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ZXCT1008FTA

High-Side Current Monitor

The ZXCT1008FTA is a high-side current monitor from Diodes Incorporated. View the full ZXCT1008FTA datasheet below including key specifications, pinout, electrical characteristics, absolute maximum ratings.

Manufacturer

Diodes Incorporated

Category

High-Side Current Monitor

Package

TO-236-3, SC-59, SOT-23-3

Lifecycle

Active

Key Specifications

ParameterValue
Accuracy±1%
Output Current25mA
FunctionCurrent Monitor
Mounting TypeSurface Mount
Operating Temperature-40°C ~ 85°C
Package / CaseTO-236-3, SC-59, SOT-23-3
PackagingMouseReel
Sensing MethodHigh-Side
Standard Pack Qty3000
Supplier Device PackageSOT-23-3
Supplier Device PackageSOT-23-3
Supplier Device PackageSOT-23-3
Input Voltage Range2.5V ~ 20V

Overview

Part: ZXCT1008 — Diodes Incorporated

Type: High-Side Current Sense Monitor

Description: High-side current sense monitor with a 2.5V to 20V supply range, up to 500mV sense voltage, 4μA quiescent current, and 1% typical accuracy.

Operating Conditions:

  • Supply voltage: 2.5–20 V
  • Operating temperature: -40 to +85 °C
  • Sense voltage range: 0 to 500 mV

Absolute Maximum Ratings:

  • Max voltage on any pin (relative to I OUT): 20 V
  • Max continuous output current: 25 mA
  • Max storage temperature: +125 °C

Key Specs:

  • VCC Range (V_IN): 2.5 V (min) to 20 V (max)
  • Output Current (I_OUT) at V_SENSE = 0V: 4 μA (typ)
  • Sense Voltage (V_SENSE): 0 mV (min) to 500 mV (max)
  • Accuracy (A_CC) at R_SENSE = 0.1Ω, V_SENSE = 200mV: -2.5% (min) to 2.5% (max)
  • Transconductance (G_M): 10,000 μA/V (typ)
  • Bandwidth (BW) at V_SENSE(DC) = 100mV: 2 MHz (typ)
  • V_SENSE - Input Current (I_SENSE-): 100 nA (max)

Features:

  • Low Cost, Accurate High-Side Current Sensing
  • Up to 500mV Sense Voltage
  • 2.5V to 20V Supply Range
  • 4μA Quiescent Current
  • 1% Typical Accuracy
  • SOT23
  • Totally Lead-Free & Fully RoHS Compliant
  • Halogen and Antimony Free. 'Green' Device

Applications:

  • Automotive Current Measurement
  • DC Motor and Solenoid Control
  • Over Current Monitor
  • Power Management

Package:

  • SOT23

Features

  • Low Cost, Accurate High-Side Current Sensing
  • -40 to +125 °C Temperature Range
  • Up to 500mV Sense Voltage
  • 2.5V to 20V Supply Range
  • 4μA Quiescent Current
  • 1% Typical Accuracy
  • SOT23
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. 'Green' Device (Note 3)
  • An Automotive-Compliant Part is Available Under Separate Data Sheet (ZXCT1008Q)

Applications

  • Automotive Current Measurement
  • DC Motor and Solenoid Control
  • Over Current Monitor
  • Power Management

Pin Configuration

ZXCT1008FTA Pinout

Package: TO-236-3 / SC-59 / SOT-23-3

Pin NumberPin NameTypeDescription
1I_OUTOOutput current (proportional to sensed current)
2V_SENSE+IPositive sense input (high-side current sense)
3V_SENSE-INegative sense input (low-side current sense)

Notes

  • This is a 3-pin current-sense amplifier in SOT-23 package.
  • Pin 1 (I_OUT) is the output; pins 2 and 3 are differential sense inputs.
  • The device measures current flowing between V_SENSE+ and V_SENSE- and outputs a proportional current on I_OUT.

Electrical Characteristics

SymbolParameterConditionsMinTypMaxUnit
V INV CC Range-2.5-20V
I OUTOutput Current (Note 5)V SENSE = 0V V SENSE = 10mV V SENSE = 100mV V SENSE = 200mV V SENSE = 500mV1 90 0.975 1.95 4.84 104 1.0 2.0 5.015 120 1.025 2.05 5.2μA μA mA mA mA
V SENSESense Voltage (Note 4)-0-500mV
I SENSE-V SENSE - Input Current---100nA
A CCAccuracyR SENSE = 0.1Ω, V SENSE = 200mV-2.5-2.5%
G MTransconductance, I OUT /V SENSE-10,000-μA/V
BWBandwidthV SENSE(DC) = 10mV, RF P IN = -40dBm (Note 6)-300-kHz
BWBandwidthV SENSE(DC) = 100mV, RF P IN = -20dBm (Note 6)2-MHz

Absolute Maximum Ratings

DescriptionRatingUnit
Voltage on Any Pin (relative to I OUT )-0.6 to 20V
Continous Output Current, I OUT25mA
Continuous Sense Voltage, V SENSE (Note 4)-0.5 to 5V
Operating Temperature, T A-40 to +85°C
Storage Temperature-55 to +125°C
Package Power Dissipation @TA = +25°C (Derate to Zero @+125°C)450mW

Operation above the absolute maximum rating may cause device failure. Operation at the absolute maximum ratings for extended periods may reduce device reliability.

Typical Application

  1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
  2. See http://www.diodes.com/quality/lead\_free.html for more information about Diodes Incorporated's definitions of Halogen- and Antimony-free, "Green" and lead-free.
  3. Halogen- and Antimony-free "Green' products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds.

Package Information

Related Variants

The following components are covered by the same datasheet.

Part NumberManufacturerPackage
ZXCT1008Diodes Incorporated
ZXCT1008QDiodes Incorporated
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