Overview
The ISO6720BDR from Texas Instruments is a high-performance, dual-channel digital isolator designed for applications requiring robust isolation and high data transfer rates. This device is part of the ISO6720 series, which includes the ISO6720B, ISO6721B, and ISO6721RB models. The ISO6720BDR is particularly suited for cost-sensitive applications that demand up to 3000 VRMS isolation ratings. It features Texas Instruments' double capacitive silicon dioxide (SiO2) insulation barrier, ensuring high electromagnetic immunity and low emissions while maintaining low power consumption.
The device is certified by various safety standards, including DIN EN IEC 60747-17 (VDE 0884-17), UL 1577, IEC 62368-1, IEC 61010-1, and IEC 60601-1, making it suitable for a wide range of industrial and medical applications.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC1, VCC2) | 1.71 (1.8V), 2.25 (2.5V to 5V) | 1.89 (1.8V), 5.0 (2.5V to 5V) | 1.89 (1.8V), 5.5 (2.5V to 5V) | V |
| Data Rate | 0 | - | 50 | Mbps |
| Isolation Voltage (VIOS) | - | - | 3000 | VRMS |
| Propagation Delay | - | 11 | - | ns |
| Operating Temperature | -40 | - | 125 | °C |
| Supply Current (ICC1, ICC2) at 1 Mbps | 1.8 | - | 2.9 | mA |
| Maximum Power Dissipation (PD) | - | - | 72 | mW |
Key Features
- Functional Safety-Capable: Documentation available to aid functional safety system design.
- High Data Rate: Supports up to 50 Mbps data transfer.
- Robust Isolation Barrier: Up to 3000 VRMS isolation rating, high lifetime at 450 VRMS working voltage, and ±150 kV/μs typical CMTI.
- Wide Supply Range: Operates from 1.71 V to 5.5 V.
- Level Translation: Supports 1.71-V to 5.5-V level translation.
- Default Output Options: Default output High (ISO672xB) and Low (ISO672xFB) options available.
- Wide Temperature Range: Operates from -40°C to +125°C.
- Low Power Consumption: Typical supply current of 1.8 mA per channel at 1 Mbps.
- Robust EMC: System-Level ESD, EFT, and surge immunity, ±8 kV IEC 61000-4-2 contact discharge protection across isolation barrier.
- Safety Certifications: Certified by DIN EN IEC 60747-17 (VDE 0884-17), UL 1577, IEC 62368-1, IEC 61010-1, and IEC 60601-1.
Applications
- Power Supplies: Suitable for isolated power supply designs.
- Grid and Electricity Meters: Used in smart grid and electricity metering applications.
- Motor Drives: Applied in motor drive systems for isolation and protection.
- Factory Automation: Utilized in industrial automation for reliable data transfer.
- Building Automation: Employed in building automation systems for isolated communication.
- Lighting and Appliances: Used in various lighting and appliance control systems.
Q & A
- What is the maximum data rate supported by the ISO6720BDR?
The ISO6720BDR supports up to 50 Mbps data rate.
- What is the isolation voltage rating of the ISO6720BDR?
The device has an isolation voltage rating of up to 3000 VRMS.
- What are the operating temperature ranges for the ISO6720BDR?
The device operates from -40°C to +125°C.
- What are the safety certifications for the ISO6720BDR?
The device is certified by DIN EN IEC 60747-17 (VDE 0884-17), UL 1577, IEC 62368-1, IEC 61010-1, and IEC 60601-1.
- What is the typical supply current at 1 Mbps for the ISO6720BDR?
The typical supply current at 1 Mbps is 1.8 mA per channel.
- Does the ISO6720BDR support level translation?
Yes, it supports 1.71-V to 5.5-V level translation.
- What is the propagation delay of the ISO6720BDR?
The propagation delay is typically 11 ns.
- What are some common applications for the ISO6720BDR?
Common applications include power supplies, grid and electricity meters, motor drives, factory automation, building automation, lighting, and appliances.
- How does the ISO6720BDR ensure robust electromagnetic compatibility (EMC)?
The device features system-level ESD, EFT, and surge immunity, along with ±8 kV IEC 61000-4-2 contact discharge protection across the isolation barrier.
- What is the maximum power dissipation for the ISO6720BDR?
The maximum power dissipation is 72 mW for both sides at VCC1 = VCC2 = 5.5 V, TJ = 150°C, and CL = 15 pF.
