© 2022 Crocus Technology
CT452 · Rev. 0.93
1
CT452
XtremeSense® TMR Coreless, Differential and Contactless Current
Sensor with Programmable Gain
FEATURES
• User Programmable Field Range:
o 6 mT to 24mT
• Pre-set Magnetic Field Ranges:
o 0 mT to +6 mT
o -6 mT to +6 mT
• Linear Analog Output Voltage
• Common Mode Field Rejection: -50 dB
• 1 MHz Bandwidth
• Response Time < 300 ns
• Reference Voltage Output for Unipolar/Bipolar Field
Measurements
• Supply Voltage: 4.75 V to 5.50 V
• Low Noise Performance
• Filter Pin to Reduce Noise on Output
• AEC-Q100 Grade 1
• Package Options:
o 8-lead SOIC
o 8-lead TSSOP
APPLICATIONS
• Solar/Power Inverters
• Battery Management Systems
• Industrial Equipment
• PFC Systems
• Power Utility Meters
• Power Conditioner
• DC/DC Converters/Power Supplies
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.
PACKAGE: 8-lead SOIC and 8-lead TSSOP
(Not to Scale)
CT452
XtremeSense® TMR Coreless, Differential and
Contactless Current Sensor with Programmable Gain
© 2022 Crocus Technology
CT452 · Rev. 0.3
2
Part Ordering Information
Part Number
Auto
Grade
Range
Operating
Temperature Range
Package
Packing
Method
Bipolar Sensitivity
CT452-H06MRTS08
-
±6 mT
-40°C to +125°C
8-lead TSSOP
3.00 x 6.40 x 1.10 mm
Tape &
Reel
CT452-H06MRSN08
-
±6 mT
-40°C to +125°C
8-lead SOIC
4.89 x 6.00 x 1.62 mm
Tape &
Reel
Unipolar Sensitivity
CT452-H06DRTS08
-
6 mT
-40°C to +125°C
8-lead TSSOP
3.00 x 6.40 x 1.10 mm
Tape &
Reel
CT452-H06DRSN08
-
6 mT
-40°C to +125°C
8-lead SOIC
4.89 x 6.00 x 1.62 mm
Tape &
Reel
Programmable Sensitivity
CT452-H00MRSN08
-
±6mT to ±24mT
-40°C to +125°C
8-lead SOIC
4.89 x 6.00 x 1.62 mm
Tape &
Reel
CT452-H00DRSN08
6mT to 24mT
CT452-H00MRTS08
±6mT to ±24mT
8-lead TSSOP
3.00 x 6.40 x 1.10 mm
CT452-H00DRTS08
6mT to 24mT
Programmable Sensitivity – AEC-Q100
CT452-A00MRSN08
Grade 1
±6mT to ±24mT
-40°C to +125°C
8-lead SOIC
4.89 x 6.00 x 1.62 mm
Tape &
Reel
CT452-A00DRSN08
6mT to 24mT
CT452-A00MRTS08
±6mT to ±24mT
8-lead TSSOP
3.00 x 6.40 x 1.10 mm
CT452-A00DRTS08
6mT to 24mT
Evaluation Board Ordering Information
Part Number
Magnetic Field
Range
Operating
Temperature Range
Package
Current Carrying
Conductor
CTD452-BB-06U
0 mT to +6 mT
-40°C to +125°C
8-lead SOIC
4.89 x 6.00 x 1.62 mm
Bus Bar
CTD452-BB-06B
-6 mT to +6 mT
CTD452-PT-06U
0 mT to +6 mT
PCB Trace
CTD452-PT-06B
-6 mT to +6 mT