The DS1818R-5+TGR from Maxim Integrated is a versatile and reliable microprocessor supervisory circuit that ensures the stable operation of microprocessor (μP) systems. This compact and efficient component is designed to monitor the power supply voltage in digital systems and provide a reset signal to the μP whenever necessary.

Key Features

• Precision Monitoring: The DS1818R-5+TGR boasts a precise factory-trimmed threshold that monitors the V<sub>CC for under-voltage conditions. When V<sub>CC falls below the reset threshold, the reset output is asserted, ensuring the μP resets cleanly during power-up, power-down, and brownout conditions.
• Programmable Reset Timeout: It offers a programmable reset timeout delay, which provides flexibility in system design and ensures compatibility with a variety of μP and μC systems.
• Low Power Consumption: Designed for power-sensitive applications, this device consumes minimal power, thus contributing to the overall power efficiency of the system it is used in.
• High Accuracy: The reset threshold accuracy is maintained over the full temperature range, which is critical for reliable operation in systems exposed to varying environmental conditions.
• Compact SOT-23 Packaging: The DS1818R-5+TGR comes in a small SOT-23 package, making it suitable for space-constrained applications without compromising on performance.

Applications

This supervisory circuit is ideal for a wide range of applications where reliable system operation is paramount. It is commonly used in:

• Computers and Servers
• Embedded Systems
• Portable/Battery-Powered Equipment
• Industrial Controllers
• Telecommunications Systems

Technical Specifications

With its robust design and comprehensive features, the DS1818R-5+TGR is a smart choice for ensuring the dependable operation of critical electronic systems.