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R1280D002C Datasheet(PDF) 5 Page - RICOH electronics devices division |
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R1280D002C Datasheet(HTML) 5 Page - RICOH electronics devices division |
5 / 26 page Rev. 1.10 - 5 - s ELECTRICAL CHARACTERISTICS q R1280D002A (Topt=25 °C) Symbol Item Conditions MIN. TYP. MAX. Unit VIN Operating Input Voltage 2.5 5.5 V VREFOUT VREFOUT Voltage Tolerance VIN=3.3V, IOUT=1mA 1.478 1.500 1.522 V IROUT VREFOUT Output Current VIN=3.3V 20 mA ∆VREFOUT / ∆VIN VREFOUT Line Regulation 2.5V ≤ VIN ≤ 5.5V 26 mV ∆VREFOUT / ∆IOUT VREFOUT Load Regulation 1mA ≤ IROUT ≤ 10mA VIN=3.3V 612 mV ILIM VREFOUT Short Current Limit VIN=3.3V, VREFOUT=0V 25 mA ∆VREFOUT / ∆T VREFOUT Voltage Temperature Coefficient -40 °C≤ Topt ≤ 85°C ±150 ppm/ °C VFB1 VFB1 Voltage VIN=3.3V 0.985 1.000 1.015 V ∆VFB1/ ∆T VFB1 Voltage Temperature Coefficient -40 °C≤ Topt ≤ 85°C ±150 ppm/ °C IFB1,2 IFB1,2 Input Current VIN=5.5V,VFB1 or VFB2=0V or 5.5V -0.1 0.1 µA fOSC Oscillator Frequency EXT1,2 Pins at no load, VIN=3.3V 595 700 805 kHz IDD1 Supply Current VIN=5.5V, EXT1,2 pins at no load 1.4 3.0 mA REXTH1 EXT1 “H” ON Resistance VIN=3.3V, IEXT=-20mA 4.0 8.0 Ω REXTL1 EXT1 “L” ON Resistance VIN=3.3V, IEXT=20mA 2.7 5.0 Ω REXTH2 EXT2 “H” ON Resistance VIN=3.3V, IEXT=-20mA 4.0 8.0 Ω REXTL2 EXT2 “L” ON Resistance VIN=3.3V, IEXT=20mA 3.7 8.0 Ω TDLY Delay Time for Protection VIN=3.3V, VFB1=1.1V →0V 60 100 140 ms VUVLOD UVLO Detector Threshold 2.10 2.20 2.35 V VUVLO UVLO Released Voltage VUVLOD +0.10 2.45 V VDTC10 CH1 Duty=0% VIN=3.3V 0.1 0.2 0.3 V VDTC1100 CH1 Duty=100% VIN=3.3V 1.1 1.2 1.3 V VDTC20 CH2 Duty=0% VIN=3.3V 0.1 0.2 0.3 V VDTC2100 CH2 Duty=100% VIN=3.3V 1.1 1.2 1.3 V AV1 CH1 Open Loop Gain VIN=3.3V 110 dB FT1 CH1 Single Gai n Frequency Band VIN=3.3V, AV1=0dB 1.9 MHz VICR1 CH1 Input Voltage Range VIN=3.3V 0.7 to VIN V IAMPL CH1 Sink Current VIN=3.3V, VAMPOUT1=1.0V, VFB1=VFB1+ 0.1V 70 115 µA IAMPH CH1 Source Current VIN=3.3V, VAMPOUT1=1.0V, VFB1=VFB1- 0.1V -1.4 -0.7 mA AV2 CH2 Open Loop Gain VIN=3.3V 60 dB FT1 CH2 Single Gain Frequency Band VIN=3.3V, AV2=0dB 3 MHz VICR1 CH2 Input Voltage Range VIN=3.3V, -0.2 to VIN-1.3 V VFB2 CH2 Input Offset Voltage VIN=3.3V, -12 12 mV |
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