MB3878 Datasheet (Fujitsu Media Devices)

MB3878, DC/DC Converter

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 adap

MB3878 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