VND7004AY datasheet(31/47 Pages) STMICROELECTRONICS

Part #	VND7004AY

Description	Double channel high-side driver with MultiSense analog feedback for automotive applications

PDF	47 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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31 / 47 page

VND7004AY

Application information

DocID027772 Rev 11

31/47

Where:



VSENSE is the voltage measurable on RSENSE resistor



ISENSE is the current provided from MultiSense pin in current output mode



IOUT is the 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 the ratio between IOUT and ISENSE.

Failure flag indication

In case of power limitation/overtemperature, the fault is indicated by the MultiSense pin

which is swi

tched 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 36: Analogue HSD

– open-load detection in off-state

VND7004AY Datasheet(PDF) 31 Page - STMicroelectronics