BD5315G-2MTR

Overview

The BD5315G-2MTR is a CMOS reset IC from ROHM Semiconductor's Nano Energy series, designed for automotive applications. It features an adjustable delay timer and operates within a supply voltage range of 0.8 V to 6 V. The typical under-voltage detection threshold is 1.5 V with a precision of ±2% (±12 mV). It utilizes an SSOP-5 package and consumes 0.23 µA in the ON state and 0.27 µA in the OFF state at VDET=4.8 V. The device supports an operating temperature range of -40°C to 105°C and includes hysteresis voltage set at VDET x 0.05.

Feature Summary

• Adjustable delay time via external capacitor
• High-precision voltage detection with low power consumption
• Automotive-grade reliability with AEC-Q100 qualification

Applications

• Automotive electronic control units
• Power supply monitoring systems
• Microcontroller reset circuits

Procurement Notes

Verify the specific suffix '2MTR' corresponds to the tape-and-reel packaging format and standard product configuration. Confirm that the 1.5 V detection voltage aligns with system requirements. Ensure compatibility with SSOP-5 footprint during PCB layout. Check for any recent lifecycle status updates or obsolescence notices directly from ROHM Semiconductor documentation before finalizing procurement plans.

Selection Notes

Select this component when a precise 1.5 V detection threshold is required for automotive environments. The adjustable delay feature allows customization for specific startup sequences. Compare current consumption specifications against other Nano Energy series variants if ultra-low power is critical. Ensure the CMOS output type meets the input requirements of the downstream logic circuitry.

Part Context

This part belongs to the BD53xxG-M series of voltage detectors with adjustable delay times. It complements the BD52xxG-M series, which offers open-drain outputs instead of CMOS. Both series share similar low-power characteristics and automotive qualifications, providing design flexibility based on output drive requirements.

Replacement Considerations

BD53E35G-M is listed as obsolete with BD5335G-2CGTR as a recommended replacement, but detection voltages differ significantly. Direct pin-compatible substitutes with identical 1.5 V thresholds should be verified through official ROHM cross-reference tools.