BU46L484G-TL

Supervisors Overview

The BU46L484G-TL is a CMOS voltage detector IC from ROHM Semiconductor, designed for monitoring single power supply lines. It features a fixed threshold voltage of 4.8 V and a reset delay time of 400 ms. The device operates within a maximum supply voltage of 6 V and consumes a typical operating current of 2.8 uA. Accuracy is specified at 1%, with an overvoltage threshold of 4.848 V. It utilizes an SSOP-3 package, supports surface mount installation, and functions across a temperature range of -40°C to +105°C.

Supervisors Feature Summary

• Built-in counter timer delay circuit eliminates the need for external capacitors for delay time setting.
• CMOS output type provides direct interface compatibility with digital logic circuits.
• High accuracy specification ensures reliable detection of voltage thresholds.
• Low current consumption design supports battery-powered applications.

Supervisors Applications

• Microprocessor system reset circuits
• Battery voltage monitoring in portable devices
• Power supply supervision for embedded systems

Supervisors Procurement Notes

Verify component authenticity through authorized channels due to NRND status. Confirm RoHS compliance details and humidity sensitivity handling requirements during storage and assembly. Check latest datasheet revisions for any updates to electrical characteristics or packaging specifications before finalizing procurement orders.

Supervisors Selection Notes

Select this part when a 4.8 V threshold with 400 ms delay is required in an SSOP-3 package. Consider alternatives if manual reset functionality or watchdog timers are needed. Ensure input voltage does not exceed 6 V. Verify thermal performance within the -40°C to +105°C operating range for the specific application environment.

Supervisors Part Context

Part of the BU45/BU46 series of highly accurate, low current consumption voltage detector ICs. These series integrate internal delay circuits to simplify design by removing external timing components. The BU46L484G-TL specifically offers CMOS output and standard delay characteristics within this family.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The BU46L484G-TL is marked as NRND (Not Recommended for New Designs). Engineers should consult official ROHM resources for potential obsolescence management strategies or approved replacements.