Introducing the LTC694IN8 from Linear Technology

The LTC694IN8 is a highly reliable, versatile microprocessor supervisory circuit designed by Linear Technology to monitor power supplies in microprocessor systems. This state-of-the-art product provides a precise, cost-effective solution for system reset and power failure warning, ensuring robust performance of electronic applications.

Key Features

• Precision Voltage Monitoring: The LTC694IN8 is engineered to accurately monitor 5V power supplies, maintaining a tight 4.65V threshold, which ensures that the microprocessor has sufficient voltage to operate correctly.
• Low Power Consumption: With a quiescent current of only 15µA, it is an ideal choice for power-conscious designs, contributing to the overall energy efficiency of the system.
• Reset Output: The device provides a reset output during power-up, power-down, and brownout conditions. The reset signal is guaranteed to remain asserted for a minimum of 200ms after VCC has risen above the reset threshold, giving the system ample time to stabilize.
• Watchdog Timer: The built-in watchdog timer ensures that the system remains operational by requiring periodic servicing from the microprocessor. If the timer is not reset before the set time elapses, the LTC694IN8 will issue a system reset as a fail-safe measure.
• Power Failure Warning: An early warning of impending power failure is provided, allowing the system to execute shutdown procedures, thus preventing data loss and ensuring system integrity.

Applications

The LTC694IN8 is an ideal component for a wide range of applications where reliable monitoring of the power supply is critical. This includes:

• Microprocessor systems
• Computers and controllers
• Intelligent instruments
• Portable battery-powered equipment

Package and Reliability

The LTC694IN8 comes in a robust 8-pin PDIP (Plastic Dual In-line Package) that is easy to integrate into various circuit designs. Linear Technology's commitment to high-quality manufacturing ensures that this supervisory circuit meets the stringent reliability standards required for industrial and commercial applications.

With the LTC694IN8, designers can ensure their systems operate reliably and are protected from the dangers of unpredictable power supply conditions, making it an essential component for safeguarding critical data and functionality.