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ROHM Semiconductor BD46405G-TR — Microcontrollers & Processors (MCU / MPU / DSP)

BD46405G-TR Voltage Detector, 4V Threshold, Active Low

MPNBD46405G-TR
End of Life

ROHM BD46xxx series voltage detector, BD46405G-TR, 4V threshold, active-low reset, push-pull output, 45ms minimum reset timeout, -40°C to 105°C, SC-74A (SOT-753) surface-mount package.

$0.8Ref. price · indicative, final on quote
ROHM Semiconductor BD46405G-TR datasheet (PDF)
PackagingSC-74A, SOT-753
RoHSROHS3 Compliant
SeriesBD46xxx
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BD46405G-TR specifications
ParameterValue
TypeVoltage Detector
SeriesBD46xxx
MountingSurface Mount
Voltage - threshold4V
Number of voltages monitored1
Operating temperature-40°C ~ 105°C (TA)
ResetActive Low
OutputPush-Pull, Totem Pole
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeout45ms Minimum
CaseSC-74A, SOT-753

Product details

4V threshold voltage detector with push-pull reset

The ROHM BD46405G-TR is a single-channel voltage detector from the BD46xxx series that monitors a supply rail and asserts an active-low reset when the voltage drops below 4V. The push-pull output stage drives the reset signal without an external pull-up resistor, saving one component per rail. A minimum 45ms reset timeout holds the processor in reset after the supply recovers, giving the oscillator and PLL time to stabilize before code execution starts.

Frequently asked questions

What is the reset timeout of BD46405G-TR?

The reset timeout is 45ms minimum. After the supply voltage rises above the threshold, the reset output remains low for at least 45ms before releasing, giving the system time to stabilize.

What is the output configuration of BD46405G-TR?

The output is push-pull, totem pole, active low. This means the reset signal is driven high and low without needing an external pull-up resistor.