NCP303LSN46T1

Supervisors Overview

The NCP303LSN46T1 is a supervisory circuit manufactured by onsemi, designed for monitoring single voltage inputs. It features a threshold voltage of 4.5V with an overvoltage threshold of 4.59V and an accuracy of 2%. The device operates within a power supply range up to 10V and consumes a typical working current of 500 nA. It provides an active low, open-drain output with programmable reset delay time. The component supports battery backup switching but lacks manual reset or watchdog timer functions. It is housed in a TSOP-5 package and operates between -40°C and +125°C.

Supervisors Feature Summary

• Provides single-channel voltage detection with active low open-drain output capability.
• Features programmable reset delay timing for customized system response.
• Supports battery backup switching to maintain system integrity during power transitions.

Supervisors Applications

• Portable microprocessor-based systems requiring extended battery life
• Voltage supervision for embedded controllers
• Battery-powered equipment monitoring

Supervisors Procurement Notes

Verify component status as the NCP303LSN46T1 is listed as obsolete and end-of-life. Confirm availability through authorized distributors or secondary markets. Ensure replacement parts like NCV303LSN46T1G meet all electrical specifications. Check RoHS compliance details and lead times carefully due to discontinued status.

Supervisors Selection Notes

Select this component for applications requiring ultra-low current consumption and precise voltage monitoring. Consider the NCV303LSN46T1G variant if automotive qualification is needed. Verify that the TSOP-5 package fits the PCB layout constraints. Ensure the 4.5V threshold aligns with the target supply rail requirements.

Supervisors Part Context

This part belongs to the NCP303 series of voltage detectors from onsemi. These devices are engineered for low-power applications where minimal quiescent current is critical. The series includes various threshold options to suit different supply voltages. The NCP303LSN46T1 specifically targets 4.5V monitoring needs in portable electronics.

Supervisors Replacement Considerations

NCV303LSN46T1G is a confirmed parameter-equivalent substitute available from onsemi. This alternative offers AEC-Q100 qualification for automotive applications while maintaining identical electrical characteristics and pinout compatibility.