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LTC4009 Datasheet(PDF) 3 Page - Linear Technology |
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LTC4009 Datasheet(HTML) 3 Page - Linear Technology |
3 / 28 page 3 4009fb LTC4009 LTC4009-1/LTC4009-2 ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. DCIN = 20V, BAT = 12V, GND = 0V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Charge Voltage Regulation VTOL VBAT Accuracy (See Test Circuits) LTC4009 l –0.5 –0.8 0.5 0.8 % % LTC4009-1/LTC4009-2 l –0.6 –0.8 0.6 0.8 % % IVFB VFB Input Bias Current VFB = 1.2V ±20 nA RON FBDIV On-Resistance ILOAD = 100μA l 85 190 Ω ILEAK-FBDIV FBDIV Output Leakage Current SHDN = 0V, FBDIV = 0V l –1 0 1 μA VBOV VFB Overvoltage Threshold LTC4009 l 1.235 1.281 1.32 V BAT Overvoltage Threshold LTC4009-1/LTC4009-2, Relative to Selected Output Voltage l 103 106 109 % Charge Current Regulation ITOL Charge Current Accuracy with RIN = 3.01k, 5V < BAT < 18V RPROG = 26.7k l –4 –5 4 5 % % VSENSE = 0mV, PROG = 1.2V –12.75 –11.67 –10.95 μA AI Current Sense Amplifier Gain (PROG ΔI) with RIN = 3.01k, 5V < BAT < 18V VSENSE Step from 0mV to 5mV, PROG = 1.2V –1.78 –1.66 –1.54 μA VCS-MAX Maximum Peak Current Sense Threshold Voltage per Cycle (RIN = 3.01k) ITH = 2V ITH = 5V l l 140 185 325 235 430 mV mV VC10 C/10 Indicator Threshold Voltage PROG Falling 340 400 460 mV VREV Reverse Current Threshold Voltage PROG Falling 180 253 295 mV Input Current Regulation VCL Current Limit Threshold CLP – CLN l 97 96 100 100 103 104 mV mV ICLN CLN Input Bias Current CLN = CLP ±100 nA VICL ICL Indicator Threshold (CLP – CLN) – VCL –8 –5 –2 mV DCIN, CLP Supplies OVR Operating Voltage Range DCIN and CLP 6 28 V IDCO DCIN Operating Current No Gate Loads 1.5 2 mA ICLPO CLP Operating Current CLP = 20V, No Gate Loads 0.5 0.8 mA VCBT CLP Boost Threshold Voltage CLP – DCIN, CLP Rising l 10 25 60 mV VCNT CLP Normal Threshold Voltage (Note 5) DCIN – CLP, CLP Falling l 10 25 60 mV VOVP DCDIV Overvoltage Protection Threshold DCDIV Rising 1.75 1.825 1.9 V VOVP(HYST) DCDIV OVP Threshold Hysteresis 110 mV Shutdown VACP DCDIV AC Present Threshold Voltage DCDIV Rising l 1.145 1.2 1.255 V VACP(HYST) DCDIV ACP Threshold Hysteresis Voltage 50 mV IDCDIV DCDIV Input Current DCDIV = 1.2V –1 0 1 μA VIL SHDN Input Voltage Low l 300 mV VIH SHDN Input Voltage High l 1.4 V RIN SHDN Pull-Down Resistance 50 k Ω IDCS DCIN Shutdown Current SHDN = 0V 215 μA ICLPS CLP Shutdown Current CLP = 12V, SHDN = 0V or DCDIV = 0V l 918 μA |
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