TPIC6B595DWR

Overview

The TPIC6B595DWR is a monolithic high-voltage, medium-current power 8-bit shift register designed for systems requiring relatively high load power. It features an 8-bit serial-in parallel-out shift register and an 8-bit D-type storage register. The device includes built-in voltage clamping at the output terminals for inductive transient protection. It operates with a supply voltage range of 4.5 V to 5.5 V and supports a wide operating temperature range from -40°C to +125°C. The outputs are low-side open-drain DMOS transistors rated for 50 V with a continuous sink current capability of 150 mA per channel.

Feature Summary

• Integrated voltage clamping on output terminals provides protection against inductive transients generated by connected loads.
• Low-side open-drain DMOS transistor outputs enable direct driving of high-voltage and medium-current loads without external drivers.
• Serial data input allows cascading of multiple devices through a dedicated serial output pin for expanded I/O control.
• Independent clock inputs for shift register and storage registers allow precise timing control over data latching and output updates.

Applications

• Driving relays in industrial control panels
• Actuating solenoids in automation equipment
• Powering other medium-current or high-voltage loads in embedded systems

Procurement Notes

Verify the specific suffix 'DWR' corresponds to the SOIC-20 tape-and-reel packaging configuration. Confirm RoHS compliance status if required for your assembly process. Ensure the ordering part number matches the exact Texas Instruments designation to avoid confusion with similar variants like the TPIC6B595DWG4 or through-hole versions. Check for any recent product change notifications regarding manufacturing location or material composition changes.

Selection Notes

Select this component when designing circuits that require shifting serial data to drive multiple high-side or low-side loads directly. It is suitable for applications needing integrated transient protection to simplify PCB layout. Consider the 150 mA per-channel limit and thermal dissipation requirements in the SOIC-20 package. Verify that the 50 V output rating meets the maximum voltage stress of the intended load. Evaluate the need for cascading capabilities if more than eight channels are required.

Part Context

This device belongs to the TPIC6B series of power shift registers from Texas Instruments. It shares functional similarities with standard logic shift registers but integrates high-power DMOS output stages. The 'DWR' suffix indicates a surface-mount SOIC-20 package supplied in a reel format. It serves as a bridge between low-voltage logic controllers and higher-power electromechanical actuators.

Replacement Considerations

The TPIC6B595DWG4 is a lead-free variant of the same device in the same SOIC-20 package. Other members of the TPIC family, such as the TPIC6A595 or TPIC6595, offer different pin counts or slight electrical variations and may serve as alternatives depending on board space and specific current requirements.