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LTC4100 数据表(PDF) 3 Page - Linear Technology |
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LTC4100 数据表(HTML) 3 Page - Linear Technology |
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3 / 48 page  LTC1760 3 1760fa ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Supply and Reference DCIN Operating Range DCIN Selected 6 28 V ICH0 ICH1 DCIN Operating Current Not Charging (DCIN Selected) (Note 10) Charging (DCIN Selected) (Note 10) 1 1.3 1.5 2 mA mA IVCC2_AC1 IVCC2_AC0 VCC2 Operating Current AC Present (Note 11) AC Not Present (Note 11) 0.75 75 1 100 mA μA Battery Operating Voltage Range Battery Selected, PowerPath Function Battery Selected, Charging Function (Note 2) 6 0 28 28 V V IBAT Battery Drain Current Battery Selected, Not Charging, VDCIN = 0V (Note 10) 175 μA VFDC VFB1 VFB2 VFSCN VPLUS Diodes Forward Voltage: DCIN to VPLUS BAT1 to VPLUS BAT2 to VPLUS SCN to VPLUS IVCC = 10mA IVCC = 0mA IVCC = 0mA IVCC = 0mA 0.8 0.7 0.7 0.7 V V V V UVLO Undervoltage Lockout Threshold VPLUS Ramping Down, Measured at VPLUS to GND l 35 V VVCC VCC Regulator Output Voltage l 4.9 5.2 5.5 V VLDR VCC Load Regulation IVCC = 0mA to 10mA l 0.2 1 % Switching Regulator VTOL Voltage Accuracy With Respect to Voltage Reported by Battery VCHMIN < Requested Voltage < VLIMIT l –32 32 mV ITOL Current Accuracy With Respect to Current Reported by Battery 4mV/RSENSE < Requested Current < ILIMIT (Min) (Note 12) RILIMIT = 0 (Short to GND) RILIMIT = 10k ±1% RILIMIT = 33k ±1% RILIMIT = Open (or Short ILIMIT to VCC2) l l l l –2 –4 –8 –8 2 4 8 8 mA mA mA mA f0SC Regulator Switching Frequency 255 300 345 kHz fDO Regulator Switching Frequency in Low Dropout Mode Duty Cycle ≥99% 20 25 kHz DCMAX Regulator Maximum Duty Cycle 99 99.5 % IMAX Maximum Current Sense Threshold VITH = 2.2V 140 155 190 mV ISNS CA1 Input Bias Current VCSP = VCSN > 5V 150 μA CMSL CA1 Input Common Mode Low 0 V CMSH CA1 Input Common Mode High VDCIN – 0.2 V VCL1 CL1 Turn-On Threshold C-Grade (Note 6) I-Grade (Note 6) l l 95 94 90 100 100 100 105 108 108 mV mV mV TG tr TG tr TGATE Transition Time: TGATE Rise Time TGATE Fall Time CLOAD = 3300pF, 10% to 90% CLOAD = 3300pF, 10% to 90% 50 50 90 90 ns ns BG tr BG tf BGATE Transition Time BGATE Rise Time BGATE Fall Time CLOAD = 3300pF, 10% to 90% CLOAD = 3300pF, 10% to 90% 50 40 90 80 ns ns The l denotes the specifications which apply over the full operating junction temperature range, otherwise specifications are at TA = 25°C (Note 6). VDCIN = 20V, VBAT1 = 12V, VBAT2 = 12V, VVDDS = 3.3V, VVCC2 = 5.2V unless otherwise noted. |
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