Key facts
- Brand
- Maxim
- Model
- MAX690A
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-04
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Maxim MAX690A/MAX692A/MAX802L/MAX802M/MAX805L Datasheet
The MAX690A, MAX692A, MAX802L, MAX802M and MAX805L are microprocessor supervisory circuits that provide reset, battery‑backup switching, watchdog timer and power‑fail detection functions. They are offered in 8‑pin DIP and SO packages and are pin‑compatible with earlier Maxim parts.
Key features include precise voltage monitoring (4.65 V or 4.40 V thresholds), a 200 ms reset pulse, a 1.6 s watchdog timeout, and ultra‑low quiescent current in battery‑backup mode. The document provides electrical characteristics, typical operating circuits, pin descriptions, and guidance for using backup power sources such as SuperCaps.
Maxim MAX690A specifications
| Reset voltage threshold (MAX690A/MAX802L/MAX805L) | 4.65 V |
|---|---|
| Reset voltage threshold (MAX692A/MAX802M) | 4.40 V |
| Watchdog timeout | 1.6 s |
Source: Maxim MAX690A/MAX692A/MAX802L/MAX802M/MAX805L Datasheet
All Maxim MAX690A documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the reset voltage threshold for the MAX690A?
The reset threshold for the MAX690A is 4.65 V.
From: Maxim MAX690A/MAX692A/MAX802L/MAX802M/MAX805L Datasheet
What is the watchdog timeout period?
The watchdog timer times out after 1.6 seconds.
From: Maxim MAX690A/MAX692A/MAX802L/MAX802M/MAX805L Datasheet
What is the reset voltage threshold for the MAX690A?
The MAX690A resets when the supply voltage falls below 4.65 V.
From: Maxim MAX690A/MAX692A/MAX802L/MAX802M/MAX805L Datasheet
How long does the reset pulse last?
The reset pulse width is specified as 200 ms.
From: Maxim MAX690A/MAX692A/MAX802L/MAX802M/MAX805L Datasheet