VN9D5D20F datasheet(47/96 Pages) STMICROELECTRONICS

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Figure 19. Minimum ON time for digital current sense availability

Channelx

Outputx

Conv_wdwx

tON_CS(min)

GADG311020171223MT

The sequence of channels to be converted is managed through an internal stack:

•

Stack size is equal to the number of channels plus frame temperature sensor

•

A conversion of the selected channel is done based on the information stored at the end of the stack (see

Figure 20. Channel's sequence internal stack)

•

After the reset of the device or when no channels are active, the conversion of the frame temperature

sensor is done continuously

•

When the conversion of a channel_x has to start, the channel_x is moved to the end of the stack while the

other remaining channels are moved up

Figure 20. Channel's sequence internal stack

Elaboration of new stack

based on the conversion

request and priority

management

Conv_ch3

NEXT_STACK = STACK

Channel 6 (Tframe)

is converted

Channel 5 is converted

Bottom position is at

highest Priority

Channel 3 is converted

Conv_ch5

Time

No Conv

Tframe is

Converted

Next Stack

Stack

Next Stack

Stack

Next Stack

Stack

GADG311020171225MT

Note:

The figure above shows an example of how the priority is managed through a stack in a 6 channels device.

VN9D5D20F

Digital current sense diagnostic

DS12936 - Rev 6

page 47/96

VN9D5D20F Datasheet(PDF) 47 Page - STMicroelectronics

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