ADUM4190TRIZ-RL

Overview

The ADuM4190TRIZ-RL is a high stability isolated error amplifier utilizing iCoupler technology. It features a 400 kHz bandwidth, 5 kV rms reinforced isolation voltage, and operates within a supply range of 3 V to 20 V on both sides. The device provides a precise 1.225 V reference with ±1% accuracy over the full temperature range of −40°C to +125°C. Packaged in a 16-lead wide-body SOIC (RI-16-2), it delivers low power consumption under 7 mA total current.

Feature Summary

• Stable transfer function unaffected by lifetime degradation or high temperatures compared to optocouplers
• Integrated wideband operational amplifier for fast transient response and loop compensation
• High accuracy internal reference voltage for precise output setpoint comparison
• Reinforced 5 kV rms isolation rating with comprehensive safety regulatory approvals

Applications

• Linear feedback power supplies
• Inverters
• Uninterruptible power supplies (UPS)
• DOSA-compatible modules
• Voltage monitors

Procurement Notes

Verify the specific grade suffix 'T' corresponds to the required 400 kHz bandwidth variant during procurement. Confirm that the reel packaging option matches production line requirements. Ensure all safety certifications such as UL 1577 and IEC/EN 60950-1 are valid for the target application region. Cross-reference the datasheet revision A specifications against the component marking to ensure authenticity and correct performance parameters.

Selection Notes

Select this model when a 400 kHz bandwidth is necessary for faster loop response compared to standard optocoupler solutions. Choose the TRIZ-RL variant for automated surface-mount assembly processes requiring reel packaging. Ensure the design accommodates the 16-lead wide-body SOIC footprint to maintain the required 8.7 mm clearance and creepage distances for reinforced insulation compliance.

Part Context

This component belongs to the ADuM4190 series of isolated error amplifiers from Analog Devices. It replaces traditional optocoupler and shunt regulator combinations in primary side control applications. The series leverages silicon dioxide (SiO2) digital isolation technology to provide superior stability and accuracy over time and temperature variations.

Replacement Considerations

ADUM4190ARIZ-RL

FAQ

How does the ADuM4190 handle common-mode transients?

The device supports common-mode transients ranging from −100 kV/µs to +100 kV/µs across the insulation barrier.

What is the maximum continuous working voltage across the isolation barrier?

The maximum repetitive isolation voltage (VIORM) is 645 V peak according to DIN EN IEC 60747-17 standards.