Overview
The LTM2810IY-I#PBF is a galvanic digital µModule (micromodule) isolator produced by Analog Devices Inc. This device is designed to provide complete isolation between different logic interfaces, making it ideal for systems with different ground potentials. It operates without the need for external components, simplifying the design and integration process. The LTM2810IY-I#PBF supports both SPI and I2C communication protocols, with the specific model (IY-I#PBF) being compatible with I2C master mode only.
Key Specifications
| Parameter | Value |
|---|---|
| Isolation Voltage | 7.5 kVRMS |
| Logic Supply Voltage | 3V to 5.5V |
| Isolated Side LDO Input Voltage | 3.6V to 38V |
| Operating Temperature Range | 0°C to 70°C |
| Package Type | 36-Lead BGA (22mm × 6.25mm × 2.06mm) |
| Communication Protocol | I2C (Master Mode Only) |
| Output High Resistance | 40 Ω |
| Output Low Resistance | 40 Ω |
Key Features
- No external components required for operation.
- Individual 3V to 5.5V supplies for each side of the digital isolator.
- Separate logic supply pins allowing easy interfacing with different logic levels from 1.62V to 5.5V.
- Integrated transformer driver on the logic side and an LDO on the isolated side to regulate the rectified transformer output.
- Coupled inductors providing 7500VRMS of isolation between the input and output logic interface.
- Bidirectional I2C data pins with internal biasing to avoid the need for external pull-up devices.
Applications
The LTM2810IY-I#PBF is suitable for various applications requiring galvanic isolation, including:
- Industrial control systems with different ground potentials.
- Medical devices needing isolation for safety and compliance.
- Automotive systems requiring robust isolation against electrical noise and surges.
- Telecommunication equipment where isolation is crucial for signal integrity.
Q & A
- What is the primary function of the LTM2810IY-I#PBF?
The primary function is to provide galvanic isolation between different logic interfaces. - What communication protocols does the LTM2810IY-I#PBF support?
The LTM2810IY-I#PBF supports I2C communication in master mode only. - What is the isolation voltage rating of the LTM2810IY-I#PBF?
The isolation voltage rating is 7.5 kVRMS. - What is the operating temperature range of the LTM2810IY-I#PBF?
The operating temperature range is 0°C to 70°C. - Does the LTM2810IY-I#PBF require external components for operation?
No, it does not require external components for operation. - What is the logic supply voltage range for the LTM2810IY-I#PBF?
The logic supply voltage range is 3V to 5.5V. - What type of package does the LTM2810IY-I#PBF come in?
The LTM2810IY-I#PBF comes in a 36-Lead BGA package. - How does the LTM2810IY-I#PBF handle I2C communication failures?
In case of an isolation communication failure, the outputs default to a high state. - What is the purpose of the integrated LDO on the isolated side?
The integrated LDO regulates the rectified transformer output, nominally providing 5V. - Can the LTM2810IY-I#PBF be used in medical devices?
Yes, it can be used in medical devices due to its isolation capabilities, which are crucial for safety and compliance.
