PCA9515APWG4

Signal Buffers, Repeaters, Splitters Overview

The PCA9515APWG4 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 two identical open-drain buffer circuits designed to extend I2C systems without degrading performance. It accommodates standard mode and fast mode I2C devices, supporting multiple masters, arbitration, and clock stretching across the repeater. The component is housed in an 8-pin TSSOP package and functions reliably within an operating temperature range of -40°C to +85°C.

Signal Buffers, Repeaters, Splitters Feature Summary

• Dual-channel bidirectional buffering for I2C and SMBus compatibility
• Supports mixed-mode signal operation with 5.5V tolerant inputs
• Enables lockup-free operation and hot swap capabilities

Signal Buffers, Repeaters, Splitters Applications

• Extending I2C bus distance in embedded systems
• Connecting multiple masters on a single I2C bus
• Isolating bus segments in mixed-voltage environments

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific suffix 'PWG4' against the manufacturer's current datasheet to confirm package type and RoHS compliance status. Confirm lifecycle status as components may be marked Not Recommended for New Designs (NRND). Ensure sourcing channels provide valid traceability documentation for industrial or automotive applications if required.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when extending I2C bus capacitance limits or isolating bus faults is required. It is suitable for systems requiring bidirectional translation between different voltage domains while maintaining I2C protocol integrity. Consider thermal management and board space constraints associated with the TSSOP-8 package during layout planning.

Signal Buffers, Repeaters, Splitters Part Context

This part belongs to the Texas Instruments PCA95xx family of interface ICs, which includes repeaters, switches, and expanders. The PCA9515A series specifically addresses the need for robust I2C bus extension and isolation. It complements other family members like the PCA954x multiplexers by providing simple buffering rather than complex switching logic.

Signal Buffers, Repeaters, Splitters Replacement Considerations

The PCA9515ADGKR is a pin-compatible alternative in the VSSOP package. Verify electrical parameters and package dimensions before substitution. Other variants in the PCA9515 family may offer different speed grades or packaging options.