RT9818A-26GB

Supervisors Overview

The RT9818A-26GB is a micro-power voltage detector manufactured by Richtek Technology Corporation. It supervises power supply voltage levels for microprocessors and digital systems, providing an internally fixed threshold of 2.6V with ±1.5% accuracy. The device features a low supply current of 3μA and operates within a functional supply voltage range starting from 0.9V. It utilizes an N-channel open-drain output to signal reset conditions when the input voltage falls below the preset threshold. The component is housed in a SOT-23-5 package (specifically L2.9-W1.6-P0.95-LS2.8-BR) and includes built-in recovery delay options.

Supervisors Feature Summary

• Provides micro-power supervision for digital system power rails with high accuracy thresholds.
• Features low quiescent current consumption to extend battery life in portable applications.
• Includes built-in recovery delay to prevent false triggering during power transitions.
• Delivers quick reset response times without requiring external components.

Supervisors Applications

• Supervising power supply voltage levels for microprocessors
• Digital system power monitoring
• Battery-powered portable devices

Supervisors Procurement Notes

Verify the specific suffix 'GB' against official Richtek documentation to confirm the exact package variant and lead plating specifications. Ensure the 2.6V threshold matches the design requirements. Confirm RoHS compliance status through the manufacturer's datasheet or certification documents before finalizing procurement.

Supervisors Selection Notes

Select this component when a precise 2.6V detection threshold is required for microprocessor supervision. Consider the 3μA supply current for low-power designs. Verify that the SOT-23-5 package fits the board space constraints. Check if the available built-in recovery delay options meet the system's startup timing requirements.

Supervisors Part Context

The RT9818 series consists of micro-power voltage detectors designed for supervising power supplies in digital systems. The RT9818A-26GB is part of this family, offering fixed threshold voltages ranging from 1.2V to 5V in 0.1V steps. This specific model provides a 2.6V threshold and is available in various packages including SOT-23-3, SOT-23-5, and SC-70-3.

Supervisors FAQ

What is the reset output type of the RT9818A-26GB?

The RT9818A-26GB features an N-channel open-drain output.

Does the RT9818A-26GB require external components for operation?

No external components are required for basic operation as it has internally fixed threshold levels.