BD5238G-2CGTR

Overview

The BD5238G-2CGTR is a Nano Energy™ CMOS voltage detector (reset IC) from ROHM, featuring adjustable delay time controlled by an external capacitor. It utilizes Nch open-drain output and offers a typical under-voltage detection voltage of 3.8V with ±3% precision. The reset active state is low, with a reset active voltage range of 0.8V to 6V. Hysteresis voltage is defined as VDET x 0.05. Output currents are 1mA at low voltage and 2mA at high voltage. Operating current is 0.23µA (ON) and 0.27µA (OFF). It supports automotive applications, operates from -40°C to 125°C, and comes in an SSOP5 package.

Feature Summary

• Adjustable reset delay time via external capacitor
• High precision voltage detection with low power consumption
• Automotive-grade functional safety support

Applications

• Automotive electronic system monitoring
• Microcontroller reset circuits
• Power supply supervision

Procurement Notes

Verify the specific suffix 'GTR' corresponds to the tape and reel packaging format containing 3000 units per reel. Confirm that the component meets AEC-Q100 automotive qualification standards if required for your application. Ensure the external capacitor selection aligns with the desired delay time specifications provided in the official datasheet. Check RoHS compliance status for environmental regulations.

Selection Notes

Select this component when an adjustable delay timer is required for reset sequencing in automotive or industrial environments. The Nch open-drain output allows for flexible interfacing with various logic levels within the 0.8V to 6V range. Consider the low operating current for battery-powered systems. Verify that the SSOP5 package fits the PCB layout constraints and thermal requirements of the design.

Part Context

This part belongs to the BD52xx-2C series of Nano Energy™ CMOS voltage detectors. It is designed for high-precision monitoring with adjustable delay capabilities. The series includes both Nch open-drain and CMOS output variants to suit different application needs. It is characterized by ultra-low current consumption and wide operating temperature ranges suitable for demanding environments.

Replacement Considerations

The BD5238FVE is listed as a similar level replacement with the same pinout, though it features a VSOF5 package instead of SSOP5. Note that the BD5238FVE has different hysteresis characteristics and higher operating current compared to the BD5238G-2CGTR. Verify package compatibility and electrical parameter differences before substitution.