The DS1233-05 is a robust, precision EconoReset device from Maxim Integrated that provides an efficient solution for monitoring the power supply functionality in microprocessor (µP) systems. This compact component ensures that your microprocessor is reset to a known state during power-up, power-down, or brown-out conditions. It is an essential element for any system that demands high reliability and continuous operation without manual intervention.

Key Features

• Power Supply Monitoring: The DS1233-05 actively monitors the V_CC for under-voltage conditions. When V_CC falls below the reset threshold, the reset signal is asserted, which puts the µP into a reset state.
• Automatic Reset: Upon detecting a fault, it automatically asserts a reset signal for a minimum of 250ms after V_CC has risen above the reset threshold. This ensures a proper system reset and start-up sequence.
• Precision Threshold: The reset threshold voltage for the DS1233-05 is precisely set at 4.375V, providing an accurate reference point for systems operating at 5V.
• Low Power Consumption: This device is designed for low power consumption, making it suitable for power-sensitive applications.
• Compact Packaging: Available in a small, 3-pin TO-92 package, the DS1233-05 is suitable for space-constrained applications.
• No External Components Required: The device's simplicity allows it to function without the need for any external components, facilitating ease of design and integration into existing systems.

Applications

The DS1233-05 is versatile and can be used in a variety of applications, including:

• Embedded systems
• Computers and servers
• Communications systems
• Industrial equipment
• Portable/battery-powered equipment

Conclusion

Maxim Integrated's DS1233-05 EconoReset device is a crucial component for maintaining the integrity of microprocessor systems. Its ability to provide a reliable reset signal during power disturbances, combined with its precision and low-power operation, make it an excellent choice for designers seeking to enhance system reliability with minimal design complexity.