company blog about Original TI ISO7341FCDWR Low Power, Quad Channel Digital Isolators

Original TI ISO7341FCDWR Low Power, Quad Channel Digital Isolators

Shenzhen Mingjiada Electronics Co., Ltd. — Long-term supply of 【TI】ISO7341FCDWR: Low-power four-channel 3/1 configuration 25Mbps digital isolator

1. ISO7341FCDWR Product Overview
The ISO7341FCDWR is a high-performance digital isolator developed by Texas Instruments (TI), utilizing capacitive isolation technology for signal transmission. As a four-channel (3 forward/1 reverse) configuration device, the ISO7341FCDWR supports data rates up to 25Mbps while maintaining ultra-low power consumption. This SOIC-16 packaged isolator is specifically designed for harsh environments such as industrial automation, motor drives, and power systems, offering robust noise suppression and high-reliability isolation.

2. ISO7341FCDWR Key Specifications and Parameters
Model: ISO7341FCDWR
Channel Configuration: Four-channel (3 forward + 1 reverse)
Data Rate: Up to 25 Mbps
Isolation Voltage: 3000 VRMS (compliant with UL1577)
Surge Voltage: 6.4 kVpk (IEC 61000-4-5)
Operating Voltage: 2.7V to 5.5V (VCC1/VCC2)
Power Consumption: 1.4mA per channel (at 1Mbps)
Propagation Delay: 11ns (typical)
Operating Temperature: -40°C to +125°C
Package Type: SOIC-16 (DW) Wide Body Package

3. Six Core Product Features of ISO7341FCDWR
Ultra-low power consumption architecture
- ISO7341FCDWR uses TI's patented capacitive isolation technology, with single-channel power consumption of only 1.4mA at 1Mbps, achieving 70% energy savings compared to optocoupler solutions and significantly reducing system thermal design complexity.
High-speed signal integrity
- Supports 25Mbps high-speed transmission (channel-to-channel delay deviation <2ns), ensuring timing accuracy in applications such as PWM control and ADC communication.
Enhanced Electromagnetic Compatibility
- Certified with 150kV/μs common-mode transient immunity (CMTI), the ISO7341FCDWR maintains stable signal transmission in high-noise environments such as motor drives.
Integrated Fault-Safe Mechanism
- Default high-level output (low-level optional) fault-safe mode enables the ISO7341FCDWR to automatically enter a pre-set safe state in the event of power failure or malfunction.
Wide Temperature Range Industrial-Grade Reliability
- Operates across the full temperature range of -40°C to +125°C, ensuring the ISO7341FCDWR maintains signal isolation performance in extreme environments.
Simplified System Design
- With four isolated channels integrated into a single chip, the ISO7341FCDWR can replace multiple discrete isolators, reducing PCB area by over 30%.

4. The ISO7341FCDWR, with its 3/1 channel configuration and 25Mbps high-speed transmission, plays a critical role in the following fields:
Industrial automation control systems
PLC digital input/output module isolation
Fieldbus communication port protection (e.g., RS-485, CAN)
The ISO7341FCDWR processes control signals via its 3 forward channels and provides status feedback via the reverse channel
Motor drives and inverters
IGBT gate drive signal isolation
Current/voltage sampling signal transmission
High CMTI characteristics ensure the ISO7341FCDWR resists motor start/stop surge interference
Switching Power Supplies and UPS
Multi-channel PWM signal isolation transmission
Secondary-side feedback signal isolation
Low-power characteristics enhance the competitiveness of ISO7341FCDWR in energy-efficient applications

ISO7341FCDWR offers three key advantages: low power consumption, 25Mbps high-speed performance, and a 3/1 channel configuration, making it an ideal isolation solution for industrial control and power electronics design.

Mingjiada Electronics has been supplying the ISO7341FCDWR digital isolator for a long time. For more information about the ISO7341FCDWR or to inquire about pricing, please visit the Mingjiada Electronics official website (https://www.integrated-ic.com/) for details.