ALLEGRO CT110RDV ID6 TMR contact current sensor suitable for IoT LED lighting and power tool designs
Product Overview
The CT110 is a high-linearity, high-resolution TMR (Tunneling Magnetoresistance) contact current sensor featuring isolation and a FLAG output. Leveraging patented XtremeSense TMR technology, it accurately measures AC and DC current from 5 mA up to 15.0 A with a typical total output error of less than 0.5%. Its ratiometric analog output voltage simplifies design and offers superior performance compared to traditional shunt resistor and isolation amplifier solutions. The CT110 is suitable for a wide range of applications, including smart plugs, IoT devices, LED lighting, power tools, appliances, drones, battery chargers, PCs, and servers. Its compact 3.00 mm 3.00 mm 0.95 mm DFN package and low power consumption make it an ideal choice for space-constrained designs.
Product Attributes
- Brand: Allegro MicroSystems
- Technology: XtremeSense TMR
- Isolation: 2 kV per IEC 62368-1
- Package Type: 6-lead DFN
Technical Specifications
| Feature | Specification |
|---|---|
| Current Range | 5.0 A, 10.0 A, 15.0 A |
| Resolution | 5 mA |
| Typical Total Output Error | < 0.5% |
| Sampling Frequency | 200 kHz |
| Supply Current (Typical) | ~1.2 mA |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Operating Temperature (Industrial) | 40C to 85C |
| Operating Temperature (Extended Industrial) | 40C to 125C |
| Package Dimensions | 3.00 mm 3.00 mm 0.95 mm |
| FLAG Output | Active low, indicates current above 90% or below 10% of full field range |
| Rise Time (tRISE) | 15.5 s |
| Propagation Delay (tDELAY) | 4.6 s |
| Response Time (tRESP) | 20.0 s |
| Power-On Time (tON) | 50 s |
| Undervoltage Lockout (UVLO) Rising | 2.3 V (Typ.) |
| Undervoltage Lockout (UVLO) Falling | 2.0 V (Typ.) |
| Resistance of CCC (DFN Package) | 0.9 m (Typ.) |
| Input Referred Noise Density (10 Hz BW) | 250 ARMS / Hz |
| Input Referred Noise (1 Hz to 30 kHz BW) | 8 to 10 mARMS |
| Model Specifics: | |
| CT110FDV-ID6 / -HD6 | 5.0 A range, Industrial / Extended Industrial temp. |
| CT110PDV-ID6 / -HD6 | 10.0 A range, Industrial / Extended Industrial temp. |
| CT110RDV-ID6 / -HD6 | 15.0 A range, Industrial / Extended Industrial temp. |
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