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R1230D181D-TL Datasheet(PDF) 6 Page - RICOH electronics devices division |
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R1230D181D-TL Datasheet(HTML) 6 Page - RICOH electronics devices division |
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6 / 20 page  Rev. 1.12 - 6 - qR1230D001C/D (Topt=25 °C) Symbol Item Conditions MIN. TYP. MAX. Unit VIN Operating Input Voltage 2.4 5.5 V VFB Feedback Voltage VIN=VCE=VSET+1.5V, VMODE=0V, IOUT=10mA 0.776 0.800 0.824 V ∆VFB/ ∆T Feedback Voltage Temperature Coefficient -40 °C ≤ Topt ≤ 85°C ±150 ppm / °C fosc Oscillator Frequency(xx1C) VIN=VCE=VSET+1.5V 425 500 575 kHz fosc Oscillator Frequency(xx1D) VIN=VCE=VSET+1.5V 680 800 920 kHz IDD Supply Current(xx1C) VIN=VCE=5.5V, VFB=VMODE=0V 230 300 µA IDD Supply Current(xx1D) VIN=VCE=5.5V, VFB=VMODE=0V 250 350 µA Istb Standby Current VIN=5.5V, VCE=VFB=0V 0 5 µA RONP ON Resistance of Pch Transistor VIN=5.0V 0.20 0.35 0.60 Ω RONN ON Resistance of Nch Transistor VIN=5.0V 0.20 0.45 0.70 Ω ILXleak Lx Leakage Current VIN=5.5V, VCE=0V, VLX=0V/5.5V -0.1 0.0 0.1 µA IVFB VFB Leakage Current VIN=5.5V, VCE=0V, VFB=0V/5.5V -0.1 0.0 0.1 µA ICE CE Input Current VIN=5.5V, VMODE=0V, VCE=5.5V/0V -0.1 0.0 0.1 µA VCEH CE "H" Input Voltage VIN=5.5V, VFB=0V 1.5 V VCEL CE "L" Input Voltage VIN=2.4V, VFB=0V 0.3 V Maxdty Oscillator Maximum Duty Cycle VMODE=0V 100 % VLX Lx Limit Voltage VIN=VCE=3.0V, VMODE=0V, VFB=0V VIN-0.15 VIN- 0.35 VIN- 0.55 V Tstart Delay Time by Soft-Start function at no load, VIN=VCE=VSET+1.5V 0.5 1.5 2.5 ms Tprot Delay Time for protection circuit VIN=VCE=3.6V, VMODE=0V 1.5 ms VUVLO1 UVLO Threshold Voltage VIN=VCE=2.5V->1.5V, VFB=0V 1.8 2.1 2.2 V VUVLO2 UVLO Released Voltage VIN=VCE=1.5V->2.5V, VFB=0V 1.9 2.2 2.3 V IMODE MODE Pin Input Current VIN=5.5V, VMODE=5.5V/0V, VCE=0V -0.1 0.1 µA VMODE MODE ”H” Input Voltage VIN=VCE=5.5V, VFB=0V 1.5 V VMODEL MODE ”L” Input Voltage VIN=VCE=2.4V, VFB=0V 0.3 V VFMdty VFM Duty Cycle VIN=VCE=VMODE=2.4V, VFB=0V 55 65 85 % |
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