Overview
The LSF0102DCUR is a dual-channel auto-bidirectional multi-voltage level translator produced by Texas Instruments. This device is designed to provide bidirectional voltage translation without the need for a direction pin, simplifying system design and minimizing system effort. It supports various voltage levels and is compatible with multiple communication protocols such as PMBus, I2C, SMBus, MDIO, and SDIO.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package Type | VSSOP (8-pin) | 2mm × 3.1mm |
| Operating Temperature Range | -40°C to 125°C | |
| Translation Speed | Up to 100MHz up translation, greater than 100MHz down translation at ≤ 30pF capacitive load | |
| Capacitive Load Support | Up to 50pF | |
| Voltage Tolerance | 5V tolerance on I/O port | |
| Propagation Delay (tPLH/tPHL) | Typically 1.1ns to 1.3ns depending on load capacitance |
Key Features
- Provides bidirectional voltage translation without the need for a direction pin.
- Supports up to 100MHz up translation and greater than 100MHz down translation at ≤ 30pF capacitive load.
- Compatible with TTL levels in industrial and telecom applications due to 5V tolerance on I/O ports.
- Flexible voltage translation levels.
- Low propagation delay times (typically 1.1ns to 1.3ns).
Applications
- Enterprise systems.
- Communications equipment.
- Personal electronics.
- Industrial applications.
- Telecom interfaces (MDIO or SDIO).
Q & A
- What is the primary function of the LSF0102DCUR?
The primary function is to provide bidirectional voltage translation without the need for a direction pin.
- What are the supported translation speeds?
Up to 100MHz up translation and greater than 100MHz down translation at ≤ 30pF capacitive load.
- What is the operating temperature range of the LSF0102DCUR?
-40°C to 125°C.
- What types of packages are available for the LSF0102DCUR?
VSSOP (8-pin), among others like DQE (X2SON), YZT (DSBGA), and DCT (SM8).
- Is the LSF0102DCUR compatible with TTL levels?
- What are some common applications of the LSF0102DCUR?
Enterprise systems, communications equipment, personal electronics, industrial applications, and telecom interfaces.
- What is the typical propagation delay time for the LSF0102DCUR?
Typically 1.1ns to 1.3ns depending on the load capacitance.
- Can the LSF0102DCUR handle different capacitive loads?
- What should be considered when designing with the LSF0102DCUR regarding the EN pin?
It is recommended not to drive the EN pin directly with a push-pull output device, and ensure the voltage sources can handle the current flow during normal operation.
- Where can I find detailed design procedures for the LSF0102DCUR?
Detailed design procedures can be found in the datasheet and additional resources like the 'Understanding the Bias Circuit for the LSF Family' video.
