TPS3305-33DGNR

Supervisors Overview

The TPS3305-33DGNR is a dual processor supervisor integrated circuit manufactured by Texas Instruments. It monitors two independent voltage rails with threshold voltages of 3.3 V and 5 V. The device features a manual reset input, an active watchdog timer, and push-pull outputs that are configurable as active high or active low. It operates within a supply voltage range up to 6 V and provides a reset delay time of 200 ms. The component is housed in an MSOP-PowerPad-8 package and supports surface mount installation.

Supervisors Feature Summary

• Dual-channel voltage supervision for independent power rails
• Configurable active high or active low push-pull outputs
• Integrated manual reset input capability
• Built-in watchdog timer function

Supervisors Applications

• Dual power rail monitoring in embedded systems
• Processor system supervision in industrial control units
• Voltage oversight in telecommunications equipment
• Power management in portable electronic devices

Supervisors Procurement Notes

Verify the specific suffix DGNR indicates tape and reel packaging when sourcing. Confirm the manufacturer part number matches Texas Instruments specifications exactly. Ensure the order quantity aligns with standard reel sizes provided by authorized distributors. Check RoHS compliance status if required for specific manufacturing standards. Validate the package type against design constraints before finalizing procurement.

Supervisors Selection Notes

Select this component when dual voltage monitoring is required with configurable output logic levels. Consider the 200 ms reset delay and watchdog functionality for robust system recovery. Evaluate the MSOP-PowerPad-8 package size against available PCB space. Verify that the monitored voltage thresholds of 3.3 V and 5 V match the target power rails. Assess the operating temperature range requirements for the intended application environment.

Supervisors Part Context

This part belongs to the TPS3305 series of dual processor supervisors from Texas Instruments. It is designed to provide reliable power management oversight for complex digital systems. The series includes variants with different threshold voltages and package options. The DGNR suffix specifically denotes the MSOP-PowerPad-8 package configuration with reel packaging for automated assembly processes.

Supervisors Replacement Considerations

Direct substitutes include TPS3305-33DGNG4 and TPS3305-33DGN. These parts share identical electrical characteristics and pin configurations. Verify package compatibility and lead marking differences when substituting. Cross-reference datasheets to ensure functional equivalence in the target application.