VNF9D5F datasheet(43/108 Pages) STMICROELECTRONICS

Part #	VNF9D5F

Description	2-channel high-side driver with STi²Fuse protection for automotive power distribution applications

PDF	108 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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43 / 108 page

FSITCRx

Fail-safe and I²t current sense registers

R/W

Address:

0x15h to 0x16h

Type:

R/W

Reset:

0x0200

Description:

Digital I²t current sense registers

[15:12]

[11]

I²t curve behavior when VOUT < 5 V and IOUT = ILIM

0: to count at maximum speed

1: to latch off the channel

[10]

Parallel mode selected for channels 0 and 1 when PARAL is ‘1’

[9]

External Micro Control Unit bit: selects if the user will have a second fail-safe MCU on board (when it is ‘0’) or if the user will

drive the device in Fail Safe using the main MCU (when it is ‘1’).

[8]

Associated DIx input description bit 1

[7]

Associated DIx input description bit 0

[6:4]

Nominal current setting for I²t curve

[3:1]

Nominal time setting for I²t curve

[0]

Parity bit

Note:

All the bits of these registers are programmable through OTPs.

VNF9D5F

SPI functional description

DS13946 - Rev 8

page 43/108

VNF9D5F Datasheet(PDF) 43 Page - STMicroelectronics