Overview
The ADUM4190BRIZ-RL is a high-stability isolated error amplifier developed by Analog Devices Inc., utilizing their 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-RL features a wideband operational amplifier and a high accuracy 1.225 V reference voltage, making it ideal for various power supply loop compensation techniques and fast transient condition responses.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Reference Voltage | 1.225 | V | ||
| Operating Temperature Range | -40 | 125 | °C | |
| Supply Voltage Range (VDD1 and VDD2) | 3.0 | 20 | V | |
| Supply Current (IDD1) | 1.4 | 2.0 | mA | |
| Supply Current (IDD2) | 2.9 | 5.0 | mA | |
| Output -3 dB Bandwidth | 400 | kHz | ||
| Isolation Voltage | 5000 | V rms | ||
| Accuracy over Full Temperature Range | 1% |
Key Features
- High stability and accuracy over a wide temperature range (-40°C to +125°C)
- 0.5% initial accuracy and 1% accuracy over the full temperature range
- Compatible with Type II or Type III compensation networks
- Low power operation with total current less than 7 mA
- Wideband operational amplifier for various power supply loop compensation techniques
- High accuracy 1.225 V reference voltage
- Reinforced 5 kV rms isolation voltage rating
- Package in 16-lead SOIC with increased creepage
Applications
- Linear feedback power supplies
- Inverters
- Uninterruptible power supplies (UPS)
- DOSA-compatible modules
- Voltage monitors
- Defense and aerospace applications (ADUM4190-EP model)
Q & A
- What is the primary application of the ADUM4190BRIZ-RL?
The ADUM4190BRIZ-RL is primarily used in linear feedback power supplies.
- What is the isolation voltage rating of the ADUM4190BRIZ-RL?
The ADUM4190BRIZ-RL has a reinforced 5 kV rms isolation voltage rating.
- What is the temperature range for the ADUM4190BRIZ-RL?
The operating temperature range is -40°C to +125°C.
- What is the reference voltage provided by the ADUM4190BRIZ-RL?
The ADUM4190BRIZ-RL provides a high accuracy 1.225 V reference voltage.
- How does the ADUM4190BRIZ-RL compare to optocoupler-based solutions?
The ADUM4190BRIZ-RL offers stable performance over its lifetime and across a wide temperature range, unlike optocoupler-based solutions which have uncertain current transfer ratios.
- What is the output -3 dB bandwidth of the ADUM4190BRIZ-RL?
The output -3 dB bandwidth is typically 400 kHz.
- Is the ADUM4190BRIZ-RL compatible with DOSA modules?
- What is the power consumption of the ADUM4190BRIZ-RL?
The total supply current is less than 7 mA.
- What package type is used for the ADUM4190BRIZ-RL?
The ADUM4190BRIZ-RL is packaged in a 16-lead SOIC with increased creepage.
- Does the ADUM4190BRIZ-RL support defense and aerospace applications?
The ADUM4190-EP model, which is a variant of the ADUM4190, supports defense and aerospace applications.
