Hot-swappable, robust-EMC bidirectional I2C isolator with bidirectional clock
Product details
Parameters
Package | Pins | Size
Features
- Reliable Isolated Bidirectional, I2C Compatible, Communication
- ISO1640: Bidirectional Isolated SDA and SCL communication
- ISO1641: Bidirectional SDA and unidirectional SCL communcation
- Hot Swappable SDA and SCL
- Bidirectional data transfer up to 1.7 MHz Operation
- Robust isolation barrier with enhanced EMC:
- >100-year projected lifetime at 450 VRMS working voltage (D-8) and 1500 VRMS working voltage (DW-16)
- Up to 5000 VRMS isolation rating
- Up to 10 kV reinforced surge capability
- ±100 kV/µs typical CMTI
- ±8 kV IEC-ESD 61000-4-2 contact discharge protection across isolation barrier
- Same side ±8 kV IEC-ESD unpowered contact discharge on SCL2 and SDA2 (Side 2)
- Supply range: 3 V to 5.5 V (Side 1) and 2.25 V to 5.5 V (Side 2)
- Open-Drain Outputs With 3.5-mA (Side 1) and 50-mA (Side 2) Sink Current Capability
- Max capacitive load: 80 pF (Side 1) and 400 pF (Side 2)
- 16-SOIC (DW-16) and 8-SOIC (D-8) Package Options
- –40°C to +125°C Operating Temperature
- Safety-Related Certifications (planned):
- UL 1577 Component Recognition Program
- DIN VDE V 0884-11
- IEC 62368-1, IEC 61010-1, IEC 60601-1 and GB4943.1-2011 certifications
All trademarks are the property of their respective owners.
Description
The ISO1640 and ISO1641 (ISO164x) devices are hot swappable, low-power, bidirectional isolators that are compatible with I2C interfaces. The ISO164x supports UL 1577 isolation ratings of 5000 VRMS in the 16-DW package, and 3000 VRMS in the 8-D package. Each isolation channel in this low emissions device has a logic input and open drain output separated by a double capacitive silicon dioxide (SiO2) insulation barrier. This family includes basic and reinforced insulation ratings devices certified by VDE, UL, CSA, TUV and CQC. The ISO1640 has two isolated bidirectional channels for clock and data lines while the ISO1641 has a bidirectional data and a unidirectional clock channel. The ISO164x family integrates logic required to support bidirectional channels, providing a much simpler design and smaller footprint when compared to optocoupler-based solutions.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- Isolated, bidirectional, I2C-compatible communication
- For evaluation of ISO1640 and ISO1641 devices in D and DW packages
- Supply voltage and level translation range: 3 V to 5.5 V on side 1 and 2.25 V to 5.5 V on side 2
- Test points and headers for standalone evaluation or evaluation with larger systems
- (...)
Design tools & simulation
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| SOIC (D) | 8 | View options |
| SOIC (DW) | 16 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.