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TSZ02201-0R7R0G300110-1-2

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

27.Aug.2013 Rev.004

www.rohm.com

TSZ22111・15・001

BD45Exxxx-M series

BD46Exxxx-M series

●Circuit Applications

1)

Examples of a common power supply detection reset circuit.

Application examples of BD45Exxxx-M series (Open

Drain output type) and BD46Exxxx-M series (CMOS

output type) are shown below.

Use an open drain output Type (BD45xx series) device

Use a CMOS output type (BD46Exxxx-M) device or an

open drain output type (BD45Exxxx-M) with a pull up

microcontroller), please take into account the waveform

2)

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

resets the microcontroller.

Fig. 20

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

output type (BD45Exxxx-M

series) to the microcontroller’s input with pull-up resistor to the supply voltage of the

possible.

Fig.18 Open Drain Output Type

Fig.19 CMOS Output Type

GND

BD45Exxxx-M

（Noise-filtering

Capacitor）

Micro

controller

（Noise-filtering

Capacitor）

GND

BD46Exxxx-M

Micro

controller

GND

Micro

controller

BD45Exxxx-M

BD45Exxxx-M