BD49L25G-TL

Overview

The BD49L25G-TL is a voltage detector IC from ROHM Semiconductor, designed for monitoring single-input power supply lines. It features a CMOS output type and operates within a maximum supply voltage of 10 V. The device detects voltages with a threshold of 2.5 V and maintains an accuracy of 1%. It consumes a typical operating current of 900 nA and provides a reset delay time of 100 us. The component functions reliably across a temperature range of -40 C to +105 C and is housed in an SSOP-3 package.

Feature Summary

• CMOS output configuration for direct logic interface compatibility
• High detection accuracy of 1% for precise voltage supervision
• Ultra-low current consumption of 900 nA for battery efficiency
• Compact SSOP-3 surface mount packaging

Applications

• Microcontroller power supply monitoring
• CPU voltage supervision
• DSP system reset generation
• General electronic circuit protection

Procurement Notes

Verify the specific part number BD49L25G-TL against official ROHM documentation to confirm technical specifications. Check the lifecycle status as the provided data indicates this model may be discontinued. Ensure compatibility with the target application's voltage requirements and environmental conditions before integration.

Selection Notes

Select this component when a low-cost, single-channel voltage monitor with CMOS output is required. The 2.5 V threshold suits applications where this specific level triggers a reset or alarm. Consider the 100 us delay and 1% accuracy for timing-sensitive designs. Verify that the SSOP-3 footprint fits the PCB layout constraints.

Part Context

This device belongs to the BD49xxx series of highly accurate, low-current voltage detectors. Unlike the BD48xxx series which offers N-channel open-drain outputs, the BD49xxx family provides CMOS outputs. This distinction affects how the reset signal interfaces with downstream logic circuits, requiring pull-up considerations if necessary.

FAQ

Does the BD49L25G-TL include a manual reset function?

No, the device does not feature a manual reset input.

Is there a watchdog timer integrated into this IC?

No, the BD49L25G-TL does not include a watchdog timer.