VNF9Q20F datasheet(39/111 Pages) STMICROELECTRONICS

Teilenummer	VNF9Q20F

Bauteilbeschribung	4-channel high-side driver with STi²Fuse protection for automotive power distribution applications

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CHLOFFTCRxx

Channel latch OFF timer control register

Address:

0x10h to 0x11h

Type:

Reset:

Description:

Channel latch OFF timer control register

In case of power limitation or thermal shutdown event, the output channel behavior is configurable (by means of 2

bits) as latch off or time limited auto-restart (tblanking).

By default, the time limited auto-restart mode is the set behavior.

In latched off-state, the fault must be cleared to re-enable the output channel after an overtemperature or power

limitation event.

The blanking window duration (tblanking) in case of power limitation or thermal shutdown events can be set, per

channel, according to the following table:

Table 37. Programmable tblanking values

CHLOFFTCRx3

CHLOFFTCRx2

CHLOFFTCRx1

CHLOFFTCRx0

Latch OFF (default)

16 ms

32 ms

…

224 ms

240 ms

VNF9Q20F

SPI functional description

DS13909 - Rev 8

page 39/111

VNF9Q20F Datenblatt(PDF) 39 Page - STMicroelectronics