Overview
The ADUM5028-3BRIZ is an isoPower®, integrated, isolated dc-to-dc converter from Analog Devices Inc. This device utilizes the iCoupler® technology to provide regulated, isolated power. It is designed to operate below CISPR22 Class B limits at full load on a 2-layer printed circuit board (PCB) with ferrites, making it suitable for applications requiring low electromagnetic interference (EMI). The ADUM5028-3BRIZ eliminates the need to design and build isolated dc-to-dc converters for applications up to 500 mW, offering a small form factor and isolated solution.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Input Voltage | 3V | 3.3V | 3.6V | V | |
| Output Voltage | 3.135V | 3.3V | 3.465V | V | IISO = 10 mA |
| Output Current | 60mA | mA | Minimum output current | ||
| Line Regulation | 2 mV/V | mV/V | IISO = 50 mA, VDDP = 3V to 3.6V | ||
| Load Regulation | 1% | % | IISO = 7 mA to 63 mA | ||
| Output Noise | 130 mV p-p | mV p-p | CBO = 0.1 µF / 10 µF, IISO = 90 mA | ||
| Switching Frequency | 180 MHz | MHz | |||
| PWM Frequency | 625 kHz | kHz | |||
| Operating Temperature | -40°C | 125°C | °C | ||
| Package Style | 8-lead SOIC-IC wide body |
Key Features
- Utilizes iCoupler® technology for magnetic components, providing a small form factor and isolated solution.
- Regulated, isolated power below CISPR22 Class B limits at full load on a 2-layer PCB with ferrites.
- Low EMI emissions.
- Output current up to 60 mA.
- High efficiency with low output noise and ripple.
- Thermal shutdown with a shutdown temperature of 154°C and thermal hysteresis of 10°C.
- Compact 8-lead SOIC-IC wide body package.
Applications
- RS-485/RS-422/CAN transceiver power.
- Power supply start-up bias and gate drives.
- Isolated sensor interfaces.
- Industrial PLCs.
- Any application requiring isolated dc-to-dc conversion up to 500 mW.
Q & A
- What is the ADUM5028-3BRIZ used for?
The ADUM5028-3BRIZ is used as an isolated dc-to-dc converter, providing regulated, isolated power for various applications such as RS-485/RS-422/CAN transceivers, power supply start-up bias, gate drives, isolated sensor interfaces, and industrial PLCs.
- What is the input voltage range for the ADUM5028-3BRIZ?
The input voltage range for the ADUM5028-3BRIZ is from 3V to 3.6V.
- What is the typical output voltage of the ADUM5028-3BRIZ?
The typical output voltage of the ADUM5028-3BRIZ is 3.3V.
- What is the maximum output current of the ADUM5028-3BRIZ?
The maximum output current of the ADUM5028-3BRIZ is 60 mA.
- What is the operating temperature range of the ADUM5028-3BRIZ?
The operating temperature range of the ADUM5028-3BRIZ is from -40°C to 125°C.
- What package style does the ADUM5028-3BRIZ come in?
The ADUM5028-3BRIZ comes in an 8-lead SOIC-IC wide body package.
- What is the switching frequency of the ADUM5028-3BRIZ?
The switching frequency of the ADUM5028-3BRIZ is typically 180 MHz.
- What is the PWM frequency of the ADUM5028-3BRIZ?
The PWM frequency of the ADUM5028-3BRIZ is typically 625 kHz.
- Does the ADUM5028-3BRIZ have thermal shutdown protection?
Yes, the ADUM5028-3BRIZ has thermal shutdown protection with a shutdown temperature of 154°C and thermal hysteresis of 10°C.
- What are the EMI characteristics of the ADUM5028-3BRIZ?
The ADUM5028-3BRIZ is designed to operate below CISPR22 Class B limits at full load on a 2-layer PCB with ferrites, ensuring low EMI emissions.
