Overview
The ADUM2251WARWZ-RL, produced by Analog Devices Inc., is a hot swappable digital isolator designed for bidirectional I2C communication. This component is part of the ADuM2250/ADuM2251 series, which offers non-latching, bidirectional communication channels compatible with I2C interfaces. It is particularly suited for applications requiring galvanic isolation, such as in industrial, automotive, and medical devices. The ADUM2251WARWZ-RL ensures reliable and isolated communication between different parts of a system, enhancing safety and reliability.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Supply/Logic Levels | 3.0 V | - | 5.5 V | V | - |
| Operating Frequency | - | - | 1000 kHz | kHz | - |
| Current Sink Capability | - | - | 30 mA | mA | - |
| Isolation Voltage | - | - | 5000 V rms | V rms | For 1 minute per UL 1577 |
| Package Type | - | - | 16-lead SOIC wide body | - | RW-16 or RI-16-2 package |
| Maximum Junction Temperature | - | - | 105°C | °C | - |
| Input Capacitance | - | - | 4.0 pF | pF | - |
| Input to Output Resistance | 10^12 Ω | - | - | Ω | - |
| Input to Output Capacitance | - | - | 2.2 pF | pF | f = 1 MHz |
Key Features
- Bidirectional I2C communication with open-drain interfaces.
- Suitable for hot swap applications.
- 30 mA current sink capability.
- Operation up to 1000 kHz.
- Supply/logic levels from 3.0 V to 5.5 V.
- Available in 16-lead SOIC wide body package (RW-16) and enhanced creepage version (RI-16-2).
- High temperature operation up to 105°C.
- Safety and regulatory approvals including UL recognition, CSA Component Acceptance Notice 5A, IEC 60601-1, IEC 60950-1, and VDE certificate of conformity.
Applications
- Isolated I2C, SMBus, or PMBus interfaces.
- Multilevel I2C interfaces.
- Power supplies.
- Networking.
- Power over Ethernet (PoE).
- Automotive interfaces (e.g., CAN, Audio, Ethernet).
- Industrial I/O and control systems.
Q & A
- What is the ADUM2251WARWZ-RL used for? The ADUM2251WARWZ-RL is used for bidirectional I2C communication with galvanic isolation, making it suitable for applications requiring isolated communication.
- What are the supply/logic levels of the ADUM2251WARWZ-RL? The supply/logic levels range from 3.0 V to 5.5 V.
- What is the maximum operating frequency of the ADUM2251WARWZ-RL? The maximum operating frequency is 1000 kHz.
- What is the current sink capability of the ADUM2251WARWZ-RL? The current sink capability is 30 mA.
- What are the safety and regulatory approvals for the ADUM2251WARWZ-RL? It has UL recognition, CSA Component Acceptance Notice 5A, IEC 60601-1, IEC 60950-1, and VDE certificate of conformity.
- What package types are available for the ADUM2251WARWZ-RL? It is available in 16-lead SOIC wide body package (RW-16) and enhanced creepage version (RI-16-2).
- What is the maximum junction temperature for the ADUM2251WARWZ-RL? The maximum junction temperature is 105°C.
- Is the ADUM2251WARWZ-RL suitable for automotive applications? Yes, it is qualified for automotive applications.
- Can the ADUM2251WARWZ-RL be used in hot swap applications? Yes, it is suitable for hot swap applications.
- What is the isolation voltage rating of the ADUM2251WARWZ-RL? The isolation voltage rating is 5000 V rms for 1 minute per UL 1577.
