SI846X Datasheet, PDF (22/36 Pages) Silicon Laboratories – LOW POWER SIX-CHANNEL DIGITAL ISOLATOR

Si8460/61/62/63
2.3. Device Operation
Device behavior during startup, normal operation, and shutdown is shown in Table 12.
Table 12. Si846x Logic Operation Table
V_I
Input^1,2
VDDI
State^1,3,4
VDDO
State^1,3,4
V_O Output^1,2
Comments
H
P
P
H
Normal operation.
L
P
P
L
X⁵
UP
P
L
Upon transition of VDDI from unpowered to powered, V_O
returns to the same state as V_I in less than 1 µs.
ed ^X5
P
UP
Undetermined
Upon transition of VDDO from unpowered to powered, V_O
returns to the same state as V_I within 1 µs.
Notes:
d _{1. VDDI and VDDO are the input and output power supplies. VI and VO are the respective input and output terminals.}
2. X = not applicable; H = Logic High; L = Logic Low; Hi-Z = High Impedance.
n _{s 3. “Powered” state (P) is defined as 2.70 V < VDD < 5.5 V.}
e _{4. “Unpowered” state (UP) is defined as VDD = 0 V.}
Not ^{Rfoer cNoemwmDesign 5. Note that an I/O can power the die for a given side through an internal diode if its source has adequate current.}
22
Rev. 1.5