SI8285 Datasheet, PDF (4/32 Pages) Silicon Laboratories – System Safety Features

2.2 Device Behavior
The following tables show the truth tables for the Si8285 and Si8286.
Table 2.1. Si8285 Truth Table
Si8285/86 Data Sheet
System Overview
IN+
IN– VDDA State
H
H
Powered
H
L
Powered
L
X
Powered
X
X
Powered
X
X
Powered
Note:
1. Driver state after soft shutdown.
VDDB–VMID
State
Powered
Powered
Powered
Unpowered
Powered
Desaturation
State
Undetected
Undetected
Undetected
—
Detected
VH
VL
RDY
Hi-Z
Pull-down
H
Pull-up
Hi-Z
H
Hi-Z
Pull-down
H
—
—
L
Hi-Z
Pull-down¹
H
FLTb
H
H
H
H
L
Table 2.2. Si8286 Truth Table
IN+
IN–
VDDA State
H
H
Powered
H
L
Powered
L
X
Powered
X
X
Powered
Note:
1. Driver state after soft shutdown.
VDDB–VMID State
Powered
Powered
Powered
Powered
Desaturation State
Undetected
Undetected
Undetected
Detected
VO
Low
High
Low
Low¹
/FLT
H
H
H
L
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