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MB39A114 - DC/DC Converter IC

Datasheet Summary

Description

The MB39A114 is a DC/DC converter IC of pulse width modulation (PWM) type for charging, capable of independently controlling the output voltage and output current.

It is suitable for down conversion.

Features

  • Built-in constant current control circuit in 2-system.
  • Analog control of charge current value is possible. (+INE1 terminal and +INE2 terminal).
  • Built-in AC adapter detection function (When VCC is lower than the battery voltage +0.2 V, output is fixed in the off. ).
  • Constant voltage control state detection function (CVM terminal) enables prevention of mis-detection for full charge.
  • Built-in overvoltage detection function (OVP terminal) of charge volt.

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Datasheet Details

Part number MB39A114
Manufacturer Fujitsu
File Size 707.43 KB
Description DC/DC Converter IC
Datasheet download datasheet MB39A114 Datasheet
Additional preview pages of the MB39A114 datasheet.

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Full PDF Text Transcription

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FUJITSU MICROELECTRONICS DATA SHEET DS04-27241-1Ea ASSP for Power Supply Applications (Secondary battery) DC/DC Converter IC for Charging Li-ion Battery MB39A114 ■ DESCRIPTION The MB39A114 is a DC/DC converter IC of pulse width modulation (PWM) type for charging, capable of independently controlling the output voltage and output current. It is suitable for down conversion. MB39A114 can dynamically control the secondary battery’s charge current by detecting a voltage drop in an AC adapter to keep its power constant (dynamically-controlled charging) . This IC can easily set the charge current value, making it ideal for use as a built-in charging device in products such as notebook PC. ■ FEATURES • Built-in constant current control circuit in 2-system.
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