Maxim Integrated MAX6420UK29+T Multi-Voltage Supervisor, 2 channels, active-low open-drain reset, 2.925V fixed threshold + adjustable second channel, adjustable/selectable reset timeout, SOT-23-5 package, -40°C to 125°C operating range.
| Parameter | Value |
|---|---|
| Type | Multi-Voltage Supervisor |
| Mounting | Surface Mount |
| Voltage - threshold | 2.925V, Adj |
| Number of voltages monitored | 2 |
| Operating temperature | -40°C ~ 125°C (TA) |
| Reset | Active Low |
| Output | Open Drain or Open Collector |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Reset timeout | Adjustable/Selectable |
| Case | SC-74A, SOT-753 |
The reset output is open-drain, meaning it can be wire-ORed with other reset sources on the same line. Reset timeout is adjustable via an external capacitor, giving the designer control over the power-up delay.
The open-drain output can drive a pull-up resistor to various logic voltages.
The part is ROHS3 compliant.
The reset timeout is adjustable/selectable via an external capacitor on the CT pin. There is no fixed factory timeout — the designer sets the delay to match the power-up sequence of the downstream device.
The reset output is active low. It pulls low when a monitored voltage falls below its threshold and releases high after the timeout period once all rails are valid.