MB3773PF-G-BND-JN-ERE1

MB3773PF-G-BND-JN-ERE1 Datasheet

MB3773

Part	Datasheet
MB3773PF-G-BND-JN-ERE1	MB3773PF-G-BND-JN-ERE1 (pdf)

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FUJITSU MICROELECTRONICS DATA SHEET ASSP BIPOLAR Power Supply Monitor with Watch-Dog Timer MB3773 DS04-27401-8Ea • DESCRIPTION MB3773 generates the reset signal to protect an arbitrary system when the power-supply voltage momentarily is intercepted or decreased. It is IC for the power-supply voltage watch and “Power on reset” is generated at the normal return of the power supply. MB3773 sends the microprocessor the reset signal when decreasing more than the voltage, which the power supply of the system specified, and the computer data is protected from an accidental deletion. In addition, the watch-dog timer for the operation diagnosis of the system is built into, and various microprocessor systems can provide the fail-safe function. If MB3773 does not receive the clock pulse from the processor for a specified period, MB3773 generates the reset signal. • FEATURES • Precision voltage detection VS = V ± % • Detection threshold voltage has hysteresis function • Low voltage output for reset signal VCC = V Typ • Precision reference voltage output VR = V ± • With built-in watch-dog timer of edge trigger input. • External parts are few. 1 piece in capacity • The reset signal outputs the positive and negative both theories reason. • One type of package SOP-8pin 1 type • APPLICATION • Industrial Equipment • Arcade Amusement etc. Copyright 2003-2008 FUJITSU MICROELECTRONICS LIMITED All rights reserved MB3773 • PIN ASSIGNMENT TOP VIEW RESET RESET V REF FPT-8P-M01 MB3773 • BLOCK DIAGRAM = 100 = V COMP.S Reference Voltage Generator = µA COMP.O = 10 µA Reference AMP 6 VREF = 10 µA Inhibit WatchDog Timer RESET 4 GND MB3773 • FUNCTIONAL DESCRIPTIONS Comp.S is comparator including hysteresis. it compare the reference voltage and the voltage of Vs, so that when the voltage of Vs terminal falls below approximately V, reset signal outputs. Instantaneous breaks or drops in the power can be detected as abnormal conditions by the MB3773 within a 2 µs interval. However because momentary breaks or drops of this duration do not cause problems in actual systems in some cases, a delayed trigger function can be created by connecting capacitors to the Vs terminal. Comp.O is comparator for turning on/off the output and, compare the voltage of the CT terminal and the threshold voltage. Because the RESET/RESET outputs have built-in pull-up circuit, there is no need to connect to external pull-up resistor when connected to a high impedance load such as CMOS logic IC. It corresponds to 500 at Vcc = 5 V. when the voltage of the CK terminal changes from the “high” level into the “Low” level, pulse generator is sent to the watch-dog timer by generating the pulse momentarily at the time of drop from the threshold level. When power-supply voltages fall more than detecting voltages, the watch-dog timer becomes an interdiction. The Reference amplifier is an op-amp to output the reference voltage. If the comparator is put up outside, two or more power-supply voltage monitor and overvoltage monitor can be done. If it uses a comparator of the open-collector output, and the output of the comparator is connected with the Vs terminal of MB3773 without the pull-up resistor, it is possible to voltage monitor with reset-hold time. MB3773 • ORDERING INFORMATION Part number MB3773PF-❏❏❏ MB3773PF-❏❏❏E1 Package 8-pin plastic SOP FPT-8P-M01 8-pin plastic SOP FPT-8P-M01 Remarks Conventional version Lead Free version • RoHS Compliance Information of Lead Pb Free version The LSI products of Fujitsu Microelectronics with “E1” are compliant with RoHS Directive , and has observed the standard of lead, cadmium, mercury, Hexavalent chromium, polybrominated biphenyls PBB , and polybrominated diphenyl ethers PBDE The product that conforms to this standard is added “E1” at the end of the part number. • MARKING FORMAT Lead Free version Lead-Free version INDEX 3773 E1XXXX MB3773 • LABELING SAMPLE Lead free version lead-free mark JEITA logo JEDEC logo MB123456P - 789 - GE1 3N 1MB123456P-789-GE1 1000 3N 2 1561190005 107210 1,000 MB123456P - 789 - GE1 QC PASS 2006/03/01 ASSEMBLED IN JAPAN MB123456P - 789 - GE1 1/1 0605 - Z01A 1000 1561190005 Lead-Free version MB3773 • MB3773PF-❏❏❏E1 RECOMMENDED CONDITIONS OF MOISTURE SENSITIVITY LEVEL Item Mounting Method Mounting times Storage period Storage conditions Condition IR infrared reflow , Manual soldering partial heating method 2 times Before opening Please use it within two years after Manufacture. From opening to the 2nd reflow Less than 8 days When the storage period after opening was exceeded The contents of this document are subject to change without notice. Customers are advised to consult with sales representatives before ordering. The information, such as descriptions of function and application circuit examples, in this document are presented solely for the purpose of reference to show examples of operations and uses of FUJITSU MICROELECTRONICS device FUJITSU MICROELECTRONICS does not warrant proper operation of the device with respect to use based on such information. When you develop equipment incorporating the device based on such information, you must assume any responsibility arising out of such use of the information. FUJITSU MICROELECTRONICS assumes no liability for any damages whatsoever arising out of the use of the information. Any information in this document, including descriptions of function and schematic diagrams, shall not be construed as license of the use or exercise of any intellectual property right, such as patent right or copyright, or any other right of FUJITSU MICROELECTRONICS or any third party or does FUJITSU MICROELECTRONICS warrant non-infringement of any third-party's intellectual property right or other right by using such information. FUJITSU MICROELECTRONICS assumes no liability for any infringement of the intellectual property rights or other rights of third parties which would result from the use of information contained herein. The products described in this document are designed, developed and manufactured as contemplated for general use, including without limitation, ordinary industrial use, general office use, personal use, and household use, but are not designed, developed and manufactured as contemplated 1 for use accompanying fatal risks or dangers that, unless extremely high safety is secured, could have a serious effect to the public, and could lead directly to death, personal injury, severe physical damage or other loss i.e., nuclear reaction control in nuclear facility, aircraft flight control, air traffic control, mass transport control, medical life support system, missile launch control in weapon system , or 2 for use requiring extremely high reliability i.e., submersible repeater and artificial satellite . Please note that FUJITSU MICROELECTRONICS will not be liable against you and/or any third party for any claims or damages arising in connection with above-mentioned uses of the products. Any semiconductor devices have an inherent chance of failure. You must protect against injury, damage or loss from such failures by incorporating safety design measures into your facility and equipment such as redundancy, fire protection, and prevention of over-current levels and other abnormal operating conditions. Exportation/release of any products described in this document may require necessary procedures in accordance with the regulations of the Foreign Exchange and Foreign Trade Control Law of Japan and/or US export control laws. The company names and brand names herein are the trademarks or registered trademarks of their respective owners. Edited Strategic Business Development Dept.

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FUJITSU MICROELECTRONICS DATA SHEET

ASSP

BIPOLAR

Power Supply Monitor with Watch-Dog Timer

MB3773

DS04-27401-8Ea
• DESCRIPTION

MB3773 generates the reset signal to protect an arbitrary system when the power-supply voltage momentarily is intercepted or decreased. It is IC for the power-supply voltage watch and “Power on reset” is generated at the normal return of the power supply. MB3773 sends the microprocessor the reset signal when decreasing more than the voltage, which the power supply of the system specified, and the computer data is protected from an accidental deletion.

In addition, the watch-dog timer for the operation diagnosis of the system is built into, and various microprocessor systems can provide the fail-safe function. If MB3773 does not receive the clock pulse from the processor for a specified period, MB3773 generates the reset signal.
• FEATURES
• Precision voltage detection VS = V ± %
• Detection threshold voltage has hysteresis function
• Low voltage output for reset signal VCC = V Typ
• Precision reference voltage output VR = V ±
• With built-in watch-dog timer of edge trigger input.
• External parts are few. 1 piece in capacity
• The reset signal outputs the positive and negative both theories reason.
• One type of package SOP-8pin 1 type
• APPLICATION
• Industrial Equipment
• Arcade Amusement
etc.

Copyright 2003-2008 FUJITSU MICROELECTRONICS LIMITED All rights reserved

MB3773
• PIN ASSIGNMENT

TOP VIEW

RESET

RESET

V REF

FPT-8P-M01

MB3773
• BLOCK DIAGRAM
= 100
= V COMP.S

Reference Voltage Generator
= µA

COMP.O
= 10 µA

Reference AMP
6 VREF
= 10 µA

Inhibit WatchDog Timer

RESET
4 GND

MB3773
• FUNCTIONAL DESCRIPTIONS

Comp.S is comparator including hysteresis. it compare the reference voltage and the voltage of Vs, so that when the voltage of Vs terminal falls below approximately V, reset signal outputs. Instantaneous breaks or drops in the power can be detected as abnormal conditions by the MB3773 within a 2 µs interval. However because momentary breaks or drops of this duration do not cause problems in actual systems in some cases, a delayed trigger function can be created by connecting capacitors to the Vs terminal. Comp.O is comparator for turning on/off the output and, compare the voltage of the CT terminal and the threshold voltage. Because the RESET/RESET outputs have built-in pull-up circuit, there is no need to connect to external pull-up resistor when connected to a high impedance load such as CMOS logic IC. It corresponds to 500 at Vcc = 5 V. when the voltage of the CK terminal changes from the “high” level into the “Low” level, pulse generator is sent to the watch-dog timer by generating the pulse momentarily at the time of drop from the threshold level. When power-supply voltages fall more than detecting voltages, the watch-dog timer becomes an interdiction. The Reference amplifier is an op-amp to output the reference voltage. If the comparator is put up outside, two or more power-supply voltage monitor and overvoltage monitor can be done. If it uses a comparator of the open-collector output, and the output of the comparator is connected with the Vs terminal of MB3773 without the pull-up resistor, it is possible to voltage monitor with reset-hold time.

MB3773
• ORDERING INFORMATION

Part number MB3773PF-❏❏❏

MB3773PF-❏❏❏E1

Package
8-pin plastic SOP FPT-8P-M01
8-pin plastic SOP FPT-8P-M01

Remarks Conventional version

Lead Free version
• RoHS Compliance Information of Lead Pb Free version

The LSI products of Fujitsu Microelectronics with “E1” are compliant with RoHS Directive , and has observed the standard of lead, cadmium, mercury, Hexavalent chromium, polybrominated biphenyls PBB , and polybrominated diphenyl ethers PBDE The product that conforms to this standard is added “E1” at the end of the part number.
• MARKING FORMAT Lead Free version

Lead-Free version INDEX
3773 E1XXXX

MB3773
• LABELING SAMPLE Lead free version
lead-free mark JEITA logo JEDEC logo

MB123456P - 789 - GE1
3N 1MB123456P-789-GE1 1000
3N 2 1561190005 107210
1,000

MB123456P - 789 - GE1

QC PASS
2006/03/01

ASSEMBLED IN JAPAN

MB123456P - 789 - GE1
1/1 0605 - Z01A 1000
1561190005

Lead-Free version

MB3773
• MB3773PF-❏❏❏E1 RECOMMENDED CONDITIONS OF MOISTURE SENSITIVITY LEVEL

Item Mounting Method Mounting times

Storage period

Storage conditions

Condition

IR infrared reflow , Manual soldering partial heating method
2 times

Before opening

Please use it within two years after Manufacture.

From opening to the 2nd reflow

Less than 8 days

When the storage period after opening was exceeded
The contents of this document are subject to change without notice. Customers are advised to consult with sales representatives before ordering. The information, such as descriptions of function and application circuit examples, in this document are presented solely for the purpose of reference to show examples of operations and uses of FUJITSU MICROELECTRONICS device FUJITSU MICROELECTRONICS does not warrant proper operation of the device with respect to use based on such information. When you develop equipment incorporating the device based on such information, you must assume any responsibility arising out of such use of the information. FUJITSU MICROELECTRONICS assumes no liability for any damages whatsoever arising out of the use of the information. Any information in this document, including descriptions of function and schematic diagrams, shall not be construed as license of the use or exercise of any intellectual property right, such as patent right or copyright, or any other right of FUJITSU MICROELECTRONICS or any third party or does FUJITSU MICROELECTRONICS warrant non-infringement of any third-party's intellectual property right or other right by using such information. FUJITSU MICROELECTRONICS assumes no liability for any infringement of the intellectual property rights or other rights of third parties which would result from the use of information contained herein. The products described in this document are designed, developed and manufactured as contemplated for general use, including without limitation, ordinary industrial use, general office use, personal use, and household use, but are not designed, developed and manufactured as contemplated 1 for use accompanying fatal risks or dangers that, unless extremely high safety is secured, could have a serious effect to the public, and could lead directly to death, personal injury, severe physical damage or other loss i.e., nuclear reaction control in nuclear facility, aircraft flight control, air traffic control, mass transport control, medical life support system, missile launch control in weapon system , or 2 for use requiring extremely high reliability i.e., submersible repeater and artificial satellite . Please note that FUJITSU MICROELECTRONICS will not be liable against you and/or any third party for any claims or damages arising in connection with above-mentioned uses of the products. Any semiconductor devices have an inherent chance of failure. You must protect against injury, damage or loss from such failures by incorporating safety design measures into your facility and equipment such as redundancy, fire protection, and prevention of over-current levels and other abnormal operating conditions. Exportation/release of any products described in this document may require necessary procedures in accordance with the regulations of the Foreign Exchange and Foreign Trade Control Law of Japan and/or US export control laws. The company names and brand names herein are the trademarks or registered trademarks of their respective owners.

Edited Strategic Business Development Dept.

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived MB3773PF-G-BND-JN-ERE1 Datasheet file may be downloaded here without warranties.

Datasheet ID: MB3773PF-G-BND-JN-ERE1 635652