Datasheet

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BD48Exxx-M series

BD49Exxx-M series

TSZ02201-0R7R0G300070-1-2

© 2013 ROHM Co., Ltd. All rights reserved.

22.May.2013.Rev.003

www.rohm.com

TSZ22111

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15

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001

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Circuit Applications

1) Examples of a common power supply detection reset circuit.

Application examples of BD48Exxx-M series (Open

Drain output type) and BD49Exxx-M series (CMOS

output type) are shown on the left.

differs from the power supply of the reset detection

Use an open drain output type (BD48xxx-M) device with

Use a CMOS output type (BD49xxx-M) device or an

open drain device with a pull up resistor between output

and VDD1.

microcontroller), please take into account the waveform

The Electrical characteristics were measured using

2) The following is an example of a circuit application in which an OR connection between two types of detection voltage

resets the microcontroller.

To reset the microcontroller when many independent power supplies are used in the system, OR connect an open drain

output type (BD48Exxx-M series) to the microcontroller’s input with pull-up resistor to the supply voltage of the

possible.

Fig.16 CMOS Output Type

BD48Exxx-M

GND

Micro

Controller

(

Capacitor is for

noise filtering

）

(

Capacitor is for

filtering

）

BD49Exxx-M

Micro

Controller

GND

Fig.15 Open Drain Output Type

GND

Microcontroller

BD48Exxx-M

BD48Exxx-M

Fig.17