MB3773
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MB3773PF-GT-BND-K5ERE1 (pdf) |
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MB3773PH-G-JNE1 |
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MB3773PF-GT-BNDK5E1 |
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MB3773 Power Supply Monitor with Watch-Dog Timer 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. • San Jose, CA 95134-1709 • 408-943-2600 MB3773 Contents Description 1 Features 1 Application 1 Contents 2 Pin Assignment 3 Block Diagram 3 Functional Descriptions 4 Operation Sequence 6 Absolute Maximum Ratings 7 Recommended Operating Conditions 7 Electrical Characteristics 8 DC Characteristics 8 AC Characteristics 9 Typical Characteristic Curves 10 Application Circuit 13 Notes on Use 25 Ordering Information 25 RoHS Compliance Information of Lead Pb Free version 25 Package Dimension 26 Document History 27 Sales, Solutions, and Legal Information 28 Page 2 of 28 Pin Assignment CT RESET CK GND TOP VIEW SOE008 RESET VS VREF VCC MB3773 Block Diagram V COMP.S Reference Voltage Generator COMP.O 10 uA Reference AMP 6 VREF 10 uA 40 kΩ Inhibit WatchDog Timer RESET 4 GND Page 3 of 28 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 us 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 RESET/RESET outputs 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. Page 4 of 28 MB3773 Basic Operation RESET RESET MB3773 Logic Circuit RESET CK TPR ms 1000 • CT uF TWD ms 100 • CT uF TWR ms 20 • CT uF Example CT = uF TRR ms 100 ms TWD ms 10 ms TWR ms 2 ms VCC VSH VSL TCK CT RESET 11 12 Page 5 of 28 MB3773 Ordering Information Part number MB3773PF-❏❏❏E1 Package 8-pin plastic SOP SOE008 Remarks RoHS Compliance Information of Lead Pb Free version The LSI products of Cypress 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. Page 25 of 28 Package Dimension Package Code SOE008 MB3773 INDEX AREA A A1 10 4 E1 E TOP VIEW C A-B D BOTTOM VIEW DETAIL A b SIDE VIEW SEATING PLANE C C A-B D 8 GAUGE PLANE A' L L1 DETAIL A b SECTION A-A' DIMENSION SYMBOL MIN. NOM. MAX. 1 27 6 / / ' , 0 1 6 , 2 1 6 5 , 1 0 , / / , 0 7 5 ' , 0 1 6 , 2 1 , 1 * 1 ' 7 2 / 5 1 & , 1 * 3 5 6 0 < 0 ' , 0 1 6 , 2 1 , 1 * ' , 1 & / 8 ' 0 2 / ' / 6 + ' , 0 1 6 , 2 1 , 1 * ' 2 6 1 2 7 , 1 & / 8 ' , 1 7 5 / ' / 6 + 2 5 3 5 2 7 5 8 6 , 2 1 , 1 7 5 / ' / 6 + 2 5 3 5 2 7 5 8 6 , 2 1 6 + / / 1 2 7 & ' P 3 5 6 , ' ' D Q G ' , 0 1 6 , 2 1 5 ' 7 5 0 , 1 ' ' 7 8 0 + 7 + 3 & * 7 2 3 0 < % 6 0 / / 5 7 + 1 7 + 3 & * % 2 7 2 0 ' , 0 1 6 , 2 1 , 1 * D Q 5 ' 7 5 0 , 1 7 + 2 8 7 5 0 2 6 7 5 0 2 7 + 3 / 6 7 , % 2 ' & / 8 6 , 9 2 0 2 / / 6 + 7 + % 5 % 8 5 6 * 7 % 8 5 6 1 ' , 1 7 5 / ' / 6 + % 8 7 , 1 & / 8 ' , 1 * 1 0 , 6 0 7 & % 7 + 7 2 1 % 2 7 2 0 2 7 + 3 / 6 7 , % 2 ' < ' 7 8 0 6 % 7 2 % ' 7 5 0 , 1 ' 7 ' 7 8 0 + 1 , 6 7 + 0 , 0 8 0 1 8 0 % 5 2 7 5 0 , 1 / 3 2 6 , 7 , 2 1 6 2 5 7 + 6 3 & , , ' 3 & * / 1 * 7 + 7 + ' , 0 1 6 , 2 1 3 / < 7 2 7 + / 7 6 & 7 , 2 1 2 7 + / ' % 7 1 P 7 2 P 5 2 0 7 + / 7 , 3 ' , 0 1 6 , 2 1 E ' 2 6 1 2 7 , 1 & / 8 ' 7 + ' 0 % 5 3 5 2 7 5 8 6 , 2 1 / / 2 % / ' 0 % 5 3 5 2 7 5 8 6 , 2 1 6 + / / % P 7 2 7 / , 1 & 6 2 7 + E ' , 0 1 6 , 2 1 0 , 0 8 0 7 5 , & 2 1 ' , 7 , 2 1 7 + ' 0 % 0 1 2 % / 2 & 7 2 7 + / 2 5 ' , 8 2 7 + 2 7 7 + , 6 & + 0 5 7 8 5 , 6 2 3 7 , 2 1 / / , 7 , 6 1 2 7 3 5 6 1 7 + 1 3 , 1 , ' 1 7 , , 0 8 6 % / 2 & 7 , 7 + , 7 + , 1 ' 5 , 1 ' , & 7 ' , 6 ' , 1 ' 6 7 + 9 5 7 , & / ' , 6 7 1 & 5 2 0 7 + 6 7 , 1 * 3 / 1 7 2 7 + / 2 6 3 2 , 1 2 7 + 3 & * % 2 ' & / 8 ' , 1 * 7 + / , 1 2 5 7 + 5 0 1 + 1 & 0 1 2 & 9 , 7 ' 2 3 & * & 2 1 , * 8 5 7 , 2 1 6 JEDEC SPECIFICATION NO. REF N/A Page 26 of 28 MB3773 Updated Ordering Information Change the package name from FPT-8P-M01 to SOE008 Updated Package Dimension Updated to Cypress format 5592858 HIXT 01/23/2017 Deleted “Marking Format Lead Free version ” Deleted “Labeling Sample Lead free version ” Deleted “MB3773PF-❏❏❏E1 Recommended Conditions of Moisture Sensitivity Level” Deleted the part number, “MB3773PF-❏❏❏”, from Ordering Information Deleted the words in the Remarks, “Lead Free version”, from Ordering Information 5788613 MASG 06/28/2017 Adapted Cypress new logo. Page 27 of 28 MB3773 Sales, Solutions, and Legal Information Worldwide Sales and Design Support Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. To find the office closest to you, visit us at Cypress Locations. Products Solutions Microcontrollers cypress.com/arm PSoC 1 | PSoC 3 | PSoC 4 | PSoC 5LP | PSoC 6 Automotive Clocks & Buffers Interface cypress.com/automotive cypress.com/clocks cypress.com/interface Cypress Developer Community Forums | WICED IOT Forums | Projects | Video | Blogs | Training | Components Internet of Things Memory Microcontrollers cypress.com/iot cypress.com/memory cypress.com/mcu Technical Support cypress.com/support PSoC cypress.com/psoc Power Management ICs cypress.com/pmic Touch Sensing cypress.com/touch USB Controllers cypress.com/usb Wireless/RF cypress.com/wireless ARM and Cortex are the registered trademarks of ARM Limited in the EU and other countries. Cypress Semiconductor Corporation, This document is the property of Cypress Semiconductor Corporation and its subsidiaries, including Spansion LLC “Cypress” . This document, including any software or firmware included or referenced in this document “Software” , is owned by Cypress under the intellectual property laws and treaties of the United States and other countries worldwide. Cypress reserves all rights under such laws and treaties and does not, except as specifically stated in this paragraph, grant any license under its patents, copyrights, trademarks, or other intellectual property rights. If the Software is not accompanied by a license agreement and you do not otherwise have a written agreement with Cypress governing the use of the Software, then Cypress hereby grants you a personal, non-exclusive, nontransferable license without the right to sublicense 1 under its copyright rights in the Software a for Software provided in source code form, to modify and reproduce the Software solely for use with Cypress hardware products, only internally within your organization, and b to distribute the Software in binary code form externally to end users either directly or indirectly through resellers and distributors , solely for use on Cypress hardware product units, and 2 under those claims of Cypress’s patents that are infringed by the Software as provided by Cypress, unmodified to make, use, distribute, and import the Software solely for use with Cypress hardware products. Any other use, reproduction, modification, translation, or compilation of the Software is prohibited. TO THE EXTENT PERMITTED BY APPLICABLE LAW, CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS DOCUMENT OR ANY SOFTWARE OR ACCOMPANYING HARDWARE, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. To the extent permitted by applicable law, Cypress reserves the right to make changes to this document without further notice. Cypress does not assume any liability arising out of the application or use of any product or circuit described in this document. Any information provided in this document, including any sample design information or programming code, is provided only for reference purposes. It is the responsibility of the user of this document to properly design, program, and test the functionality and safety of any application made of this information and any resulting product. Cypress products are not designed, intended, or authorized for use as critical components in systems designed or intended for the operation of weapons, weapons systems, nuclear installations, life-support devices or systems, other medical devices or systems including resuscitation equipment and surgical implants , pollution control or hazardous substances management, or other uses where the failure of the device or system could cause personal injury, death, or property damage “Unintended Uses” . A critical component is any component of a device or system whose failure to perform can be reasonably expected to cause the failure of the device or system, or to affect its safety or effectiveness. Cypress is not liable, in whole or in part, and you shall and hereby do release Cypress from any claim, damage, or other liability arising from or related to all Unintended Uses of Cypress products. You shall indemnify and hold Cypress harmless from and against all claims, costs, damages, and other liabilities, including claims for personal injury or death, arising from or related to any Unintended Uses of Cypress products. Cypress, the Cypress logo, Spansion, the Spansion logo, and combinations thereof, WICED, PSoC, CapSense, EZ-USB, F-RAM, and Traveo are trademarks or registered trademarks of Cypress in the United States and other countries. For a more complete list of Cypress trademarks, visit cypress.com. Other names and brands may be claimed as property of their respective owners.. Page 28 of 28 |
More datasheets: CY14B101L-SP45XI | CY14B101L-SP45XC | CY14B101L-SP35XI | CY14B101L-SP35XC | CY14B101L-SZ45XI | DM74AS280N | DM74AS280MX | DM74AS280M | MB3773PH-G-JNE1 | MB3773PF-GT-BNDK5E1 |
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