LP3470IM5-4.63/NOPB

Supervisors Overview

The LP3470IM5-4.63/NOPB is a voltage supervisory circuit manufactured by Texas Instruments, designed for surface-mount applications in a SOT-23-5 package. It features an active low, open-drain output with a fixed reset threshold voltage of 4.63 V and a reset delay time of 2 ms. The device monitors a single input channel and operates within a maximum supply voltage of 5.5 V. It supports a minimum operating temperature of -40°C and a maximum operating temperature of 85°C. The component does not include manual reset, watchdog timer, or battery backup switching functions.

Supervisors Feature Summary

• Provides active low reset signal via open-drain output
• Features fixed 1% accuracy reset threshold voltage
• Includes programmable reset delay timing
• Designed for compact surface-mount integration

Supervisors Applications

• Power-on reset monitoring for microprocessors
• Voltage supervision for embedded systems
• Battery-powered device power management
• Industrial control system reset circuits

Supervisors Procurement Notes

Verify the specific suffix configuration to ensure compatibility with design requirements. Confirm that the active low open-drain output aligns with the target logic interface. Check the latest manufacturer documentation for any updates regarding the recommended new design status. Ensure thermal limits are respected during operation. Validate pinout assignments against the official datasheet before finalizing the layout.

Supervisors Selection Notes

Select this component when a fixed 4.63 V threshold is required for precise voltage monitoring. Consider the SOT-23-5 package size for space-constrained designs. Evaluate the 2 ms reset delay against system startup timing requirements. Verify that the absence of manual reset and watchdog features meets the application's safety needs. Compare performance characteristics with alternative supervisors if variable thresholds are needed.

Supervisors Part Context

This part belongs to the LP3470 series of tiny power-on reset circuits from Texas Instruments. The series offers various threshold voltages to accommodate different supply rails. The IM5 variant specifically denotes the SOT-23-5 packaging option. The NOPB suffix indicates lead-free and RoHS compliance. This family is intended for simple reset applications without complex timing or watchdog functionalities.

Supervisors Replacement Considerations

Public confirmed substitute part numbers include LP3470M5-4.63/NOPB and LP3470A463DBVR. Verify functional equivalence regarding threshold voltage and output type. Check package compatibility for direct replacement. Review updated specifications for any changes in electrical characteristics or operating conditions.