BD53E29G-TR

Overview

The BD53E29G-TR is a CMOS output voltage detector IC from ROHM Semiconductor, featuring a typical detection threshold of 2.9V with ±1% accuracy. It operates within a supply voltage range of 0.95V to 10V and consumes ultra-low current of 0.85µA (typical at Vdet=4.8V). The device includes an adjustable reset delay timer controlled by an external capacitor and lacks manual reset or watchdog functions. Packaged in SSOP-5, it supports operation from -40°C to +105°C.

Feature Summary

• CMOS push-pull output type for direct logic interfacing
• Adjustable reset delay time via external capacitor connection
• High precision detection voltage with ±1% tolerance
• Ultra-low power consumption suitable for battery applications

Applications

• Microcontroller system reset circuits requiring specific voltage thresholds
• Logic circuit supervision for under-voltage protection
• Battery-powered devices needing low standby current monitoring

Procurement Notes

Verify the NRND status indicating non-recommendation for new designs before procurement. Confirm package integrity and RoHS compliance through official datasheets. Check for AEC-Q100 qualification if automotive application is required. Ensure external capacitor selection aligns with desired delay timing specifications.

Selection Notes

Select this component when a fixed 2.9V threshold with high accuracy is required. Choose over BD52 series variants if CMOS output is preferred over open-drain. Consider the adjustable delay feature for noise immunity needs. Verify thermal performance within the specified operating temperature range for the target environment.

Part Context

Part of the BD53Exxx series offering free delay time setting capabilities. Designed as a highly accurate, low-current voltage detector. Complements the BD52Exxx series which provides N-channel open drain outputs. Utilizes SSOP-5 packaging similar to SOT-23-5 dimensions.

Replacement Considerations

BD5229G-1 offers similar pinout and package but features open-drain output instead of CMOS.