Maxim Integrated Product: MAX6315US29D2+T

The MAX6315US29D2+T is a low-power, highly reliable microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in systems that require voltage monitoring and battery control functions.

This supervisory circuit ensures that the µP and its peripherals are reset properly during power-up, power-down, and brown-out conditions. The MAX6315US29D2+T comes with a preset threshold voltage of 2.925V, which is ideal for monitoring 3V power supplies and ensuring that the system voltage does not fall below a minimum acceptable level.

Featuring a robust design, the MAX6315US29D2+T includes a variety of features to enhance system stability:

• Power Supply Monitoring: Precision monitoring of the power supply voltage ensures that the system operates reliably under various conditions.
• Manual Reset Input: This feature allows for an external signal to initiate a system reset, providing an additional layer of control.
• Reset Output: The device provides an active-low reset signal, which remains asserted for a minimum of 140ms after VCC has risen above the reset threshold. This ensures that the system has sufficient time to stabilize before normal operation resumes.
• Low Power Consumption: With its low quiescent current draw, this supervisory circuit is suitable for battery-operated applications where power efficiency is critical.
• High Accuracy: The device features a ±1.5% reset threshold accuracy over the entire temperature range, which is vital for reliable operation.
• Immune to Short VCC Transients: Fast transients on the VCC line are filtered, preventing unnecessary resets and ensuring smooth system performance.

Available in a compact SOT-143 package, the MAX6315US29D2+T is a versatile and convenient solution for a wide range of applications, including computers, controllers, intelligent instruments, portable/battery-powered equipment, and embedded systems. Its temperature range of -40°C to +85°C allows for operation in diverse environmental conditions.

Maxim Integrated's commitment to quality and reliability makes the MAX6315US29D2+T a trusted choice for designers looking to enhance the stability and robustness of their digital systems.