TPS3707-33DR

Supervisors Overview

The TPS3707-33DR is a voltage supervisory circuit manufactured by Texas Instruments, designed for processor and power-fail monitoring applications. It features two monitored inputs with an adjustable threshold voltage of 2.93 V and supports manual reset functionality. The device provides active high and active low push-pull outputs, ensuring reliable signal transmission in digital systems. It operates within a maximum supply voltage of 6 V and includes a fixed reset delay time of 200 ms to prevent false triggering during power transitions. The component is housed in an MSOP-PowerPad-8 package, suitable for surface-mount installation, and functions reliably across a temperature range from -40°C to +125°C.

Supervisors Feature Summary

• Dual-input voltage supervision with adjustable threshold detection capabilities
• Simultaneous active high and active low push-pull output configurations
• Integrated manual reset input for system control flexibility
• Fixed 200 ms reset delay to ensure stable power-up sequencing

Supervisors Applications

• Processor power-supply monitoring in embedded systems
• Power-fail signal generation for data protection circuits
• Battery backup switching logic in portable devices
• Watchdog timer interface in microcontroller units

Supervisors Procurement Notes

Verify the exact suffix 'DR' corresponds to the MSOP-PowerPad-8 tape-and-reel packaging configuration. Confirm that the 2.93 V threshold matches the specific design requirement, as other variants may offer different fixed thresholds. Ensure compatibility with the target board's thermal management strategy due to the exposed pad design. Cross-reference the manufacturer's latest datasheet revision to confirm pinout consistency and electrical characteristics before finalizing procurement orders.

Supervisors Selection Notes

Select this component when dual-channel voltage monitoring with flexible output polarity is required. The adjustable threshold allows adaptation to various rail voltages without changing the base part number significantly. Consider the MSOP-PowerPad-8 package for space-constrained designs requiring efficient heat dissipation. Evaluate the 200 ms reset delay against system startup timing requirements to avoid premature initialization errors during brown-out events.

Supervisors Part Context

This device belongs to the TPS370x family of voltage supervisors, which are optimized for low-power consumption and high accuracy in portable and industrial applications. The family typically integrates multiple monitoring channels into compact packages to reduce board space. The TPS3707 variant specifically addresses scenarios needing both high and low active outputs for complex logic interfacing. Its design focuses on reliability in harsh environments, supporting wide operating temperature ranges common in automotive and industrial sectors.

Supervisors Replacement Considerations

Public confirmed substitute part numbers: TPS3707-33DGNR.