TPSI3050QDWZRQ1

Overview

The TPSI3050QDWZRQ1 is an automotive reinforced isolated switch driver with an integrated 10-V gate supply. It features a single channel in an SO-MOD-8 package, operating between -40°C and +125°C. Key electrical parameters include 3000 Vrms isolation voltage, 37 mA supply current, and output currents of 1.5 A or 3 A. The device delivers a 10.2 V output voltage with rise/fall times of 6 ns/5 ns and propagation delays up to 4.5 us. Power dissipation is rated at 350 mW, with on-resistance values of 1.7 Ohms or 2.5 Ohms.

Feature Summary

• Integrates a 10-V gate supply, eliminating the need for an isolated secondary power source
• Provides automotive reinforced isolation for driving external power transistors or SCRs
• Delivers high-speed switching capabilities with low propagation delay

Applications

• Electric vehicle battery management systems
• High-voltage solid-state relay implementations
• Industrial motor control circuits requiring galvanic isolation

Procurement Notes

Verify the specific suffix variants (e.g., Rds(on) ratings) against the official Texas Instruments datasheet before procurement. Ensure the selected part number matches the required on-resistance and output current specifications for the target application. Confirm automotive qualification status and RoHS compliance through authorized distributors to guarantee component authenticity and traceability.

Selection Notes

Select this component when designing systems requiring robust galvanic isolation without separate isolated power supplies. Consider the integrated 10-V gate drive for simplified board layouts. Evaluate the thermal performance given the 350 mW power dissipation limit in the SO-MOD-8 package. Ensure the input signal levels are compatible with the driver logic thresholds for reliable operation in automotive environments.

Part Context

This device belongs to the TPSI3050 family of solid-state relays from Texas Instruments. These components integrate power and signal transfer in a single chip, addressing the increasing voltage requirements in modern electric vehicles. The series provides a compact solution for high-voltage hazards, replacing traditional mechanical relays with faster, more reliable electronic switching capabilities.

Replacement Considerations

Consult the TI TPSI3050-Q1 datasheet for direct pin-compatible alternatives within the same family. Verify that any substitute maintains the 3000 Vrms isolation rating and automotive reinforcement standards. Cross-reference package dimensions and thermal characteristics to ensure mechanical fit.