Allegro MicroSystems CT433
The CT433 is a high bandwidth and ultra-low noise integrated contact current sensor that uses Allegro patented XtremeSense™ TMR technology to enable high accuracy current measurements for many industrial, consumer and automotive applications. The device supports multiple current ranges where the integrated current carrying conductor (CCC) will handle up to 70 A of current and generates a current measurement as a linear analog output voltage. The device achieves a total output error of less than ±1.0% full-scale (FS) over voltage and the full temperature range.| Part No. | CT433 |
|---|---|
| Datasheet | CT433 Download |
| Manufacturer |  Allegro MicroSystems |
| Description | TMR Current Sensor |
| Buy | Stock & Price |
FEATURES AND BENEFITS
● Integrated contact current sensing for low to medium current ranges: □ 0 to 20 A □ ±20 A □ 0 to 30 A □ ±30 A □ ±40 A □ 0 to 50 A □ ±50 A □ 0 to 65 A □ ±65 A □ ±70 A● Optimized for high dV/dt applications
● Integrated current carrying conductor (CCC)
● Linear analog output voltage
● Total error output ≤ ±1.0% FS, –40°C to 125°C
● 1 MHz bandwidth
● Response time: ~300 ns
● UL/IEC 62368-1 and UL1577 certification □ Rated isolation voltage: 5 kVRMS □ Working voltage for basic isolation: 1100 VRMS □ Working voltage for reinforced isolation: 550 VRMS
● Low noise: 9.5 to 19.0 mARMS @ fBW = 100 kHz
● Immunity to common mode fields: –54 dB
● Supply voltage: 3.0 to 3.6 V
● AEC-Q100 grade 1
● 16-lead SOICW package
DESCRIPTION
The device has a ~300 ns output response time while the current consumption is ~6.0 mA and is immune to common mode fields. The CT433 is optimized for high dV/dt applications which minimizes capacitive coupling to VOUT, allowing the CT433 to be used in switching applications.
