Key facts
- Brand
- Maxim
- Model
- MAX709
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-03
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Maxim MAX709 Power‑Supply Monitor Datasheet
The MAX709 provides system reset during power‑up, power‑down, and brown‑out conditions. When the supply voltage (Voc) falls below a selectable reset threshold, the RESET output goes low and holds the processor in reset for at least 140 ms after Voc rises above the threshold. The device operates down to 1 V and is immune to short negative‑going transients, making it suitable for low‑component‑count processor systems.
The monitor is offered in 8‑pin DIP, uMAX and SO packages and supports a wide temperature range (‑40 °C to +85 °C). Electrical specifications include ultra‑low supply currents (35 pA to 65 pA) and selectable reset thresholds (2.55 V to 4.65 V). Typical application circuits add a bypass capacitor on the supply pin and optional pull‑down resistors to ensure a valid RESET output at low voltages.
Maxim MAX709 specifications
| Operating Temperature Range | -40 °C to +85 °C |
|---|---|
| Supply Current (MAX709R/S/T) | 35 pA |
| Minimum Power‑On Reset Delay | 140 ms |
| Available Packages | 8‑Pin DIP, uMAX, SO |
All Maxim MAX709 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the minimum power‑on reset delay for the MAX709?
The device guarantees a minimum power‑on reset delay of 140 ms.
How low can the supply voltage go while the RESET output remains valid?
The RESET output is guaranteed to be in the correct state down to 1 V.
What is the minimum reset delay of the MAX709?
The reset delay is at least 140 ms.
Which packages are available for the MAX709?
The device is offered in 8‑pin DIP, uMAX, and SO packages.