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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

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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Add To Cart
Voltage Supervisor Evaluation Board
Voltage Supervisor Evaluation Board ( VSUPEV )
(Not Recommended for new design)

The Voltage Supervisor SOT23 Evaluation Board allows the system designer to quickly evaluate the operation of Microchip’s Voltage Supervisors and Voltage Detectors in the SOT-23-3 package. The board has been made generic so that other SOT-23-3 devices (such as LDOs and Voltage References) may also be evaluated using this board. This kit comes with four blank PCBs to allow the designer to...

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
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-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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