SI8460 Datasheet, PDF (27/36 Pages) Silicon Laboratories – LOW POWER SIX-CHANNEL DIGITAL ISOLATOR

Si8460/61/62/63
3. Errata and Design Migration Guidelines
When using the new Si846x products, or when migrating from Silicon Labs' legacy isolators, designers must
consider and adhere to the following requirements.
3.1. Power Supply Bypass Capacitors (Revision A and Revision B)
When using the Si846x isolators with power supplies > 4.5 V, sufficient VDD bypass capacitors must be present on
both the VDD1 and VDD2 pins to ensure the VDD rise time is less than 0.5 V/µs (which is > 9 µs for a > 4.5 V
supply). Although rise time is power supply dependent, > 1 µF capacitors are required on both power supply pins
(VDD1, VDD2) of the isolator device.
3.1.1. Resolution
For recommendations on resolving this issue, see "2.4.1. Supply Bypass" on page 23. Additionally, refer to "5.
Ordering Guide" on page 29 for current ordering information.
d _{3.2. Latch Up Immunity (Revision A Only)}
e _{Latch up immunity generally exceeds ± 200 mA per pin. Exceptions: Certain pins provide < 100 mA of latch-up}
d immunity. To increase latch-up immunity on these pins, 100  of equivalent resistance must be included in series
with all of the pins listed in Table 13. The 100  equivalent resistance can be comprised of the source driver's
n _{s output resistance and a series termination resistor.}
e 3.2.1. Resolution
n _{This issue has been corrected with Revision B of the device. Refer to "5. Ordering Guide" on page 29 for more}
m _ig ^information.
m ^{s Table 13. Affected Ordering Part Numbers (Revision A Only)}
o ^{e Affected Ordering Part Numbers*}
Device
Revision
ec ^D _{SI8460SV-A-IS/IS1, SI8461SV-A-IS/IS1,}
w _{SI8462SV-A-IS/IS1, SI8463SV-A-IS/IS1}
A
Not ^{Rfor Ne *Note: SV = Speed Grade/Isolation Rating (AA, AB, BA, BB).}
Pin#
2
6
10
14
Name
A1
A5
B6
B2
Pin Type
Input
Input or Output
Input or Output
Output
Rev. 1.5
27