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VN7140AS Datasheet(PDF) 34 Page - STMicroelectronics

Part # VN7140AS
Description  High-side driver with MultiSense analog feedback for automotive applications
PDF  55 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VN7140AS Datasheet(HTML) 34 Page - STMicroelectronics

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Application information
VN7140AJ, VN7140AS
34/55
DocID027401 Rev 3
IOUT is current flowing through output
K factor represents the ratio between PowerMOS cells and SenseMOS cells; its
spread includes geometric factor spread, current sense amplifier offset and process
parameters spread of overall circuitry specifying ratio between IOUT and ISENSE.
Failure flag indication
In case of power limitation/overtemperature, the fault is indicated by the MultiSense pin
which is switched to a “current limited” voltage source, VSENSEH.
In any case, the current sourced by the MultiSense in this condition is limited to ISENSEH.
The typical behavior in case of overload or hard short circuit is shown in Waveforms
section.
Figure 39: Analogue HSD
– open-load detection in off-state



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