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MAX8971 - 1-Cell Li+ DC-DC Charger

Description

The MAX8971 is a compact, high-frequency, high-efficiency switch-mode charger for a one-cell lithium-ion (Li+) battery.

It delivers up to 1.55A of current to the battery from inputs up to 7.5V and withstands transient inputs up to 22V.

Features

  • include: low-voltage prequalification, charge fault timer, die temperature monitoring, and battery temperature monitoring. The battery temperature monitoring adjusts the charge current and termination voltage for safe use of secondary lithium-ion batteries. The IC accepts either a general DC input or USB. It has programmable automatic input-current limiting to protect upstream charging sources such as USB. Charge parameters are easily adjustable thro.

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Datasheet preview – MAX8971

Datasheet Details

Part number MAX8971
Manufacturer Maxim Integrated
File Size 1.62 MB
Description 1-Cell Li+ DC-DC Charger
Datasheet download datasheet MAX8971 Datasheet
Additional preview pages of the MAX8971 datasheet.

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Full PDF Text Transcription

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MAX8971 Industry's Smallest 1.55A 1-Cell Li+ DC-DC Charger General Description The MAX8971 is a compact, high-frequency, high-efficiency switch-mode charger for a one-cell lithium-ion (Li+) battery. It delivers up to 1.55A of current to the battery from inputs up to 7.5V and withstands transient inputs up to 22V. The 4MHz switch-mode charger is ideally suited for small portable devices, such as Bluetooth® headsets, AR/VR glasses, and other lithium-ion powered accessories. It minimizes component size and heat. Battery-protection features include: low-voltage prequalification, charge fault timer, die temperature monitoring, and battery temperature monitoring.
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