RICOH RN5VS09AA-TL, RN5VS09AA-TR, RN5VS09AC, RN5VS09CA-TL, RN5VS13AA-TR Datasheet

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LOW VOLTAGE DETECTOR

RN5VS SERIES

APPLICATION MANUAL

ELECTRONIC DEVICES DIVISION

NO.EA-037-9701

NOTICE

1.The products and the product specifications described in this application manual are subject to change or discontinuation of production without notice for reasons such as improvement. Therefore, before deciding to use the products, please refer to Ricoh sales representatives for the latest information thereon.

2.This application manual may not be copied or otherwise reproduced in whole or in part without prior written consent of Ricoh.

3.Please be sure to take any necessary formalities under relevant laws or regulations before exporting or otherwise taking out of your country the products or the technical information described herein.

4.The technical information described in this application manual shows typical characteristics of and example application circuits for the products. The release of such information is not to be construed as a warranty of or a grant of license under Ricoh's or any third party's intellectual property rights or any other rights.

5.The products listed in this document are intended and designed for use as general electronic components in standard applications (office equipment, computer equipment, measuring instruments, consumer electronic products, amusement equipment etc.). Those customers intending to use a product in an application requiring extreme quality and reliability, for example, in a highly specific application where the failure or misoperation of the product could result in human injury or death (aircraft, spacevehicle, nuclear reactor control system, traffic control system, automotive and transportation equipment, combustion equipment, safety devices, life support system etc.) should first contact us.

6.We are making our continuous effort to improve the quality and reliability of our products, but semiconductor products are likely to fail with certain probability. In order prevent any injury to persons or damages to property resulting from such failure, customers should be careful enough to incorporate safety measures in their design, such as redundancy feature, fire-containment feature and fail-safe feature. We do not assume any liability or responsibility for any loss or damage arising from misuse or inappropriate use of the products.

7.Anti-radiation design is not implemented in the products described in this application manual.

8.Please contact Ricoh sales representatives should you have any questions or comments concerning the products or the technical information.

June 1995

RN5VS SERIES

APPLICATION MANUAL

CONTENTS

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

 

 

 

 

 

 

 

 

 

 

 

 

16

TYPICAL CHARACTERISTICS

 

 

 

 

 

1) Supply Current vs. Input Voltage

...........................................................................

16

 

 

.......................................................................

2) Detector Threshold vs. Temperature

16

3) Output Voltage vs. Input Voltage

...........................................................................

17

 

.........................................................................

4) Nch Driver Output Current vs. VDS

18

 

 

 

 

................................................................

5) Nch Driver Output Current vs. Input Voltage

19

................................................................

6) Pch Driver Output Current vs. Input Voltage

20

7) Output Delay Time vs. Load Capacitance

..................................................................

20

 

 

 

 

 

8) Output Delay Time vs. Input Pin Capacitance ..............................................................21

TYPICAL APPLICATIONS

............................................................................

 

22

• RN5VS××A CPU Reset Circuit(Nch Open Drain Output) ....................................................22

• RN5VS××C CPU Reset Circuit(CMOS Output) .............................................................22

• RN5VS××A Output delay Time Circuit 1

.....................................................................

22

• RN5VS××A Output delay Time Circuit 2

.....................................................................

22

• Memory Back-up Circuit

.....................................................................................

 

 

22

• Voltage Level Indicator Circuit (lighted when the power runs out)............................................23

• Detector Threshold Changing Circuit

........................................................................

23

• Window Comparator Circuit

.................................................................................

 

23

• Excessive Charge Preventing Circuit

........................................................................

23

 

..............................................................................

PACKAGE DIMENSIONS

 

25

 

 

...........................................................................

TAPING SPECIFICATIONS

25

LOW VOLTAGE DETECTOR

R N5VS SERIES

OUTLINE

The RN5VS Series are voltage detector ICs with high detector threshold accuracy and ultra-low supply current by CMOS process, which can be operated at an extremely low voltage and is used, for instance, for system reset.

Each of these ICs consists of a voltage reference unit, a comparator, resistors for voltage detection, an output driver and a hysteresis circuit. The detector threshold is fixed with high accuracy.

The RN5VS Series are operable by a lower voltage than that for the R×5VL Series, and can be driven by a single battery.

Two output types, Nch open drain type and CMOS type, are available. Since the package for these ICs are SOT-23-5 (Mini-mold) package, high density mounting of the ICs on board is possible.

FEATURES

• Ultra-low Supply Current

............................

TYP. 0.8µA (VDD=1.5V)

 

 

• Broad Operating Voltage Range ..................

0.7V to 10.0V (Topt =25˚C)

• Detector Threshold

........................................

Stepwise setting with a step of 0.1V in the range of 0.9V to 6.0V

 

 

 

 

 

 

 

 

..............

is possible (refer to Selection Guide).

• High Accuracy Detector Threshold

±3.0%

 

 

 

• Low Temperature-Drift Coefficien of Detector Threshold

..............

TYP. ±100ppm/˚C

• Two Output Types

.........................................

Nch Open Drain and CMOS

 

 

 

 

• Packages

.........................................................

SOT-23-5 (Mini-mold)

 

 

 

 

 

APPLICATIONS

CPU & Logic Circuit Reset

Battery Checker

Window Comparator

Wave Shaping Circuit

Battery Back-Up Circuit

Power Failure Detector

RICOH RN5VS09AA-TL, RN5VS09AA-TR, RN5VS09AC, RN5VS09CA-TL, RN5VS13AA-TR Datasheet

RN5VS

BLOCK DIAGRAMS

Nch Open Drain Output (RN5VS××A)

VDD

2

OUT

1

+

Vref

3

GND

TIME CHART

CMOS Output (RN5VS××C)

VDD

2

+

OUT

1

 

Vref

3

GND

 

Released Voltage

+VDET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Detector Threshold

 

Hysteresis

 

 

 

 

 

 

 

 

 

 

 

 

Supply Voltage

Detected Voltage

–VDET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(VDD)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Minimum Operating Voltage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output Voltage

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(OUT)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tPLH

 

 

 

DEFINITION OF OUTPUT DELAY TIME tplh

 

 

 

 

 

 

 

 

 

 

 

 

+VDET + 2.0V

 

 

 

 

 

 

 

 

 

Input Voltage

 

+VDET + 2.0V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input Voltage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(VDD)

 

 

 

 

 

 

 

 

 

 

(VDD)

 

 

 

 

 

 

 

 

 

 

 

 

 

0.7V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.7V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output Voltage

5.0V

 

 

 

 

 

 

 

 

 

Output Voltage

+VDET +2.0V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.5V

 

 

 

 

 

 

 

 

 

+VDET + 2.0V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tPHL

tPLH

 

 

tPHL

tPLH

 

 

 

 

 

 

Nch Open Drain Output

CMOS Output

 

 

 

 

RN5VS

Output Delay Time tPLH is defined as follows: 1. In the case of Nch Open Drain Output:

When the time at which a pulse voltage which increases from 0.7V to +VDET+2.0V is applied to VDD is Time A, and the time at which the output voltage reaches 2.5V under the conditions that the output pin (OUT) is pulled up to 5V by a resistor of 470kΩ is Time B, the time period from Time A through Time B.

2. In the case of CMOS Output:

When the time at which a pulse voltage which increases from 0.7V to +VDET+2.0V is applied to VDD is Time A, and the time at which the output voltage reaches the voltage of (+VDET+2.0V)/2 is Time B, the time period from Time A through Time B.

RN5VS

SELECTION GUIDE

The detector threshold, the output type, the packing type, and the taping type of RN5VS series can be designating at the user's request by specifying the part number as follows:

 

RN5VS××××× Part Number

 

}

 

 

↑ ↑ ↑

 

 

a b c

d

 

 

 

 

Code

 

 

Contents

 

 

 

a

 

Setting Detector Threshold (–VDET):

 

Stepwise setting with a step of 0.1V in the range of 0.9V to 6.0V is possible.

 

 

 

 

 

 

 

Designation of Output Type:

b

 

A: Nch Open Drain

 

 

C: CMOS

 

 

 

 

 

Designation of Packing Type:

c

 

A: Taping

 

 

C: Antistatic bag for samples

 

 

 

 

 

Designation of Taping Type:

d

 

Ex. TR, TL

 

 

(refer to Taping Specifications, the standard direction is TR.)

 

 

 

 

For example, the product with Detector Threshold 3.5V, Output Type Nch Open Drain and Taping Type TR,

is designated by Part Number RN5VS35AA-TR.

RN5VS

PIN CONFIGURATION

SOT-23-5

5

4

(mark side)

1 2 3

PIN DESCRIPTION

SOT-23-5

Pin No. Symbol

1OUT

2VDD

3GND

4NC

5NC

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