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R1211N002D Datasheet(PDF) 7 Page - RICOH electronics devices division |
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R1211N002D Datasheet(HTML) 7 Page - RICOH electronics devices division |
7 / 40 page R1211x 7 • R1211x002D Topt=25°C 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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