Maxim Integrated MAX6333UR20D3-T Voltage Supervisor

The MAX6333UR20D3-T is a precision voltage supervisor designed to monitor power supplies in microprocessor and digital systems, providing a significant layer of protection against low-voltage conditions. Manufactured by Maxim Integrated, a leader in analog and mixed-signal products, this component ensures that systems operate within their specified voltage ranges, thus enhancing the reliability and stability of the entire system.

This voltage supervisor is designed to maintain system integrity by monitoring the supply voltage (Vcc) and asserting a reset signal whenever Vcc drops below the factory-set reset threshold. The reset signal remains asserted for a preset timeout period after Vcc rises above the reset threshold, ensuring that the system has adequate time to stabilize before resuming operation.

The MAX6333UR20D3-T operates with a nominal threshold voltage of 2.0V, which is ideal for low-voltage applications. It features a tight reset threshold accuracy of ±1.5% over the entire temperature range of -40°C to +85°C, which is critical for systems that require precise voltage monitoring.

One of the notable features of this device is its low supply current of only 5µA (typical), making it an excellent choice for power-sensitive applications. The MAX6333UR20D3-T comes in a compact SOT-23 package, which is suitable for space-constrained designs.

Additional features of the MAX6333UR20D3-T include:

• Immunity to short Vcc transients
• Ability to assert reset with a manual push-button (manual reset input)
• Debounced CMOS-compatible inputs
• Open-drain reset output
• Guaranteed reset valid to Vcc = 1V

The MAX6333UR20D3-T is an excellent choice for a wide range of applications, including portable/battery-powered equipment, embedded controllers, automotive systems, and any application where power supply stability is critical. Its small size, low power consumption, and high accuracy make it a versatile component for ensuring system reliability and avoiding the potentially damaging effects of undervoltage conditions.