MB3878 Datasheet DC/DC Converter

Manufacturer: Fujitsu Semiconductor Limited

Overview: FUJITSU SEMICONDUCTOR DATA SHEET DS04-27706-1E ASSP For Power Supply Applications (Secondary battery) DC/DC Converter IC for Charging.

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MB3878 dc/dc converter by Fujitsu Semiconductor Limited - Datasheet Preview

Datasheet Details

Part number	MB3878
Manufacturer	Fujitsu Semiconductor Limited
File Size	283.31 KB
Description	DC/DC Converter
Download	MB3878 Download (PDF)

General Description

The MB3878 is a DC/DC converter IC suitable for down-conversion, using pulse-width (PWM) charging and enabling output voltage to be set to any desired level from one cell to four cells.

These ICs can dynamically control the secondary battery’s charge current by detecting a voltage drop in an AC adaptor in order to keep its power constant (dynamically-controlled charging).

The charging method enables quick charging, for example, with the AC adaptor during operation of a notebook PC.

Key Features

Detecting a voltage drop in the AC adaptor and dynamically controlling the charge current (Dynamically-controlled charging).
Output voltage setting using external resistor : 1 cell to 4 cells.
High efficiency : 94 %.
Wide range of operating supply voltages : 7 V to 25 V.
Output voltage setting accuracy : 4.2V ± 0.8% (per cell).
Built-in frequency setting capacitor enables frequency setting using external resistor only.
Oscillator fr.

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