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R1211X Datasheet(PDF) 8 Page - RICOH electronics devices division |
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R1211X Datasheet(HTML) 8 Page - RICOH electronics devices division |
8 / 33 page Rev. 1.10 - 8 - q R1211X002D Symbol Item Conditions MIN. TYP. MAX. Unit VIN Operating Input Voltage 2.5 6.0 V VFB VFB Voltage Tolerance VIN=3.3V 0.985 1.000 1.015 V ∆VFB/ ∆T VFB Voltage Temperature Coefficient -40 °C≤ Topt ≤ 85°C ±150 ppm/ °C IFB VFB Input Current VIN=6V, VFB=0V or 6V -0.1 0.1 µA fOSC Oscillator Frequency VIN=3.3V, VDLY=VFB=0V 240 300 360 kHz ∆fOSC/ ∆T Oscillator Frequency Temperature Coefficient -40 °C≤ Topt ≤ 85°C ±0.6 kHz/ °C IDD1 Supply Current 1 VIN=6V, VDLY=VFB=0V, EXT at no load 300 500 µA maxdty Maximum Duty Cycle VIN=3.3V, EXT “H” side 82 90 94 % REXTH EXT “H” ON Resistance VIN=3.3V, IEXT=-20mA 5 10 Ω REXTL EXT “L” ON Resistance VIN=3.3V, IEXT=20mA 3 6 Ω IDLY1 Delay Pin Charge Current VIN=3.3V, VDLY=VFB=0V 2.0 4.5 7.0 µA IDLY2 Delay Pin Discharge Current VIN=VFB=2.5V, VDLY=0.1V 2.5 5.5 9.0 mA VDLY Delay Pin Detector Threshold VIN=3.3V, VFB=0V, VDLY=0V →2V 0.95 1.00 1.05 V TSTART Soft-start Time VIN=3.3V 5.0 10.5 16.0 ms VUVLO1 UVLO Detector Threshold VIN=3.3V →0V, VDLY=VFB=0V 2.1 2.2 2.3 V VUVLO2 UVLO Detector Hysteresis VIN=0V →3.3V, VDLY=VFB=0V 0.08 0.13 0.18 V ISTB Standby Current VIN=6V, VCE=0V 0 1 µA ICEH CE “H” Input Current VIN=6V, VCE=6V -0.5 0.5 µA ICEL CE “L” Input Current VIN=6V, VCE=0V -0.5 0.5 µA VCEH CE “H” Input Voltage VIN=6V, VCE=0V →6V 1.5 V VCEL CE “L” Input Voltage VIN=2.5V, VCE=2V →0V 0.3 V |
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