The MAX6441KAEISD3 is a family of ultra-low-power battery monitors with integrated microprocessor (µP) supervisors. These battery monitors are available with single or dual low-battery output options that signal the status of the battery—whether it's okay (enabling full system operation), low (for low-power system operation), or dead (disabling system operation). Additionally, these devices feature an independent µP supervisor that monitors VCC and provides an active-low reset output. A manual reset function is available to reset the µP with a push-button, and no external components are required.
The MAX6441KAEISD3 is offered with several factory-trimmed low-battery threshold combinations, ideal for single-cell lithium-ion (Li+) or multicell alkaline/NiCd/NiMH applications. When the battery voltage drops below each specified low threshold, the low-battery outputs are asserted to alert the system. When the voltage rises above the specified high thresholds, the outputs are deasserted after a 150ms minimum timeout period, ensuring the voltages have stabilized before power circuitry is activated or providing microprocessor reset timing. The low and high thresholds provide hysteresis in battery-operated systems to eliminate output chattering.
The MAX6441KAEISD3 offers factory-trimmed battery monitors with dual outputs. All battery monitors have open-drain low-battery outputs. It monitors system voltages (VCC) from 1.8V to 3.3V with seven fixed reset threshold options. Each device is offered with two minimum reset timeout periods of 150ms or 1200ms. The MAX6441KAEISD3 is available with an open-drain RESET output.
The MAX6441KAEISD3 is offered in an SOT23 package and is fully specified over a -40°C to +85°C temperature range.
♦ Factory-Trimmed VBATT Threshold Options for
Monitoring Single-Cell Li+ or Multicell
Alkaline/NiCd/NiMH Applications
♦ Immune to Short Battery Voltage Transients
♦ Low Current (2.5µA typ at 3.6V)
♦ Single and Dual Low-Battery Output Options
♦ 150ms Minimum LBO Timeout Period
♦ Independent µP Reset with Manual Reset
♦ Factory-Set Reset Thresholds for Monitoring VCC
from 1.8V to 3.3V
♦ Available with 150ms (min) and 1.2s (min) VCC
Reset Timeout Period Options
♦ -40°C to +85°C Operating Temperature Range
♦ Small 6- and 8-Pin SOT23 Packages
♦ No External Components
Battery-Powered Systems (Single-Cell Li+ or
Two-/Three-Cell NiMH, NiCd, Alkaline)
Cell Phones/Cordless Phones
Portable Medical Devices
Electronic Toys
Pagers
PDAs
MP3 Players
TYPE | DESCRIPTION | Select all |
---|---|---|
Package | Bulk | |
Product Status | Active | |
Function | Battery Monitor | |
Battery Chemistry | Multi-Chemistry | |
Number of Cells | 2 | |
Operating Temperature | -40°C ~ 85°C (TA) | |
Mounting Type | Surface Mount | |
Package / Case | SOT-23-8 | |
Supplier Device Package | SOT-23-8 |
Analog Devices Inc./Maxim Integrated
Maxim Integrated has amalgamated with Analog Devices, imparting an augmented repertoire of superlative mixed-signal and power governance innovations, fostering clientele triumph across diverse sectors. This amalgamation begets a spectrum of resolutions for surmounting the utmost intricate quandaries, spanning from direct current to the expanse of 100 gigahertz, encompassing miniscule nanowatt realms to robust kilowatt domains, spanning the sensor continuum to the ethereal expanse of cloud. Delve deeper into Analog Devices' enriched assemblage on their product dossier.
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