Overview
The ADuM4190SRIZ-RL is an isolated error amplifier developed by Analog Devices Inc., utilizing their proprietary 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 ADuM4190 is stable over a wide temperature range of −40°C to +125°C and features a high accuracy 1.225 V reference voltage, making it ideal for various power supply applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Temperature Range | −40°C | +125°C | ||
| Isolation Voltage | 5 kV rms | |||
| Supply Voltage Range (VDD1 and VDD2) | 3.0 V | 20 V | ||
| Output -3 dB Bandwidth | 400 kHz | |||
| Reference Voltage | 1.225 V | |||
| Supply Current (IDD1) | 1.4 mA | 2.0 mA | ||
| Supply Current (IDD2) | 2.9 mA | 5.0 mA | ||
| Package Type | 16-Lead SOIC |
Key Features
- Stable over time and temperature with 0.5% initial accuracy and 1% accuracy over the full temperature range.
- Wideband operational amplifier for various power supply loop compensation techniques.
- Fast enough to react to fast transient and overcurrent conditions.
- Compatible with Type II or Type III compensation networks and DOSA-compatible modules.
- Low power operation with total current consumption of less than 7 mA.
- High isolation voltage rating of 5 kV rms reinforced.
Applications
- Linear feedback power supplies.
- Inverters.
- Uninterruptible power supplies (UPS).
- Voltage monitors.
- DOSA-compatible modules.
Q & A
- What is the primary function of the ADuM4190SRIZ-RL? The ADuM4190SRIZ-RL is an isolated error amplifier designed for use in linear feedback power supplies.
- What is the temperature range of the ADuM4190SRIZ-RL? The component operates over a temperature range of −40°C to +125°C.
- What is the isolation voltage rating of the ADuM4190SRIZ-RL? The isolation voltage rating is 5 kV rms reinforced.
- What is the reference voltage provided by the ADuM4190SRIZ-RL? The component includes a high accuracy 1.225 V reference voltage.
- What are the typical applications of the ADuM4190SRIZ-RL? Typical applications include linear feedback power supplies, inverters, uninterruptible power supplies (UPS), and voltage monitors.
- What is the package type of the ADuM4190SRIZ-RL? The component is packaged in a 16-Lead SOIC package.
- How does the ADuM4190SRIZ-RL compare to optocoupler-based solutions? The ADuM4190SRIZ-RL offers a stable transfer function 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 ADuM4190SRIZ-RL? The output -3 dB bandwidth is typically 400 kHz.
- Is the ADuM4190SRIZ-RL compatible with DOSA-compatible modules? Yes, it is compatible with DOSA-compatible modules.
- What is the total supply current consumption of the ADuM4190SRIZ-RL? The total supply current consumption is less than 7 mA.
