BD49K44G-TL

Overview

The BD49K44G-TL is a CMOS output voltage detector from the ROHM BD49 series, designed for high-accuracy monitoring. It features a fixed threshold voltage of 4.4 V with an accuracy of ±1%. The device operates within a supply voltage range up to 10 V and includes a reset delay time of 100 µs. It lacks manual reset, watchdog timer, or battery backup functions. The component supports surface-mount installation in an SSOP-3 package and functions reliably across a temperature range of -40°C to +105°C.

Feature Summary

• CMOS output type for direct logic interface compatibility
• High detection accuracy with ±1% threshold precision
• Low power consumption suitable for battery-operated systems
• Fixed reset delay timer ensures stable power-on sequencing

Applications

• Portable electronic devices requiring precise voltage monitoring
• Battery-powered equipment needing low standby current
• General-purpose supervisory circuits for microprocessors
• Industrial control systems operating in wide temperature ranges

Procurement Notes

Verify end-of-life status before integration, as this component may be discontinued. Confirm RoHS compliance and moisture sensitivity levels for storage and handling requirements. Check for available replacement parts such as the BD52xx series if new designs are required. Ensure ECAD models are updated for PCB layout compatibility.

Selection Notes

Select this part when a fixed 4.4 V threshold is required with CMOS output. Consider alternatives if adjustable delay or open-drain outputs are needed. Verify that the SSOP-3 package fits the board space constraints. Evaluate thermal performance within the specified operating temperature range for the target application environment.

Part Context

This component belongs to the BD49 series of voltage detectors, which offers various threshold voltages from 2.3 V to 6.0 V in 0.1 V increments. The series is characterized by high accuracy and low current consumption. The BD49K44G-TL specifically targets applications requiring a 4.4 V detection point with standard CMOS logic levels.

Replacement Considerations

The BD5244G-1TR is listed as a similar specification replacement with comparable detection voltage and package options.