MIC2775

The MIC2775 is a power supply supervisor that provides undervoltage monitoring, manual reset capability, and power-on reset generation in a compact 5-pin SOT package. Features include an undervoltage detector, a delay generator, a manual reset input, and both active-high and active-low reset outputs. The undervoltage detector compares VDD against a fixed threshold. Ten factory-programmed thresholds are available.

The reset outputs are asserted for no less than 140ms at power-on and any time the input voltage drops below the reference voltage. It remains asserted for the timeout period after the input voltage subsequently rises back above the threshold boundary. A reset can be generated at any time by asserting the manual reset input, /MR. This reset output will remain active at least 140ms after the release of /MR. The /MR input can also be used to daisy-chain the MIC2775 onto existing power monitoring circuitry or other supervisors. Hysteresis is included to prevent chattering due to noise. Typical supply current is a low 3.5µA.

Features
  • Monitors power supply for undervoltage conditions
  • Choice of factory-programmed thresholds
  • Generates 140ms (minimum) power-on RESET pulse
  • Manual reset capability
  • Both active-high and active-low RESET outputs
  • /RST output valid down to 1.2V
  • Ultra-low supply current, 3.5µA typical
  • Rejects brief input transients
  • No external components
  • For extended temperature range, see Micrel's MAX825
  • IttyBitty® 5-pin SOT-23 package
Parameter
Parameter Name Value Value
Manual Reset Yes Yes
Typical Reset Pulse Width (ms) 140 140
Reset Type Active-High/Low Push-Pull Active-High/Low Push-Pull
Typical Supply Current (uA) 5 5
Nominal Reset Voltage (V) 1.69, 2.25, 2.34, 2.53, 2.67, 2.81, 2.93, 3.09, 4.43, 4.68 1.69, 2.25, 2.34, 2.53, 2.67, 2.81, 2.93, 3.09, 4.43, 4.68
Product Type Single Voltage Monitor Single Voltage Monitor
Documents
MIC2775 - Micro-Power Voltage SupervisorData Sheets11/09/2015309KB
Micrel AN 15 - Designing BLDC Motor ControlAppNote10/01/20151050KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MIC2775-17YM5-TR5SOT-23-40C to +85CT/R0.610.500.460.440.44
MIC2775-29YM5-TR5SOT-23-40C to +85CT/R0.610.500.460.440.44
MIC2775-29YM5-TX5SOT-23-40C to +85CRVT/R0.610.500.460.440.44
MIC2775-31YM5-TR5SOT-23-40C to +85CT/R**********
MIC2775-44YM5-TR5SOT-23-40C to +85CT/R0.610.500.460.440.44
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MIC2775-17YM5-TR0.0174000.0490005SOT-23-NiPdAue4
MIC2775-22YM5-TR0.0174000.0490005SOT-23-NiPdAue4
MIC2775-23YM5-TR0.0174000.0490005SOT-23-NiPdAue4
MIC2775-25YM5-TR0.0174000.0490005SOT-23-NiPdAue4
MIC2775-26YM5-TR0.0174000.0490005SOT-23-NiPdAue4
MIC2775-28YM5-TR0.0174000.0490005SOT-23-NiPdAue4
MIC2775-29YM5-TR0.0174000.0490005SOT-23-NiPdAue4
MIC2775-31YM5-TR0.0174000.0490005SOT-23-NiPdAue4
MIC2775-44YM5-TR0.0174000.0490005SOT-23-NiPdAue4
MIC2775-46YM5-TR0.0174000.0490005SOT-23-NiPdAue4
MIC2775-29YM5-TX0.0174000.0490005SOT-23-NiPdAue4
MIC2775 - Micro-Power Voltage Supervisor MIC2775
Micrel AN 15 MIC6270
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