TPIC6273N

Overview

The TPIC6273N is an octal D-type latch manufactured by Texas Instruments, designed for power logic applications. It features eight outputs capable of sourcing up to 150 mA and supporting load voltages up to 50 V. The device operates on a single supply voltage ranging from 4.5 V to 5.5 V with a typical supply current of 150 μA. It utilizes positive edge-triggered clocking with a propagation delay of 150 ns. Packaged in a 20-pin PDIP through-hole format, it functions as an inverting latch within a -40 °C to 125 °C operating temperature range.

Feature Summary

• Provides high-current drive capability suitable for direct control of loads such as lamps or relays without external buffering.
• Integrates robust protection mechanisms including over-temperature shutdown and short-circuit current limiting to ensure operational reliability under fault conditions.
• Features a transparent latch architecture that allows data to pass directly to the outputs when the enable signal is active.

Applications

• Direct driving of incandescent lamps and indicator lights
• Control of relay coils in industrial automation systems
• Interface circuits for high-voltage load switching

Procurement Notes

Verify the specific suffix 'N' corresponds to the 20-pin PDIP package configuration. Confirm the manufacturer is Texas Instruments, as other vendors may produce similar part numbers with different electrical characteristics. Ensure the component meets the required operating temperature range for the intended environment.

Selection Notes

Select this component when an octal latch requires significant output current drive capabilities exceeding standard logic families. It is appropriate for designs needing integrated protection against thermal overload and short circuits while maintaining compatibility with standard TTL/CMOS logic levels.

Part Context

The TPIC6273 belongs to TI's Power Logic family, which combines standard logic functionality with high-power output stages. This series is engineered to simplify system design by reducing the need for external driver transistors or buffer components, thereby minimizing board space and component count in load-switching applications.

Replacement Considerations

The TPIC6B273N is documented as a substitute option. Verify pinout compatibility and electrical specifications before implementation.