Micropower Voltage Supervisors
MCP102/103/121/131
Micropower Voltage Supervisors
Features
• Passes Automotive AEC-Q100 Reliability Testing • Ultra-Low...
Description
MCP102/103/121/131
Micropower Voltage Supervisors
Features
Passes Automotive AEC-Q100 Reliability Testing Ultra-Low Supply Current: 1.75 µA
(steady-state maximum) Precision Monitoring Options of:
- 1.90V, 2.32V, 2.63V, 2.93V, 3.08V, 4.38V and 4.63V
Resets Microcontroller in a Power-Loss Event RST Pin (active-low):
- MCP121: Active-low, Open-drain - MCP131: Active-low, Open-drain with Inter-
nal Pull-up Resistor - MCP102 and MCP103: Active-low, Push-pull Reset Delay Timer (120 ms delay, typical) Available in SOT-23, TO-92 and SC70 Packages Temperature Range: - Extended: -40°C to +125°C
(except MCP1XX-195) - Industrial: -40°C to +85°C (MCP1XX-195 only) Pb-free Devices
Applications
Critical Microcontroller and Microprocessor Power-monitoring Applications
Computers Intelligent Instruments Portable Battery-powered Equipment
General Description
The MCP102/103/121/131 devices are voltage supervisor devices designed to keep a microcontroller in reset until the system voltage has reached and stabilized at the proper level for reliable system operation. Table 1 shows the available features for these devices.
Package Types
SOT-23/SC70
TO-92
MCP102/121/131
RST 1 VDD 2
3 VSS
RST VDD VSS
SOT-23/SC70
VSS 1
3 VDD
MCP103
RST 2
Block Diagram
VDD
Comparator
+
Reset
–
Delay Circuit
Output Driver
R (1) RST
Band Gap Reference
VSS Note: MCP131 only
2004-2023 Microchip Technology Inc. and its subsidiaries
DS20001906E-page 1
MCP102/103/121/131
TA...
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