Fujitsu MB3887 manual Usage Precautions, Ordering Information, Part number Package Remarks

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MB3887

■USAGE PRECAUTIONS

•Printed circuit board ground lines should be set up with consideration for common impedance.

•Take appropriate static electricity measures.

•Containers for semiconductor materials should have anti-static protection or be made of conductive material.

•After mounting, printed circuit boards should be stored and shipped in conductive bags or containers.

•Work platforms, tools, and instruments should be properly grounded.

•Working personnel should be grounded with resistance of 250 kΩ to 1 MΩ between body and ground.

•Do not apply negative voltages.

•The use of negative voltages below −0.3 V may create parasitic transistors on LSI lines, which can cause malfunction.

■ORDERING INFORMATION

Part number	Package	Remarks

MB3887PFV	24-pin plastic SSOP
MB3887PFV	(FPT-24P-M03)
	(FPT-24P-M03)

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Contents Features DescriptionPackage MB3887 PIN Assignment TOP ViewPin No Symbol Descriptions PIN DescriptionBlock Diagram Parameter Symbol Conditions Rating Unit Min Max Absolute Maximum RatingsParameter Symbol Conditions Value Unit Min Typ Recommended Operating ConditionsElectrical Characteristics Parameter Sym Pin ConditionsBol Min Typ Parameter Sym Pin Conditions Value Unit Bol Min Typ Max Parameter Sym Pin Conditions Value Unit Bol Min Typ OUT = −45 mA Output block Resistor Typical Characteristics Triangular wave oscillation frequency fOSC kHz Error amplifier gain and phase vs. Frequency Gain a Power dissipation vs. Ambient temperature Functional Description Output block OUT PowerPWM comparator block PWM Comp Control block CTLMethod of Setting the Triangular Wave Oscillation Frequency Setting the Charging VoltageMethod of Setting the Charging Current Soft-start block SoftMethod of Setting the SOFT-START Time Operation Timing Diagram AC Adaptor Voltage DetectionProcessing Without Using the Current AMP Connection when Current Amp is not usedProcessing Without Using of the Error AMP Connection when Error Amp is not usedProcessing Without Using of the CS Terminal Connection when soft-start time is not specifiedApplication Example At 4 cellParts List Parts NoReference Data Batt Vbatt mV Ta = +25 C, VIN = 19 Batt = 12 Ω Usage Precautions Ordering InformationPart number Package Remarks Package Dimension IndexFujitsu Limited