MB3793-45PNF-G-JN-6E1

MB3793-45PNF-G-JN-6E1 Datasheet

MB3793-45

Part	Datasheet
MB3793-45PNF-G-JN-6E1	MB3793-45PNF-G-JN-6E1 (pdf)

Related Parts	Information
MB3793-45PF-G-JN-ER-6E1	MB3793-45PF-G-JN-ER-6E1
MB3793-45PF-G-BND-JN-6E1	MB3793-45PF-G-BND-JN-6E1

PDF Datasheet Preview
DS04-27405-1E ASSP For Power Supply Applications BIPOLAR Power Voltage Monitoring IC with Watchdog Timer MB3793-45 s DESCRIPTION The MB3793 is an integrated circuit to monitor power voltage it incorporates a watchdog timer. A reset signal is output when the power is cut or falls abruptly. When the power recovers normally after resetting, a power-on reset signal is output to microprocessor units MPUs . An internal watchdog timer with two inputs for system operation diagnosis can provide a fall-safe function for various application systems. There is also a mask option that can detect voltages of to V in 0.1-V steps. The model number is MB3793-45 corresponding to the detected voltage. The model number and package code are as shown below. Model No. Package code Detection voltage MB3793-45 3793-7 s FEATURES • Precise detection of power voltage fall • Detection voltage with hysteresis • Low power dispersion ICC = 31 µA reference • Internal dual-input watchdog timer • Watchdog-timer halt function by inhibition pin • Independently-set wacthdog and reset times s PACKAGE 8-pin plastic SOP 8-pin plastic SOL FPT-8P-M01 FPT-8P-M02 MB3793-45 s PIN ASSIGNMENT Top view RESET 8 CK1 7 CK2 6 INH FPT-8P-M01 FPT-8P-M02 s PIN DESCRIPTION Pin no. 1 2 Symbol RESET CTP GND Descriptions Outputs reset pin Watchdog timer monitor time setting pin Power-on reset hold time setting pin Ground pin Pin no. Symbol s ORDERING INFORMATION Part number MB3793-45PF MB3793-45PNF Package 8-pin Plastic SOP FPT-8P-M01 8-pin Plastic SOL FPT-8P-M02 MB3793-45 Remarks MB3793-45 s PACKAGE DIMENSIONS 8-pin plastic SOP FPT-8P-M01 INDEX 3.81 .150 REF C 2000 FUJITSU LIMITED F08002S-4C-5 2.25 .089 MAX Mounting height 0.05 .002 MIN STAND OFF Details of "A" part 0.18 .007 MAX 0.68 .027 MAX Dimensions in mm inches Continued MB3793-45 Continued 8-pin plastic SOL FPT-8P-M02 45° Mounting height STAND OFF 1.27 .050 TYP "A" 3.81 .150 REF Details of "A" part 0.18 .007 MAX 0.65 .026 MAX C 2000 FUJITSU LIMITED F08004S-2C-5 Dimensions in mm inches MB3793-45 FUJITSU LIMITED All Rights Reserved. The contents of this document are subject to change without notice. Customers are advised to consult with FUJITSU sales representatives before ordering. The information and circuit diagrams in this document are presented as examples of semiconductor device applications, and are not intended to be incorporated in devices for actual use. Also, FUJITSU is unable to assume responsibility for infringement of any patent rights or other rights of third parties arising from the use of this information or circuit diagrams. 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 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. If any products described in this document represent goods or technologies subject to certain restrictions on export under the Foreign Exchange and Foreign Trade Law of Japan, the prior authorization by Japanese government will be required for export of those products from Japan. F0007 FUJITSU LIMITED Printed in Japan

PDF Datasheet Preview

DS04-27405-1E

ASSP For Power Supply Applications

BIPOLAR

Power Voltage Monitoring IC
with Watchdog Timer

MB3793-45
s DESCRIPTION

The MB3793 is an integrated circuit to monitor power voltage it incorporates a watchdog timer.

A reset signal is output when the power is cut or falls abruptly. When the power recovers normally after resetting, a power-on reset signal is output to microprocessor units MPUs . An internal watchdog timer with two inputs for system operation diagnosis can provide a fall-safe function for various application systems.

There is also a mask option that can detect voltages of to V in 0.1-V steps.

The model number is MB3793-45 corresponding to the detected voltage. The model number and package code are as shown below.

Model No.

Package code

Detection voltage

MB3793-45
3793-7
s FEATURES
• Precise detection of power voltage fall
• Detection voltage with hysteresis
• Low power dispersion ICC = 31 µA reference
• Internal dual-input watchdog timer
• Watchdog-timer halt function by inhibition pin
• Independently-set wacthdog and reset times
s PACKAGE
8-pin plastic SOP
8-pin plastic SOL

FPT-8P-M01

FPT-8P-M02

MB3793-45
s PIN ASSIGNMENT

Top view

RESET
8 CK1
7 CK2
6 INH

FPT-8P-M01 FPT-8P-M02
s PIN DESCRIPTION

Pin no. 1 2

Symbol RESET

CTP GND

Descriptions

Outputs reset pin

Watchdog timer monitor time setting pin

Power-on reset hold time setting pin

Ground pin

Pin no. Symbol
s ORDERING INFORMATION

Part number MB3793-45PF

MB3793-45PNF

Package
8-pin Plastic SOP FPT-8P-M01
8-pin Plastic SOL FPT-8P-M02

MB3793-45

Remarks

MB3793-45
s PACKAGE DIMENSIONS
8-pin plastic SOP FPT-8P-M01

INDEX
3.81 .150 REF

C 2000 FUJITSU LIMITED F08002S-4C-5
2.25 .089 MAX Mounting height
0.05 .002 MIN STAND OFF

Details of "A" part
0.18 .007 MAX 0.68 .027 MAX

Dimensions in mm inches

Continued

MB3793-45

Continued
8-pin plastic SOL FPT-8P-M02
45°

Mounting height

STAND OFF
1.27 .050 TYP
"A" 3.81 .150 REF

Details of "A" part
0.18 .007 MAX 0.65 .026 MAX

C 2000 FUJITSU LIMITED F08004S-2C-5

Dimensions in mm inches

MB3793-45

FUJITSU LIMITED

All Rights Reserved.
The contents of this document are subject to change without notice. Customers are advised to consult with FUJITSU sales representatives before ordering.

The information and circuit diagrams in this document are presented as examples of semiconductor device applications, and are not intended to be incorporated in devices for actual use. Also, FUJITSU is unable to assume responsibility for infringement of any patent rights or other rights of third parties arising from the use of this information or circuit diagrams.

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 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.

If any products described in this document represent goods or technologies subject to certain restrictions on export under the Foreign Exchange and Foreign Trade Law of Japan, the prior authorization by Japanese government will be required for export of those products from Japan.

F0007 FUJITSU LIMITED Printed in Japan

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 MB3793-45PNF-G-JN-6E1 Datasheet file may be downloaded here without warranties.

Datasheet ID: MB3793-45PNF-G-JN-6E1 635655