The DS1812 EconoReset is a 5V power reset chip released by Maxim. It has the characteristics of automatic reset, holding reset, precision temperature compensated voltage reference and voltage sensor.
The DS1812 EconoReset monitors the supply voltage (VCC) and provides an active‑high push‑pull reset output. When the supply falls out of tolerance, the RST pin is asserted, and after power returns the reset stays active for about 150 ms to allow the processor and supply to stabilize.
The datasheet lists absolute‑maximum ratings, recommended operating conditions, and detailed electrical characteristics such as supply voltage range, output current limits, and VCC trip point values, along with timing diagrams for power‑up and power‑down sequences.
| Operating Temperature | -40°C to +85°C |
|---|---|
| Supply Voltage (VCC) | 0.0 V min, 5.5 V typ, 1 V max |
| Reset Active Time (tRST) | 150 ms (typical) |
| Output Current @ 0.4 V (IOL) | +10 mA |
| VCC Trip Point (typical) | 4.62 V |
| Output Type | Active high push‑pull |
The reset signal remains active for approximately 150 ms to let the supply and processor stabilize.
It provides an active‑high push‑pull output.
The device operates from –40 °C to +85 °C.