Overview
The ISO6721FBDR from Texas Instruments is a high-performance, dual-channel digital isolator designed for applications requiring robust isolation and low power consumption. This device is part of the ISO672xB family, which offers high electromagnetic immunity and low emissions. The ISO6721FBDR is particularly suited for cost-sensitive applications that demand up to 3000 VRMS isolation ratings. It features a double capacitive silicon dioxide (SiO2) insulation barrier, ensuring reliable isolation of CMOS or LVCMOS digital I/Os. The device is certified by various safety standards, including DIN EN IEC 60747-17, UL 1577, IEC 62368-1, and IEC 60601-1, making it suitable for a wide range of industrial and medical applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC1 and VCC2) | 1.71 - 1.89 V, 2.25 - 5.5 V | V |
| Data Rate | Up to 50 Mbps | Mbps |
| Isolation Rating | Up to 3000 VRMS | VRMS |
| Common Mode Transient Immunity (CMTI) | ±150 kV/μs (typical) | kV/μs |
| Propagation Delay | 11 ns (typical) | ns |
| Operating Temperature | -40°C to +125°C | °C |
| Package Type | Narrow-SOIC (D-8) | |
| Maximum Power Dissipation | 72.7 mW (typical) | mW |
| ESD Protection | ±8 kV IEC 61000-4-2 contact discharge | kV |
Key Features
- Functional Safety-Capable with documentation to aid in functional safety system design
- High-performance dual-channel digital isolator with up to 50 Mbps data rate
- Robust isolation barrier with up to 3000 VRMS isolation rating and ±150 kV/μs typical CMTI
- Wide supply range: 1.71 V to 1.89 V and 2.25 V to 5.5 V
- Level translation from 1.71 V to 5.5 V
- Default output High (ISO672xB) and Low (ISO672xFB) options
- Wide temperature range: -40°C to +125°C
- Low power consumption: 1.8 mA per channel typical at 1 Mbps
- Low propagation delay: 11 ns typical
- Robust electromagnetic compatibility (EMC) with system-level ESD, EFT, and surge immunity
- Safety-related certifications: DIN EN IEC 60747-17, UL 1577, IEC 62368-1, IEC 61010-1, IEC 60601-1
Applications
- Power supplies
- Grid and electricity meters
- Motor drives
- Factory automation
- Building automation
- Lighting systems
- Appliances
Q & A
- What is the maximum data rate of the ISO6721FBDR?
The ISO6721FBDR supports a maximum data rate of up to 50 Mbps.
- What is the isolation rating of the ISO6721FBDR?
The device has an isolation rating of up to 3000 VRMS.
- What are the operating temperature ranges for the ISO6721FBDR?
The operating temperature range is from -40°C to +125°C.
- What type of package does the ISO6721FBDR come in?
The device is packaged in a Narrow-SOIC (D-8) package.
- What are the safety certifications for the ISO6721FBDR?
The device is certified according to DIN EN IEC 60747-17, UL 1577, IEC 62368-1, IEC 61010-1, and IEC 60601-1.
- What is the typical propagation delay of the ISO6721FBDR?
The typical propagation delay is 11 ns.
- What is the maximum power dissipation of the ISO6721FBDR?
The maximum power dissipation is typically 72.7 mW.
- Does the ISO6721FBDR have ESD protection?
Yes, it has ±8 kV IEC 61000-4-2 contact discharge protection.
- What are some common applications for the ISO6721FBDR?
Common applications include power supplies, grid and electricity meters, motor drives, factory automation, building automation, lighting systems, and appliances.
- What is the typical current consumption per channel at 1 Mbps?
The typical current consumption per channel at 1 Mbps is 1.8 mA.
