ADUM3190BRQZ

Overview

The ADuM3190BRQZ is a high stability isolated error amplifier utilizing iCoupler technology. It features a 400 kHz bandwidth, 2.5 kV rms isolation voltage, and operates on supply voltages from 3 V to 20 V. The device includes a 1.225 V reference with ±1% accuracy over the full temperature range of −40°C to +85°C. It provides two outputs: EAOUT (±3 mA) and EAOUT2 (±1 mA).

Feature Summary

• Provides stable isolated feedback for power supplies without lifetime drift associated with optocouplers.
• Integrates a wideband operational amplifier compatible with Type II or Type III compensation networks.
• Includes a high-accuracy internal reference voltage for precise output setpoint comparison.

Applications

• Linear power supplies
• Inverters
• Uninterruptible Power Supply (UPS)
• Voltage monitors

Procurement Notes

Verify the specific suffix BRQZ against the manufacturer's ordering guide to confirm the exact grade and packaging configuration. Ensure compatibility with QSOP-16 footprints during procurement planning. Confirm regulatory approvals required for the target application region before finalizing orders.

Selection Notes

Select this component when primary side control is required to improve transient response and power density. Choose the B grade for operation within the −40°C to +85°C ambient temperature range. Verify that the 400 kHz bandwidth meets the loop stability requirements of the specific PWM controller being used.

Part Context

This part belongs to the ADuM3190 family of isolated error amplifiers designed to replace optocoupler and shunt regulator solutions. It enables improvements in system stability and allows for smaller output filter components due to higher bandwidth capabilities compared to traditional discrete isolation methods.

Replacement Considerations

Direct substitutes include other parts within the ADuM3190 series such as the ADUM3190ARQZ or ADUM3190SRQZ, depending on the required operating temperature range and performance grade specifications.