电子元器件ZXCT1030中文资料 - 数据手册 - IC数据表

ZXCT1030

High-side current monitor with comparator

Description

The ZXCT1030 is a high side current sensemonitor containing an internal reference andcomparator with a non-latching output. Usingthis device eliminates the need to disrupt theground plane when sensing a load current.

The wide input voltage range of 20V down to aslow as 2.2V make it suitable for a range ofapplications. Dynamics and supply current areoptimized for the processing of fast pulses,associated with switch mode applications.

Features

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Low cost, accurate high-side current sensing Output voltage scaling Up to 18V output 2.2V - 20V supply range 270?A quiescent current 1.5% typical accuracy SO8 package

Voltage reference on chip Comparator on chip

Applications

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Battery chargers Electronic fuse DC motor control Over current monitor Power management Inrush current limiting

https://www.ichunt.com/Typical application circuit

Ordering information

Device StatusZXCT1030X8TAZXCT1030N8TALast time buyPreview

PackageMSOP8SO8

DevicemarkingZXCT1030ZXCT1030

Reel size(inches)

7 7

Tape width(mm)

12 12

Quantityper reel 1000500

ZXCT1030

Absolute maximum ratings

Voltage on any pin -0.6V and VCC +0.6V Operating temperature -40 to 85°C Storage temperature -55 to 125°C Package power dissipation (Tamb = 25°C)

MSOP8 500mW

Recommended operating conditions

ParameterVCC

VSENSE+VSENSE(a)VOUTVcomp-inTamb

Min. Max. Unit2.2 20V 2.2 VCCV10500mV00.005-40

VSENSE-1V

1085

VV°C

Pin-out connections

Pin nameVCC

VCCVSENSE-VSENSE+GND Vcomp_outVOUT Vref_outVcomp_inFunction

Supply voltageNegative sense inputPositive sense input

VSENSE-VSENSE+

https://www.ichunt.com/GNDGround

Vcomp_inVref_out

VOUTVcomp_out

Comparator input, usually a ratio of the reference or other control signalReference output

Current monitor output voltageOpen collector comparator output

ZXCT1030

Electrical characteristics (ZXCT1030X8) - Test conditions Tamb = 25°C, VIN = VCC = 15V,

Rcomp = 10kV, Vcomp_supply = 5V unless otherwise stated.Symbol Parameter Conditions VCC VCC range range VSENSE+ Sense+ voltage VOUT Output Limits Unit Min. Typ. Max. 2.2 20 V 2.2 VCC 0210mV88100112mV284 300 316 mV 480 500 520 mV 970 1000 1030 mV 4500 5000 5500 mV 1.2 1.5 1.8 k?30 ppm/°C 170 2.8 270 48 70 350 90 220 μA μA nA V resistance ROUT Output VOUTVOUT coefficient TC temperature ICC Supply current VSENSE- = 15V VSENSE+ input current ISENSE+ VSENSE- input current VSENSE- = 14.9V ISENSE-VCM(min)(b)Minimum active common VCC =15V mode voltageVcomp_supply = 5V

Vcomp_in = VREF VSENSE = 10mV VSENSE =100mV ACC Accuracy VSENSE = 100mV Gain VOUT /VSENSE VSENSE =10mVp-p BW Bandwidth VSENSE = 100mVp-p Comparator Vcomp_in Input voltage VH Hysteresis bias IB Input delay TD Propagation VOL Output voltage low Output voltage high VOH IOL IOH

Output sink current Output high leakage current

Voltage reference Vref VOL = 0.4V VSENSE = 0V VSENSE = 10mV VSENSE = 30mV VSENSE = 50mV VSENSE = 100mV VSENSE = 500mV

VSENSE- = 15V, VOUT = 1V -3 https://www.ichunt.com/9.7 10.0 3 % 10.3 3 MHz 6 MHz 0.005 10 V 15 mV 5 80 150 nA 100 ns 30 150 200 mV Vcomp_ V supply

2 mA 1.0 μA Reference current = +300?A to -5?Adelta Vref Change in Vref Isource 5?A to Isink 300?A

TC PSR Supply rejection NOTES:

(a)VSENSE = (VSENSE+) - (VSENSE-)

1.200 1.240 1.280 V 10 mV 30 ppm/°C 0.01 %/V ZXCT1030

Electrical characteristics (ZXCT1030N8) - Test conditions Tamb = 25°C, VIN = VCC = 15V,

Rcomp = 10kV, Vcomp_supply = 5V unless otherwise stated.Symbol Parameter Conditions VCC VCC range range VSENSE+ Sense+ voltage VOUT Output Limits Unit Min. Typ. Max. 2.2 20 V 2.2 VCC 0210mV88100112mV284 300 316 mV 480 500 520 mV 970 1000 1030 mV 4500 5000 5500 mV 1.2 1.5 1.8 k?30 ppm/°C 170 2.8 270 48 70 350 90 220 μA μA nA V resistance ROUT Output VOUTVOUT coefficient TC temperature ICC Supply current VSENSE- = 15V VSENSE+ input current ISENSE+ VSENSE- input current VSENSE- = 14.9V ISENSE-VCM(min)(b)Minimum active common VCC =15V mode voltageVcomp_supply = 5V

Vcomp_in = VREF VSENSE = 10mV VSENSE =100mV ACC Accuracy VSENSE = 100mV Gain VOUT /VSENSE VSENSE =10mVp-p BW Bandwidth VSENSE = 100mVp-p Comparator Vcomp_in Input voltage VH Hysteresis bias IB Input delay TD Propagation VOL Output voltage low Output voltage high VOH IOL IOH

Output sink current Output high leakage current

Voltage reference Vref VOL = 0.4V VSENSE = 0V VSENSE = 10mV VSENSE = 30mV VSENSE = 50mV VSENSE = 100mV VSENSE = 500mV

VSENSE- = 15V, VOUT = 1V -3 https://www.ichunt.com/9.7 10.0 3 % 10.3 3 MHz 6 MHz 0.005 10 V 15 mV 5 80 150 nA 100 ns 30 150 200 mV Vcomp_ V supply

2 mA 1.0 μA Reference current = +300?A to -5?Adelta Vref Change in Vref Isource 5?A to Isink 300?A

TC PSR Supply rejection NOTES:

(c)VSENSE = (VSENSE+) - (VSENSE-)

(d)Level of VSENSE+ where comparator output defaults to 'off'.

1.200 1.240 1.280 V 10 mV 30 ppm/°C 0.01 %/V