Overview
The ADuM4190BRIZ is an isolated error amplifier produced by Analog Devices Inc., leveraging the company's iCoupler® technology. This component is specifically designed for use in linear feedback power supplies, offering significant improvements in transient response, power density, and stability compared to traditional optocoupler and shunt regulator solutions. The ADuM4190BRIZ ensures a stable transfer function over its lifetime and across a wide temperature range of −40°C to +125°C, making it highly reliable for various power supply applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Initial Accuracy | - | 0.5% | - | - |
| Accuracy over Full Temperature Range | - | 1% | - | - |
| Reference Voltage | - | 1.225 V | - | V |
| Power Supply Range (VDD1 and VDD2) | 3.0 V | - | 20 V | V |
| Total Supply Current | - | <7 mA | - | mA |
| Output -3 dB Bandwidth | - | 400 kHz | - | kHz |
| Isolation Voltage | - | 5 kV rms | - | V rms |
| Ambient Operating Temperature | -40°C | - | 125°C | °C |
| Maximum Junction Temperature | - | - | 150°C | °C |
Key Features
- Stable over time and temperature with 0.5% initial accuracy and 1% accuracy over the full temperature range.
- Compatible with Type II or Type III compensation networks.
- Reference voltage of 1.225 V.
- Compatible with DOSA (Distributed-power Open Standards Alliance) modules.
- Low power operation with total supply current less than 7 mA.
- Wide voltage supply range from 3 V to 20 V for both VDD1 and VDD2.
- Output -3 dB bandwidth of 400 kHz typical.
- Reinforced isolation voltage of 5 kV rms.
- Wide ambient operating temperature range from -40°C to +125°C.
- High accuracy and stability, making it suitable for linear feedback power supplies, inverters, and uninterruptible power supplies (UPS).
Applications
- Linear feedback power supplies.
- Inverters.
- Uninterruptible power supplies (UPS).
- DOSA-compatible modules.
- Voltage monitors.
Q & A
- What is the primary application of the ADuM4190BRIZ?
The ADuM4190BRIZ is primarily used in linear feedback power supplies.
- What is the initial accuracy of the ADuM4190BRIZ?
The initial accuracy of the ADuM4190BRIZ is 0.5%.
- What is the temperature range over which the ADuM4190BRIZ operates?
The ADuM4190BRIZ operates over a temperature range of -40°C to +125°C.
- What is the reference voltage provided by the ADuM4190BRIZ?
The reference voltage provided by the ADuM4190BRIZ is 1.225 V.
- What is the isolation voltage rating of the ADuM4190BRIZ?
The isolation voltage rating of the ADuM4190BRIZ is 5 kV rms reinforced.
- What is the typical output bandwidth of the ADuM4190BRIZ?
The typical output bandwidth of the ADuM4190BRIZ is 400 kHz.
- Is the ADuM4190BRIZ compatible with DOSA modules?
Yes, the ADuM4190BRIZ is compatible with DOSA modules.
- What is the total supply current of the ADuM4190BRIZ?
The total supply current of the ADuM4190BRIZ is less than 7 mA.
- What are the safety and regulatory approvals for the ADuM4190BRIZ?
The ADuM4190BRIZ has safety and regulatory approvals including UL recognition, CSA Component Acceptance Notice, and VDE certificate of conformity.
- Is the ADuM4190BRIZ suitable for military and aerospace applications?
Yes, the ADuM4190-EP version supports defense and aerospace applications with a military temperature range and controlled manufacturing baseline.
