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MCP120

Microcontroller Supervisory Circuit with Open Drain Output

Status: In Production

Features:

  • Holds microcontroller in reset until supply voltage reaches stable operating level
  • Resets microcontroller during power loss
  • Precision monitoring of 3V, 3.3V and 5V systems
  • 7 voltage trip points available
  • Active low RESET pin
  • Open drain output
  • Internal pull-up resistor (5 kohm) for MCP130
  • Holds RESET for 35kΩ (typical)
  • RESET to VCC = 1.0V
  • Accuracy of +(-)125mV for 5V systems and +(-)75mV for 3V systems over temp
  • 45uA typical operating current
  • Industrial (I): -40C to +85C
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MCP120 is a voltage supervisory device designed to keep a microcontroller in reset until the system voltage has reached the proper level and stabilized. It also operates as protection from brown-out conditions when the supply voltage drops below a safe operating level. MCP120 features an open drain output, and active low reset and is available in a choice of seven different trip voltages. It operates over the extended industrial temperature range (-40°C/+85°C). MCP120 is available in a TO-92, SOT23-3, and SN packages.

Additional Features
    • Holds microcontroller in reset until supply voltage reaches stable operating level
    • Resets microcontroller during power loss
    • Precision monitoring of 3V, 3.3V and 5V systems
    • 7 voltage trip points available
    • Active low RESET pin
    • Open drain output
    • Internal pull-up resistor (5 kohm) for MCP130
    • Holds RESET for 35kΩ (typical)
    • RESET to VCC = 1.0V
    • Accuracy of +(-)125mV for 5V systems and +(-)75mV for 3V systems over temp
    • 45uA typical operating current
    • Temperature range:
      • Industrial (I): -40C to +85C
Parametrics
Name
Value
Product Type
Supervisor
Operating Temp. Range (°C)
-40 to 85
Vcc Range (V)
1.0 - 5.5
Nominal Reset Voltage (V)
2.7, 3, 3.15, 4.5, 4.6, 4.75, 4.85
Reset Type
Active Low
Output
Open-Drain
Typical Reset Pulse Width (ms)
350
Typical Supply Current (µA)
45

Documents

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Data Sheets

MCP120/30 Datasheet
  
221KB

Application Notes

AN820 - System Supervisors in ICSP™ Architectures
  
111KB

Brochures

Analog and Interface Product Selector Guide
  
5052KB
Quick Guide to Microchip Development Tools
  
6020KB
Analog Solutions for Automotive Applications Design Guide
  
284KB
Microcontroller Supervisor Family Product Overview
  
91KB
Analog & Interface Guide (Volume 2)
  
1067KB
Automotive Recommended Product Selector Guide
  
7598KB

User Guides

Voltage Supervisor SOT23 Evaluation Board User's Guide
  
809KB

Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board
8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board ( SOIC8EV )

This is a blank PCB that allows the operation of Microchip Technology’s 8-pin devices to be easily evaluated. Each device pin is connected to a pull-up resistor, a pull-down resistor, an in-line resistor, and a loading capacitor. The PCB pads allow through hole or surface mount connectors to be installed to ease connection to the board. Additional passive component footprints are on the...

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Dimension
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MCP120-270I/WM
0.000000
1000.000
0
WAFER
Varies
-
-
MCP120-450I/WM
0.000000
1000.000
0
WAFER
Varies
-
-
MCP120-270I/SN
0.078000
0.250000
8
SOIC
.150In(3.90mm)
Matte Tin
e3
MCP120-300I/SN
0.078000
0.250000
8
SOIC
.150In(3.90mm)
Matte Tin
e3
MCP120-460I/SN
0.078000
0.250000
8
SOIC
.150In(3.90mm)
Matte Tin
e3
MCP120T-270I/SN
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
MCP120T-300I/SN
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
MCP120T-460I/SN
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
MCP120T-485I/SN
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
MCP120-450I/SN
0.078000
0.250000
8
SOIC
.150In(3.90mm)
Matte Tin
e3
MCP120-475I/SN
0.078000
0.250000
8
SOIC
.150In(3.90mm)
Matte Tin
e3
MCP120T-450I/SN
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
MCP120-315I/SN
0.078000
0.250000
8
SOIC
.150In(3.90mm)
Matte Tin
e3
MCP120T-315I/SN
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
MCP120T-475I/SN
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
MCP120-485I/SN
0.078000
0.250000
8
SOIC
.150In(3.90mm)
Matte Tin
e3
MCP120T-270I/TT
0.008300
0.039000
3
SOT-23
1.3mm
Matte Tin
e3
MCP120T-300I/TT
0.008300
0.039000
3
SOT-23
1.3mm
Matte Tin
e3
MCP120T-315I/TT
0.008300
0.039000
3
SOT-23
1.3mm
Matte Tin
e3
MCP120T-450I/TT
0.008300
0.039000
3
SOT-23
1.3mm
Matte Tin
e3
MCP120T-450I/TTS01
0.008300
0.039000
3
SOT-23
1.3mm
Matte Tin
e3
MCP120T-460I/TT
0.008300
0.039000
3
SOT-23
1.3mm
Matte Tin
e3
MCP120T-475I/TT
0.008300
0.039000
3
SOT-23
1.3mm
Matte Tin
e3
MCP120T-485I/TT
0.008300
0.039000
3
SOT-23
1.3mm
Matte Tin
e3
MCP120-300DI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
MCP120-300GI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
MCP120-300HI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
MCP120-450DI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
MCP120-450GI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
MCP120-450HI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
MCP120-460DI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
MCP120-485DI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
MCP120-485GI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
MCP120-485HI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
MCP120-270DI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
MCP120-270HI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
MCP120-460GI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
MCP120-460HI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
MCP120-475DI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
MCP120-475GI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
MCP120-315DI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
MCP120-315GI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
MCP120-315HI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
MCP120-475HI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
MCP120-270GI/TO
0.203400
0.219000
3
TO-92
 
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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