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ZXCT1081Q (NRND)

NRND = Not Recommended for New Design

Alternative Parts: ZXCT1082Q, ZXCT1083Q, ZXCT1084Q, ZXCT1085Q, ZXCT1086Q, ZXCT1087Q

40V common-mode range

Datasheet

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Description

The ZXCT1080Q and ZXCT1081Q are high side current sense monitors with a voltage output and a fixed gain of 10. Using this device eliminates the need to disrupt the ground plane when sensing a load current.

The wide input voltage range of 60V and 40V, respectively, down to as low as 3V make it suitable for a range of automotive applications with 60V and 40V load dump withstand capabilities.

The separate supply pin (VCC) allows the device to continue functioning under short circuit conditions.

The ZXCT1080Q and ZXCT1081Q have an extended ambient operating temperature range of -40°C to 125°C enabling it to be used in a wide range of automotive applications including.

The ZXCT1080Q and ZXCT1081Q have been qualified to AEC-Q100 Grade 1 and are Automotive Grade supporting PPAPs.

Feature(s)

Accurate high-side current sensing
- ZXCT1080Q : 3V to 60V continuous high side voltage
- ZXCT1081Q : 3V to 40V continuous high side voltage
-40°C to +125°C temperature range
Output voltage scaling x10
4.5V to 12V VCC range
Low quiescent current:
- 80μA supply pin
- 27μA IS+
Green Molding in SOT25
- Totally Lead-Free & Fully RoHS Compliant
- Halogen and Antimony Free. “Green” Device
Automotive Grade
- Qualified to AEC-Q100 Standards for High Reliability
- PPAP Capable

Application(s)

Automotive current measurement
Battery management
Over-current measurement

Product Specifications

Product Parameters

% Accuracy @ VSENSE =100mV Ta (%)	3.5
% Accuracy @ V_SENSE =100mV Ta	3.5
Compliance (Only Automotive supports PPAP)	Yes
Bandwidth typ (MHz)	0.5
Bandwidth typ (MHz)	0.5
Compliance (Only Automotive supports PPAP)	Automotive
Current output Gain Iout/VSENSE (mA/V)	-
Gain Output/V_SENSE	10
IS- S- Input current (nA)	40
Maximum Output Voltage (V)	N/A
Maximum Output Voltage (V)	VS- -1
Maximum S+ Common-Mode Sense Voltage	40
Maximum S+ Common-Mode Sense Voltage (V)	40
Maximum Sense Voltage	N/A
Maximum V_CC/V_B Supply Voltage	12
Maximum VCC/VB Supply Voltage (V)	12
Minimum S+ Common-Mode Sense Voltage	3
Minimum S+ Common-Mode Sense Voltage (V)	3
Minimum V_CC/V_B Supply Voltage	4.5
Minimum VCC/VB Supply Voltage (V)	4.5
Operating Ambient Temperature Range (°C)	-40 to 125
AEC Qualified	Yes
Quiescent Current (µA)	30
Quiescent Current (µA)	30
Sense Voltage VMAX (mV)	150
Special Features	-
Type	Voltage output
Voltage output Gain VOUT/VSENSE (V/V)	10

Technical Documents

Calculators

Zetex-CM-Calculator-V1.01.xls (1.5 MB)

Recommended Soldering Techniques

TN1.pdf

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2699	2024-09-04	2025-03-04	Product End of Life (EOL)