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LTC4007 Datasheet(PDF) 3 Page - Linear Technology |
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LTC4007 Datasheet(HTML) 3 Page - Linear Technology |
3 / 24 page LTC4007 3 4007fc ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range (Note 4), otherwise specifications are at TA = 25°C. VDCIN = 20V, VBAT = 12V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Current Sense Amplifier, CA1 Input Bias Current Into BAT Pin 11.67 μA CMSL CA1/I1 Input Common Mode Low l 0V CMSH CA1/I1 Input Common Mode High l VCLN – 0.2 V Current Comparators ICMP and IREV ITMAX Maximum Current Sense Threshold (VCSP – VBAT)VITH = 2.5V l 140 165 200 mV ITREV Reverse Current Threshold (VCSP – VBAT) –30 mV Current Sense Amplifier, CA2 Transconductance 1 mmho Source Current Measured at ITH, VITH = 1.4V –40 μA Sink Current Measured at ITH, VITH = 1.4V 40 μA Current Limit Amplifier Transconductance 1.4 mmho VCLP Current Limit Threshold l 93 100 107 mV ICLP CLP Input Bias Current 100 nA Voltage Error Amplifier, EA Transconductance 1 mmho Sink Current Measured at ITH, VITH = 1.4V 36 μA OVSD Overvoltage Shutdown Threshold as a Percent of Programmed Charger Voltage l 102 107 110 % Input P-Channel FET Driver (INFET) DCIN Detection Threshold (VDCIN – VCLN) DCIN Voltage Ramping Up from VCLN – 0.1V l 0 0.17 0.25 V Forward Regulation Voltage (VDCIN – VCLN) l 25 50 mV Reverse Voltage Turn-Off Voltage (VDCIN – VCLN ) DCIN Voltage Ramping Down l –60 –25 mV INFET “On” Clamping Voltage (VDCIN – VINFET)IINFET = 1μA l 5 5.8 6.5 V INFET “Off” Clamping Voltage (VDCIN – VINFET)IINFET = –25μA 0.25 V Thermistor NTCVR Reference Voltage During Sample Time 4.5 V High Threshold VNTC Rising l NTCVR • 0.48 NTCVR • 0.5 NTCVR • 0.52 V Low Threshold VNTC Falling l NTCVR • 0.115 NTCVR • 0.125 NTCVR • 0.135 V Thermistor Disable Current VNTC ≤ 10V 10 μA Indicator Outputs (ACP, CHG, FLAG, LOBAT, ICL, FAULT C10TOL FLAG (C/10) Accuracy Voltage Falling at PROG l 0.375 0.397 0.420 V LBTOL LOBAT Threshold Accuracy 3C4C = 0V, CHEM = 0V 3C4C = 0V, CHEM = Open 3C4C = Open, CHEM = 0V 3C4C = Open, CHEM = Open l l l l 7.10 7.27 9.46 9.70 7.32 7.50 9.76 10 7.52 7.71 10.10 10.28 V V V V RESTART Threshold Accuracy 3C4C = 0V, CHEM = 0V 3C4C = 0V, CHEM = Open 3C4C = Open, CHEM = 0V 3C4C = Open, CHEM = Open l l l l 11.13 11.40 14.84 15.20 11.42 11.70 15.23 15.60 11.65 11.94 15.54 15.92 V V V V ICL Threshold Accuracy 83 93 1O5 mV |
Similar Part No. - LTC4007_15 |
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Similar Description - LTC4007_15 |
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