March 2022
© 2022 Crocus Technology 1
CT430 · Rev. 1.94 (Product Under Qualification)
CT430
XtremeSense® TMR Ultra-Low Noise, <1% Total Error Current Sensor
Features
• Integrated Contact Current Sensing for Low to
Medium Current Ranges:
o 0 A to +20 A
o -20 A to +20 A
o 0 A to +30 A
o -30 A to +30 A
o 0 A to +50 A
o -50 A to +50 A
o 0 A to +65 A
o -65 A to +65 A
• 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 62387 Certification
o Rated Isolation Voltage: >5 kV
RMS
o Working Voltage for Basic Isolation: >1287 V
RMS
o Working Voltage for Reinforced Isolation: >647
V
RMS
• IEC 61000-4-5 Certification
• Low Noise: 9 mA
RMS
to 15 mA
RMS
@ f
BW
= 100 kHz
• Reference Voltage Output for AC/DC Current
Measurements
• VOUT – VREF < ±1.0% FS, -40°C to +125°C
• Immunity to Common Mode Fields: -54 dB
• Supply Voltage: 4.75 V to 5.50 V
• Over-Current Detection (OCD™)
o Out of Range Currents
• AEC-Q100 Grade 1 (Under Qualification)
• 16-Lead SOIC-Wide Package
Product Description
The CT430 is a high bandwidth and ultra-low noise
integrated contact 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 eight (8) current ranges where the integrated
current carrying conductor (CCC) will handle up to 65 A of
current and generates a current measurement as a linear
analog output voltage. It achieves a total output error of less
than ±1.0% full-scale (FS) over voltage and
the full
temperature range.
It has about a 300 ns output response time while the current
consumption is about 6.0 mA and is immune to common
mode fields. The CT430 has an integrated over-current
detection (OCD) circuitry to identify out of range currents
(OCD) with the result outputted to the fault-bar (FLT) pin
.
The FLT is an open drain, active LOW digital signal that is
activated by the CT430 to alert, for example a
microcontroller that a fault condition has occurred.
The CT430 is offered in an industry standard 16-lead SOIC-
Wide package that is “green” and RoHS compliant.
Applications
• Solar/Power Inverters
• UPS, SMPS and Telecom Power Supplies
• Battery Management Systems
• Motor Control
• White Goods
• Power Utility Meters
• Over-Current Fault Protection
CT430 www.crocus-technology.com
© 2022 Crocus Technology 2
CT430 · Rev. 1.94 (Product Under Qualification)
Part Ordering Information
Part Number
Auto
Grade
Operating
Temperature Range
Current
Range
Package
Packing
Method
CT430-ESWF20DR - -40°C to +85°C
0 A to +20 A
16-lead SOIC-Wide
10.21 x 10.31 x 2.54 mm
Tape & Reel
CT430-HSWF20DR -
-40°C to +125°C
CT430-ASWF20DR Grade 1
CT430-ESWF20MR - -40°C to +85°C
-20 A to +20 A
CT430-HSWF20MR -
-40°C to +125°C
CT430-ASWF20MR Grade 1
CT430-ESWF30DR - -40°C to +85°C
0 A to +30 A
CT430-HSWF30DR -
-40°C to +125°C
CT430-ASWF30DR Grade 1
CT430-ESWF30MR - -40°C to +85°C
-30 A to +30 A
CT430-HSWF30MR -
-40°C to +125°C
CT430-ASWF30MR Grade 1
CT430-ESWF50DR - -40°C to +85°C
0 A to +50 A
CT430-HSWF50DR -
-40°C to +125°C
CT430-ASWF50DR Grade 1
CT430-ESWF50MR - -40°C to +85°C
-50 A to +50 A
CT430-HSWF50MR -
-40°C to +125°C
CT430-ASWF50MR Grade 1
CT430-ESWF65DR - -40°C to +85°C
0 A to +65 A
CT430-HSWF65DR -
-40°C to +125°C
CT430-ASWF65DR Grade 1
CT430-ESWF65MR - -40°C to +85°C
-65 A to +65 A
CT430-HSWF65MR -
-40°C to +125°C
CT430-ASWF65MR Grade 1
Evaluation Board Ordering Information
Part Number Current Range
Operating Temperature
Range
CTD430-20DC 0 A to +20 A
-40°C to +125°C
CTD430-20AC -20 A to +20 A
CTD430-30DC 0 A to +30 A
CTD430-30AC -30 A to +30 A
CTD430-50DC 0 A to +50 A
CTD430-50AC -50 A to +50 A
CTD430-65DC 0 A to +65 A
CTD430-65AC -65 A to +65 A