Automotive smart high side switch BSP742R test-bench: open load protection

Open online SPICE simulator circuit link: atv_bp_protection_12V_BSP742R_open_load.tsc

Smart High-Side Switch BSP742R
Protection Features: Open load detection

{1. click here to set circuit parameters}
{2. click on "Run" to calculate components}
{3. click on "OK" and Simulate Transient }

{Supply Voltage [V] }
Vbb:= 12 {Use 5....34}

{Open load on/off trigger time [s] }
tOL_on:= 30m
tOL_off:= 70m

{Thermal model number: }
THERMALMODEL:= 1 {use 1 .... 3}

The BSP742R is high side power switch with integrated vertical power
FET, providing embedded protection and diagnostic functions.

This circuit demonstrates the open load protection features of the BSP742R.
Many other switches provide similar protection features.

Thermal model description:
THERMALMODEL = 1: 1S0P PCB 600mm2
THERMALMODEL = 2: 2S2P no vias
THERMALMODEL = 3: 2S2P vias