BD49L47G-TL

Overview

The BD49L47G-TL is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-input power supply lines. It features a fixed threshold voltage of 4.7 V with an accuracy of 1%. The device operates within a maximum supply voltage of 10 V and consumes a typical operating current of 900 nA. It provides a reset delay time of 100 us and lacks manual reset, watchdog timer, or battery backup functions. The component is housed in an SSOP-3 package, supports surface mount installation, and functions reliably across a temperature range of -40 C to +105 C.

Feature Summary

• CMOS output type for low power consumption
• High precision threshold detection at 1% accuracy
• Compact SSOP-3 surface mount packaging

Applications

• Power supply monitoring in electronic systems
• Voltage supervision for microcontroller reset circuits
• Battery voltage level detection

Procurement Notes

Verify component authenticity through authorized distributors as the part status is listed as obsolete. Confirm package integrity and moisture sensitivity handling requirements prior to assembly. Cross-reference datasheet specifications against current design needs due to end-of-life status.

Selection Notes

Select this component when a fixed 4.7 V threshold with high accuracy is required. Consider the low quiescent current for battery-operated applications. Ensure the SSOP-3 footprint fits the PCB layout constraints. Evaluate alternative active parts if long-term supply stability is critical.

Part Context

Part of the BD49 series voltage detectors from ROHM Semiconductor. Designed for compact supervisory circuit applications requiring minimal external components. Utilizes CMOS technology for efficient power management in small form factor designs.

Replacement Considerations

Check for direct pin-compatible substitutes within the BD49 series or newer ROHM voltage detector families. Verify threshold voltage compatibility and package dimensions before substitution.