VN7140AS12 datasheet(28/39 Pages) STMICROELECTRONICS

Part #	VN7140AS12

Description	High-side driver with Multisense analog feedback for automotive applications

PDF	39 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

28 / 39 page

Application information

VN7140AS12

28/39

DocID029756 Rev 2

4.4.2

Short to VCC and OFF-state open-load detection

Short to VCC

A short circuit between VCC and output is indicated by the relevant current sense pin set to

VSENSEH during the device off-state. Small or no current is delivered by the current sense

during the on-state depending on the nature of the short circuit.

OFF-state open-load with external circuitry

Detection of an open-load in off mode requires an external pull-up resistor RPU connecting

the output to a positive supply voltage VPU.

It is preferable that VPU is switched off during the module standby mode in order to avoid

the overall standby current consumption to increase in normal conditions, i.e. when load is

connected.

RPU must be selected in order to ensure VOUT > VOLmax in accordance with the following

equation:

Equation

VN7140AS12 Datasheet(PDF) 28 Page - STMicroelectronics