Overview
The ISO7741FBDWR is a high-performance, quad-channel digital isolator produced by Texas Instruments. This device is part of the ISO774x family and is specifically designed for applications requiring robust isolation and high-speed data transfer. The ISO7741FBDWR features three forward and one reverse-direction channel, making it versatile for various system configurations. It is qualified for automotive applications and meets the AEC-Q100 standards, ensuring reliability in harsh environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 4 | |
| Channel Type | Unidirectional (3 forward, 1 reverse) | |
| Voltage - Isolation | 5000 VRMS | |
| Common Mode Transient Immunity (Min) | 85 kV/μs | |
| Data Rate | 100 Mbps | |
| Propagation Delay tpLH / tpHL (Max) | 16 ns / 16 ns | |
| Pulse Width Distortion (Max) | 4.9 ns | |
| Rise / Fall Time (Typ) | 2.4 ns / 2.4 ns | |
| Voltage - Supply | 2.25 V ~ 5.5 V | |
| Operating Temperature | -55°C ~ 125°C | |
| Package / Case | 16-SOIC (0.295", 7.50mm Width) |
Key Features
- Robust isolation barrier with >30-year projected lifetime at 1500 VRMS working voltage and up to 5000 VRMS isolation rating.
- High-speed data transfer with a data rate of up to 100 Mbps.
- Wide supply range of 2.25 V to 5.5 V and level translation capabilities.
- Low power consumption, typically 1.5 mA per channel at 1 Mbps.
- Low propagation delay of 10.7 ns typical (5V Supplies).
- Robust electromagnetic compatibility (EMC) with system-level ESD, EFT, and surge immunity.
- ±8 kV IEC 61000-4-2 contact discharge protection across the isolation barrier.
- Safety-related certifications including DIN EN IEC 60747-17, UL 1577, IEC 61010-1, IEC 62368-1, and GB 4943.1.
Applications
- Industrial automation
- Motor control
- Power supplies
- Solar inverters
- Medical equipment
- Hybrid, electric, and powertrain systems (EV/HEV)
- Battery management systems (BMS)
- On-board chargers
- Traction inverters
- DC/DC converters
- Inverter and motor control
Q & A
- What is the maximum data rate of the ISO7741FBDWR?
The maximum data rate of the ISO7741FBDWR is 100 Mbps.
- What is the isolation voltage rating of the ISO7741FBDWR?
The isolation voltage rating of the ISO7741FBDWR is up to 5000 VRMS.
- What are the operating temperature ranges for the ISO7741FBDWR?
The operating temperature range for the ISO7741FBDWR is -55°C to 125°C.
- What are the safety-related certifications for the ISO7741FBDWR?
The ISO7741FBDWR is certified according to DIN EN IEC 60747-17, UL 1577, IEC 61010-1, IEC 62368-1, and GB 4943.1.
- What is the typical power consumption per channel at 1 Mbps?
The typical power consumption per channel at 1 Mbps is 1.5 mA.
- What is the propagation delay of the ISO7741FBDWR?
The propagation delay of the ISO7741FBDWR is typically 10.7 ns (5V Supplies).
- What type of isolation barrier does the ISO7741FBDWR use?
The ISO7741FBDWR uses a double capacitive silicon dioxide (SiO2) insulation barrier.
- What are the package options available for the ISO7741FBDWR?
The ISO7741FBDWR is available in a 16-SOIC package.
- Is the ISO7741FBDWR RoHS compliant?
- What is the common mode transient immunity (CMTI) of the ISO7741FBDWR?
The common mode transient immunity (CMTI) of the ISO7741FBDWR is 85 kV/μs.
