BD5348G-TR

Overview

The BD5348G-TR is a voltage detector IC with adjustable delay time, manufactured by ROHM Semiconductor. It features an under-voltage detection voltage of 4.8V (typical) and a VDET precision of ±1%. The reset active voltage range spans from 0.95V to 10V. The output type is CMOS, with a low active state. It includes an adjustable delay timer and lacks manual reset or watchdog timer functions. The circuit current is 0.85μA at VDET=4.8V. Hysteresis voltage is VDET x 0.05. L output currents are 1.2mA (LowVol) and 5mA (HighVol). The delay circuit resistance is 9.0MΩ. Operating temperature ranges from -40°C to 105°C. Package is SSOP5.

Feature Summary

• Adjustable delay timer for customized reset timing
• CMOS output type with low active state
• Wide reset active voltage range from 0.95V to 10V
• Hysteresis voltage set at VDET x 0.05

Applications

• Microprocessor system reset circuits
• Battery-powered device supervision
• Embedded system power monitoring

Procurement Notes

Verify the part number BD5348G-TR against official ROHM documentation to confirm it is designated as 'Not Recommended for New Designs'. Ensure compatibility with existing designs only. Check RoHS compliance status and package details (SSOP5) during procurement. Confirm supply status before ordering, as it may be limited to supporting existing customers.

Selection Notes

Select BD5348G-TR for legacy systems requiring a 4.8V detection threshold with adjustable delay. Consider the CMOS output and wide voltage range. For new designs, evaluate replacement options like BD5248G-1 due to the 'Not Recommended' status. Verify temperature range (-40°C to 105°C) matches application requirements. Assess current consumption and hysteresis needs.

Part Context

The BD5348G-TR belongs to ROHM's voltage detector family, specifically designed for supervisory circuits. It is part of the BD53xx series, characterized by adjustable delay times. This component is intended for use in applications where precise voltage monitoring and delayed reset signals are necessary. It is not recommended for new designs, indicating it is a legacy product supported for existing production lines.

Replacement Considerations

BD5248G-1 is a recommended replacement with the same pinout and package (SSOP5). It offers similar functionality but with updated specifications such as improved precision (±0.9%) and lower current consumption. Verify electrical parameter compatibility before substitution.