MAX709LEPA+

Supervisors Overview

The MAX709LEPA+ is a power-supply monitor with reset, manufactured by Analog Devices Inc./Maxim Integrated. It provides system reset during power-up, power-down, and brownout conditions. The device features a push-pull active-low output and operates within a supply voltage range up to 5.5V. It includes a minimum power-on reset delay of 140ms and maintains the correct reset state down to 1V. The component is housed in an 8-pin PDIP package and supports through-hole mounting.

Supervisors Feature Summary

• Provides system reset during power-up, power-down, and brownout conditions
• Eliminates external components and adjustments for +5V, +3.3V, or +3V systems
• Immune to short negative VCC transients
• Low supply current consumption

Supervisors Applications

• +5V powered systems
• +3.3V powered systems
• +3V powered systems
• Microprocessor (µP) reset circuits

Supervisors Procurement Notes

Verify end-of-life status before design-in. The MAX709LEPA+ may be discontinued or subject to limited supply. Confirm final availability and lead times directly with authorized distributors or Analog Devices. Ensure RoHS compliance matches project requirements. Review datasheet revisions for any parameter changes prior to procurement.

Supervisors Selection Notes

Select this part for applications requiring precise power-down reset thresholds without external components. Suitable for systems operating at +5V, +3.3V, or +3V. Choose the PDIP package for through-hole assembly needs. Verify that the 140ms minimum reset delay meets system timing requirements. Consider alternative packages like µMAX or SO if space constraints exist.

Supervisors Part Context

The MAX709 series belongs to Maxim Integrated's line of low-cost supervisory circuits. These devices are designed to enhance circuit reliability by eliminating external adjustments. The MAX709LEPA+ specifically targets legacy through-hole designs requiring robust reset functionality for standard logic voltage levels.

Supervisors Replacement Considerations

Check for direct pin-compatible alternatives within the MAX709 family, such as MAX709LCPA+, if PDIP availability is restricted. Verify threshold voltages and reset delays match original specifications when substituting.