Overview
The ADuM5028-3BRIZ-RL is an isoPower, integrated, isolated dc-to-dc converter produced by Analog Devices Inc. This component utilizes Analog Devices' iCoupler technology to provide regulated, isolated power. It is designed to eliminate the need for custom isolated dc-to-dc converter designs in applications up to 500 mW. The ADuM5028 is available in a space-saving, 8-lead, wide body SOIC package, making it ideal for applications where board space is limited.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|---|
| DC-TO-DC CONVERTER SUPPLY Setpoint | VISO | 3.135 | 3.3 | 3.465 | V | IISO = 10 mA |
| Line Regulation | VISO (LINE) | 2 | mV/V | IISO = 50 mA, VDDP = 4.5 V to 5.5 V | ||
| Load Regulation | VISO (LOAD) | 5% | IISO = 10 mA to 90 mA | |||
| Output Ripple | VISO (RIP) | 50 mV p-p | 20 MHz bandwidth, CBO = 0.1 µF||10 µF, IISO = 90 mA | |||
| Output Noise | VISO (NOISE) | 130 mV p-p | CBO = 0.1 µF||10 µF, IISO = 90 mA | |||
| Switching Frequency | fOSC | 180 | MHz | |||
| PWM Frequency | fPWM | 625 | kHz | |||
| Output Supply Current | IISO (MAX) | 70 mA | 3.0 V < VISO < 3.465 V | |||
| VDDP Supply Current No VISO Load | IDDP (Q) | 15 | mA | No VISO load | ||
| VDDP Supply Current Full VISO Load | IDDP (MAX) | 225 mA | Full VISO load | |||
| Thermal Shutdown Shutdown Temperature | 154 | °C | ||||
| Thermal Hysteresis | 10 | °C |
Key Features
- Integrated Isolation: The ADuM5028 uses iCoupler technology to provide isolated power, eliminating the need for external transformers or optocouplers.
- Regulated Output: Offers regulated output voltages with tight line and load regulation.
- Low Emissions: Meets CISPR22 Class B limits at full load on a 2-layer PCB with ferrites.
- Compact Package: Available in an 8-lead, wide body SOIC package, ideal for space-constrained applications.
- Thermal Protection: Includes thermal shutdown and hysteresis to prevent overheating.
- High Efficiency: Achieves efficiency of up to 33% at maximum output current.
Applications
- Industrial Control Systems: Suitable for use in industrial automation, process control, and monitoring systems.
- Medical Devices: Can be used in medical devices requiring isolated power supplies.
- Automotive Systems: Applicable in automotive systems that need isolated power for various modules.
- Telecommunications: Useful in telecommunications equipment for isolated power supply needs.
- Consumer Electronics: Can be integrated into consumer electronics requiring isolated power supplies.
Q & A
- What is the ADuM5028-3BRIZ-RL used for? The ADuM5028-3BRIZ-RL is an integrated, isolated dc-to-dc converter used to provide regulated, isolated power in various applications.
- What is the typical output voltage of the ADuM5028-3BRIZ-RL? The typical output voltage is 3.3 V.
- What is the maximum output current of the ADuM5028-3BRIZ-RL? The maximum output current is 70 mA.
- What is the switching frequency of the ADuM5028-3BRIZ-RL? The switching frequency is 180 MHz.
- Does the ADuM5028-3BRIZ-RL have thermal protection? Yes, it includes thermal shutdown and hysteresis to prevent overheating.
- What is the package type of the ADuM5028-3BRIZ-RL? It is available in an 8-lead, wide body SOIC package.
- Is the ADuM5028-3BRIZ-RL compliant with any specific emissions standards? Yes, it meets CISPR22 Class B limits at full load on a 2-layer PCB with ferrites.
- What is the efficiency of the ADuM5028-3BRIZ-RL at maximum output current? The efficiency is up to 33% at maximum output current.
- Can the ADuM5028-3BRIZ-RL be used in medical devices? Yes, it can be used in medical devices requiring isolated power supplies.
- What is the thermal shutdown temperature of the ADuM5028-3BRIZ-RL? The thermal shutdown temperature is 154°C.
