VND810 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

VND810

DOUBLE CHANNEL HIGH SIDE DRIVER

STMicroelectronics 

VND810

µC I/Os PROTECTION:

If a ground protection network is used and negative

transients are present on the VCC line, the control pins will

be pulled negative. ST suggests to insert a resistor (Rprot)

in line to prevent the µC I/Os pins to latch-up.

The value of these resistors is a compromise between

the leakage current of µC and the current required by the

HSD I/Os (Input levels compatibility) with the latch-up limit

of µC I/Os.

-VCCpeak/Ilatchup ≤ Rprot ≤ (VOHµC-VIH-VGND) / IIHmax

Calculation example:

For VCCpeak= - 100V and Ilatchup ≥ 20mA; VOHµC ≥ 4.5V

5kΩ ≤ Rprot ≤ 65kΩ.

Recommended Rprot value is 10kΩ.

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