The Maxim MAX6834FXRD3 is a single-channel voltage supervisor — a simple reset/power-on reset IC that monitors a single supply rail and holds the reset output active-low until the supply has been above the 1.665V threshold for at least 140 ms. The open-drain output lets you wire-OR it with other reset signals or pull it up to a different voltage rail. It is designed for systems that need a clean, glitch-free power-on reset for a single low-voltage core rail — think MCU, FPGA, or SoC power sequencing in industrial controls, telecom line cards, or sensor nodes where the processor must not start until the supply is stable.
MAX6834FXRD3 Simple Reset/Power-On Reset IC
MPNMAX6834FXRD3
End of Life
Maxim MAX6834FXRD3 Simple Reset/Power-On Reset, Active Low, Open Drain, 140ms Minimum Reset Timeout, 1.665V Threshold, SC-70-3, -40°C to 85°C.
$4.8Ref. price · indicative, final on quote
PackagingSC-70, SOT-323
RoHSRoHS non-compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Simple Reset/Power-On Reset |
| Mounting | Surface Mount |
| Voltage - threshold | 1.665V |
| Number of voltages monitored | 1 |
| Operating temperature | -40°C ~ 85°C (TA) |
| Reset | Active Low |
| Output | Open Drain or Open Collector |
| Package | Bulk |
| Reset timeout | 140ms Minimum |
| Case | SC-70, SOT-323 |
Product details
Frequently asked questions
What is the closest pin-compatible alternative to the MAX6834FXRD3?
No pin-compatible alternate is listed in the available records. The MAX6834 family includes multiple threshold options (e.g., 1.575V, 1.8V, 2.2V) in the same SC-70-3 footprint — if your rail voltage allows a different threshold, another MAX6834 variant may drop in without a layout change. Confirm the exact threshold and output type before substituting.