CT418 datasheet(1/34 Pages) ALLEGRO

tên linh kiện	CT418

Giải thích chi tiết về linh kiện	XtremeSense™ TMR Current Sensor with Ultra-Low Noise and <1% Total Error

PDF	34 Pages

Scroll/Zoom	100%

nhà sản xuất	ALLEGRO [Allegro MicroSystems]

Trang chủ	http://www.allegromicro.com

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The CT418 is a high bandwidth and ultra-low noise integrated

contact current sensor that usesAllegro patented XtremeSense™

TMR technology to enable high accuracy current measurements

for many consumer, enterprise, and industrial applications.

The device supports eight 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. The device achieves a total output error of less

than ±1.0% full-scale (FS).

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 CT418 has an integrated overcurrent detection

(OCD) circuitry to identify out of range currents (OCD) with

the result output to the fault-bar (FLT) pin. The FLT is an open

drain, active low digital signal that is activated by the CT418

to alert the microcontroller that a fault condition has occurred.

The CT418 is offered in an industry-standard 8-lead SOIC

package that is green and RoHS compliant.

CT418-DS, Rev. 3

MCO-0001521

• Integrated contact current sensing for low to medium

current ranges:

XtremeSense™ TMR Current Sensor

with Ultra-Low Noise and <1% Total Error

PACKAGE:

Not to scale

CT418

FEATURES AND BENEFITS

DESCRIPTION

December 15, 2023

• Solar/power inverters

• UPS, SMPS, and telecom

power supplies

• Motor control

• Power utility meter

• Overcurrent fault protection

APPLICATIONS

• Integrated current carrying conductor (CCC)

• Linear analog output voltage

• Total error output ≤ ±1.0% FS

• 1 MHz bandwidth

• Response time: ~300 ns

• UL/IEC 62368-1 and UL1577 certification

□ Rated isolation voltage: 2.5 kVRMS

□ Working voltage for basic isolation: 701 VRMS

□ Working voltage for reinforced isolation: 344 VRMS

• IEC 61000-4-5 certified

• Low noise: 9.0 to 13.5 mARMS @ fBW = 100 kHz

• Supply voltage: 4.75 to 5.50 V

• Filter function to reduce noise on output pin

• Immunity to common mode fields: –54 dB

• Overcurrent detection (OCD)

□ Out of range currents

• AEC-Q100 grade 1

• 8-lead SOIC package

□ 0 to 20 A

□ ±20 A

□ 0 to 30 A

□ ±30 A

□ 0 to 50 A

□ ±50 A

□ 0 to 65 A

□ ±65 A

Figure 1: CT418 Functional Block Diagram for 8-lead SOIC Package

8-lead SOIC

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