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Datasheet Microchip MIC2779

ManufacturerMicrochip
SeriesMIC2779

The MIC2779 is a voltage monitor--uniquely designed to detect two separate voltage thresholds--combined with a delay generator and logic

Datasheets

  • Download » Datasheet PDF, 150 Kb, Revision: 11-09-2015
    MIC2779 - Voltage Monitor with Adjustable Hysteresis
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    MIC2779 Micrel, Inc. MIC2779
    Voltage Monitor with Adjustable Hysteresis General Description Features The MIC2779 is a voltage monitor—uniquely designed to
    detect two separate voltage thresholds—combined with a
    delay generator and logic. It is designed for monitoring the
    battery supply of portable digital systems, particularly PDAs,
    pagers, and cellular telephones.
    High-and low-voltage thresholds can be adjusted independently, allowing for wide hysteresis. Voltage detection
    thresholds are accurate to 2%.
    If the battery voltage falls below the low-voltage threshold,
    the output /RST or RST is asserted and latched, preventing
    system operation until the battery is replaced or recharged.
    Internal logic prevents the output from chattering due to battery
    recovery or load removal. The output is asserted for 140ms
    (minimum) when a fresh battery is inserted. For applications
    requiring open-drain output, see MIC2778/MIC833.
    The IC’s power supply input is separate from the detector
    inputs, allowing the MIC2779 to be powered from a downstream supply, such a boost converter. Supply current is
    extremely low (1ВµA, typical), making it ideal for portable
    applications.
    A high-precision 1% grade is available. The MIC2779 is supplied in Micrel’s IttyBitty™ 5-pin SOT-23-5 package. Optimized for PDAs, cellular telephones, pagers,
    and other battery-powered devices Independently adjustable high-and
    low-voltage thresholds Internal logic prevents battery-voltage-fluctuation chatter High ±2% voltage threshold accuracy; 1% available Built in 140ms (minimum) delay deglitches output Extremely low 1µA typical supply current For applications requiring open-drain output, see
    MIC2778/MIC833 Immune to brief power supply transients 5-pin SOT-23 package Applications PDAs ...

Prices

Status

MIC2779H-1YM5-TRMIC2779H-2YM5-TRMIC2779L-1YM5-TRMIC2779L-2YM5-TR
Lifecycle StatusProduction (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)

Packaging

Parametrics

MIC2779H-1YM5-TRMIC2779H-2YM5-TRMIC2779L-1YM5-TRMIC2779L-2YM5-TR
Manual ResetNoNoNoNo
Nominal Reset Voltage, V1.24 with adjustable hysteresis1.24 with adjustable hysteresis1.24 with adjustable hysteresis1.24 with adjustable hysteresis
Operating Temp. Range, °C-40 to 85-40 to 85-40 to 85-40 to 85
Operating Temperature Range, °C-40 to +85-40 to +85-40 to +85-40 to +85
OutputPush-PullPush-PullPush-PullPush-Pull
Power FailNoNoNoNo
Product TypeSupervisorSupervisorSupervisorSupervisor
Reset TypeActive LowActive LowActive LowActive Low
Typical Reset Pulse Width, ms140140140140
Typical Supply Current, µA1111
VCC Range, V1.5 - 5.51.5 - 5.51.5 - 5.51.5 - 5.5
Watchdog TimerNoNoNoNo

Eco Plan

Moldel Line

Series: MIC2779 (4)

Manufacturer's Classification

  • Power Management > Voltage Detectors

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