MCP100

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 lowRESET pin (MCP100) or active high RESET (MCP101)
• Push-pull output
• HoldsRESE T/RESET for 350 ms (typical)
• Guaranteed RESET/RESET to V_DD = 1.0V
• Accuracy of ±125mV for 5V systems and ±75mV for 3V systems over temperature
• 45 A typical operating current
• Temperature range: - Industrial (I): -40°C to +85°C




Specifications

Parameter NameValueManual ResetNoWatchdog TimerNoTypical Reset Pulse Width (ms)350Reset TypeActive Low Typical Supply Current (uA)45Vcc Range Min (V)1.0Vcc Range Max (V)5.5OutputPush-PullTemp Range Min. (°C)-40Temp Range Max. (°C)+85Nominal Reset Voltage (V)4.72, 4.62, 4.47, 4.37, 3.075, 2.92, 2.62

Parameter Name	Value
Manual Reset	No
Watchdog Timer	No
Typical Reset Pulse Width (ms)	350
Reset Type	Active Low
Typical Supply Current (uA)	45
Vcc Range Min (V)	1.0
Vcc Range Max (V)	5.5
Output	Push-Pull
Temp Range Min. (°C)	-40
Temp Range Max. (°C)	+85
Nominal Reset Voltage (V)	4.72, 4.62, 4.47, 4.37, 3.075, 2.92, 2.62

V_DD .......................................................................................7.0V
All inputs and outputs w.r.t. V_SS.....................-0.6V to V_DD +1.0V
Storage temperature .....................................-65°C to +150°C
Ambient temp. with power applied ................-65°C to +125°C
Soldering temperature of leads (10 seconds) ................+300°C
ESD protection on all pins.................................................. 2 kV
*Notice: Stresses above those listed under "Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.

Description

The MCP100 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. MCP100 has a CMOS Push-Pull output with 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). MCP100 is available in a TO-92 or SOT23-3 packages.

The Microchip Technology Inc. MCP100/101 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. Both devices are available with a choice of seven different trip voltages and both have push-pull outputs. The MCP100 has a low activeRESET pin and the MCP101 has a high active RESET pin. The MCP100/101 will assert the RESET/RESET signal whenever the voltage on the VDD pin is below the trip-point voltage