12 V Automotive Smart High Side Multichannel SPI Power Controller SPOC™ +2 BTS72220-4ESP application circuit

Open online SPICE simulator circuit link: atv_bp_high_side_BTS72220-4ESP_application_circuit_v1.TSC

Automotive 12 V Four Channel Smart High Side Power Switch SPOC™+2 BTS7040-2EPA

To switch between the five networks available, change the value of THERMAL_MODEL parameter which can be found on the provided setup
test bench
THERMAL_MODEL=1: P=1W; T=85°C; PCB type: 1s0p 300mm2; Tcase not relevant
THERMAL_MODEL=2: P=1W; T=85°C; PCB type: 1s0p 600mm2; Tcase not relevant
THERMAL_MODEL=3: P=1W; T=85°C; PCB type: 1s0p footprint; Tcase not relevant
THERMAL_MODEL=4: P=1W; T=85°C; PCB type: 2s2p with thermal via; Tcase not relevant
THERMAL_MODEL=5: P=1W; T=85°C; Junction to Package - connect to Tcase Cauer external heat sink

where: P=power on the power transistor; T=ambient temperature

The Ambient temperature of the entire chip can be set by connecting a voltage source to TAMB input pin.
Junction temperature can be monitored on TJ output pin.
TJ is always TAMB + temperature due to self-heating of the DMOS.

Observations:
It is required to let the TJ pin open (no external connection)
The convention is 1V=1°C

Tcase connected at Cauer thermal network

The BTS72220-4ESP is a SPI Power Controller, providing protection functions and diagnosis.
The device is integrated in SMART7 technology.