System supervisors and voltage detectors monitor system voltages to eliminate problems during operation. On power-down, the supervisor monitors the power supply voltage and resets the system if the voltage falls below a predetermined level. On power-up, the supervisor holds the system in reset until the voltage has stabilized.
Voltage Supervisors
- Monitors systems without a MCU, for example FPGAs, PLDs and power supplies
- Can reset all or part of a system
- Localized shutdown makes system faster and less susceptible to noise
- Meets system safety regulations requiring external fail safe
- More customizable and accurate voltage trip points and reset output delay
- Supervisor options with manual resets and watchdog timers simplify firmware, add reliability and are very easy to implement
Key Features
- Watchdog Timer
- Signal required from within MCU (WDI) tWD or RST driven low
- Designed to detect faulty program execution
- Voltage Trip Point
- Standard trip voltages available on all devices
- Custom trip voltages available on some devices
- Reset Delay
- Different available options for a reset delay
- Some devices have custom options available
- WDT Period
- Devices with watchdog timers have different tWD (period)
- Low Power (Typ < 1uA)
- Typically used in battery applications
- Power sensitive with same reliability of a supervisor
- Output Type
- Push-pull or open-drain
- Active low or high
- Internal or external pull-up resistor (open-drain only)
MPLAB® Analog Designer
Provides design suggestions for common circuit needs, estimates performance for common modifications, and can export to MPLAB® Mindi™ Analog Simulator for verification.
MPLAB® Mindi™ Analog Simulator
Uses a SIMetrix / SIMPLIS environment to model circuit behavior, reducing design time with software debugging for initial design verification.
Power Check Design Service
Provides advice on your exact physical circuit layout, sharing best practices from an experienced power supply designer, so that physical hardware will match simulations.
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| Product | Status | Automotive Recommended | 5K Pricing | Product Type | Watchdog Timer | Manual Reset | Power Fail | Operating Temp. Range (°C) | VCC Range (V) | Nominal Reset Voltage (V) | Reset Type | Output | Typical Reset Pulse Width (ms) | Typical Supply Current (µA) | Packages |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TC1232 | In Production | $0.71 | Supervisor | Yes | Yes | No | -40 to 85 | 4.5 - 5.5 | 4.5, 4.75 | Active Low/High or High/Low | Dual Output Open-Drain and/or Push-Pull | 610 | 50 | 8/PDIP, 8/SOIC, 16/SOIC | |
| TC1272A | In Production | $0.38 | Supervisor | No | No | No | -40 to 125 | 1.0 - 5.5 | 4.50, 4.25, 3.89, 3.00, 2.85, 2.55, 2.25 | Active Low | Push-Pull | 140 | 12 | 3/SOT-23 | |
| TC32M | In Production | $1.16 | Supervisor | Yes | No | No | -40 to 85 | 4.5 - 5.5 | 4.25 | Active Low | Open-Drain | 500 | 50 | 3/SOT-223, 3/TO-92 | |
| TC51 | In Production | $0.67 | Detector | No | No | No | -40 to 85 | 0.7 - 10 | 2.94, 2.65, 2.16 (1.6-6V) | Active Low | Open-Drain | 50 | 2 | 3/SOT-23A | |
| TC54 | In Production | $0.25 | Detector | No | No | No | -40 to 85 | 0.7 - 10 | 4.21, 4.12, 2.94, 2.84, 2.65, 2.06, 1.37 (1.4-6V) | Active Low | CMOS push-pull or Open drain | 0 | 1 | 3/SOT-23A, 3/SOT-89, 5/SOT-23 | |
| TCM809 | In Production | $0.19 | Supervisor | No | No | No | -40 to 125 | 1.0 - 5.5 | 4.50, 4.25, 3.89, 3.00, 2.85, 2.55, 2.25 | Active Low | Push-Pull | 140 | 12 | 3/SC70, 3/SOT-23 | |
| TCM810 | In Production | $0.19 | Supervisor | No | No | No | -40 to 125 | 1.0 - 5.5 | 4.50, 4.25, 3.89, 3.00, 2.85, 2.55, 2.25 | Active High | Push-Pull | 140 | 12 | 3/SC70, 3/SOT-23 | |
| MIC1232 | In Production | No | $0.51 | Supervisor | Yes | No | No | -40 to 85 | 4.5 - 5.5 | 4.37, 4.62 | Active Low/High or High/Low | Push-Pull | 250 | 18 | 8/PDIP, 8/SOIC |
| MIC1810 | In Production | No | $0.23 | Supervisor | No | No | No | -40 to 85 | 1.5 - 5.5 | 4.12, 4.37, 4,62 | Active Low | Push-Pull | 100 | 5 | 3/SOT-23 |
| MIC1815 | In Production | No | $0.23 | Supervisor | No | No | No | -40 to 85 | 1.5 - 5.5 | 2.55, 2.88 | Active Low | Push-Pull | 100 | 5 | 3/SOT-23 |
| MIC1832 | In Production | No | $0.51 | Supervisor | Yes | Yes | No | -40 to 85 | 1.4 - 5.5 | 2.55, 2.88 | Active Low/High or High/Low | Push-Pull | 250 | 15 | 8/PDIP, 8/SOIC |
| MIC2755 | In Production | No | $1.22 | Supervisor | No | Yes | No | -40 to 85 | 1.5 - 5.5 | 1.24 | Active Low | Open-Drain | 700 | 2 | 8/MSOP |
| MIC2772 | In Production | No | $0.60 | Dual | No | Yes | No | -40 to 85 | 1.0 - 5.5 | 2.93, 3.08, 4.38, 4.63 | Active Low | Open-Drain | 10 | 8/VDFN | |
| MIC2774 | In Production | No | $0.51 | Dual | No | Yes | No | -40 to 85 | 1.5 - 5.5 | 1.69, 2.25, 2.34, 2.53, 2.67, 2.81, 2.93, 3.09, 4.43, 4.68 | Active Low | Open-Drain | 140 | 3.5 | 5/SOT-23 |
| MIC2775 | In Production | No | $0.43 | Supervisor | No | Yes | No | -40 to 85 | 1.5 - 5.5 | 1.69, 2.25, 2.34, 2.53, 2.67, 2.81, 2.93, 3.09, 4.43, 4.68 | Active Low/High or High/Low | Push-Pull | 140 | 5 | 5/SOT-23 |
| MIC2776 | In Production | No | $0.47 | Supervisor | No | Yes | No | -40 to 85 | 1.5 - 5.5 | 0.3 | Active Low | Open-Drain | 140 | 3 | 5/SOT-23 |
| MIC2777 | In Production | No | $0.55 | Dual | No | No | No | -40 to 85 | 1.5 - 5.5 | 1.69, 2.25, 2.34, 2.53, 2.67,2.81, 2.93, 3.09, 4.43, 4.68 | Active Low/High or High/Low | Push-Pull | 140 | 3.5 | 5/SOT-23 |
| MIC2778 | In Production | No | $0.65 | Supervisor | No | No | No | -40 to 85 | 1.5 - 5.5 | 1.24 with adjustable hysteresis | Active Low | Open-Drain | 140 | 1 | Please call for package information |
| MIC2779 | In Production | No | $0.69 | Supervisor | No | No | No | -40 to 85 | 1.5 - 5.5 | 1.24 with adjustable hysteresis | Active Low | Push-Pull | 140 | 1 | 5/SOT-23 |
| MIC2782 | In Production | No | $0.26 | Push Button | No | Dual | No | -40 to 85 | 1.5 - 5.5 | Custom options | Active Low | Open-Drain | 2.2 | Please call for package information | |
| MIC2785 | In Production | No | $0.33 | Supervisor | No | Yes | No | -40 to 85 | 1.5 - 5.5 | 1.62 | Active Low | Push-Pull | 0.025 | 5 | 6/UQFN |
| MIC2790 | In Production | No | $0.51 | Push Button | No | Yes | No | -40 to 125 | 1.5 - 5.5 | 0.4 | Active Low/High or High/Low | Dual Output Open-Drain and/or Push-Pull | 1.05 | 40 | 6/TSOT, 6/UDFN |
| MIC2791 | In Production | No | $0.51 | Push Button | No | Yes | No | -40 to 125 | 1.5 - 5.5 | 0.4 | Active Low/High or High/Low | Dual Output Open-Drain and/or Push-Pull | 1.05 | 40 | 6/UDFN |
| MIC2793 | In Production | No | $0.51 | Push Button | No | Yes | No | -40 to 125 | 1.5 - 5.5 | 0.4 | Active Low/High or High/Low | Dual Output Open-Drain and/or Push-Pull | 1.05 | 40 | 8/UDFN |
| MIC6315 | In Production | No | $0.21 | Supervisor | No | Yes | No | -40 to 85 | 1.4 - 5.5 | 2.63, 2.93, 3.00, 3.08, 4.00, 4.10, 4.38, 4.63 | Active Low | Open-Drain | 5 | 4/SOT-143 | |
| MIC705 | In Production | No | $0.40 | Supervisor | Yes | Yes | Yes | -40 to 85 | 1.5 - 5.5 | 4.65 | Active Low | Push-Pull | 140 | 30 | 8/SOIC |
| MIC706 | In Production | No | $0.50 | Supervisor | Yes | Yes | Yes | -40 to 85 | 1.5 - 5.5 | 4.4 | Active Low | Push-Pull | 140 | 30 | 8/SOIC |
| MIC707 | In Production | No | $0.40 | Supervisor | No | No | Yes | -40 to 85 | 1.5 - 5.5 | 4.65 | Active Low/High or High/Low | Push-Pull | 140 | 30 | 8/SOIC |
| MIC708 | In Production | No | $0.27 | Supervisor | No | No | Yes | -40 to 85 | 1.5 - 5.5 | 4.4 | Active Low/High or High/Low | Push-Pull | 140 | 30 | 8/SOIC |
| MIC803 | In Production | No | $0.16 | Supervisor | No | No | No | -40 to 125 | 1.0 - 5.5 | 2.63, 2.93, 3.00, 3.08, 4.00, 4.10, 4.38, 4.63 | Active Low | Open-Drain | 5 | 3/SC70, 3/SOT-23 | |
| MIC809 | In Production | No | $0.22 | Supervisor | No | No | No | -40 to 85 | 1.4 - 5.5 | 2.63, 2.93, 3.08, 4.00, 4.38, 4.63 | Active Low | Push-Pull | 140 | 5 | 3/SC70, 3/SOT-23 |
| MIC810 | In Production | No | $0.22 | Supervisor | No | No | No | -40 to 85 | 1.4 - 5.5 | 2.63, 2.93, 3.08, 4.00, 4.38, 4.63 | Active Low/High or High/Low | Push-Pull | 140 | 5 | 3/SC70, 3/SOT-23 |
| MIC811 | In Production | No | $0.24 | Supervisor | No | Yes | No | -40 to 85 | 1.4 - 5.5 | 2.63, 2.93, 3.08, 4.00, 4.38, 4.63 | Active Low | Push-Pull | 140 | 5 | 4/SOT-143 |
| MIC8114 | In Production | No | $0.29 | Supervisor | No | Yes | No | -40 to 85 | 1.0 - 5.5 | 3.08 | Active Low | Push-Pull | 790 | 5 | 4/SOT-143 |
| MIC8115 | In Production | No | $0.29 | Supervisor | No | Yes | No | -40 to 85 | 1.0 - 5.5 | 3.08 | Active Low | Push-Pull | 1100 | 5 | 4/SOT-143 |
| MIC812 | In Production | No | $0.21 | Supervisor | No | Yes | No | -40 to 85 | 1.4 - 5.5 | 2.63, 2.93, 3.08, 4.00, 4.38, 4.63 | Active Low/High or High/Low | Push-Pull | 140 | 5 | 4/SOT-143 |
| MIC826 | In Production | No | $0.29 | Supervisor | Yes | Yes | No | -40 to 125 | 1.0 - 5.5 | 1.665, 2.188, 2.315, 2.625, 2.925, 3.075, 4.375, 4.625 | Active Low/High or High/Low | Push-Pull | 140 | 4 | 6/UDFN |
| MCP100 | In Production | Yes | $0.20 | Supervisor | No | No | No | -40 to 85 | 1.0 - 5.5 | 2.7, 3, 3.15, 4.5, 4.6, 4.75, 4.85 | Active Low | Push-Pull | 350 | 45 | 3/SOT-23, 3/TO-92 |
| MCP101 | In Production | Yes | $0.20 | Supervisor | No | No | No | -40 to 85 | 1.0 - 5.5 | 2.7, 3, 3.15, 4.5, 4.6, 4.75, 4.85 | Active High | Push-Pull | 350 | 45 | 3/SOT-23, 3/TO-92 |
| MCP102 | In Production | Yes | $0.29 | Supervisor | No | No | No | -40 to 125 | 1 - 5.5 | 1.95 (I-Temp), 2.4, 2.7, 3, 3.15, 4.5, 4.75 | Active Low | Push-Pull | 120 | 1 | 3/SC70, 3/SOT-23, 3/TO-92, 8/SOIC 150mil |
| MCP103 | In Production | Yes | $0.29 | Supervisor | No | No | No | -40 to 125 | 1 - 5.5 | 1.95 (I-Temp), 2.4, 2.7, 3, 3.15, 4.5, 4.75 | Active Low | Push-Pull | 120 | 1 | 3/SC70, 3/SOT-23 |
| MCP111 | In Production | Yes | $0.20 | Detector | No | No | No | -40 to 125 | 1.0 - 5.5 | 1.87(Itemp), 2.29, 2.59, 2.86, 2.87, 3.03, 4.31, 4.56 | Active Low | Open-Drain | 0 | 1 | 3/SC70, 3/SOT-23, 3/SOT-89, 3/TO-92, 5/SOT-23 |
| MCP112 | In Production | Yes | $0.24 | Detector | No | No | No | -40 to 125 | 1.0 - 5.5 | 1.87(Itemp), 2.29, 2.59, 2.86, 2.87, 3.03, 4.31, 4.56 | Active Low | Push-Pull | 0 | 1 | 3/SC70, 3/SOT-23, 3/SOT-89, 3/TO-92 |
| MCP120 | In Production | Yes | $0.24 | Supervisor | No | No | No | -40 to 85 | 1.0 - 5.5 | 2.7, 3, 3.15, 4.5, 4.6, 4.75, 4.85 | Active Low | Open-Drain | 350 | 45 | 3/SOT-23, 3/TO-92, 8/SOIC |
| MCP121 | In Production | Yes | $0.27 | Supervisor | No | No | No | -40 to 125 | 1 - 5.5 | 1.95 (I-Temp), 2.4, 2.7, 3, 3.15, 4.5, 4.75 | Active Low | Open-Drain | 120 | 1 | 3/SC70, 3/SOT-23, 3/TO-92, 8/SOIC 150mil |
| MCP130 | In Production | Yes | $0.24 | Supervisor | No | No | No | -40 to 85 | 1.0 - 5.5 | 2.7, 3, 3.15, 4.5, 4.6, 4.75, 4.85 | Active Low | Open-Drain | 350 | 45 | 3/SOT-23, 3/TO-92, 8/SOIC |
| MCP131 | In Production | Yes | $0.29 | Supervisor | No | No | No | -40 to 125 | 1 - 5.5 | 1.95 (I-Temp), 2.4, 2.7, 3, 3.15, 4.5, 4.75 | Active Low | Open-Drain | 120 | 1 | 3/SC70, 3/SOT-23, 3/TO-92, 8/SOIC 150mil |
| MCP1316 | In Production | Yes | $0.39 | Supervisor | Yes | Yes | No | -40 to 125 | 1.0 - 5.5 | 2.9, 4.6, (2.0-2.4V=I-Temp, 2.4-4.7=Ext) | Active Low | Push-Pull | 200 | 1 | 5/SOT-23 |
| MCP1316M | In Production | Yes | $0.39 | Supervisor | Yes | Yes | No | -40 to 125 | 1.0 - 5.5 | 2.9, 4.6, (2.0-2.4V=I-Temp, 2.4-4.7=Ext) | Active Low | Open-Drain | 200 | 1 | 5/SOT-23 |
| MCP1317 | In Production | Yes | $0.39 | Supervisor | Yes | Yes | No | -40 to 125 | 1.0 - 5.5 | 2.9, 4.6, (2.0-2.4V=I-Temp, 2.4-4.7=Ext) | Active High | Push-Pull | 200 | 1 | 5/SOT-23 |
| MCP1318 | In Production | Yes | $0.42 | Supervisor | Yes | No | No | -40 to 125 | 1.0 - 5.5 | 2.9, 4.6, (2.0-2.4V=I-Temp, 2.4-4.7=Ext) | Active Low/High or High/Low | Dual Output Open-Drain and/or Push-Pull | 200 | 1 | 5/SOT-23 |
| MCP1318M | In Production | Yes | $0.39 | Supervisor | Yes | No | No | -40 to 125 | 1.0 - 5.5 | 2.9, 4.6, (2.0-2.4V=I-Temp, 2.4-4.7=Ext) | Active Low/High or High/Low | Dual Output Open-Drain and/or Push-Pull | 200 | 1 | 5/SOT-23 |
| MCP1319 | In Production | Yes | $0.42 | Supervisor | No | Yes | No | -40 to 125 | 1.0 - 5.5 | 2.9, 4.6, (2.0-2.4V=I-Temp, 2.4-4.7=Ext) | Active Low/High or High/Low | Dual Output Open-Drain and/or Push-Pull | 200 | 1 | 5/SOT-23 |
| MCP1319M | In Production | Yes | $0.41 | Supervisor | No | Yes | No | -40 to 125 | 1.0 - 5.5 | 2.9, 4.6, (2.0-2.4V=I-Temp, 2.4-4.7=Ext) | Active Low/High or High/Low | Dual Output Open-Drain and/or Push-Pull | 200 | 1 | 5/SOT-23 |
| MCP1320 | In Production | Yes | $0.39 | Supervisor | Yes | Yes | No | -40 to 125 | 1.0 - 5.5 | 2.9, 4.6, (2.0-2.4V=I-Temp, 2.4-4.7=Ext) | Active Low | Open-Drain | 200 | 1 | 5/SOT-23 |
| MCP1321 | In Production | Yes | $0.39 | Supervisor | Yes | No | No | -40 to 125 | 1.0 - 5.5 | 2.9, 4.6, (2.0-2.4V=I-Temp, 2.4-4.7=Ext) | Active Low/High or High/Low | Dual Output Open-Drain and/or Push-Pull | 200 | 1 | 5/SOT-23 |
| MCP1322 | In Production | Yes | $0.42 | Supervisor | No | Yes | No | -40 to 125 | 1.0 - 5.5 | 2.9, 4.6, (2.0-2.4V=I-Temp, 2.4-4.7=Ext) | Active Low/High or High/Low | Dual Output Open-Drain and/or Push-Pull | 200 | 1 | 5/SOT-23 |
| MCP809 | In Production | Yes | $0.19 | Supervisor | No | No | No | -40 to 85 | 1.0 - 5.5 | 2.7, 3.0, 3.15, 4.5, 4.6, 4.75, 4.85 | Active Low | Push-Pull | 350 | 45 | 3/SOT-23 |
| MCP810 | In Production | Yes | $0.24 | Supervisor | No | No | No | -40 to 85 | 1.0 - 5.5 | 2.7, 3.0, 3.15, 4.5, 4.6, 4.75, 4.85 | Active High | Push-Pull | 350 | 45 | 3/SOT-23 |
| TC1270A | In Production | Yes | $0.36 | Supervisor | No | Yes | No | -40 to 125 | 1.0 - 5.5 | 2.7, 3, 3.15, 4.5, 4.75 | Active Low | Push-Pull | 280 | 7 | 4/SOT-143, 5/SOT-23 |
| TC1270AN | In Production | Yes | $0.36 | Supervisor | No | Yes | No | -40 to 125 | 1.0 - 5.5 | 2.7, 3, 3.15, 4.5, 4.75 | Active Low | Open-Drain | 280 | 7 | 4/SOT-143, 5/SOT-23 |
| TC1271A | In Production | Yes | $0.36 | Supervisor | No | Yes | No | -40 to 125 | 1.0 - 5.5 | 2.7, 3, 3.15, 4.5, 4.75 | Active High | Push-Pull | 280 | 7 | 4/SOT-143, 5/SOT-23 |
