VNI8200XP View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

VNI8200XP

Octal high-side smart power solid-state relay with serial/parallel selectable interface on-chip

STMicroelectronics 

Pin function description

Figure 6: Output channel enable/disable behavior

VNI8200XP

9.8

9.9

22/43

IC warning case temperature detection

The TWARN pin is an active low open drain output. This pin is activated if the IC case

temperature exceeds TCSD. According to the PCB thermal design and RthJC value, this

function allows a warning about a PCB overheating condition to be given.

The TWARN bit is also available through SPI. This bit is not latched: the TWARN pin

is low only while the case overtemperature condition is active (TC > TCSD) and is released

when this condition is removed (TC < TCR).

Fault indication

The FAULT pin is an open drain active low fault indication pin. This pin is activated by

one or more of the following conditions:

 Channel overtemperature (OVT)

This pin is activated when at least one of the channels is in junction overtemperature.

Unlike the SPI fault detection bits, this signal is not latched: the FAULT pin is low only

when the fault condition is active and is released if the input driving signal is OFF or after

the OVT protection condition has been removed. This last event occurs if the channel

temperature decreases below the threshold level and the case temperature has not

exceeded TCSD or is below TCR. This means that the FAULT pin is low only while the

junction overtemperature is active (TJ > TTSD) and is released after this condition has

been removed (TJ < TR and TC < TCR).

 Parity check fail

When SPI mode is used (SEL2 = H), if a parity check fault of the incoming SPI frame is

detected or counted, CLK rising edges are different by a multiple of 8, the FAULT pin is

kept low. When counted CLK rising edges are a multiple of 8 and parity check is valid, the

FAULT pin is kept high.

DocID15234 Rev 9

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