Product Overview
The Allegro CT416 is a high-bandwidth, ultra-low noise integrated contact current sensor utilizing XtremeSense TMR technology for high-accuracy current measurements. It supports eight current ranges up to 65 A, providing a linear analog output voltage with a total output error of 1.0% full-scale. Featuring a ~300 ns output response time, low current consumption of 6.0 mA, and immunity to common-mode fields, the CT416 includes a filter function to reduce output noise. It is offered in an industry-standard, green, RoHS-compliant 8-lead SOIC package and is suitable for industrial, consumer, and automotive applications including solar/power inverters, UPS, SMPS, telecom power supplies, motor control, power utility meters, and overcurrent fault protection.
Product Attributes
- Brand: Allegro MicroSystems
- Technology: XtremeSense TMR
- Package: 8-lead SOIC
- Certifications: UL/IEC 62368-1, UL1577, AEC-Q100 Grade 1
- Compliance: Green, RoHS compliant
Technical Specifications
| Feature | Specification | Details |
|---|---|---|
| Product Name | CT416 | XtremeSense TMR Current Sensor |
| Current Carrying Conductor (CCC) Max Current | Up to 65 A | |
| Total Output Error | 1.0% Full-Scale (FS) | |
| Output Response Time | ~300 ns | |
| Current Consumption | ~6.0 mA | |
| Bandwidth | 1 MHz | |
| Common-Mode Field Rejection | -40 dB | |
| Supply Voltage | 3.0 to 3.6 V | Recommended: 3.3 V |
| Isolation Ratings | 2.5 kVRMS (Rated Isolation Voltage) | Basic Isolation: 560 VRMS Reinforced Isolation: 280 VRMS |
| Operating Temperature Range | -40C to 125C | |
| Package Dimensions | 8-lead SOIC | 4.89 mm 6.00 mm 1.62 mm |
| Noise Density (100 kHz BW) | 9.5 to 19.0 mARMS | |
| Power-On Time | 100 s | |
| Rise Time | 200 ns | |
| Propagation Delay | 250 ns | |
| Undervoltage Lockout (UVLO) | 2.45 V (Falling), 2.50 V (Rising) | |
| Primary Conductor Resistance | 1 m (Typ.) | |
| Current Ranges (Examples) | 0 to 20 A, 20 A, 0 to 30 A, 30 A, 0 to 50 A, 50 A, 0 to 65 A, 65 A | See Selection Guide for specific part numbers and sensitivities |
| Sensitivity (Examples) | 100 mV/A (for 20A DR) | 15.4 mV/A (for 65A MR) |
| Total Output Error (Max) | 3.0% FS | Across supply voltage and temperature |
| Linearity Error (Max) | 0.1% to 0.4% FS | Varies by current range |
| Offset Voltage Error (Typ.) | 4 mV to 6 mV | At 25C, varies by current range |
| Lifetime Drift Total Error (Max) | 2.3% to 3.6% FS | Varies by current range |
2504101957_ALLEGRO-CT416-HSN865MR_C28768391.pdf
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