Maxim Integrated MAX6310UK43D2 Precision Voltage Microprocessor Reset Circuit

The MAX6310UK43D2 is a highly precise, low-power voltage microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in digital systems. It provides a significant function in the realm of electronic devices by ensuring that the microprocessor is reset to a known state during power-up, power-down, or brown-out conditions. This feature is vital for maintaining system reliability and preventing erratic operation.

This particular model of the MAX6310 series comes in a compact SOT-23 package, making it suitable for space-constrained applications. It is designed to monitor a fixed factory-set voltage of 4.3 volts, which is ideal for 5V-powered systems. The MAX6310UK43D2 provides an active-low reset output, which remains asserted for a minimum of 140ms after VCC has risen above the reset threshold level. This ensures that the µP has sufficient time to stabilize and start up correctly.

The MAX6310UK43D2 boasts a low supply current of only 1.2µA, making it an energy-efficient choice for portable and battery-powered devices. Its precision voltage monitoring helps prevent data corruption and enhances system reliability by ensuring the µP and other critical components operate within their specified voltage ranges.

Key features of the MAX6310UK43D2 include:

• Factory-Set Reset Threshold Voltage: 4.3V
• Low Supply Current: 1.2µA (typical)
• Guaranteed Reset Valid to VCC = 1V
• Minimum 140ms Reset Pulse Width
• Immune to Short VCC Transients
• No External Components Required
• Compact SOT-23 Packaging

Applications for the MAX6310UK43D2 are diverse and include portable devices, computers, controllers, intelligent instruments, critical µP and µC power monitoring, and embedded systems. Its robust design ensures that it is a reliable component for maintaining system integrity across various industries and technological applications.

Overall, the Maxim Integrated MAX6310UK43D2 is an essential device for any design engineer looking to enhance the operational stability of their digital systems. Its precision, low power consumption, and small form factor make it an excellent choice for a wide range of applications.