si8405 Silicon Laboratories, si8405 Datasheet - Page 22

• Manufacturer Part Number: si8405
• Description: Bidirectional I 2c Isolators With Unidirectional Digital Channels
• Manufacturer: Silicon Laboratories

Si840x
6. Errata and Design Migration Guidelines
When using the new ISOpro products, or when migrating from Silicon Labs' legacy isolators, designers must
consider and adhere to the following requirements.
6.1. Power Supply Bypass Capacitors
When using the ISOpro 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.
6.1.1. Resolution
This issue will be eliminated in a future revision of the device. Refer to "8.Ordering Guide" on page 25 for current
ordering information.
22
Preliminary Rev. 0.1