RX5VT datasheet(3/31 Pages) RICOH

3 / 31 page

OUTLINE ......................................................................................................1

FEATURES....................................................................................................1

APPLICATIONS .............................................................................................1

BLOCK DIAGRAMS .......................................................................................2

TIME CHART.................................................................................................2

DEFINITION OF OUTPUT DELAY TIME tPLH....................................................2

SELECTION GUIDE .......................................................................................4

PIN CONFIGURATION ...................................................................................5

PIN DESCRIPTION ........................................................................................5

ABSOLUTE MAXIMUM RATINGS ...................................................................6

ELECTRICAL CHARACTERISTICS.................................................................7

ELECTRICAL CHARACTERITICS BY DETECTOR THRESHOLD ....................10

OPERATION ................................................................................................14

TEST CIRCUITS...........................................................................................15

TYPICAL CHARACTERISTICS......................................................................16

1) Supply Current vs. Input Voltage ...........................................................................

2) Detector Threshold vs. Temperature .......................................................................

3) Output Voltage vs. Input Voltage ...........................................................................

4) Nch Driver Output Current vs. VDS .........................................................................

5) Nch Driver Output Current vs. Input Voltage................................................................

6) Pch Driver Output Current vs. Input Voltage................................................................

7) Output Delay Time vs. Load Capacitance ..................................................................

8) Output Delay Time vs. Input Pin Capacitance ..............................................................

TYPICAL APPLICATIONS ............................................................................22

• R

×5VT××A CPU Reset Circuit(Nch Open Drain Output).......................................................22

• R

×5VT××C CPU Reset Circuit(CMOS Output) ................................................................22

• R

×5VT××A Output delay Time Circuit 1 .......................................................................22

• R

×5VT××A Output delay Time Circuit 2 .......................................................................22

• Memory Back-up Circuit .....................................................................................

• Voltage Level Indicator Circuit (lighted when the power runs out)............................................

• Detector Threshold Changing Circuit ........................................................................

• Window Comparator Circuit .................................................................................

• Excessive Charge Preventing Circuit ........................................................................

×5VT SERIES

APPLICATION MANUAL

CONTENTS

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