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P1786-S08-R Datasheet(PDF) 4 Page - Unisonic Technologies |
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P1786-S08-R Datasheet(HTML) 4 Page - Unisonic Technologies |
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4 / 8 page  P1786 LINEAR INTEGRATED CIRCUIT UNISONICTECHNOLOGIESCO.,LTD 4 of 8 www.unisonic.com.tw QW-R103-038.A ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATING UNIT VCC Pin Voltage VCC VSS - 0.3 ~ VSS + 25 V Feedback Pin Voltage VFB VSS - 0.3 ~ VCC V EN Pin Voltage VEN VSS - 0.3 ~ VIN + 0.3 V Switch Pin Voltage VOUT VSS - 0.3 ~ VIN + 0.3 V Power Dissipation PD Internally limited Operating Temperature TOPR -20 ~ +125 ℃ Storage Temperature TSTG -40 ~ +150 ℃ Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. THERMAL DATA PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT Thermal Resistance Junction-to-Ambient θJA 65 ℃ /W ELECTRICAL CHARACTERISTICS (VIN = 12V, Ta=25°C, unless otherwise specified) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT Input Voltage VIN 3.6 23 V Feedback Voltage VFB IOUT=0.1A 0.784 0.8 0.816 V Feedback Bias Current IFB(BIAS) IOUT=0.1A 0.1 0.5 µA Switch Current ISC 3.5 A Standby Current ISTN-BY VEN =0V 10 µA Line Regulation ∆VOUT /VOUT VIN = 5V~23V, IOUT=0.2A 1 2 % Load Regulation ∆VOUT /VOUT IOUT = 0.1 to 3A 0.2 0.5 % Oscillation Frequency fOSC Measure waveform at SW pin 240 300 360 KHz Frequency of Current Limit or Short Circuit Protect fOSC1 Measure waveform at SW pin 10 30 60 KHz VSH Evaluate oscillation at SW pin 2.0 EN Pin Input Voltage VSL Evaluate oscillation stop at SW pin 0.8 V ISH 20 µA EN Pin Input Leakage Current ISL -10 µA OCSET Pin Bias Current IOCSET 75 90 105 µA Soft-Start Time TSS 0.3 2 5 ms VIN=5V, VFB=0V 110 150 Internal MOSFET RDS(ON) RDS(ON) VIN=12V, VFB=0V 70 100 mΩ Efficiency η VIN = 12V, VOUT = 5V, IOUT = 3A 91 % |
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