Maxim Integrated MAX6337US23D3-T Microprocessor Supervisory Circuit

The MAX6337US23D3-T is a high-quality microprocessor (μP) supervisory circuit from Maxim Integrated, designed to monitor power supplies in μP and digital systems. It provides a significant level of protection to ensure that the system operates reliably over its voltage and temperature range. This precision circuit is ideal for use in a wide variety of applications, including computers, controllers, intelligent instruments, and portable battery-powered electronics.

One of the key features of the MAX6337US23D3-T is its ability to provide a reset signal to the μP during power-up, power-down, and brownout conditions. The reset output remains asserted for a minimum of 140ms after VCC has risen above the reset voltage threshold. This ensures that the μP restarts in a known state during moments of uncertain power.

The device operates with a supply voltage range from 1.2V to 5.5V, making it versatile for different types of system designs. It offers factory-trimmed reset threshold voltages ranging from 2.32V, tailored to the needs of 3.3V-powered systems. The MAX6337US23D3-T boasts a low supply current of just 5µA (typical), which is particularly beneficial for battery-powered applications where power efficiency is critical.

Moreover, the MAX6337US23D3-T comes in a compact SOT-143 package, which is space-efficient and suitable for systems where board real estate is at a premium. The device also features an active-low manual reset input, allowing for a system reset to be triggered externally when necessary.

For enhanced system reliability, the MAX6337US23D3-T includes an immunity to short VCC transients, and it is characterized over the extended industrial temperature range of -40°C to +85°C. This robust temperature range ensures that the device can operate reliably in harsh environmental conditions.

In summary, the Maxim Integrated MAX6337US23D3-T is a highly reliable and efficient supervisory circuit that offers critical monitoring and protection for microprocessor systems. Its low power consumption, precision voltage monitoring, and compact form factor make it an excellent choice for designers looking to enhance system stability and performance.