Product Overview: MAX6800UR46D3+T from Maxim Integrated

The MAX6800UR46D3+T is a low-power, microprocessor (μP) supervisory circuit designed by Maxim Integrated to monitor power supplies in μP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in systems that require voltage monitoring. This supervisory circuit is particularly suitable for battery-powered applications because of its low power consumption and small footprint.

This device is adept at providing a precise comparison of VCC to a preset threshold voltage. When VCC falls below this threshold, known as the reset threshold, the MAX6800UR46D3+T asserts a reset signal to prevent the μP from operating under conditions that could lead to uncertain behavior or damage. The reset signal remains asserted for a minimum timeout period after VCC rises above the reset threshold, ensuring the system has stabilized before the processor restarts operations.

Key features of the MAX6800UR46D3+T include:

• Factory-trimmed VCC reset threshold voltage at 4.63V.
• Low supply current of 1.6µA at VCC = 3.6V, which is ideal for portable equipment.
• Guaranteed reset valid to VCC = 1.0V, which is beneficial for low-voltage operations.
• 140ms min reset timeout delay, providing ample time for system stabilization.
• No external components are required, which simplifies design and reduces board space.
• Immune to short VCC transients, enhancing system reliability.
• Available in a tiny SOT-23 package, perfect for space-constrained applications.

The MAX6800UR46D3+T operates over a wide temperature range of -40°C to +125°C, making it versatile for various environmental conditions. This product comes in a tape-and-reel format denoted by the "+T" suffix, facilitating automated manufacturing processes.

With its combination of features, the MAX6800UR46D3+T is an excellent choice for managing power supply supervision in complex systems, ensuring that all components operate within their intended voltage ranges for optimal performance and longevity.