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M62781GP
Voltage Detecting, System Resetting IC Series
REJ03D0523-0100 Rev.1.00 May 27, 2005
Description
The M62781GP is a voltage threshold detector designed for detection of a supply voltage and generation of a system reset pulse for almost all logic circuits such as microprocessor. It also has extensive applications including battery checking, level detecting and waveform shaping circuits.
Features
* Few external parts * Low threshold operating voltage (Supply voltage to keep low-state at low supply voltage) * Wide supply voltage range 1.5V to 7.0V * Wide application range * Extra small 3-pin package (3-pin SOP) * Built-in long delay time
0.65V (Typ.) at RL=22k
Application
* * * * * * Reset pulse generation for almost all logic circuits Battery checking, level detecting, waveform shaping circuits Delayed waveform generator Switching circuit to a back-up power supply DC/DC converter Over voltage protection circuit
Recommended Operating Condition
* Supply voltage range 1.5V to 7.0V
Rev.1.00 May 27, 2005 page 1 of 4
M62781GP
Pin Arrangement
TOP VIEW 2 GND 3 1 M62781GP Outline SOT-23 SUPPLY VOLTAGE OUTPUT
Block Diagram
SUPPLY VOLTAGE
1
R1
-
R2 1.25V
OSC COUNTER
2 OUTPUT
+
3
GND
Function Diagram
SUPPLY VOLTAGE
4.00V "L"RESET TYPE
0.65V
t
H
OUTPUT STATE
L
td
td t
OUTPUT UNDEFINED
td 400msec
Rev.1.00 May 27, 2005 page 2 of 4
M62781GP
Absolute Maximum Ratings
(Ta = 25C, unless otherwise noted)
Item Supply voltage Output sink current Output voltage Power dissipation Thermal derating Operating temperature Storage temperature Symbol VCC Isink VO Pd K Topr Tstg Ratings 7 6 7 200 2 -30 to +85 -40 to +125 Unit V mA V mW mW/C C C Test Conditions
Output with open collector 3pin SOP (SOT-23) Ta 25C 3pin SOP
Electrical Characteristics
(Ta = 25C, unless otherwise noted)
Item Detecting voltage Hysteresis voltage Detecting voltage temperature coefficient Circuit current Output saturation voltage Threshold operating voltage Output leak current delay time Symbol VS VS VS/T ICC Vsat VOPL Min 3.84 50 200 Typ 4.00 80 0.01 400 0.2 0.7 0.6 400 Max 4.16 110 600 0.4 0.8 0.7 30 1 800 Unit V mV %/C A V V VCC = 5.0V VCC=3.5V, Isink=4mA,
Minimum supply voltage for operation RL=2.2k, Vsat0.4V RL=100k, Vsat0.4V
Test condition
IOH tpd
nA A ms
Ta = -30 to +85C
Example of Application Circuit
Reset Circuit of M62781GP
Vcc SUPPLY VOLTAGE OUTPUT M62781GP SUPPLY VOLTAGE
RL
RESET (RESET) LOGIC CIRCUIT
GND
GND
Note: 1. The logic circuit preferably should not have a pull-down resistor, but if one is present, add load resistor RL to overcome the pull-down resistor.
Rev.1.00 May 27, 2005 page 3 of 4
M62781GP
Package Dimensions
JEITA Package Code SC-59A RENESAS Code PLSP0003ZA-A Previous Code SC-59 MASS[Typ.] 0.011g
D
e c
E
HE L
Lp
Reference Symbol
Dimension in Millimeters Min 0 1.0 0.35 0.10 2.7 1.1 0.4 0.16 2.9 1.5 0.95 2.2 0.35 0.2 2.5 0.5 0.4 3.0 0.75 0.6 Nom Max 0.1 1.3 0.5 0.26 3.1
A1
b
A2
A1
A2 b c D E e HE L Lp
Rev.1.00 May 27, 2005 page 4 of 4
Sales Strategic Planning Div.
Keep safety first in your circuit designs!
Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
1. Renesas Technology Corp. puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble with semiconductors may lead to personal injury, fire or property damage. Remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (i) placement of substitutive, auxiliary circuits, (ii) use of nonflammable material or (iii) prevention against any malfunction or mishap. Notes regarding these materials 1. These materials are intended as a reference to assist our customers in the selection of the Renesas Technology Corp. product best suited to the customer's application; they do not convey any license under any intellectual property rights, or any other rights, belonging to Renesas Technology Corp. or a third party. 2. Renesas Technology Corp. assumes no responsibility for any damage, or infringement of any third-party's rights, originating in the use of any product data, diagrams, charts, programs, algorithms, or circuit application examples contained in these materials. 3. All information contained in these materials, including product data, diagrams, charts, programs and algorithms represents information on products at the time of publication of these materials, and are subject to change by Renesas Technology Corp. without notice due to product improvements or other reasons. It is therefore recommended that customers contact Renesas Technology Corp. or an authorized Renesas Technology Corp. product distributor for the latest product information before purchasing a product listed herein. The information described here may contain technical inaccuracies or typographical errors. Renesas Technology Corp. assumes no responsibility for any damage, liability, or other loss rising from these inaccuracies or errors. Please also pay attention to information published by Renesas Technology Corp. by various means, including the Renesas Technology Corp. Semiconductor home page (http://www.renesas.com). 4. When using any or all of the information contained in these materials, including product data, diagrams, charts, programs, and algorithms, please be sure to evaluate all information as a total system before making a final decision on the applicability of the information and products. Renesas Technology Corp. assumes no responsibility for any damage, liability or other loss resulting from the information contained herein. 5. Renesas Technology Corp. semiconductors are not designed or manufactured for use in a device or system that is used under circumstances in which human life is potentially at stake. Please contact Renesas Technology Corp. or an authorized Renesas Technology Corp. product distributor when considering the use of a product contained herein for any specific purposes, such as apparatus or systems for transportation, vehicular, medical, aerospace, nuclear, or undersea repeater use. 6. The prior written approval of Renesas Technology Corp. is necessary to reprint or reproduce in whole or in part these materials. 7. If these products or technologies are subject to the Japanese export control restrictions, they must be exported under a license from the Japanese government and cannot be imported into a country other than the approved destination. Any diversion or reexport contrary to the export control laws and regulations of Japan and/or the country of destination is prohibited. 8. Please contact Renesas Technology Corp. for further details on these materials or the products contained therein.
RENESAS SALES OFFICES
Refer to "http://www.renesas.com/en/network" for the latest and detailed information. Renesas Technology America, Inc. 450 Holger Way, San Jose, CA 95134-1368, U.S.A Tel: <1> (408) 382-7500, Fax: <1> (408) 382-7501 Renesas Technology Europe Limited Dukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, U.K. Tel: <44> (1628) 585-100, Fax: <44> (1628) 585-900 Renesas Technology Hong Kong Ltd. 7th Floor, North Tower, World Finance Centre, Harbour City, 1 Canton Road, Tsimshatsui, Kowloon, Hong Kong Tel: <852> 2265-6688, Fax: <852> 2730-6071 Renesas Technology Taiwan Co., Ltd. 10th Floor, No.99, Fushing North Road, Taipei, Taiwan Tel: <886> (2) 2715-2888, Fax: <886> (2) 2713-2999 Renesas Technology (Shanghai) Co., Ltd. Unit2607 Ruijing Building, No.205 Maoming Road (S), Shanghai 200020, China Tel: <86> (21) 6472-1001, Fax: <86> (21) 6415-2952 Renesas Technology Singapore Pte. Ltd. 1 Harbour Front Avenue, #06-10, Keppel Bay Tower, Singapore 098632 Tel: <65> 6213-0200, Fax: <65> 6278-8001
http://www.renesas.com
(c) 2005. Renesas Technology Corp., All rights reserved. Printed in Japan.
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