bidirectional I2C isolation solution HopeRF Micro-electronics CMT8101N for enhanced system stability
Product Overview
The CMT8100/CMT8101 series are highly reliable, bidirectional I2C isolators compatible with AEC-Q100 and UL1577 safety standards. They offer high dielectric withstand voltages (3.75 kVrms, 5 kVrms), low power consumption, high electromagnetic interference (EMI) immunity, and low radiation. With an I2C clock speed of up to 2 MHz and common-mode transient immunity (CMTI) of 150 kV/us, these devices provide robust isolation for various digital interfaces. Their wide supply voltage range simplifies direct connection to most digital interfaces and enables smooth level translation. The high system-level EMC performance enhances equipment reliability and stability.
Product Attributes
- Brand: HopeRF
- Certifications: UL, CQC, CSA, DIN VDE V 0884-11
- Compliance: RoHS
- AEC-Q100 Standard: Compliant
Technical Specifications
| Model | Package | Insulation Voltage (Vrms) | I2C Clock Speed (MHz) | Supply Voltage (V) | CMTI (kV/us) | ESD (HBM) | Isolation Barrier Lifetime (> years) | Power Consumption (mA/ch @ 1 Mbps) | Propagation Delay ( | Operating Temperature (C) |
|---|---|---|---|---|---|---|---|---|---|---|
| CMT8100/CMT8101 | SOIC-8 Narrow | 3750 / 5000 | Up to 2 | 2.5 to 5.5 | 150 | 8 kV | > 40 | 1.5 | -40 to 125 | |
| CMT8100/CMT8101 | SOIC-16 Wide | 3750 / 5000 | Up to 2 | 2.5 to 5.5 | 150 | 8 kV | > 40 | 1.5 | -40 to 125 | |
| CMT8100/CMT8101 | SOW-8 Wide | 3750 / 5000 | Up to 2 | 2.5 to 5.5 | 150 | 8 kV | > 40 | 1.5 | -40 to 125 |
Applications
- Power over Ethernet
- Isolated I2C, SMBus, or PMBus interfaces
- I2C level translation
- Battery management systems
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