PCA9515ADGKT

Signal Buffers, Repeaters, Splitters Overview

The PCA9515ADGKT is a dual bidirectional I2C bus and SMBus repeater manufactured by Texas Instruments. It operates within a supply voltage range of 2.3 V to 3.6 V and supports data rates up to 400 kHz. The device features a propagation delay of 45 ns and draws 1 mA of operating current. It provides an output current of 6 mA and has an input capacitance of 7 pF. Designed for surface-mount installation, it is housed in an 8-VSSOP package. The component functions reliably across an extended temperature range from -40°C to +85°C.

Signal Buffers, Repeaters, Splitters Feature Summary

• Dual-channel bidirectional buffering extends I2C and SMBus systems without performance degradation
• Supports mixed-mode signal operation with 5.5V tolerant inputs
• Ensures lockup-free operation while accommodating arbitration and clock stretching

Signal Buffers, Repeaters, Splitters Applications

• Extending I2C bus distance in embedded systems
• SMBus system expansion and signal regeneration
• Mixed-voltage interface bridging between different logic levels

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific suffix against official documentation to confirm package type and temperature grade. Confirm lifecycle status as components may be marked not recommended for new designs. Ensure compatibility with existing PCB footprints and reflow profiles during sourcing.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when dual-channel isolation or extension of I2C/SMBus lines is required. Verify that the 3.6 V maximum supply voltage aligns with the system power rails. Consider the 8-VSSOP package dimensions for board space constraints and thermal management requirements.

Signal Buffers, Repeaters, Splitters Part Context

This part belongs to the PCA9515A series of interface ICs designed for I2C and SMBus applications. It serves as a buffer to extend bus length and isolate loads. The device integrates two identical open-drain buffer circuits to maintain signal integrity across multiple masters and slaves.

Signal Buffers, Repeaters, Splitters Replacement Considerations

PCA9515BDGKR is a direct substitute within the same family offering similar functionality.