NCP302HSN27T1

Supervisors Overview

The NCP302HSN27T1G is a supervisory circuit from onsemi, functioning as a voltage detector with an active-high CMOS output. It features a threshold voltage of 2.7V and operates within a supply voltage range of 800 mV to 10 V. The device offers 2% accuracy and includes a programmable reset delay time. It is housed in a 5-pin TSOP package and supports battery backup switching. The component operates between -40°C and +125°C.

Supervisors Feature Summary

• Provides processor supervision via active-high CMOS output for reliable system reset control
• Features programmable reset delay timing to accommodate specific startup requirements
• Supports battery backup switching to maintain system integrity during power transitions

Supervisors Applications

• Reset controllers in portable microprocessor-based systems
• Voltage monitoring in battery-powered devices requiring extended life
• Supervisory circuits for embedded systems with strict power constraints

Supervisors Procurement Notes

Verify the exact part number suffix, as the provided model lacks the 'G' RoHS compliance indicator often present in official datasheets. Confirm end-of-life status, as similar NCP302 variants have been discontinued by the manufacturer. Ensure compatibility with existing PCB footprints for the 5-TSOP package before procurement planning.

Supervisors Selection Notes

Select this component when an active-high output is required for direct interfacing with logic inputs. The low operating current makes it suitable for battery-operated applications where minimizing quiescent drain is critical. Verify that the 2.7V threshold aligns with the target supply rail under load conditions.

Supervisors Part Context

This device belongs to the NCP302 series of ultra-low current voltage detectors designed for portable electronics. It serves as a second-generation improvement over earlier models, offering enhanced accuracy and flexibility through programmable delays. The series is optimized for microprocessor reset applications in space-constrained environments.

Supervisors Replacement Considerations

Check for NCV302LSN27T1G or NCP302LSN27T1G if active-low outputs are acceptable. Verify availability of NCP300HSN27T1G for alternative supervisor functions. Consult official substitution guides for pin-compatible alternatives with updated manufacturing statuses.