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MB3875 - DC/DC Converter

Description

The MB3875 and MB3877 are charging DC/DC converter ICs suitable for down-conversion, which uses pulse width modulation (PWM) for controlling the output voltage and current independently.

Features

  • Detecting a voltage drop in the AC adapter and dynamically controlling the charge current (Dynamically-controlled charging).
  • High efficiency : 95 %.
  • Wide range of operating supply voltages : 7 V to 25 V.
  • Output voltage precision (Output voltage setting resistor integrated) : 0 ± 0.8 % (Ta = + 25 °C).
  • High precision reference voltage source : 4.2 V ± 0.8 % (Continued) s.

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Datasheet preview – MB3875

Datasheet Details

Part number MB3875
Manufacturer Fujitsu Media Devices
File Size 293.49 KB
Description DC/DC Converter
Datasheet download datasheet MB3875 Datasheet
Additional preview pages of the MB3875 datasheet.

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Full PDF Text Transcription

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FUJITSU SEMICONDUCTOR DATA SHEET DS04-27703-2E ASSP For Power Supply Applications (Lithium ion battery charger) DC/DC Converter IC for Charging MB3875/MB3877 s DESCRIPTION The MB3875 and MB3877 are charging DC/DC converter ICs suitable for down-conversion, which uses pulse width modulation (PWM) for controlling the output voltage and current independently. 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 (dynamically-controlled charging). The charging method enables quick charging, for example, with the AC adapter during operation of a notebook PC.
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