AS1905C26-T

Supervisors Overview

The AS1905C26-T is a single-channel voltage supervisor integrated circuit manufactured by ams-OSRAM. It operates within a supply voltage range of 4.38V to 5.5V and features a fixed threshold voltage of 2.63V. The device provides a push-pull or图腾柱 output configuration with an active-high reset signal. It includes a minimum reset timeout period of 60ms to ensure stable power-up sequencing. The component is designed for surface-mount installation in SOT-23-3 packages and supports an operating temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Provides precise voltage monitoring with a fixed 2.63V threshold
• Generates active-high reset signals upon power-up or undervoltage events
• Features a guaranteed minimum 60ms reset timeout for system stability

Supervisors Applications

• Portable electronic devices requiring reliable power management
• Embedded systems needing simple reset generation
• Battery-powered equipment with low-voltage protection needs

Supervisors Procurement Notes

Verify the specific suffix 'C26' confirms the 2.63V threshold voltage, as variations exist within the AS1905 family. Confirm package type is SOT-23-3. Check current availability status as some variants may be discontinued. Ensure compatibility with target operating temperatures ranging from -40°C to +85°C. Validate that the active-high output logic matches the receiving microcontroller's input requirements.

Supervisors Selection Notes

Select this component when a fixed 2.63V supervision level is required for single-rail applications. Choose the SOT-23-3 package for space-constrained designs. Consider the active-high output polarity and 60ms timeout duration against system startup timing requirements. Compare against other thresholds in the AS1905 series if different voltage levels are needed.

Supervisors Part Context

The AS1905C26-T belongs to the AS1905 series of simple reset supervisors. These ICs are designed for cost-sensitive applications requiring basic power-on reset functionality. The series offers various threshold voltages identified by suffix codes, allowing designers to select precise trip points without external resistors. The C26 variant specifically targets 2.63V monitoring.

Supervisors Replacement Considerations

Direct substitutes include other AS1905 variants with identical pinouts but different voltage thresholds (e.g., AS1905C31-T for 3.08V). Verify functional equivalence regarding output type and timeout characteristics before substitution.