Product Overview
The CT110 is a high-linearity, high-resolution contact current sensor featuring isolation and a FLAG output, powered by Allegro's patented XtremeSense TMR technology. It accurately measures AC and DC current up to 15.0 A via an integrated current-carrying conductor (CCC) and outputs a ratiometric analog voltage. With a typical total output error of less than 0.5% and the ability to sense currents as low as 5 mA, it offers unmatched resolution. The device supports a wide operating voltage range of 2.7 V to 5.5 V, making it an ideal, space-saving replacement for shunt resistors and isolation amplifiers. Its compact 3.00 mm x 3.00 mm x 0.95 mm, 6-lead DFN package, along with a sampling frequency of 200 kHz and minimal current consumption, makes it suitable for various applications including smart plugs, IoT devices, LED lighting, power tools, appliances, drones, battery charger systems, PCs, and servers.
Product Attributes
- Brand: Allegro MicroSystems
- Technology: XtremeSense TMR
- Isolation Rating: 2 kV per IEC 62368-1
- Package Type: 6-lead DFN
- Certifications: RoHS compliant
Technical Specifications
| Feature/Model | Specification | Details |
|---|---|---|
| Product Name | CT110 | |
| Current Range (Max) | 5.0 A | CT110FDC-ID6, CT110FDC-HD6, CT110FDV-ID6, CT110FDV-HD6 |
| 10.0 A | CT110PDC-ID6, CT110PDC-HD6, CT110PDV-ID6, CT110PDV-HD6 | |
| 15.0 A | CT110RDC-ID6, CT110RDC-HD6, CT110RDV-ID6, CT110RDV-HD6 | |
| Resolution | 5 mA | |
| Typical Total Output Error | < 0.5% FS | |
| Sampling Frequency | 200 kHz | |
| Supply Current (Typical) | ~1.2 mA | |
| FLAG Output | Active low, indicates current above 90% or below 10% of full range | |
| Supply Voltage | 2.7 V to 5.5 V | |
| Operating Temperature | Industrial | 40C to 85C |
| Extended Industrial | 40C to 125C | |
| Package Dimensions | 3.00 mm 3.00 mm 0.95 mm | |
| CCC Resistance | 0.9 m (Typical) | |
| Analog Output Range | 5.0% to 95.0% of VDD | |
| Rise Time (tRISE) | 15.5 s (Typical) | |
| Propagation Delay (tDELAY) | 4.6 s (Typical) | |
| Response Time (tRESP) | 20.0 s (Typical) | |
| Power-On Time (tON) | 50 s (Typical) | |
| Undervoltage Lockout (UVLO) | Rising: 2.3 V (Typical), Falling: 2.0 V (Typical) | |
| Input Referred Noise Density | 250 ARMS / Hz (Typical) | |
| Evaluation Board | EVB111-5.0A | 5.0 A, 3.0% FS, 40C to 125C |
| EVB111-10A | 10.0 A, 3.0% FS, 40C to 125C | |
| EVB111-15A | 15.0 A, 3.0% FS, 40C to 125C | |
2408081042_ALLEGRO-CT110FDV-ID6_C22460717.pdf
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