LTC1235CN#PBF

Supervisors Overview

The LTC1235CN#PBF is a microprocessor supervisory circuit manufactured by Analog Devices Inc. in a 16-pin DIP package. It provides complete power supply monitoring and battery control functions, including microprocessor reset, battery backup, RAM write protection, and brownout detection. The device operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range of 0°C to +70°C. It features a minimum reset timeout of 140ms and offers active high or active low reset outputs.

Supervisors Feature Summary

• Provides comprehensive power system supervision with integrated battery backup management capabilities
• Includes dedicated functions for RAM write protection and brownout detection to ensure data integrity
• Offers configurable reset output polarity options to accommodate various logic interface requirements

Supervisors Applications

• Microprocessor reset circuits requiring reliable power monitoring
• Battery backup systems for maintaining data during power loss
• RAM write protection applications in embedded systems

Supervisors Procurement Notes

Verify the specific suffix designation against official Analog Devices documentation to confirm pinout compatibility and electrical characteristics. Ensure that the procurement channel sources genuine components from authorized distributors to avoid counterfeit risks. Confirm that the requested quantity aligns with available distribution channels, as availability may vary. Cross-reference the part number with the latest datasheet revisions to ensure all technical specifications meet current design requirements before finalizing orders.

Supervisors Selection Notes

Select this component when designing systems requiring robust power monitoring with integrated battery backup support. It is suitable for applications needing both brownout detection and RAM write protection functionality. Consider the 16-pin DIP package for through-hole mounting requirements. Evaluate the 140ms minimum reset timeout against system startup timing constraints. Verify that the 0°C to +70°C operating temperature range meets the environmental conditions of the target application.

Supervisors Part Context

The LTC1235 belongs to Analog Devices' family of microprocessor supervisory circuits designed for critical power management tasks. This series typically includes variants with different reset thresholds and package options. The CN#PBF designation indicates a commercial temperature range version in a plastic dual in-line package. These devices are commonly used in industrial and consumer electronics where system reliability depends on accurate power sequencing and fault detection.

Supervisors Replacement Considerations

Consult official Analog Devices substitution guides for verified compatible alternatives. Check for equivalent parts with matching reset thresholds and package dimensions. Verify that any substitute maintains the same battery backup and write protection functionalities. Ensure thermal performance and electrical specifications align with the original design requirements.