Fault Identification: Executes swift signal loops for automated smart power breaker distribution boards.
Industrial Quality Protections
100% Original Sourcing: Procured securely through fully audited tier-1 franchise lines, completely ensuring anti-counterfeit protection.
Anti-Static Handling: Stored and picked in full alignment with international ANSI/ESD cleanroom facility benchmarks.
Full Batch Traceability: Verified via intensive certificate analysis and rigorous documentation tracking prior to export dispatch.
HIGH-ACCURACY TELEMETRY SENSING SOLUTIONS // DIRECT SOURCE ARCHITECTURE


