The MIC803-29D2VM3 is a precision voltage monitoring circuit used to supervise microprocessor and digital systems. It provides a reset signal to the microprocessor during power-up, power-down, and brownout conditions. This ensures that the microprocessor starts and operates in a known state, preventing data corruption and system malfunctions. This particular variant has a factory programmed reset threshold of 2.9V.

Applications

• Microprocessor-based systems
• Embedded systems
• Critical monitoring of voltage supplies
• Portable equipment
• Computers and peripherals
• Industrial controllers

Features

• Precision voltage monitoring
• Factory trimmed reset threshold
• Active-low reset output
• Open-drain reset output
• Small SOT23-3 package
• Low supply current
• No external components required

Benefits

• Prevents microprocessor malfunctions due to voltage sags and power failures.
• Ensures reliable system operation by providing a reset signal during power-up and power-down.
• Simplified design due to minimal external components.
• Saves board space with its small SOT23-3 package.
• Reduces power consumption with its low supply current.

Additional Details

The MIC803-29D2VM3 features an open-drain reset output, which allows for flexible connection to various microprocessor reset inputs. The reset output remains asserted as long as the supply voltage is below the reset threshold or the reset output is externally pulled low. The device operates over a wide temperature range and is available in a small SOT23-3 package. The MIC803 offers several reset threshold options; this version is specifically programmed to trigger a reset at 2.9V. It is a cost-effective and reliable solution for ensuring the proper operation of microprocessor-based systems.

The open drain output requires a pull-up resistor to the desired voltage level. The MIC803 is well suited for applications needing accurate and reliable voltage supervision.