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24V dual channel smart High Side Switch PROFET™ BTF6070-2ERV test-bench reverse polarity protection

Open online SPICE simulator circuit link: atv_bp_protection_24V_BTF6070-2ERV_reverse_polarity.tsc

24V Dual Channel Smart High-Side Switch BTF6070-2ERV
Protection Features: Reverse Polarity

Thermal Model description:
select_rc=1: P=1W; T=85°C; PCB type: 1s0p footprin
select_rc=2: P=1W; T=85°C; PCB type: 1s0p 300mm2
select_rc=3: P=1W; T=85°C; PCB type: 1s0p 600mm2
select_rc=4: P=1W; T=85°C; PCB type: 2s2p
where: P=power injected in chip; T=ambient temperature

"Analysis->Transient: Start - End Display"
- Double click on the green window to enter design criteria
- Click on "Run" and Simulate Transient

The BTF6070-2ERV is a 60 mΩ dual channel Smart High-Side Power Switch
It is specially designed to drive Valve Applications in the harsh automotive
environment.The µC compatible power switch can serve a wide application
portfolio starting from 12V, 24V and up to 42V DC.

In case of reverse polarity, the intrinsic body diodes of the power DMOS causes
power dissipation. The current in this intrinsic body diode is limited by the load
itself. Additionally, the current into the ground path and the logic pins has to be
limited to the maximum current with an external resistor.

RGND resistor is used to limit the current in the Zener protection of the device.
Resistors RDEN and RIN are used to limit the current in the logic of the device
and in the ESD protection stage. RSENSE is used to limit the current in
the sense transistor which behaves as a diode.

During reverse polarity, no protection functions are available.

PROFET™ +24V: What the designer should know

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Product info: BTF6070-2ERV