BD5338G-TR

Overview

The BD5338G-TR is a CMOS voltage detector IC from the ROHM BD53 series, designed for monitoring supply voltages with high precision. It features a typical threshold detection voltage of 3.8V and an accuracy of ±1%. The device operates within a supply voltage range of 0.95V to 10V and includes an adjustable reset delay timer controlled by an external capacitor. It utilizes an SSOP-5 package and supports a wide operating temperature range from -40°C to +105°C.

Feature Summary

• CMOS output type provides direct logic interface compatibility without requiring additional pull-up components.
• Adjustable reset delay time allows customization via an external capacitor to prevent false resets during power-up transients.
• High detection voltage accuracy ensures reliable system supervision across varying manufacturing tolerances.

Applications

• Microcontroller reset circuits requiring precise power-on sequencing
• Battery-powered devices needing low standby current consumption
• Industrial control systems operating in extended temperature environments

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to discontinuation status. Confirm RoHS compliance documentation matches specific batch requirements. Check for obsolescence notices as the part may be restricted to existing production only. Ensure packaging specifications align with automated assembly capabilities.

Selection Notes

Select this component when a fixed 3.8V threshold with CMOS output is required. Compare against BD5238G-1 if open-drain output or different delay characteristics are acceptable. Consider alternative BD53 series variants if detection voltage needs adjustment. Verify package compatibility with existing PCB footprints before finalizing design integration.

Part Context

Part of the BD53xx series offering free delay time setting capabilities. Designed as a successor or parallel option to BD52xx series with similar pinouts but differing output structures. Manufactured by ROHM Semiconductor for general-purpose power management applications requiring compact supervision solutions.

Replacement Considerations

BD5238G-1 is listed as a recommended replacement with the same pinout and package. Verify electrical parameter equivalence, particularly regarding output drive strength and delay timing characteristics, before substitution.