Datasheet

Datasheet

7/14

BD71L4L-1series

TSZ02201-0R7R0G300030-1-2

© 2014 ROHM Co., Ltd. All rights reserved.

31.Jan.2014.Rev.004

www.rohm.com

TSZ22111・15・001

Application Information

Explanation of Operation

The detection and release voltages are used as threshold voltages. When the voltage applied to the VDD pins reaches the

appropriate threshold voltage, the OUT terminal voltage switches from either “High” to “Low” or from “Low” to “High”. Please

refer to the Timing Waveform and Electrical Characteristics for information on hysteresis.

Because the BD71L4L-1 uses an open drain output type, it is necessary to connect a pull-up resistor to VDD or another

supply].

Figure 14. Internal Block Diagram

Timing Waveform

1

When the power supply is turned on, the output is unstable

Therefore it is possible that the reset signal is not outputted when

2

3

switches from H to L.

4

power supply is powered down or when there is a power supply

5

The potential difference between the detection voltage and the

release voltage is known as the hysteresis width (

Figure 15. Timing Waveform

Vref

R1

R2

VDD

GND

Q1

VOUT

R3

0V