ADUM4190TRIZ-EP

Overview

The ADUM4190TRIZ-EP is an enhanced product isolated error amplifier based on iCoupler technology, designed for linear feedback power supplies. It features a wide voltage supply range of 3.0 V to 20 V on both sides and operates within a military temperature range of −55°C to +125°C. The device provides a typical output bandwidth of 400 kHz and maintains high stability with an initial error accuracy of 0.5% at 25°C and 1% total error across the full temperature range. It includes a 1.225 V reference output and supports reinforced isolation voltages up to 5000 V rms.

Feature Summary

• Stable transfer function over time and temperature without current transfer ratio degradation
• Integrated high-accuracy 1.225 V reference voltage source
• Wideband operational amplifier compatible with Type II or Type III compensation networks
• Military temperature range operation from -55°C to +125°C

Applications

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

Procurement Notes

Verify that the specific part number suffix indicates the Enhanced Product (EP) variant, which differs from standard commercial versions by offering controlled manufacturing baselines and extended temperature ranges. Confirm compliance with AQEC standards if defense or aerospace qualification data is required for the specific procurement order.

Selection Notes

Select this component when replacing optocouplers in primary-side controlled power supplies to improve transient response and stability. Ensure the design accommodates the 16-lead wide-body SOIC package dimensions and utilizes the internal 1.225 V reference for accurate setpoint comparison against the supply output.

Part Context

This component belongs to the ADuM4190 family of isolated error amplifiers utilizing Analog Devices' iCoupler technology. Unlike standard commercial variants, the EP version is specifically qualified for harsh environments, featuring controlled assembly and fabrication sites to ensure reliability in critical applications.

Replacement Considerations

ADUM4190TRIZ

FAQ

What is the maximum working insulation voltage under DIN VDE V 0884-10?

The maximum working insulation voltage (VIORM) is 849 V peak.

How does the ADUM4190TRIZ-EP compare to optocoupler solutions regarding lifetime stability?

Unlike optocouplers, the ADUM4190TRIZ-EP transfer function does not change over its lifetime and remains stable over the wide temperature range of −55°C to +125°C.