ADUM1251ARZ-RL7
Digital Isolators
Technical Specifications
| Type | Description |
|---|---|
| Cmti Kvus | 35.0 |
| Working Voltage V | 4.25 V |
| Operating Temp | -40°C ~ +105°C |
| Peak Output Current(sink) | 30mA |
| Type | Description |
|---|---|
| Maximum I2C Clock | 1MHz |
| Clock Direction | Bidirectional |
| Package / Case | SOIC-8 |
Product Introduction
The ADuM1250/ADuM1251 are hot-swappable digital isolators with built-in non-latching bidirectional communication channels, compatible with the I²C interface. This eliminates the need to split I2C signals into separate transmit and receive signals for use with discrete optocouplers.
The ADuM1250 provides two bidirectional channels, supporting a fully isolated I2C interface. The ADuM1251 provides one bidirectional channel and one unidirectional channel, suitable for applications that do not require a bidirectional clock.
Both the ADuM1250 and ADuM1251 incorporate hot-swap circuitry to prevent data corruption when inserting passive cards into an active bus.
These isolators utilize iCoupler chip-scale transformer technology. iCoupler is a magnetic isolation technology that offers superior performance, size, and power consumption compared to optocouplers. The ADuM1250/ADuM1251 integrate iCoupler channels with semiconductor circuitry to implement a fully isolated I2C interface in a compact package.
Features
- Bidirectional I2C communication
- Open-drain interface
- Suitable for hot-swap applications
- 30mA sink current capability
- Operating frequency: 1,000kHz
- Supply voltage/logic level: 3.0V to 5.5V
- 8-pin SOIC package, RoHS compliant
- Operating temperature up to: 125°C
- Qualified for automotive applications
- Safety and regulatory approvals: UL recognition 1-minute 2,500Vrms per UL 1577
- CSA Component Acceptance Notice #5A
- VDE Certificate of Conformity DIN V VDE V 0884-10 (VDE V 0884-10):2006-12, VIORM = 560Vpeak
Applications
- - I2C, SMBus, or PMBus interface isolation - Multi-level I2C interface - Power supply - Networking - Power over Ethernet - Hybrid vehicle battery management
Datasheet
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Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| Type | Details |
|---|---|
| ECCN | EAR99 |
Sourcing Information
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