Product Summary

The ds1818r-10/tr is an EconoReset. The ds1818r-10/tr EconoReset uses a precision temperature-compensated reference and comparator circuit to monitor the status of the power supply (VCC). When an out-of-tolerance condition is detected, an internal power-fail signal is generated which forces reset to the active state. When VCC returns to an in-tolerance condition, the reset signal is kept in the active state for approximately 150 ms to allow the power supply and processor to stabilize. The ds1818r-10/tr also monitors a pushbutton on the reset output. If the reset line is pulled low, a reset is generated upon release and the ds1818r-10/tr output will be held in reset output low for typically 150 ms.

Parametrics

ds1818r-10/tr absolute maximum ratings: (1)Voltage on VCC Pin Relative to Ground: -0.5V to +7.0V; (2)Voltage on RST Relative to Ground: -0.5V to +5VCC +0.5V; (3)Operating Temperature: -40℃ to +85℃; (4)Storage Temperature: -55℃ to +125℃; (5)Soldering Temperature: 260℃ for 10 seconds.

Features

ds1818r-10/tr features: (1)Automatically restarts a microprocessor after power failure; (2)Monitors pushbutton for external override; (3)Maintains reset for 150 ms after VCC returns to an in-tolerance condition; (4)Reduces need for discrete components; (5)Precision temperature-compensated voltage reference and voltage sensor; (6)Accurate 5%, 10% or 20% power monitoring; (7)Low-cost TO-92 or space saving surface mount SOT-23 packages available; (8)Efficient open-drain output with internal 5.5 kΩ=pull-up resistor; (9)Operating temperature -40℃ to +85℃.

Diagrams

ds1818r-10/tr dimension