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FUJITSU SEMICONDUCTOR
DATA SHEET
ASSP For Power Supply Applications (Secondary battery)
DC/DC Converter IC
for Charging
MB3887
■DESCRIPTION
The MB3887 is a DC/DC converter IC suitable for
These ICs can dynamically control the secondary battery’s charge current by detecting a voltage drop in an AC adapter in order to keep its power constant
The charging method enables quick charging, for example, with the AC adapter during operation of a notebook PC.
The MB3887 provides a broad power supply voltage range and low standby current as well as high efficiency, making it ideal for use as a
This product is covered by US Patent Number 6,147,477.
■FEATURES
•Detecting a voltage drop in the AC adapter and dynamically controlling the charge current
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