Maxim Integrated MAX6337US22D2+T Microprocessor Reset Circuit

The MAX6337US22D2+T from Maxim Integrated is a highly reliable microprocessor (µP) supervisory circuit designed to maintain system integrity during power failures or unexpected events. This compact and efficient device is ideal for portable and battery-powered applications where power conservation is critical. The MAX6337US22D2+T ensures that your microprocessor, microcontroller, or digital system remains in a reset state until the system voltage has stabilized at the correct operating level and maintains the reset condition for a minimum period (typically 140ms) to ensure a proper system restart.

This supervisory circuit operates over a wide voltage range and offers a factory-trimmed reset threshold voltage of 2.2V, making it suitable for low-voltage applications. The reset output is available in either an active-low push-pull or active-low open-drain configuration, which provides flexibility in interfacing with different microprocessors or digital systems.

The MAX6337US22D2+T features a low supply current of 5µA (typical), which is essential for power-sensitive designs. Additionally, it comes in a compact SOT-143 package, which saves valuable board space. The device also supports a wide temperature range from -40°C to +125°C, ensuring reliability and performance under various environmental conditions.

Key features of the MAX6337US22D2+T include:

• Factory-trimmed reset threshold voltage: 2.2V
• Low supply current: 5µA (typ.)
• Guaranteed reset valid to VCC = 1V
• Reset pulse width: 140ms min.
• Wide operating temperature range: -40°C to +125°C
• Compact SOT-143 package

With its precision voltage monitoring and low power consumption, the MAX6337US22D2+T is an excellent choice for managing power-up/power-down events and brown-out conditions in sensitive electronic systems. Whether used in consumer electronics, industrial controls, or handheld devices, this reset circuit from Maxim Integrated provides the reliability and performance required for modern electronic applications.