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Sometimes environments can get really rough. For example, where voltage surges can reach 10kV and high value products must be protected. Helping to mitigate these effects is the Si86xxT Family of digital isolators from Silicon Labs that are rated to 10kV surge protection.
The Si86xxxT is a family of multi-channel digital isolators that are based on the proprietary capacitive isolation technology that enables low propagation delay and skew, low emissions, high noise immunity and high reliability and long lifetime. The Si86xxxT family has products ranging from dual channel to quad channel in wide body packages to accommodate the higher isolation rating associated with these products. The high-voltage isolation barrier has been enhanced to withstand 10 kV surge hits safely. Family highlights include:
- 10 kV surge capability, VDE 0884-10 reinforced rating
- Fastest and most accurate timing specs – low propagation delay (10 ns) and low skew (1 ns)
- Highest noise immunity (CMTI) of 100 kV/µs, and lowest electro-magnetic (EM) noise emissions (20 dB lower than ADI products)
- Long lifetimes under high voltage conditions – 100 years at 1000 V
Ideally suited for harsh applications such as:
- Solar Inverters
- Outdoor equipment such as base stations
- Motor Control and Drives
- Metering
- Automotive
The following table summarizes the key advantages:
Customer or Market Need |
Product Feature |
Benefit |
Secondary lightning protection |
10 kV surge withstand capability (This feature was not previously available with Si86xx isolators) |
Secondary lightning protection
|
Fast and accurate timing budgets |
Low propagation delay of 10 ns and low skew of 1ns |
Increases system efficiency and/or effectiveness |
High noise immunity and low emissions |
High noise immunity of 100 kV/µs and 20 dB lower emissions compared to other digital isolators (Noise immunity of 100 kV/µs was not previously available with Si8xxx isolators) |
Increases system effectiveness, safety and reliability by preventing external noise from disrupting system |
Long lifetimes under high voltage bias |
SiO2 based isolation barrier provides 100 year lifetimes at |
Prolongs system lifetime and ensures safety |
The family consists of 20 variations based on channel count ( 1, 2 , 3 or 4 forward; 0, 1 or 2 reverse), package style and output default state.
The Si864xxT EVB allows designers to quickly evaluate capabilities and functionality, either by driving inputs to logic high or low, or injecting signals to the header pins via single wires or a 2 x 6 ribbon cable.
Click here for Si8622BT Digital Isolator RS 905-3814
Click here for Si8630BT Digital Isolator RS 905-3839
Click here for Si8640ET Digital Isolator RS 905-3860
Click here for Si86xxTISO-KIT Evaluation Kit RS 904-8531
All channel variants are available using the View Similar Product Link on the above base devices.