Maxim Integrated DS1832S-DALL MicroMonitor Chip

The DS1832S-DALL is a highly efficient MicroMonitor chip designed by Maxim Integrated to ensure reliable operation of microprocessor (µP) systems. This compact and robust device offers a comprehensive solution for monitoring the power supply and managing the reset function for microprocessors, thereby enhancing the stability and performance of electronic systems.

The DS1832S-DALL features an automatic reset generation during power-up, power-down, and brownout conditions. Its ability to monitor the supply voltage ensures that the connected microprocessor and other critical components operate within the safe voltage range, providing an additional layer of protection against unpredictable power fluctuations.

One of the key attributes of this MicroMonitor chip is its precision temperature-compensated voltage reference and comparator circuit, which monitors the status of VCC. When VCC falls below the factory-set reset threshold, the reset signal is asserted, which remains active for a minimum of 140ms after VCC rises above the reset threshold. This ensures a proper reset pulse width and allows the microprocessor to recover from an unstable state.

The DS1832S-DALL comes in a space-saving 3-pin SOT-23 package, making it ideal for use in systems where board space is at a premium. Its low power consumption and wide operating temperature range make it suitable for a variety of applications, including embedded systems, computers, controllers, and intelligent instruments.

Key features of the DS1832S-DALL include:

• Automatic reset generation during power-up, power-down, and brownout conditions.
• Active-low RESET output with 140ms (min) reset pulse width.
• Factory-trimmed reset threshold for high accuracy.
• Low supply current of 23µA (typical) for energy-efficient operation.
• Operates over a wide voltage range of 1.2V to 5.5V.
• Guaranteed RESET assertion down to VCC = 1.2V.
• Immune to short VCC transients.
• Robust operating temperature range from -40°C to +85°C.

With its robust design and essential features, the Maxim Integrated DS1832S-DALL MicroMonitor chip is a reliable choice for designers looking to enhance the safety and performance of their microprocessor-based systems.