TPIC6273DWRG4

Overview

The TPIC6273DWRG4 is an octal D-type latch manufactured by Texas Instruments, designed for high-current load driving applications. It integrates eight D-type latches with N-channel power outputs capable of sourcing up to 150 mA per channel. The device features a 5 V logic interface compatible with standard CMOS and TTL levels, allowing direct connection to microcontrollers or processors. Key electrical characteristics include a wide operating supply voltage range from 4.5 V to 5.5 V and an output short-circuit protection mechanism. Packaged in a 20-pin TSSOP (DW) format with a green mold compound, it supports surface-mount assembly for compact circuit designs.

Feature Summary

• Integrates eight independent D-type latches with dedicated N-channel power outputs for simultaneous multi-channel control
• Provides high current drive capability of 150 mA per output, suitable for directly powering LEDs, relays, or solenoids
• Features 5 V logic compatibility enabling seamless interfacing with standard digital control systems without level shifting
• Includes built-in thermal shutdown and short-circuit protection to ensure operational reliability under fault conditions

Applications

• LED lighting arrays and indicator panels requiring individual channel control
• Relay driver circuits for industrial automation and switching applications
• Solenoid and valve actuation systems in automotive or consumer appliances
• General-purpose high-side or low-side load switching in embedded systems

Procurement Notes

Verify the complete part number including the RG4 suffix to confirm lead-free and RoHS compliance status as specified by Texas Instruments. Ensure the package type matches the required PCB footprint, specifically the 20-pin TSSOP with exposed pad if applicable. Cross-reference the datasheet revision date to confirm technical specifications align with your design requirements before finalizing procurement orders.

Selection Notes

Select this component when designing circuits that require multiple high-current outputs controlled by low-voltage digital signals. It is appropriate for applications needing integrated latching functionality to maintain state without continuous processor polling. Consider the thermal performance and PCB layout requirements due to the high current density per pin. Compare against similar Power Logic devices if specific pinout variations or alternative protection features are needed.

Part Context

This device belongs to Texas Instruments' Power Logic family, which combines standard logic functions with power output stages. The TPIC6273 series is engineered to simplify interface design between low-power digital controllers and high-power loads. It eliminates the need for external transistors or driver ICs, reducing component count and board space while improving system reliability through integrated protection mechanisms.

Replacement Considerations

The TPIC6273DW is a direct functional equivalent within the same product family. Verify pin compatibility and electrical ratings when substituting. Other octal latches like the SN74HC573 lack the integrated power drivers and must be used with external components.