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MIC2755 - Battery System Supervisor Preliminary Information

Datasheet Summary

Description

The MIC2755 is composed of multiple comparators, a reset pulse generator, and logic.

It is designed for monitoring the battery supply of portable digital systems, including PDAs and pagers.

The MIC2755 detects three different battery states: battery OK, low battery, and dead battery.

Features

  • Optimized for PDAs, pagers and other hand-held devices.
  • Detects multiple battery states: - battery OK - low battery - dead battery.
  • Adjustable voltage thresholds.
  • High accuracy ± 2% voltage thresholds.
  • Reset generation at power-on (700ms min. ).
  • Debounced manual reset function.
  • Internal logic prevents chatter if battery voltage fluctuates.
  • Extremely low 2µA typical supply current.
  • I/Os can be pulled above VDD (7V a.

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Datasheet preview – MIC2755

Datasheet Details

Part number MIC2755
Manufacturer Micrel Semiconductor
File Size 79.60 KB
Description Battery System Supervisor Preliminary Information
Datasheet download datasheet MIC2755 Datasheet
Additional preview pages of the MIC2755 datasheet.

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Full PDF Text Transcription

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MIC2755 Micrel MIC2755 Battery System Supervisor Preliminary Information General Description The MIC2755 is composed of multiple comparators, a reset pulse generator, and logic. It is designed for monitoring the battery supply of portable digital systems, including PDAs and pagers. The MIC2755 detects three different battery states: battery OK, low battery, and dead battery. The reset (/RST) output is asserted for at least 700ms when a fresh battery is inserted. The nonmaskable interrupt output (/NMI) is asserted when the battery voltage is below the NTH threshold, indicating that high-power system operations should not occur.
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