TPT29539Q-TS5R-S

Overview

The TPT29539Q is an automotive-grade I2C to 16-bit GPIO expander with interrupt and reset capabilities. It operates within a supply voltage range of 1.65 V to 3.6 V, supporting interconnection with 1.8-V microcontrollers. The device features a 400-kHz Fast-mode I2C interface, open-drain active LOW interrupt output, and configurable slave addressing via two hardware pins. It includes internal power-on reset and hardware reset functionality. The component is characterized for operation from -40°C to +125°C and is housed in a TSSOP24 package.

Feature Summary

• AEC-Q100 qualified for Automotive Grade 1 applications
• Functional safety capable with documentation available for system design
• Low standby current consumption at typical operating voltages
• 5-V tolerant I/Os with robust ESD protection exceeding ±4000-V HBM

Applications

• Automotive ADAS and Infotainment systems
• Automotive Body Electronics and EV/HEV applications
• Servers, Storages, Routers, and Telecom Switching Equipment
• Personal Computers

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm package type and tape-and-reel specifications. Ensure that the selected variant matches the required thermal performance and pin configuration for your PCB layout. Cross-reference the part number with authorized distributors to confirm availability and authenticity before placing orders.

Selection Notes

Select this component when a 16-bit GPIO expansion solution is required for I2C-based systems operating between 1.65 V and 3.6 V. It is suitable for designs needing low standby current and high noise immunity. Consider the TSSOP24 package dimensions and the need for external pull-up resistors on SDA, SCL, and INT lines during the schematic design phase.

Part Context

The TPT29539Q belongs to the TPT series of automotive interface ICs manufactured by 3PEAK. It serves as a specialized GPIO expander designed to extend microcontroller I/O capabilities in resource-constrained environments. The device integrates interrupt logic and reset functions, making it distinct from basic expanders by providing direct notification of input state changes to the host controller.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the verified source material.