PTPSI3100QDVXRQ1

Overview

The PTPSI3100QDVXRQ1 is an automotive reinforced isolated switch driver from Texas Instruments, designed to form a complete isolated solid-state relay when combined with an external power switch. It features a 15.8V gate drive voltage and provides peak source and sink currents of 1.5A and 2.5A respectively. The device operates on a nominal 5V supply rail (VDDM) and includes auxiliary power capabilities up to 25mW for external circuits. It offers 5kV RMS reinforced isolation and integrates dual-channel high-speed comparators with a ±1.5% voltage reference. The component supports functional safety applications and operates within a temperature range of -40°C to +125°C.

Feature Summary

• Provides integrated isolated switching capability without requiring a secondary isolated power supply
• Features 5kV RMS reinforced isolation suitable for automotive safety standards
• Includes auxiliary 5V power output for external monitoring or sensing circuits
• Integrates dual-channel high-speed comparators with internal voltage reference

Applications

• Solid-state relays
• Battery management systems
• On-board chargers
• Hybrid, electric, and powertrain systems
• Building automation

Procurement Notes

Verify the specific suffix 'Q1' confirms AEC-Q100 qualification for automotive use. Confirm the package type matches the design requirements, as variations exist between standard and power switch integrated versions. Ensure the ordering part number aligns with the required isolation rating and pinout configuration. Check for any specific marking codes or date lot codes if traceability is required for production batches.

Selection Notes

Select this component when a fully integrated isolated gate driver is needed to replace mechanical relays or optocouplers in high-reliability environments. It is suitable for designs requiring galvanic isolation between control and power stages without complex transformer-based secondary supplies. Consider the 1.5A/2.5A current drive capabilities against the external MOSFET gate charge requirements. Verify that the system voltage levels are compatible with the 5V logic interface and 17V gate drive output.

Part Context

This part belongs to the TPSI3100 family of isolated switch drivers. It is functionally similar to the TPSI3100-Q1 but may differ in packaging or specific integration level. The family is designed to simplify isolated power switching by combining the driver and isolation barrier into a single compact package. It serves as a modern alternative to traditional discrete isolation solutions in automotive and industrial applications.

Replacement Considerations

Direct substitutes include the TPSI3100-Q1 series components. Verify compatibility regarding the specific package variant (e.g., DVX vs. other suffixes) and ensure the replacement maintains the same 5kV RMS isolation rating and AEC-Q100 qualification status for automotive deployment.