MB39A113 - Fujitsu

MB39A113 DC/DC Converter IC

MB39A113 is a DC/DC converter IC of pulse width modulation (PWM) type for charging, capable of independently controlling the output voltage and output current. MB39A113 is suitable for down conversion. MB39A113 can dynamically control the charge current of the secondary battery, to keep the power constant by detecting a voltage drop in an AC adapter (dynamic.

Features

• Built-in dual constant-current control circuits
• Analog control of charge current is possible. (+INE1 and +INE2 terminals)
• Built-in AC adapter detection function (fixing the output in the off state when the VCC voltage is lower than the battery voltage + 0.2 V)
• Possible to prevent mis-detecting of fully-charged state by constant-voltage control state detection function (CVM terminal)
• Built-in overvoltage detection function of charge-voltage (OVP terminal) (Continued)
■ PACKAGE 24-pin plastic SSOP (FPT-24P-M03) Copyright©2004-2008 FUJITSU MICROELECTRONICS LIMITED All rights reserved 2.