MCP121

The MCP121 Series of CMOS voltage detectors are well suited for many portable and consumer electrics applications due to the extremely low 1uA operating current and small surface-mount packaging. These devices are designed to hold the microcontroller in reset until the supply voltage reaches a predetermined operating level. These devices also protect against brownout conditions that occur as a result of the supply voltage dropping below a tolerable level.

Features
  • Operating current: 1.75uA (max)
  • Wide Voltage range: 1.0V to 5.5V
  • Available Trip Points: 1.9V, 2.32V, 2.63V, 2.93V, 3.08V, 4.38V, 4.63V
  • Trip point accuracy: +/- 1.5%
  • Output Options: Open-Drain
  • Package options: SOT23-3, SC70-3, TO92-3
Parameter
Parameter Name Value Value
Typical Reset Pulse Width (ms) 120 120
Reset Type Active Low Active Low
Typical Supply Current (uA) 1 1
Vcc Range Min (V) 1 1
Vcc Range Max (V) 5.5 5.5
Output Open-Drain Open-Drain
Temp Range Min. (°C) -40 -40
Temp Range Max. (°C) 125 125
Nominal Reset Voltage (V) 1.87, 2.29, 2.59, 2.86, 2.87, 3.03, 4.31, 4.56 1.87, 2.29, 2.59, 2.86, 2.87, 3.03, 4.31, 4.56
Documents
MCP102/103/121/131 Data SheetData Sheets02/28/2014659KB
AN686 - Understanding and Using Supervisory CircuitsAppNote05/13/200384KB
AN820 - System Supervisors in ICSP™ ArchitecturesAppNote10/05/2006111KB
MCP111/121 Tech BriefTech Briefs03/28/2005301KB
Analog & Interface Guide (Volume 2)Brochures10/11/20051067KB
Analog Solutions for Automotive Applications Design GuideBrochures12/08/2009284KB
Quick Guide to Microchip Development ToolsBrochures10/15/201411223KB
Low Power Analog SolutionsSell Sheets05/16/2011120KB
Microcontroller Supervisor Family Product OverviewProduct Line Documents06/13/200691KB
Analog & Interface Product Selector GuideProduct Line Card03/21/20164116KB
Voltage Supervisor SOT23 Evaluation Board User's GuideUser Guides08/02/2006809KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MCP121-195I/TO3TO-92-40C to +85CBAG0.500.420.380.320.29
MCP121-240E/TO3TO-92-40C to +125CBAG0.500.420.380.320.29
MCP121-270E/TO3TO-92-40C to +125CBAG0.500.420.380.320.29
MCP121-300E/TO3TO-92-40C to +125CBAG0.500.420.380.320.29
MCP121-315E/TO3TO-92-40C to +125CBAG0.500.420.380.320.29
MCP121-450E/TO3TO-92-40C to +125CBAG0.500.420.380.320.29
MCP121-475E/TO3TO-92-40C to +125CBAG0.500.420.380.320.29
MCP121T-195I/LB3SC70-40C to +85CT/R0.500.420.380.320.29
MCP121T-195I/TT3SOT-23-40C to +85CT/R0.500.420.380.320.29
MCP121T-240E/LB3SC70-40C to +125CT/R0.500.420.380.320.29
MCP121T-240E/TT3SOT-23-40C to +125CT/R0.500.420.380.320.29
MCP121T-270E/LB3SC70-40C to +125CT/R0.500.420.380.320.29
MCP121T-270E/TT3SOT-23-40C to +125CT/R0.500.420.380.320.29
MCP121T-300E/LB3SC70-40C to +125CT/R0.500.420.380.320.29
MCP121T-300E/TT3SOT-23-40C to +125CT/R0.500.420.380.320.29
MCP121T-315E/LB3SC70-40C to +125CT/R0.500.420.380.320.29
MCP121T-315E/TT3SOT-23-40C to +125CT/R0.500.420.380.320.29
MCP121T-450E/LB3SC70-40C to +125CT/R0.500.420.380.320.29
MCP121T-450E/TT3SOT-23-40C to +125CT/R0.500.420.380.320.29
MCP121T-475E/LB3SC70-40C to +125CT/R0.500.420.380.320.29
MCP121T-475E/TT3SOT-23-40C to +125CT/R0.500.420.380.320.29
相关开发工具
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MCP121-195I/TO0.2034000.2190003TO-92-Matte Tine3
MCP121-240E/TO0.2034000.2190003TO-92-Matte Tine3
MCP121-270E/TO0.2034000.2190003TO-92-Matte Tine3
MCP121-300E/TO0.2034000.2190003TO-92-Matte Tine3
MCP121-315E/TO0.2034000.2190003TO-92-Matte Tine3
MCP121-450E/TO0.2034000.2190003TO-92-Matte Tine3
MCP121-475E/TO0.2034000.2190003TO-92-Matte Tine3
MCP121T-475E/LB0.0058000.0400003SC70-Matte Tine3
MCP121T-300E/LB0.0058000.0400003SC70-Matte Tine3
MCP121T-315E/LB0.0058000.0400003SC70-Matte Tine3
MCP121T-450E/LB0.0058000.0400003SC70-Matte Tine3
MCP121T-195I/LB0.0058000.0400003SC70-Matte Tine3
MCP121T-240E/LB0.0058000.0400003SC70-Matte Tine3
MCP121T-270E/LB0.0058000.0400003SC70-Matte Tine3
MCP121T-195I/TT0.0083000.0390003SOT-23-Matte Tine3
MCP121T-270E/TT0.0083000.0390003SOT-23-Matte Tine3
MCP121T-240E/TT0.0083000.0390003SOT-23-Matte Tine3
MCP121T-450E/TT0.0083000.0390003SOT-23-Matte Tine3
MCP121T-475E/TT0.0083000.0390003SOT-23-Matte Tine3
MCP121T-300E/TT0.0083000.0390003SOT-23-Matte Tine3
MCP121T-315E/TT0.0083000.0390003SOT-23-Matte Tine3
MCP121T-416E/TT0.0083000.0390003SOT-23-Matte Tine3
MCP121T-315E/TTVAO0.0083000.0390003SOT-23-Matte Tine3
MCP121-475E/SNG0.0780000.1700008SOIC.150inMatte Tine3
MCP121-450E/SNG0.0780000.1700008SOIC.150inMatte Tine3
MCP121-315E/SNG0.0780000.1700008SOIC.150inMatte Tine3
MCP121-300E/SNG0.0780000.1700008SOIC.150inMatte Tine3
MCP121-195I/SNG0.0780000.1700008SOIC.150inMatte Tine3
MCP121-240E/SNG0.0780000.1700008SOIC.150inMatte Tine3
MCP121-270E/SNG0.0780000.1700008SOIC.150inMatte Tine3
MCP102/103/121/131 Data Sheet MCP131
AN686 MCP112
AN820 MCP112
MCP111/121 Tech Brief MCP111
Analog & Interface Guide (Volume 2) MCP23S08
Analog Solutions for Automotive Applications Design Guide MCP2022
Quick Guide to Microchip Development Tools ENC28J60
Low Power Analog Solutions MCP3551
Microcontroller Supervisor Family Product Overview TCM810
Analog & Interface Product Selector Guide ENC624J600
Voltage Supervisor SOT23 Evaluation Board User's Guide VSUPEV