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 offers a linear analog output voltage, supporting eight current ranges up to 65 A with a total output error of approximately 1.0% full-scale. The device features a fast ~300 ns output response time, low current consumption, and immunity to common-mode fields. It is available in an industry-standard, green, and RoHS-compliant 8-lead SOIC package. The CT416 is suitable for various industrial, consumer, and automotive applications including solar/power inverters, UPS, SMPS, telecom power supplies, motor control, power utility meters, and overcurrent fault protection. Note: This device is classified as NOT FOR NEW DESIGN and is restricted to existing customer applications.
Product Attributes
- Brand: Allegro MicroSystems
- Technology: XtremeSense TMR
- Package Type: 8-lead SOIC
- Certifications: UL/IEC 62368-1, UL1577, AEC-Q100 Grade 1
- Compliance: Green, RoHS compliant
- Product Status: NOT FOR NEW DESIGN (Restricted to existing customer applications)
Technical Specifications
| Feature | Specification |
|---|---|
| Product Name | XtremeSense TMR Current Sensor CT416 |
| Current Carrying Conductor (CCC) Max Current | Up to 65 A |
| Total Output Error | ~1.0% FS (claimed in description), 3.0% FS (in performance tables) |
| Bandwidth | 1 MHz |
| Response Time | ~300 ns |
| Current Consumption | ~6.0 mA |
| Supply Voltage | 3.0 to 3.6 V |
| Common Mode Field Rejection Ratio | 40 dB |
| Package Dimensions (SOIC-8) | 4.89 mm 6.00 mm 1.62 mm |
| Operating Temperature Range | 40C to 125C |
| Isolation Voltage (Rated) | 2.5 kVRMS |
| Working Voltage (Basic Isolation) | 560 VRMS |
| Working Voltage (Reinforced Isolation) | 280 VRMS |
| Power-On Time | 100 s (typical) |
| Rise Time | 200 ns (typical) |
| Propagation Delay | 250 ns (typical) |
| Undervoltage Lockout (UVLO) | Rising: 2.50 V, Falling: 2.45 V |
| Noise (100 kHz BW) | 9.5 to 19.0 mARMS (depending on current range) |
| Primary Conductor Resistance | 1 m (typical) |
| Model - Current Range (Example) | CT416-HSN865MR: 65 A |
| Model - Sensitivity (Example) | CT416-HSN865MR: 15.4 mV/A |
| Model - Current Range (Example) | CT416-HSN820DR: 0 to 20 A |
| Model - Sensitivity (Example) | CT416-HSN820DR: 100 mV/A |
2504181641_ALLEGRO-CT416-HSN820DR_C29129392.pdf
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