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FR9808 Datasheet(PDF) 5 Page - Fitipower Integrated Technology Inc. |
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FR9808 Datasheet(HTML) 5 Page - Fitipower Integrated Technology Inc. |
5 / 13 page 5 FR9808-1.3-OCT-2012 FR9808 85T fitipower integrated technology lnc. Electrical Characteristics (VIN=12V, TA=25°C, unless otherwise specified.) Parameter Symbol Conditions Min Typ Max Unit Input Supply Voltage VIN 4.75 21 V VIN Shutdown Supply Current ISD VEN=0V 1 μA VIN Quiescent Supply Current IDDQ VEN=2V, VFB=1V 1.1 mA Feedback Voltage VFB 4.75V≦VIN≦21V 780 805 830 mV High-Side MOSFET RDS(ON) (Note2) HSRDS(ON) 120 mΩ Low-Side MOSFET RDS(ON) (Note2) LSRDS(ON) 20 m Ω MOSFET Leakage Current ISW(Leak) VEN=0V, VSW=0V 0 10 μA High-Side MOSFET Current Limit (Note2) ILIMIT 6.5 A Maximum Duty Cycle DMAX VFB=0.7V 90 % Oscillation frequency FSW 350 500 650 KHz Short-Circuit Oscillation Frequency FSW(Short) VFB=0.3V 150 KHz Sync Frequency Range FSYNC 300 800 KHz Input UVLO Threshold VUVLO(Vth) VIN Rising 4 V Under Voltage Lockout Threshold Hysteresis VUVLO(Hys) 200 mV EN/SYNC Input Low Voltage VEN(L) 0.4 V EN/SYNC Input High Voltage VEN(H) 2.0 V EN Input Current IEN VEN=2V 2 μA VCC Regulator VCC 4.5 V Soft-Start Time TSS 600 μs Thermal Shutdown Threshold (Note 2) TSD 160 °C Note 2:Guarantee by design. |
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