Fujitsu MB3887 manual Power dissipation vs. Ambient temperature

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MB3887

(Continued)

Power dissipation vs. Ambient temperature

(mW)	800
	740
	700
	600
PD	600
PD
dissipation	500
	400
	300

Power	200
Power	100
	0
	−40	−20	0	20	40	60	80	100

Ambient temperature Ta ( °C)

15

Image 15

Contents Features DescriptionPackage MB3887 TOP View PIN AssignmentPIN Description Pin No Symbol DescriptionsBlock Diagram Absolute Maximum Ratings Parameter Symbol Conditions Rating Unit Min MaxRecommended Operating Conditions Parameter Symbol Conditions Value Unit Min TypElectrical 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 Control block CTL PowerPWM comparator block PWM Comp Output block OUTSoft-start block Soft Setting the Charging VoltageMethod of Setting the Charging Current Method of Setting the Triangular Wave Oscillation FrequencyMethod of Setting the SOFT-START Time AC Adaptor Voltage Detection Operation Timing DiagramConnection when Current Amp is not used Processing Without Using the Current AMPConnection when Error Amp is not used Processing Without Using of the Error AMPConnection when soft-start time is not specified Processing Without Using of the CS TerminalAt 4 cell Application ExampleParts No Parts ListReference Data Batt Vbatt mV Ta = +25 C, VIN = 19 Batt = 12 Ω Usage Precautions Ordering InformationPart number Package Remarks Index Package DimensionFujitsu Limited