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MIC2777

Dual Micro-Power Low Voltage Supervisor

Status: In Production

Features:

  • Monitors two independent power supplies for under-voltage conditions
  • One fixed and one user adjustable input
  • 1.5% theshold accuracy
  • Choice of factory-programmed thresholds
  • User-adjustable input can monitor supplies as low as 0.3V
  • Generates 140ms (minimum) power-on RESET pulse
  • Manual reset capability
  • Both active-high and active-low RESET outputs
  • Input may be pulled above VDD(abs. max.)
  • /RST output valid down to 1.2V
  • Ultra-low supply current, 3.5µA typical
  • Rejects brief input transients
  • IttyBitty® 5-pin SOT-23 package
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MIC2777 is a dual power supply supervisor that provides under-voltage monitoring, manual reset capability, and poweron reset generation in a compact 5-pin SOT package. Features include two under-voltage detectors, one fixed and one adjustable, and both active-high and active-low reset outputs. One under-voltage detector compares VDD against a fixed threshold. Ten factory-programmed thresholds are available. The other under-voltage detector is user-adjustable. The reset outputs are asserted for no less than 140ms at power-on and any time VDD or the input voltage drops below the corresponding reference voltage. They remain asserted for the timeout period after the input voltage and VDD subsequently rise back above the threshold boundaries. A reset can be generated at any time by pulling down on the adjustable input. Hysteresis is included to prevent chattering due to noise. Typical supply current is a low 3.5µA.

Additional Features
    • Monitors two independent power supplies for under-voltage conditions
    • One fixed and one user adjustable input
    • 1.5% theshold accuracy
    • Choice of factory-programmed thresholds
    • User-adjustable input can monitor supplies as low as 0.3V
    • Generates 140ms (minimum) power-on RESET pulse
    • Manual reset capability
    • Both active-high and active-low RESET outputs
    • Input may be pulled above VDD(abs. max.)
    • /RST output valid down to 1.2V
    • Ultra-low supply current, 3.5µA typical
    • Rejects brief input transients
    • IttyBitty® 5-pin SOT-23 package
Parametrics
Name
Value
Product Type
Dual
Operating Temp. Range (°C)
-40 to 85
Vcc Range (V)
1.5 - 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
Reset Type
Active Low/High or High/Low
Output
Push-Pull
Typical Reset Pulse Width (ms)
140
Typical Supply Current (µA)
3.5

Documents

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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
MIC2777-31YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2777-29YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2777-46YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2777-23YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2777-17YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2777-22YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2777-25YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2777-26YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2777-28YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2777-44YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
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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