TPIC6A259DWRG4

Overview

The TPIC6A259DWRG4 is a power logic 8-bit addressable latch featuring open-drain DMOS outputs. It operates with a logic supply voltage (VCC) range of 4.5 V to 5.5 V and supports an operating case temperature range from -40°C to 125°C. The device provides eight independent outputs capable of switching up to 50 V, with each output rated for a continuous current of 350 mA at 25°C. Key electrical characteristics include a typical low on-state resistance (rDS(on)) of 1 Ω and single-pulse avalanche energy capability of 75 mJ. Propagation delays are specified at 30 ns (high-to-low) and 125 ns (low-to-high).

Feature Summary

• Integrates eight independently addressable open-drain DMOS outputs controlled by three select inputs.
• Features internal chopping current-limiting circuits to prevent damage during short-circuit conditions.
• Supports four distinct operational modes: addressable latch, memory, 8-line demultiplexer, and clear.
• Includes separate power ground (PGND) and logic ground (LGND) terminals to minimize parasitic impedance.

Applications

• General-purpose storage applications in digital systems
• Working registers and serial-holding registers
• Decoders or demultiplexers

Procurement Notes

Verify the specific package variant against the datasheet, as the TPIC6A259 family includes both surface-mount DW packages and through-hole NE packages. Confirm that the G4 suffix indicates lead-free construction and RoHS compliance. Ensure the selected component matches the required thermal dissipation ratings for the intended ambient temperature conditions.

Selection Notes

Select this component when designing circuits requiring high-voltage switching with integrated overcurrent protection. The wide-body SOIC package offers improved thermal performance compared to standard variants. Consider the separate PGND and LGND requirements for proper grounding strategies to reduce crosstalk between logic and load circuits.

Part Context

This device belongs to the Texas Instruments TPIC6A series of power logic addressable latches. It is designed to interface standard logic inputs with higher voltage and current loads using DMOS technology. The part is characterized for industrial temperature ranges and is suitable for applications demanding robust output control with built-in safety features.

Replacement Considerations

TPIC6A259DW

FAQ

How does the device protect against short circuits?

Each open-drain DMOS transistor features an independent chopping current-limiting circuit that activates to prevent damage in the event of a short circuit.

What is the function of the separate PGND and LGND terminals?

Separate power ground (PGND) and logic ground (LGND) terminals facilitate maximum system flexibility. They must be externally connected to their respective grounds, with a single-point connection recommended to reduce crosstalk.