Description

The DS1818R-10+T is an electronic component in the category of supervisors. It is designed to monitor the status of the power supply (VCC) using a precision temperature-compensated reference and comparator circuit. When an out-of-tolerance condition is detected, it generates an internal power-fail signal to force a reset to the active state. After VCC returns to an in-tolerance condition, the reset signal remains active for approximately 150 ms to allow the power supply and processor to stabilize.

Specifications and features

• Automatically restarts a microprocessor after power failure
• Monitors pushbutton for external override
• Maintains reset for 150 ms after VCC returns to an in-tolerance condition
• Reduces the need for discrete components
• Precision temperature-compensated voltage reference and voltage sensor
• Accurate 5%, 10% or 20% power monitoring
• Low-cost TO-92 or space saving surface mount SOT-23 packages available
• Efficient open-drain output with internal 5.5 kΩ pull-up resistor
• Operating temperature range: -40°C to +85°C

Application Scenarios

The DS1818R-10+T can be used in various applications such as:

• Microprocessor-based systems
• Power supply monitoring
• Embedded systems
• Industrial control systems

Comparison

• Precision temperature-compensated reference ensures accurate monitoring
• Automatically restarts a microprocessor after power failure
• Reduces the need for discrete components
• Cost-effective with low-cost package options available

• Operating temperature range limited to -40°C to +85°C