Fujitsu MB3887 manual Absolute Maximum Ratings, Parameter Symbol Conditions Rating Unit Min Max

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MB3887

■ABSOLUTE MAXIMUM RATINGS

Parameter	Symbol	Conditions		Rating		Unit

			Min		Max
			Min		Max

Power supply voltage	VCC	VCC, VCC (O) terminal			28	V

Output current	IOUT				60	mA

Peak output current	IOUT	Duty ≤ 5 %			700	mA
Peak output current	IOUT	(t = 1 / fOSC ⋅ Duty)			700	mA
		(t = 1 / fOSC ⋅ Duty)

Power dissipation	PD	Ta ≤ +25 °C			740*	mW

Storage temperature	TSTG		−55		+125	°C

* : The package is mounted on the dual-sided epoxy board (10 cm ⋅ 10 cm) .

WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current, temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.

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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