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RT8113 Datasheet(PDF) 8 Page - Richtek Technology Corporation |
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RT8113 Datasheet(HTML) 8 Page - Richtek Technology Corporation |
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8 / 21 page  RT8113 8 DS8113-02 April 2011 www.richtek.com To be continued Parameter Symbol Test Conditions Min Typ Max Unit RT/EN Chip Disable Threshold VDIS -- -- 0.4 V Running Frequency fOSC RRT = 60kΩ 180 200 220 kHz RT Pin Voltage VRT, GND RRT = 60kΩ, connected between RT/EN and GND 1.52 1.6 1.68 V RT Pin Voltage VRT, VDD RRT = 60kΩ, connected between RT/EN and VCC5 VCC5− 1.68 VCC5− 1.6 VCC5− 1.52 V Modulation Gain ARAMP RRT = 60kΩ -- 22 -- %/V Reference Voltage Accuracy 1V to 1.6V −0.5 -- 0.5 % 0.8V to 1V −5 -- 5 mV DAC Accuracy 0.5V to 0.8V −8 -- 8 mV Logic-Low VIL VID [7:1] -- -- 0.4 V VID Threshold Voltage Logic-High VIH VID [7:1] 0.8 -- -- V Error Amplifier DC Gain ADC No Load -- 80 -- dB Gain-Bandwidth GBW CLOAD = 10pF -- 10 -- MHz Slew Rate SR CLOAD = 10pF 10 -- -- V/ μs Output Voltage Range VCOMP 0.5 -- 3.6 V Maximum Current IEA_SLEW Slew 300 -- -- μA Power Sequence PGOOD Low Voltage VPGOOD IPGOOD = 4mA -- -- 0.4 V Soft-Start Delay tD1 After POR, from EN = High to VOUT Rising 0 -- 5 ms VBOOT Duration tD3 0.05 -- 3 ms PGOOD Delay tD5 Measured from final VOUT value to PGOOD = High 0.05 -- 3 ms Current Sense Amplifier Maximum Current IGMMAX VCSP = 1.3V, sink current from CSN 100 -- -- μA Input Offset Voltage VOSCS −1.5 0 1.5 mV Soft Start Soft Start Current ISS1 Slew 12 16 20 μA VID Change Current ISS2 Slew 120 160 200 μA Gate Driver UGATE Drive Source IUGATEsr BOOT – PHASE = 12V, UGATE – PHASE = 6V 0.6 1 -- A UGATE Drive Sink RUGATEsk BOOT – PHASE = 8V, 250mA Source Current -- 1 -- Ω LGATE Drive Source ILGATEsr VCC12 = 12V, VLGATE = 6V 0.6 1 -- A LGATE Drive Sink RLGATEsk 250mA Sink Current -- 0.8 -- Ω Protection Over-Voltage Threshold VOVP Sweep FB Voltage, VFB − VEAP 125 150 175 mV OCP Input Offset Voltage VOCOFS −10 -- 10 mV |
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