Automotive smart high side switch BSP452 test-bench: clamp of negative output voltage with inductive load

Open online SPICE simulator circuit link: atv_bp_protection_12V_BSP452_output_clamp.tsc

Smart High-Side Power Switch BSP452
Protection Features - Clamp of negative output
voltage with inductive load

The BSP452 is high side power switch with integrated vertical power FET,
providing embedded protection and diagnostic functions.

This circuit demonstrates the clamp of negative output voltage with inductive
load protection features of the BSP452. Many other devices provide similar
protection features.

Output clamp with the inductive load during switch off Von(CL) of about 47V.

{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}

{Thermal model number: }
THERMALMODEL:= 4 { use 1....4 }

{Thermal model description: }
{Thermal Model = 1: 1S0P PCB 600mm2 }
{Thermal Model = 2: 2S2P no vias }
{Thermal Model = 3: 2S2P vias }
{Thermal Model = 4: 1S0P footprint }