Datasheet

Datasheet

11/13

BD45xxx series

BD46xxx series

TSZ02201-0R7R0G300010-1-2

© 2012 ROHM Co., Ltd. All rights reserved.

18.Dec.2012 Rev.005

www.rohm.com

TSZ22111・15・001

●Circuit Applications

1) Examples of common power supply detection reset circuits.

Application examples of BD45xxx series (Open Drain

output type) and BD46xxx series (CMOS output type)

are shown below.

differs from the power supply of the reset detection

Use an open drain output type (BD45xxx) with a load

Use a CMOS output type (BD46xxx) device or an open

drain output type (BD45xxx) device 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 (BD45xxx series) to the microcontroller’s input with pull-up resistor to the supply voltage of the microcontroller

Fig.18 Open Drain Output Type

Fig.19 CMOS Output Type

GND

BD45xxx

（Noise-filtering

Capacitor）

Micro

controller

（Noise-filtering

Capacitor）

GND

BD46xxx

Micro

controller

GND

Micro

controller

BD45xxx

BD45xxx