June 2022
© 2022 Crocus Technology 1
CT452 · Rev. 0.2 (Product Under Qualification)
CT452
XtremeSense® TMR Contactless Current Sensor with Common Mode
Field Rejection, 1 MHz Bandwidth and <1% Total Error over Full
Operating Temperature Range
Features
• Integrated Contactless Current/Field Sensing Ranges:
o 0 mT to +6 mT
o -6 mT to +6 mT
o 0 mT to +12 mT
o -12 mT to +12 mT
o 0 mT to +24 mT
o -24 mT to +24 mT
• Linear Analog Output Voltage
• Common Mode Field Rejection: -50 dB
• Total Error Output ≤ ±1.0%, -40°C to +125°C
• 1 MHz Bandwidth
• Response Time < 300 ns
• VOUT – VREF Error < 1.0% FS (Max.)
• High Signal-to-Noise Ratio (SNR): >65 dB
• Supply Voltage: 4.75 V to 5.50 V
• Filter Pin to Reduce Noise on Output
• AEC-Q100 Grade 1
• Package Options:
o 8-lead SOIC
o 8-lead TSSOP Package
Product Description
The CT452 is a high bandwidth and low noise integrated
zero-loss contactless current sensor
that uses Crocus
Technology’s patented XtremeSense TMR technology to
enable high accuracy current measurements for many
consumer, enterprise, and industrial applications. It
supports six (6) field ranges where the CT452 senses and
translates the magnetic field into a linear analog output
voltage. It achieves a total error output of less than ±1.0%
over voltage and temperature.
This coreless current sensor is not only small in size and
simple to design but it also provides effective common
mode rejection of more than -50 dB. This enables the
CT452 to have greater than 90
% immunity to stray
magnetic fields thus having almost no impact on the
accuracy of the current measurement.
It has less than 300 ns output response time while the
current consumption is about 6.0 mA. The CT452 is
equipped with a filter function to reduce the noise on the
output pin.
The CT452 is assembled in an industry standard 8-lead
SOIC package and a very low profile, 8-lead TSSOP
package that are both “green” and RoHS compliant.
Applications
• Solar/Power Inverters
• PFC Systems
• Battery Management Systems
• Smart Fuse Over-Current Detection
• Industrial Equipment
• Power Utility Meters
• Power Conditioner
• DC/DC Converters/Power Supplies
CT452 www.crocus-technology.com
© 2022 Crocus Technology 2
CT452 · Rev. 0.2 (Product Under Qualification)
Part Ordering Information
Part Number
Auto
Grade
Field Range
Operating
Temperature Range
Package
Packing
Method
CT452-H06DRSN08 -
0 mT to +6 mT
-40°C to +125°C
8-lead SOIC
4.89 x 6.00 x 1.62 mm
Tape & Reel
CT452-A06DRSN08 Grade 1
CT452-H06DRTS08 -
8-lead TSSOP
3.00 x 6.40 x 1.10 mm
CT452-A06DRTS08
Grade 1
CT452-H06MRSN08
-
-6 mT to +6 mT
8-lead SOIC
4.89 x 6.00 x 1.62 mm
CT452-A06MRSN08
Grade 1
CT452-H06MRTS08 -
8-lead TSSOP
3.00 x 6.40 x 1.10 mm
CT452-A06MRTS08 Grade 1
CT452-H12DRSN08 -
0 mT to +12 mT
8-lead SOIC
4.89 x 6.00 x 1.62 mm
CT452-A12DRSN08 Grade 1
CT452-H12DRTS08 -
8-lead TSSOP
3.00 x 6.40 x 1.10 mm
CT452-A12DRTS08 Grade 1
CT452-H12MRSN08 -
-12 mT to +12 mT
8-lead SOIC
4.89 x 6.00 x 1.62 mm
CT452-A12MRSN08 Grade 1
CT452-H12MRTS08 -
8-lead TSSOP
3.00 x 6.40 x 1.10 mm
CT452-A12MRTS08 Grade 1
CT452-H24DRSN08 -
0 mT to +24 mT
8-lead SOIC
4.89 x 6.00 x 1.62 mm
CT452-A24DRSN08 Grade 1
CT452-H24DRTS08 -
8-lead TSSOP
3.00 x 6.40 x 1.10 mm
CT452-A24DRTS08 Grade 1
CT452-H24MRSN08 -
-24 mT to +24 mT
8-lead SOIC
4.89 x 6.00 x 1.62 mm
CT452-A24MRSN08 Grade 1
CT452-H24MRTS08
-
8-lead TSSOP
3.00 x 6.40 x 1.10 mm
CT452-A24MRTS08
Grade 1