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Reverse Battery Charger Protection

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Abstract: Combining a linear-mode single-cell lithium-ion battery charger (MAX1551) with a comparator (MAX9001) and n-channel FET adds a layer of reverse-battery protection that protects a single cell lithium-ion battery charger and battery from damage due to backwards insertion.

Maxim > App Notes > Amplifier and Comparator Circuits Battery Management Circuit Protection
Keywords: reverse battery protection, lithium-ion battery charger, comparators, n-channel FETs Feb 16, 2011

APPLICATION NOTE 4572
Reverse Battery Charger Protection
By:Zeeshawn Shameem, Customer Applications Engineer


Abstract:Combining a linear-mode single-cell lithium-ion battery charger (MAX1551) with a comparator (MAX9001) and n-
channel FET adds a layer of reverse-battery protection that protects a single cell lithium-ion battery charger and battery from
damage due to backwards insertion.

A similar version of this article appeared in the March 1, 2007 issue of PET magazine.

Many battery powered applications use diodes for reverse batt……
Reverse Battery Charger Protection
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