TPIC6A259DWG4

Overview

The TPIC6A259DWG4 is an 8-bit addressable latch with open-drain DMOS outputs, designed for general-purpose storage in digital systems. It operates on a 4.5 V to 5.5 V logic supply and supports up to 50 V switching capability. The device features independent chopping current-limiting circuits for short-circuit protection and handles single-pulse avalanche energy of 75 mJ. It provides four distinct function modes: addressable latch, memory, demultiplexer, and clear. Packaged in a thermally enhanced SOIC-24 (DW) format, it operates over a case temperature range of -40°C to 125°C.

Feature Summary

• Provides eight open-drain DMOS outputs capable of handling up to 50 V switching loads.
• Features independent chopping current-limiting circuits to prevent damage during short circuits.
• Supports four selectable operational modes including addressable latching, memory, demultiplexing, and clearing.
• Includes separate power ground (PGND) and logic ground (LGND) terminals to minimize parasitic impedance.

Applications

• Working registers in digital systems
• Serial-holding registers
• Decoders or demultiplexers

Procurement Notes

Verify the specific ordering suffix against the manufacturer's package option addendum to confirm the exact carrier type. The 'DW' designation indicates a surface-mount SOIC package, while 'G4' confirms lead-free and RoHS compliance. Ensure the procurement matches the required tube quantity specifications found in the official packaging data.

Selection Notes

Select this component when designing circuits requiring high-voltage load control with integrated fault protection. The inclusion of separate PGND and LGND pins allows for optimized grounding strategies to reduce crosstalk between logic and power stages. Verify that the thermal management strategy accommodates the specified junction-to-case resistance for the intended operating environment.

Part Context

This part belongs to the TPIC6A259 family of power logic devices manufactured by Texas Instruments. It is characterized for operation across an extended industrial temperature range. The device integrates charge pump circuitry to drive the internal DMOS transistors efficiently. It is available in both dual-in-line and wide-body surface-mount packages to suit various board layout requirements.

Replacement Considerations

The TPIC6A259DWRG4 serves as a tape-and-reel variant of the same functional device. Cross-reference pinouts and electrical characteristics carefully when substituting with other 8-bit addressable latches from different manufacturers.

FAQ

How does the device protect against output short circuits?

Each open-drain DMOS transistor includes an independent chopping current-limiting circuit that activates to prevent damage if a short circuit occurs.

What are the four distinct function modes of the TPIC6A259?

The device can operate as an addressable latch, a memory mode where outputs hold their state, an 8-line demultiplexer, or a clear mode where all outputs go high.