BD49K53G-TL

Overview

The BD49K53G-TL is a CMOS voltage detector IC from the ROHM BD49 series, designed for monitoring single power supply lines. It features a fixed detection threshold of 5.3V with an accuracy of ±1%. The device operates within a maximum supply voltage of 10V and draws a typical operating current of 900 nA. It provides a reset signal with a fixed delay of 100 µs and utilizes a 3-pin SSOP package. The component supports an extended industrial temperature range from -40°C to +105°C.

Feature Summary

• CMOS output structure for low power consumption
• High precision voltage detection capability
• Compact surface-mount packaging

Applications

• Processor supervisor circuits
• Battery voltage monitoring systems
• Portable electronic device power management

Procurement Notes

Verify end-of-life status as multiple sources indicate this part is discontinued. Confirm availability through authorized distributors or secondary markets. Check RoHS compliance documentation and moisture sensitivity levels before integration into production schedules.

Selection Notes

Select this component when a fixed 5.3V threshold is required for system supervision. Ensure the application does not need manual reset or watchdog timer functions, as these are absent in this specific variant. Verify that the 100 µs reset delay meets timing requirements for the connected logic.

Part Context

This part belongs to the BD49xxx series of high-accuracy, low-current voltage detectors. The series offers various detection voltages from 2.3V to 6.0V in 0.1V increments. All devices in this family share similar electrical characteristics, including CMOS outputs and low standby currents, tailored for portable applications.

Replacement Considerations

BD5225G-1TR is listed as a similar specification replacement for related parts in the series, though direct substitution requires verification of threshold voltage compatibility.