Fujitsu MB39A104 manual PIN Assignments

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MB39A104

■PIN ASSIGNMENTS

(TOP VIEW)

VCCO : 1

VH : 2

OUT1 : 3

VS1 : 4

ILIM1 : 5

DTC1 : 6

VCC : 7

CSCP : 8

FB1 : 9

−INE1 : 10

CS1 : 11

RT : 12

24 : CTL

23 : GNDO

22 : OUT2

21 : VS2

20 : ILIM2

19: DTC2

18: GND

17 : VREF

16 : FB2

15 : −INE2

14: CS2

13: CT

(FPT-24P-M03)

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Image 2

Contents Package FeaturesDescription MB39A104 PIN AssignmentsPin No Symbol Descriptions PIN DescriptionBlock Diagram Absolute Maximum Ratings Parameter Symbol Condition Rating Unit Min MaxParameter Symbol Condition Value Unit Min Typ Recommended Operating ConditionsPin No Conditions Electrical CharacteristicsParameter Min Typ MaxParameter Symbol Pin No Conditions Value Unit MinTypical Characteristics Reference Voltage vs. Ambient TemperatureTriangular Wave Oscillation Frequency Power Dissipation vs. Ambient Temperature Functions Protection circuit operating function table Timer-latch overcurrent protection circuit block OCPUnder voltage lockout protection circuit Uvlo Operating circuitSetting the Output Voltage Setting the Triangular Oscillation FrequencySetting the SOFT-START and Discharge Times MB39A104 Treatment Without Using CS Terminal Without Setting Soft-Start TimeAbout TIMER-LATCH Protection Circuit Overcurrent detection circuitOvercurrent Protection Circuit Range of Operation Method to detect by mean currentTimer-latch short-circuit protection circuit Treatment Without Using Cscp Terminal Resetting the Latch of Each Protection CircuitEquivalent Circuit On Power on OFF Standby mode Parts List Component Specification VendorSelection of Components CH1CH2 = 3 2 ⋅ 0.05 ⋅ 0.174 = 0.078 W Example Peak-to-peak value ΔIL Di ≥ I O ⋅ 1 − ESR ≤ ΠfC L 050 491 ESR ≤ ΠfC L 033 364 Reference Data Total Efficiency vs. Input VoltageSwitching Wave Form CH1 Do not apply negative voltages Usage PrecautionOrdering Information Part number Package RemarksPackage Dimensions IndexFujitsu Limited