BD48L33G-TL

Overview

The BD48L33G-TL is a standard CMOS voltage detector IC from ROHM Semiconductor, designed for precise power supply monitoring. It features an N-channel open-drain output and operates within a reset active voltage range of 0.95V to 10V. The device provides a typical under-voltage detection threshold of 3.3V with a precision of ±1%. It consumes ultra-low current, specified at 0.60μA in the ON state and 0.85μA in the OFF state when Vs=4.8V. Hysteresis is set at VDET x 0.05. The component is housed in an SSOP-3 package and supports an operating temperature range from -40°C to 105°C.

Feature Summary

• High accuracy voltage detection with ±1% precision
• Ultra-low current consumption for battery-powered applications
• N-channel open-drain output configuration
• Wide reset active voltage range supporting various logic levels

Applications

• Processor supervisor circuits requiring stable voltage monitoring
• Battery-operated devices needing low quiescent current
• Portable electronic equipment with strict power management requirements

Procurement Notes

Verify the specific ordering suffix and package variant against the latest official datasheet before procurement. Confirm supply status as some variants may be obsolete or not recommended for new designs. Ensure compatibility with existing PCB footprints and verify RoHS compliance documentation matches the required manufacturing standards for your production line.

Selection Notes

Select this component when a fixed 3.3V detection threshold is required with high accuracy. Consider the open-drain output capability for interfacing with different logic families. Evaluate the ultra-low current consumption benefits for energy-sensitive designs. Verify that the SSOP-3 package fits the available board space and thermal constraints of the target application environment.

Part Context

This part belongs to the BD48xxx series of highly accurate, low-current voltage detectors. The series offers various detection voltages from 2.3V to 6.0V in 0.1V increments. The BD48L33G-TL specifically targets the 3.3V market segment, providing a reliable solution for systems requiring precise under-voltage detection without the complexity of adjustable delay timers or watchdog functions found in other series members.

Replacement Considerations

BD5233G-1TR is listed as a similar specification replacement with comparable detection voltage and output type.